&EPA
            United States
            Environmental Protection
            Agency
           Office of Research and
           Development
           Washington, DC 20460
EPA/600/R-99/019
February 1999
Blind-B Performance
Evaluation Study
            A Statistical Evaluation  of
            the October 20,  1998 Data

-------
              Blind-B
    Performance Evaluation Study
         October 20, 1998
   Environmental Protection Agency
National Exposure Research Laboratory
   Environmental Sciences Division
         Las Vegas, Nevada

-------
            UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                        OFFICE OF RESEARCH AND DEVELOPMENT
                      NATIONAL EXPOSURE RESEARCH LABORATORY
                     ENVIRONMENTAL SCIENCES DIVISION-LAS VEGAS
                                  P.O. BOX 93478
                            LAS VEGAS, NEVADA 89193-3478
                                  (702/798-2100)
Dear Participant,

   Enclosed are the results of the Environmental Sciences Division (ESD-LV)
Performance Evaluation Study for Blind-B; October 20, 1998.
   The known value for each analysis was determined by gravimetric methods,
checked by chemical analyses performed by ESD-LV's Radiochemistry Laboratory,
and compared to the participating laboratories' grand average.

   The expected precision, determined by the known value, was taken from
'Table 3. Laboratory Precision: One Standard Deviation Values and Control Limits
for Various Analyses", which is based on data accumulated over the years by the
Performance Evaluation Program, and can be found in the Environmental Radioactivity
Performance Evaluation Studies Program and Radioactive Standards Distribution
Program information brochure.

   Please take a few minutes to review this report and the analytical data your
laboratory submitted to us. If there are any apparent discrepancies, please notify us
immediately.

   We encourage you to make use of the computer-automated data-entry system
that has been in place for some time now. As the number of participants increases,
and it becomes unrealistic for us to receive results by mail or FAX, the computer
system will be our only avenue for accepting data.

   If you have any questions or comments, please send a message via the data-entry
system or contact Stephen Pia at 702/798-2102 or Patricia Honsa at 702/798-2141.
                                          Sincerely,
                                          Stephen Pia
                                          Team Leader
                                          RADQA Program
Enclosure

-------
              NOTICE

This material has been funded wholly by
the U.S. Environmental Protection Agency.
It has been subjected to the Agency's review,
and has been approved for publication as
an EPA document.

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                ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998             1/43


   The following pages consist of separate sections for each of the nuclides in this study with four
parts per section. After the first, each part is separated from the next by a new page or a thick
horizontal bar. The first page of each section is a statistical summary for the nuclide and starts
with a statement of the known value, the control limits, and the warning limits.

   The warning limits are placed at two normalized standard deviations above and below the
known value and the control limits are three normalized standard deviations above ^md below
the known value. If you keep control charts, these values will be useful for anticipating problems
with the accuracy of your analytical methods.

   The coin shaped pie chart at the top of the summary page shows the fate of all the samples
sent out in number and percentage terms. The pie chart starts at the top and rotates clockwise.
The first sector represents those participants who submitted analytical results within both the
warning and control limits. The next sector represents those who are in the warning region but
not out of control.  The third sector represents those who are out of control, but have passed
the outlier test.  The fourth sector represents those who have failed the outlier test.  The last
sector represents those participants who have failed to respond properly. This is the case if no
analytical results were returned, or less than three determinations were  reported, or if the results
were received too late. The reeding on the edge of the coin is spaced at one percent intervals, and
the sector shading becomes darker as the data reliability decreases. Sectors with zero width are
not shown.
   The table in the center shows a number of statistical quantities calculated from the submitted
data based on the mean and median values in relation to the known value, both before and after
outlier removal. The lower pie chart uses the same construction as the upper chart and shows
the distribution of properly submitted data in terms of deviation from the known value divided
into sectors representing one, two, three, and greater than three normalized standard deviations.
   The second part is an alphabetical listing, in lab-code order, of submitted data and several
calculated quantities. An entry that is shaded has been rejected because of one of the reasons
listed above or failure of the outlier test. The fifth and sixth columns are a measure of laboratory
precision. The Range analysis is a normalized value that you may use to keep precision control
charts. The eighth and ninth columns are the differences from the mean of all non-outliers and
from the known value, respectively. If this value is between 2.0 and 3.0,  your analytical process
precision is in the warning zone; if it exceeds 3.0 it is out of control. A tag symbol may appear in
the last column. Each page with tags has a symbol definition summary at the bottom.  If there is
no tag symbol, the data is within the control limits, but it may be in the warning zone.
   The third part is a three-column listing of result average, tag symbol, and lab-code in average
order excluding those labs not responding properly. In this order, all outliers and out-of-control
results appear at the top or bottom of the list.

   The last part is two bar chart displays showing frequency distributions of responding
participants.  The first chart places the known value at the center and a bar at each 0.2 unit of
expected precision. The second chart places the mean of the reported measurements at the center
and a bar at each 0.2 unit of standard deviation. In both cases, a bar includes those results within
0.1 unit up to the maximum of six. Any results more than six units from the center  value are
shown cumulatively by a shaded bar one past the sixth unit. If the central tendency of the known
value distribution falls away from the center, an error in accuracy is indicated. If the distribution
is broad, poor precision is indicated. The mean value distribution is similar but uses the average
and standard deviation of reported results as its basis.

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2/43             ESD-LV Performance Evaluation: Blind-B,  20-Oct-1998


     The Range Analysis(R + SR) is calculated from the range, mean range and standard error of
  the range values. The range is the difference between the maximum and minimum results for the
  laboratory. The mean range is calculated by multiplying the expected precision by 1.693(for three
  results).  The standard error of the range is calculated by multiplying the mean range by 2.576(for
  three results), subtracting the mean range from this product, and dividing the result by 3. If the
  range is greater than the mean range, then the range analysis is calculated by subtracting the
  mean range from the range, dividing the result by the standard error of the range and adding 1.
  If the mean range is greater than or equal to the range, then the range analysis is calculated by
  dividing the range by the mean range.

     The normalized deviation of the mean from the grand average is calculated from the deviation
  of the mean from the grand average and the standard error of the mean values. The deviation of
  the mean from the grand average is calculated by subtracting the grand average from the
  average of the laboratory's three results. The standard error of the mean is calculated by
  dividing the expected precision by the square root of 3(the number of results). The normalized
  deviation of the mean from the grand average is calculated by dividing the deviation of the mean
  from the grand average by the standard error of the mean.
     The normalized deviation of the mean from the known value is calculated from the deviation of
  the mean from the known value and the standard error of the mean values. The deviation of the
  mean from the known value is calculated by subtracting the known value from the average of the
  laboratory's three results. The standard error of the mean is calculated by dividing the expected
  precision by the square root of 3(the number of results).  The normalized deviation of the mean
  from the known value is calculated by dividing the deviation of the mean from the known value by
  the standard error of the mean.
     A complete explanation of the statistical calculations involved in the report may be found in
  the Environmental Radioactivity Performance Evaluation Studies Program information brochure
  [Draft Revision of EPA-600/4-81-004], available from Patricia Honsa, ESD-LV, 702/798-2141.

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                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                   3/43
Gross Beta                          Statistical Summary                      175 Participants
The known value of this nuelide is 94.0 pCi/I with an expected precision of 10.0;  the control limits
are 76.7 to 111.3; the warning regions are 76.7 to 82.4 and 105.6 to 111.3
51(29.1 %) Failed to respond .,
1O(5.7 %) Outliers *
11 (6.3 %) Out of control -
      but not an outlier


         Statistic
                , 86(49.1 %) Within all limits
Respondents
17(9.7 %) In wanting zone
        but within control


           Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
    104.07
     93.80
   8799.07
     90.14
     10.71
      0.11
     95.03
      1.10
      0.01
 Grand Avg 94.20
             10.64
            113.12
             11.29
              0.21
              0.02
             95.03
              1.10
              0.10
21(16.9 %) More than 3 norm. S.D. ,
 17(13.7 %) Between 2 and 3 norm. S.D.
            .52(41.9 %) Within 1 norm. S.D.
                           of known value
    • 34(27.4 %) Between 1 and 2 norm. S.D.

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4/43
ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998

Gross Beta

Lab
A
AE
AF
AH
AJ
AK
AL
.jygfry.-. % ^
^jfTJCvv... _,
AR
AU_
AZ
BA

Res. 1
90.6
86.6
104.1
80.7
70.9
94.8
96.2

':^f^fฃ-"'4tfeH
105.9
_JH.8_
" 89.7 ~
109.0

Res. 2
95.4
86.3
103.7
86.0
70.0
94.3
94.2

^•^t^> ?'.,,
104.5
96.8
ll^&fP^n
84.7
109.5

Res. 3
93.6
88.7
104.4
81.9
73.1
96.4
95.7

*k^4^
106.7
v.-?6,^.
93.9
88.7
Exper.
Sigma
2.42
1.31
0.35
2.78
1.59
1.10
1.04

i&$jj$%f,r,v-
i.ii
im (
*" 4.61
11.87
! ^^'^^T^^f^^i^7i^r^^?;--1^7*-'-^ -^W ฃsT ' '"
•••JiM*A '- ^syV>v^^\*:dyy?-ky*'/, \*%*j/, ; .vrSSx^iyvv .1
BC
*. .. * r
*$BG*.
BH
BK
$ofr^
>XJJLซ •*
BM
BN
BO
BS
C
CA
'::C•. -./ "v""
90.1
,, , rxx-; -',5' \<•"••
94.5
105.0
K"^?*'*
96.7
72.2
105.0
92.0
99.9
95.7
* , % ** .. ' ** si s % \
*•#,<ฃ&$&ฃ.;
88.5
73.0

%•'"•••'"*;? '•,-<;?5*r"'V
^•^sife;!
1 T^y^^Mife-'"
88.7
100.4
100.0
92.9
94.0
96.4
106.0
>! '•!',' ..'•;> *- - " ',->
^s^'A !-<;./,%. ;'\;;
99.4
73.0
108.3
90.3
97.5
__88.9
^ -5\ 'V ,-';-• ^,% ,-•'•;•
91.0
83.0

;?'""";- ."x's- $ _, ,'"''$
y$$&jfaf^
SlSolฎ^
86.9
96.9
101.0
89.0
95.0
tjjjvC ^"~lp^'™ฃl>: 	 ,^ ;
.-DO!
DT
DZ
E
-IBB'1
1 -UVI- •'
.'EL , :
EO
{• y, *ป*•>__ ^s
.. JClJCir^
•> " WV"-'^ " *•% /•&
s - "jye f1^/ \s/' ,
X- t _, % s
92.6
90.5
96.4
~-~ :*160.6 ^
, "• ' ^ 's \ ^ '
* '*V - W *^i^.
96.0
• • •? '" 'V* o / '

-r-v >!---• "4 '
>-4{;\^-~. ",'
90.4
93.3
94.4
A-l60.0rY;
, t ซ,- ^>, , " A
%^% ' * ' ' >'.

99.0
,' ••'',*'•' ^ X' - % ^ J ^
ซ ซ.X'%>"' sVf- s\ •* " X
93.8
,• .".'•; f^-
~^'f-V~;
96.0
113.0
',*<** - '"? ' 5!
'-*•?•' ,Vป-,^
97.0
74.1
103.1
86.8
95.0
94.9
2.76
,"• vr-'-^^-^-v
i. ^ ^ V>
*v" >?•?•.•">,' •-
1.00
4.36
V--;^^,,.,;;4:v
1.48
0.95
2.63
2.65
2.45
3.72
/ ^^ซv ^•5-^*^', ^o; % ^s^^s*-1 " s "•="
v ' ?*" ^^v^$?^?^^x^^
89.9
68.0

ii^P^t
^4&Jr'
••92510;'
"84.0
95.1
100.0
88.3
96.0
-'^ %:> ^ ^ '••
•-V A>V^ -^''
**>,?ฃ. <
91.7
99.8
95.0
;1(80.6^
' 'j< 'A'''',;i!^< ^
Vv.vf -^
93.0
'•C^^^''
xu,./ ป'-•
• = No data submitted
0 s
Insufficient
data
X S
1.25
7.64
*** (v "s **" * *"" * ' % ' ,
^;V'^^ ''' '^'">
\*$ta&t&
^/!งs;6p'f^
""2.37'
2.70
0.58
2.48
1.00
"i**^v." •'•'•'' '•
.c-e &-••-.--,
•'?%; •< iซ/ ,
/ซ,^^''X
Rnganal
(R + SR)
0.284
0.142
0.041
0.313
0.183
0.124
0.118
, *ซ v ^svs j s v w \y,s.y*
<:'**&$&ฃ;<'*
o!l30
0.118
0.543
1.435
Normalized deviation
Average (grand-avg)
93.20
87.20
104.07
82.87
71.33
95.17
95.37
*JT; *^™ซi*% *$?* o^-^x?"*.

105!70
95.70
89.43
102.40
:' ' L ^ xy-fvfff •? , ,~*~v x—~,,
^•390^1 ^ 148190, Vt-^;
0.319^
,7' '---', A'! •>'-:

0.112
0.473
<$*, K^f*'- ^A
0.159
0.112
0.307
0.307
0.289
0.402
>-^?^ฅ:f'!
0.148
0.886
;? ' • ' ' ' /%'%
Y. - , ,,'^,V",
^'8.49^!
^4;721-'~,
0.278
0.313
0.059
0.272
0.118
^: :-*?s.
\^< -'f "" '
* ,Vf *" "
f', -* ^ s
0.130
0.549
0.118
-ซ^6'.o60->';-;
* ; ', — ~* ^-*^v^
^^M" '--1-: ' ",;
95.63
108.00
•i^'fyf *•/ V^J ^\ซ. ^ "• ^ ^/*A ^^
97.70
73.10
105.47
89.70
97.47
93.17
<^^iV: ->;•-•'- :'-'v,T.
89.80
74.67
•• ' "\ f A"*"' 'X '
	 : "'/'^"A'^^ ,
.^%2ii7^r%^
-:>90o;op^!yi
86.53
97.47
100.33
90.07
95.00
^*, ^ WA^.S~,^"-$s> ,v
•~X'-\- ; - ' • --'>'';,•;
-0.17
-1.21
1.71
-1.96
-3.96
0.17
0.20
rnซww5ปwwa^* ffff "v- * J
•> s^'-tjy* ••
,o-|& ^ , v ,/* s
1.99
0.26
-0.83
1.42
,;;or^-
J7ป* ป•;<-•"•-
-0.59
••"•>"ซ; .ป>"n— •
,:;^. .
0.25
2.39
"**• '>,tv' s • :
0.61
-3.65
1.95
-0.78
0.57
-0.18
'•. f "•* V"-. * " "'
-o!76
-3.38

•• _? ',*" ^v *' ^
-.' % A'z f ^•~'t\f-

3^57<;S
-1.33
0.57
1.06
-0.72
0.14
- "K^V'' - v
'•""/' /'„ -,\'--t',,C- - ' '
; , , : ' ::X< *,• . , ,'U ฃ*~<:^ -''•", ' - V
91.57
94.53
95.27
: :i6'6,6o^f"'?
•:^?>'>;:^v-4^
-0.46
0.06
0.18
4lf ป40;/ *":'.
ซ< ":•"•.';.
(known) Tag
-0.14
-1.18
1.74
-1.93
-3.93 JJ.
0.20
0.24

A - ป"*J,V** * sซ
-.' vfSv-' S •>• *"••!• s-1 Ti'U
2.03
0.29_ ^
-0.79 	
1.45 _
1^9\1liyr-y\>
-0.56
v^ v" "' * ^ * ^* "">X(^> ^ ปvA"yv
\,', ;V4f\, ,, t.
0.28
2.42
'•*^-S':? *ป; "
0.64
-3.62 U
1.99
-0.74
0.60
-0.14
ซT3^. ^;^-=-ฐ * ' '- **' A^*A j
^^ ''XVi* sv<',>- ""V '
-0.73
-3.35 U

• "-v '-;" ''! -! '•" *- '"'''
rio&T&S^x;'''-
'•> JbVV i^J\r*\ s ' * f^ ' '
1 9Q
0.60
1.10
-0.68
0.17
'•-,-•• % ,ป • ' ",
' x>, s. • -,' ,- ,'-'•• -
-0.42
0.09
0.22
': '"ii^' ' -x - ; .
- V " ),';,-, '- ,, ,'
s?v - • \*'"**A '-.''*•• "x^'''1 ' ; ' -' ' -;-^'4- ,"•;-:'''<>:'' -s;"""!"'i''^!; '''x'*';/ '• '" •' *' "'
3.00
'• ,'• /"•/'•' *' N"'"^
A". ># s *.\s;A"* *'ซ ^
0.354
••'•<>-;*',;'"'•. *>;(**
•*,i;,- * •!-' '

96.00
^-r,"f"i^y<^~-{<^f -
0.31
>T? 	 ^~
A\i , •-•'" v^. ••"•xii-- ^s^^x-H/*#foy>^'<^i t-^^'xrt^^x ^ /
TAG SYMBOLS
Determined
to be an outlier
0.35
•>•>* *v ^ /^ " * , "
% \ %'" %

Tt s Above control limit
II = Below control limit

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                ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                                5/43
Gross Beta
Lab    Res. 1
                                   Exper.   Rng anal            Normalized deviation
                Res. 2    Res. 3     Sigma   (R +  SR)   Average  (grand-avg) (known) Tag
                                             0.703
                                                       105.97
 2.04
2.07
                                           ^oj54      86.oo_    -L4?U_ 5^l.

                                          *~  a095	~92~27	"""^g^p'"* ™JOฃQ
                                  l^sl^ollslj
                                  g^^^^^-* ry^
• s No data submitted
0 = Insufficient data
                                    TAG SYMBOLS
                                 Determined to be an outlier
ft s Above control limit
Ji s Below control limit

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6/43
         ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
Gross Beta
                                     Exper.   Rnganal            Normalized deviation
Lab     Res. 1    Res. 2    Res. 3    Sigma   (R + SR)   Average   (grand-avg)  (known) Tag
         89.9
           91.4
           94.5
           2.35
            0.272
                                         91.93
                                                                      -0.39
          -0.36
.-NBS
*>* iN1 s,
NP
P
OB;	   _	
OF      81.6       78.0 _^ 88.5      5.34     0.620       82.70      ^1.99   _ ^-1JJ6

OS      84.0       84.0      81.0      1.73     0.177       83.00      -1.94      -1.91
 98.6
120.8
                                           irtc >'Xf-c> rk^r^>y'5- {i*
                            106.7     11.23     1.593       108.70
•fsjfr.:r~^^%^%f^-'^^;:r:^.^^^^'y-^':^^^ w*ฃ?r;.."
itm^T^'t :?Vt4< *b?v ^* -V^f^'^S^.i* ;• -^"TC vV'^AWC*s, 'y ^-'^v^
:^"=-?^feซ^^^^^^BM^ซ''^^',/',f^i  v/;   -••: 'v.V- <-.;:r^ xy.s,/^"/r*-.
PG     105.3     103.1     105.3      1.27     0.130       104.57
PM     95.8      97.6     101.3      2.80     0.325        98.23
                                                                      2.51
                                                              2.55
Q
QM
QP
QQ
QT
QU
QW
QX
QZ
RB
BD,
103.0
 62.2
 89.8
 94.8
 96.8
 96.7
 99,9
 95.3
 74.5
103.0
101.5
 63.5
 78.9
 96.7
 90.8
 94.5
 99.9
 95.9
 78.6
106.0
\ฃ: '>-,-'
 104.7
  73.8
  87.2
  92.9
  91.5
 102.0
  95.6
  95.9
  78.4
 102.0
    ''->'•-
   1.27
   2.80
• r.-^ta&fz-y -
.  ; ' %--',
   1.60
   6.36
   5.69
   1.90
   3.28
   3.86
   2.48
   0.35
   2.31
   2.08
                              0.189
                              0.685
                              0.644
                              0.224
                              0.354
                              0.443
                              0.254
                              0.035
                              0.242
                              0.236
                              oaoo
                                                           103.07
                                                            66.50
                                                            85.30
                                                            94.80
                                                            93.03
                                                            97.73
                                                            98.47
                                                            95.70
                                                            77.17
                                                           103.67
 1.80
 0.70
' -.X" v<%'''

 1^54
-4.80
-1.54
 0.10
-0.20
 0.61
 0.74
 0.26
-2.95
 1.64
                                                                                 1.83
                                                                                , OJ3.

                                                                                 1.57
                                                                                -4.76
                                                                                -1.51
                                                                                 0.14
                                                                                -0.17
                                                                                 0.65
                                                                                 0.77
                                                                                 0.29
                                                                                -2.92
                                                                                 1.67
RZ
S
SD
SF
SG
SI
SL
SM
SN
SO
-•8Rl-
ss
sx
T
92.1
117.6
98.0
114.4
104.9
79.0
70.7
87.3
97.2
92.1
? v;To v ~
84.9
95.3
95.5
94.7
120.9
104.1
109.0
97.1
82.7
72.5
88.8
95.4
89.2
, "* T,'^ Wv"(
87.6
101.1
95.3
94.9
119.5
105.8
107.0
96.1
81.9
72.0
87.8
94.8
92.6
',C :.'':-'
82.6
100.6
99.7
1.56
1.66
4.10
3.83
4.82
1.95
0.93
0.76
1.25
1.84
,-ฃ '^'"/*'/-^'-^;'
2.50
3.21
2.48
0.165
0.195
0.461
0.437
0.520
0.219
0.106
0.089
0.142
0.201
-r* si*\^, ' "t\* *''*"' ,\
0.295
0.343
0.260
93.90
119.33
102.63
110.13
99.37
81.20
71.73
87.97
95.80
91.30
V^%'-)^ X';-^
85.03
99.00
96.83
-0.05
4.35
1.46
2.76
0.89
-2.25
-3.89
-1.08
0.28
-0.50
V;ฃL.~\
-1.59
0.83
0.46
-0.02
4.39 It
1.50
2.79
0.93
-2.22
-3.86 U
-1.05
0.31
-0.47
V "•••!• //'""'X '. /-*
-1.55
0.87
0.49
 • = No data submitted
 0 = Insufficient data
                             TAG SYMBOLS
                       x = Determined to be an outlier
                                                   ft = Above control limit
                                                   It = Below control limit

-------
                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                              7/43
Gross Beta
Lab
Res. 1     Res. 2
                                      Exper.   Rng anal             Normalized deviation
                            Res. 3    Sigma   (R + SR)   Average   (grand-avg)  (known) Tag
 TD
m
^TN
 TQ
 TY
 U
 92.1

 65.6
 85.4
 95.6
103.5
 95.7
JK^K
 70.9
 87.2
 94.8
 97.9
 99.8

 74.4
 90.8
 94.8
100.4
 3.85
jytt^s^v,™^
fe^cl
 4.43
 2.75
 0.46
 2.81
0.455
                                                0.520
                                                0.319
                                                0.047
                                                0.331
                                                            95.87
                                                    70.30
                                                    87.80
                                                    95.07
                                                   100.60
                                                               0.29
                      -4.14
                      -1.11
                       0.15
                       1.11
 0.32
ฃW*|
ป•*$
-4.10
-1.07
 0.18
 1.14
li
                                                                                 j^wrf""-* ^r ^ ซ-rrv'''ซ^\
                                                0.413
                                                0.413
                                                   101.33
                                                   100.67
                                                           109.10
                                                            82.30
                             85.6
                             107.0
                             102.5
                             109.0
                             95.0
                             84.6
                             89.4
                                         0.366
                                         0.177
                                         0.585
                                         0.975
                                         0.278
                                         0.508
                                         0.325
                                                             87.27
                                                            108.00
                                                             96.83
                                                            100.83
                                                             91.97
                                                             79.73
                                                             92.63
                                                0.112
                                                0.118
                                                    91.43
                                                    91.00
                                         1.019
                                         0.467
                                         0.106
                                         0.171
                                                            86.40
                                                            91.43
                                                            86.23
                                                            72.33
Average
       Tag
                             Data sorted by Laboratory Average
                          Lab  Average	Tag	Lab  \ Average
                                                                     Tag
                                                                     Lab
    4.23
    4.67
         x
         x
                           RD
                           FN
                           8.57
                          36.47
                            x
                            x
                            AW
                            HI
                           44.03
                           66.50
                                        KE
                                        QM
 • = No data submitted
 0 s Insufficient data
                              TAG SYMBOLS
                        x = Determined to be an outlier
                                                                       ft = Above control limit
                                                                       li s Below control limit

-------
8/43 ESD
Gross Beta
-LV Performance Evaluation: Blind-B, 20-Oct-1998





Data sorted by Laboratory Average
Average Tag
70.30 Ji
71.33 li
71.73 U
72.33 11
73.10 Ji
74.67 U
77.10
77.17
79.67
79.73
80.50
81.20
82.30
82.70
82.87
83.00
83.87
84.07
84.67
85.03
85.30
86.00
86.23
86.40
86.53
87.20
87.27
87.80
87.97
. 88.67
89.43
89.70
89.80
90.07
90.60
90.77
90.93
91.00
91.30

• s No data submitted
0 = Insufficient data
Lab
TN
AJ
SL
XN
BN
CJ
FF
QZ
NH
WW
KT
SI
VI
OF
AH
OS
ID
RK
LF
SS
QP
FL
XM
XK
CX
AE
W
TQ
SM
K
AZ
BS
CE
DD
VJ
BC
NJ
XI
SO

Average Tag
91.43
91.43
91.57
91.93
91.93
91.97
92.27
92.63
93.03
93.17
93.20
93.90
94.17
94.53
94.80
94.80
95.00
95.07
95.17
95.27
95.37
95.63
95.70
95.70
95.80
95.87
96.00
96.30
96.83
96.83
97.47
97.47
97.60
97.70
97.73
97.93
98.07
98.23
98.47

TAG SYMBOLS
x = Determined to be an
Lab
XL
XF
DT
O
HP
WR
GQ
X
QT
CA
A
RZ
EX
DZ
VO
QQ
DE
TY
AK
E
AL
BH
QX
AU
SN
TD
EO
HL
WH
T
D
C
JE
BM
QU
NA
I
PM
QW

Average
99.00
99.37
99.37
100.33
100.60
100.67
100.83
101.33
101.37
102.30
102.40
102.63
103.03
103.07
103.67
103.67
104.07
104.33
104.57
105.27
105.47
105.70
105.97
106.33
107.13
108.00
108.00
108.67
108.70
109.10
110.13
115.07
119.33
120.40
124.30
136.70
148.90
160.00
721.77
900.00
tu
outlier !!• =
Tag































tr
tr
rr
tr
X
X
X
X
X
Above control
Below control
Lab
SX
SG
JM
DB
U
UQ
WO
UP
RI
JS
BA
SD
GZ
Q
RB
HK
AF
LR
PG
MF
BO
AR
EV
KX
L
WE
BK
JN
P
VH
SF
LL
S
MV
JQ
VT
BB
EB
CP
CS
limit
limit

-------
                 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998             9/43
Gross Beta

 % responding labs	Frequency distribution
 KH	
     -6            -4            -2            0            +2            +4            +6
                     Normalized deviation of the mean from the known value


 % responding labs	Frequency distribution
 10-
     -6           -4            -20            +2            +4            +6
                     Normalized deviation of the mean from the grand average

-------
                  ESD-L.V Performance Evaluation: Blind-B, 20-Oct-1998
                                  10/43
Strontium-89                        Statistical Summary                      175 Participants
The known value of this nuclide is 19.0 pCi/1 with an expected precision of 5.0; the control limits
are 10.3 to 27.7; the warning regions are 10.3 to 13.2 and 24.8 to 27.7
112(64.O %) Failed to respond •
5(2.9 %) Outliers
2(1.1 %) Out of control -
     but not an outlier


         Statistic
               / 51(29.1 %) Within all limits
Respondents
• 5(2.9 %) In warning zone
        but within control


           Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
     18.87
      6.43
     41.34
     34.08
     -0.70
     -0.02
     18.33
     -3.51
     -0.10
 Grand Avg 18.25
              3.33
             11.10
             18.26
             -3.96
             -0.23
             18.33
             -3.51
             -0.20
8(12.7 %) More than 3 norm. S.D. ป
4(6.3 %) Between 2 and 3 norm. S.D.
             45(71.4 %) Within 1 norm. S.D.
                           of known value
       6(9.5 %) Between 1 and 2 norm. S.D.

-------
11/43
ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
"1
Strontium-89

Lab
A
AE
AF
, .'~ • "'
vAH'
AJ
AK
AL
,**>.ซ " "•"' '
•~A&,
•v - -
AH
sAu'v
AW
AZ
BA
BC
BG
BH
BL
BM
BO
:^BSi "
C
CA
yc& "
^CE -
CJ

• CO
CP
_cs_
D
*i>B"
DD
DE
'ibi : :
DO
DT
~TV7
E
EB
EL
T&O
:,iฃfi*
• =
0 s

Res. 1
19.0
17.0
18.0
•. *"••. /0* Nsnw!?*"^ *•""
v t f. ' ฅt
<*~ •?'„ •• '•v^'VjS*- 'v
is X)
19.0
19.0
<*-vV x " '•\*Jv'i"iV' "• ;v *
IvY*'ป^ >vr^/
•>;•"•*'' V<> *C ,' •^\'v ;
^<;^ v >„">-, ^v;
- vi^32Lb;g
20.0
18.0
__J!0.p_
17.0
*>S V5ฃ?>
_2; ^''^r-
23.0
17.0
/ ->';'.?>-'fi?r

Res. 2
19.0
18.0
17.0
,, !*;t,tซW "
','st s ><--V, ^-;-
21.0
18.0
20.0

;,_ ^^
\^'"Jฃ'' •.<'^\^'V''V
,^;^'^,,s;
^-^40:6^
21.0
19.0
^,JM...ซ
18.0
^;-^^7^;
27.0_^
19X)
19.0
21.0^"^
Zs^/i*^^^ "
21.0
20.0
i;,-'^ , ป}>^v;'<~
VT'''-'^^:.-'^
17.0

•'•"a.Cs6;Q ''t';;
11.0
25.0
18.0__
,/; f^fg^'5' ---;'
22.0
17.0
-,-. •ฐ*y -,K-ti
22.0
16.0
v: '; ',*? "<. "• '
'•r'^^.v

Res. 3
20.0
18.0
19.0
f.f ffW.ffฃV^ , ^ffffff^
f:^: 's\'^v
20.0
18.0
18.0
'* A1*-*"^1" <^r' y\V
,&,V.*iSฃ
5 s ; >-"' % c
. -.Vi" A<>vVx O
 "Vxy--
'' , ' • . -M
Exper.
Sigma
0.58
0.58
1.00
' '"• jF-y™ '<,"+"•*•'• *
,^; >*t!-V,/;^f ' -
1.53
0.58
1.00
•• f? *-. ** w <**• s
} - --Xx-->-: . ,
* ^ * >*t . „ -*
>•<<•' - /;- --'
"'-*X !•!'**!"*
-vt> x. - -
!^i2;o^S-;:%4.62-
22.0
18.0
20.0_
18.0
^;.rrf-/'>
27.0
18.0
_.20.0..,
2OO
]?$&•** ;-~>i
20.0
18.0
^.''<&f$i*. -
'.H!T-C; .-5*1-
18.0

V-* ";1*OV,.
13.0
22.0
_15.0_^
^o^"/^
18.0
17.0
,,''3^v'V, •
18.0
17.0
-A!"^r?™7f7
20.0
21.0
18.0
,' \ ';>'7-' ,
"^^ ,'l;;
No data submitted
Insufficient
data
X s
1.00
0.58
	 o.ppm
0.58
-v*^7:ฃ\' '
^__0.58^
1.53
_ ^0.68_
_,0;58
i^fixfVx1- H
0.58
2.00
,\^1'/-' ;_,;'
;i= -/!'!/,'r^4
1.53

%,**^"2ป6S'v
2.00
^ _1.53 _
,__H3Mi
;T^">^45"
2.65
0.00
sJV,;'*^ ;---'
2.08
0.58
:-!""";!™'7*"''"J'I"f
1.53
0.00
0.58
^<^.,,^^,,,
^,'Yf^-V~
Rnganal
(R + SR)
01118
0.118
0.236
f -.^ -ft. ffff,^ ^V V. A A _, f Jf.
^rV*",^'/'cX
0.354
0.118
0.236

, .•,* „ , — *>\-i7X "\
"<• '<>;"-;.-- s;iX,!^,
* " r- -^^ " l ••
'---- ,--'--;-• ... ""•
' - ^OJMjSifJ
0.236
0.118
0.000
0.118
77crr^''",^;'w
,„ ,J?;*!8.
0.354
^0.118 	
0.118
•TJ'"^'"C',^,>'x,V.
0.118
0.473
s 's ' ' j
// • •//•'••/'; '>
' ,;,, V,',-,V*' *•''>
0.354
' * x ' '' /

0.473
0.354
._.„ 0.354^
"''- i'j, .'-,,'r~/?-'
0.591
0.000
,\; -^ ^ ,,ซ^/\
0.473
0.118
'!-X7~^ ^--"i-^™'--.
0.354
0.000
0.118
^ '', 'r*ff'
"-, - , .- ''"'/'.f-'V;
Normalized deviation
Average
19.33
17.67
18.00
~-?— !ปSJป-V;\ ";•"
;f .,^4, ; . *• >
19.67
18.33
19.00
% v v"11^^ *0 *av*'' *
'-\*Jr'V->- ^'^
/-^€\,- ป. '
J t\* S v '
x;,, ^<<'(>
'-vfaie1?-'
21.00
18.33
,J-0.00_
17.67
f^^Y?^
^ Je.67 '^
19.33
19.33
20.33
T-';^"^AI;:'^
20.33
18.00
' 'A'C- •f-'';
''/,%' ' v.;
18.33

-%^4.00 '
13.00
23.33
17.00
'-il'/jW^, >I
21.00
17.00
i^Tl'f \'*~* '
19.67
16.67
•"X^'T-"1 '"^IT^
19.67
21.00
18.33
'- :r3"';3^-tC'"(
;,}:^'''v-^
TAG SYMBOLS
Determined to be an outlier
(grand-avg) (known) Tag
0.38
-0.20
-0.09
'X^*A% , sv •*" ' ^ •,
* ^ %%T ^ " ^ J^
,,>c^5;69, ^
0.95
0.03
- _J);61__
-0.20
^^t*™' >
^^lA9k.,^ป
0.38
_^q.38 	
0.72
*ฃ'> - fc^C "vr^'" v
0.72
-0.09
wv •- "' ", "' *
^?^'^'"':/.\:i
0.03

' l^-;^:-::;''%
tt s Above
li = Below
0.12
-0.46
-0.35
f Y" •• f" •- sw\ 5 MS rt*. •. V f ,
f "• ^ ^t,'*11) %^ "*
^V •. ' Y * " ^ ^ '*
0.23
-0.23
0.00

v', ' ,-^?>ป,,'
' -,.-, :? -,? - •<< '->
- ''^ <<>>*.' '
'*6.43xV-v:<,
0.69
-0.23
J>.35_ ^
-0.46
:,ซ'.-^v'ป,;'
w,2.66^_.,.,,.
0.12
0.12
0.46
T ":.>5lv'-^<-'ซ" :
0.46
-0.35
t^!^'x//;-i'!"',;*.- -
;,,*; '-*>" -'^ป' ?-
-0.23

. *-5i20 ':'''• ''X
-2.08
1.50 	
-0.69_^__
,..^,^™^^.
0.69
-0.69
""- - '_ l;i
0.23
-0.81
'"^•y~-\" •- -"-• ,'
0.23
0.69
-0.23
:',,\/"-' h „ :
•^t.vV.y-"
control limit
control limit

-------
                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                             12/43
                                                                     Normalized deviation
Lab     Res. 1     Res. 2     Res. 3 _ Sigma   (R + SR)   Average   (grand-avg)  (known) Tag
      8t^,OV,U - xv^^^u^v^^^JiW*? :  <,WฃX31W-ซ W.W^x^;JLIUHJ &*}\;^V>l*:ฃ$>:3!3Lk
      y^^^l^^^^y^^^^^^^-^^ l>\^-:- '  *  y- - -"4V-f\,::  ^ \:i-l%^<"%:;rซ
      ?-t!rx|?^^S^i 1-"~vV,^r>:x ^f vi*™ ^^ -5^^-*,- -V*-!*^%^t: \\t' - * *\**!ป -„ ->  , ™S;^,^i\^, - !>i*&V* - ^- > I" ~'*^^




      ^"^19.0^ w'~"l9:'o "^ 'O.OO  "'   0.000  "    _ 19.00^  ' % ^ 0.26   _"^  ,ฐ;PpH  J
            .          .          .         .         .

          ^-^^^'T^a-i- -^A-^vif ^ ->^X^^-I-; > ~" -"-^s-- ^
          ^^!^^^^^ซ^&r^li<-^^^*. ^^^'-rrvC^r;^'

          12.0      13.0       13.0       0.58      0.118
                                                              17.00      -0.43      -0.69
                                                              18.67       0.15      -0.12
18.0       19.0       19.0       0.58     0.118
                                                              16.00      -0.78      -1.04
 • = No data submitted

 0 & Insufficient data
                             TAG SYMBOLS

                           Determined to be an outlier
s Above control limit

= Below control limit

-------
 13/43
                    ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
 Strontium-89
                                         Exper.    Rng anal             Normalized deviation
 Lab    Res. 1     Res. 2      Res. 3     Sigma   (R +  SR)   Average  (grand-avg)  (known) Tag
                                           3.06
                                           0.58
                                                                  -  y/%V-. •> *>  < <.*V" -.1    •,-.  *"*  W , S •-,*•   *
                                                                 -V --*^/v?v,v.-^,., ;--;--->- '->-- - -?>->-/--,---- x,---;\
                                                                 '      *L*  ,> "•  ; <  - ^    .Jw s  , ^   M %
                                                                  ^ v " *,J^*  $A * * ฃ%   *  *  v. ^ ' v"; * J  ,'s *

                                                                 22.33       1.42        1.15

                                                                 10.33      -2.74      -3.00
                                                                                       -0.81
                                                                                       -0.92
!';ซ-  -, . ,.,{'.--.''--'",J.<;- ;\ "-,'-;r,<:;'---''" 'v-'--' ;  \"--    ,    ''"-,,„    '  -'  .'
 jyp,<- - ---, '< • c-J   -   '    -  .,- •  '--.  ,,--;-'',-  ,    -,--,-'• ^  , i    !--- ,,-

 ***v*---- -..-''-'-^.  / ''   -  -*     ,-'---.-  '    -   /'      - "   - *    '-
-i-*!™ \ /;//'•'- ':?-'- --  '-•-"^k"""''C&']''.V':'V;VX-.,^   ''* v" .-•',-'.
' •-K.1.1 J   *    ^>%  s   ^ ^' ^  f <• f •.ff*f }•. /^^^^''v     '  's  ' ••"^
, *W^* % ^    X?^,-:''V;'|^/:>;/
                                                                                " " ' ••; % ,  <• ',. ',  s1- ,, ^ s <, ^ j  '
                                                                                :.;*/••..'.•'.'ซ'.•;••'-•'  i
                                                                                ^•^*ฃ#??;
     , -- '-;>"' ^ \' , -

 S        17^0
 SD
19.0
                      17.0      18.0       0.58      0.118
                      22.0      20.0       1.53      0.354
vsGf5^v::;'^ ^^:;;:^?4^:AA'  'A*':^.';^/" ซV,'
^-^ซ:;., /-, - ^^^:* ^ v-X;- :#;;:
 'SLS ;-- --' ;'1<- -- "• - -"' --' -V "'----^! - •' -!-^;'.'SV^A ^-v- r'- "'•'-'' "-•-" -- - - '-'-
 SM _  JL2JO 	 ,.13.0, _,„ JL?ฃ, ,  „ ฐ-J?.8_,_9.:1i8^
 N SN \ _   ^ ^ ^ ;_, 1; ,'„  ^ ป, ^ _ f,; '-•" ,v; j/:/-;s >,">:  / - - ]>•'; !';<-, - '-5- ^',,!.  ' •-
 -Cif\ - - v '   >'-.-.-,  '"- "!'-1 " V^ • '""''".'.'''/"-''••'„ "/'-', ''' •" - '-  '^'-X—•.'?,-,'-*,•'-, '• ','
:~tS\f -, ,'     ;,\  - -  '        --.  --" <';-•<  „ '• ,_ ,- ^ , -,; -, -•'  >'y  ,',-,-
 ^4wซ^ "" ''"" ^ ^ tV"^"' -.'' ^    ' ^ -. *", "" ''"'%^'' "• ''  * *" '"'"''*  "j i*  ^<•*•*'  /   "" ' X '  /    •"^  ^
17.33      -0.32      -0.58
            0.72       0.46
          > ^ '-,.'•.'"•'"  "•*•ฃ  . -   v* ซ* ••' ""
  20.33
 - ,-,-<•-'- ---.-
$t^r
     ••$..
                                                                          - .,„.ป  -  "--*,->•  >* -x"  -' •;
                                                                          ;r -f -';•*;---"'--  -•-.--•>-; •-'  --\;
                                                                 12.67
                                                                 r1.93 _ ^ _-2.19^ ^
 SR
 SS       15.0       13.0       14.0       1.00      0.236
lsxV> -::'"-:;\/- •.: v^- •- ;7-;.".*>r<'- :5-^;v-%' "iv^-A;^'-
 T        16.0       17.0       19.0       1.53      0.354
                                                                 14.00      -1.47
                                                                -', :.••-?•-?- ^; -•;;<";5'\ •; -/-
                                                                 17.33      -0.32
                                                                            -1.73

                                                                            -0.58
  • = No data submitted
  0 s Insufficient data
                                         TAG SYMBOLS
                                  x s Determined to be an outlier
                                                                11 s Above control limit
                                                                li s Below control limit

-------
                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                            14/43
Strontium-89
                                      Exper.   Rng anal             Normalized deviation
Lab     Res. 1     Res. 2     Res. 3     Sigma   (R + SR)   Average   (grand-avg)  (known) Tag
TD
17.0      16.0
20.0
2.08     0.473
17.67     -0.20      -0.46
                                                              8.33      -3.43      -3.70
y(lw^~Jf2ฃL ,„„,,ซ, ,8'9	&?... „,,_ l-PJH.„	k??6   „ - ซ.?-9?.,_ J?-2?..  _ x,.-3.46^ _^

W        17.6   "*   19.0       18.0      LOO     0.236       18.00      -0.09     -0.35
                                                             16.67      -0.55     -0.81
XK       26.0       25.0      20.0
XL       23.0       24.0      25.0
XM      19.0       22.0      24.0
                               3.21      0.709      23.67       1.88       1.62
                               1.00      0.236      24.00       1.99       1.73
                               2.52      0.591      21.67       1.18       0.92
          19.0
           16.0
 16.0
 1.73      0.354
17.00      -0.43      -0.69
Average
4.00
5.67
Tag
X
X
DC
Lab
CO
XI
ita sorted by Laboratory Averag
Average Tag Lab
8.33 U UP
9.00 U VO
&
Average Tag
10.33
12.67
Lab
QM
SM
 • = No data submitted
 0 ^ Insufficient data
                             TAG SYMBOLS
                      x s  Determined to be an outlier
                                             Above control limit
                                             Below control limit

-------
15/43 ESI
Strontium-89

Average Tag
12.67
13.00
14.00
16.00
16.33
16.67
16.67
16.67
17.00
17.00
17.00
17.00
17.33
17.33
17.67
17.67
17.67
17.67
18.00
% responding labs

10'



-6 -4

% responding labs

10*

n ฅ •

-6 -4

• = No data submitted
0 = Insufficient data
3-LV Performance Evaluation: Blind-B, 20-Oct-1998

Data sorted by Laboratory Average
Lab Average Tag Lab Average Tag
HP 18.00 TQ 19.67
CP 18.00 CA 20.00
SS 18.00 AF 20.00
NJ 18.33 EL 20.33
QW 18.33 CJ 20.33
X 18.33 AZ 20.33
QU 18.33 AK 21.00
DT 18.67 VH 21.00
Y 18.67 L 21.00
JS 19.00 LF 21.00
DE 19.00 HK 21.67
D 19.00 AL 22.33
T 19.33 BM 23.33
S 19.33 BL 23.67
TD 19.33 A 24.00
K 19.67 U 26.67
BC 19.67 FE 34.67 x
AE 19.67 E 36.00 x
W 19.67 DO 50.00 x
Frequency distribution
	 •, • 	 	
	 _ป - -™_

III li.
.. . •-_ 111111111 _ •. .

-2 0 +2 +4
Normalized deviation of the mean from the known value
Frequency distribution
. •
wf "•"" fl
•••HI •
.. . •- . -IIIIILiL. •- .


Normalized deviation of the mean from the grand average
TAG SYMBOLS ft * Above
x & Determined to be an outlier 11 = Below



Lab
AJ
I
BA
SD
C
BO
JE
EB
DD
AW
XM
Q
CS
XK
XL
BH
AU
CX
GQ




• • m

+6





. i

+6

control limit
control limit

-------
                  ESD-LV Performance Evaluation:  Blind-B, 20-Oct-1998
                                  16/43
8trontium-90                       Statistical Summary                      175 Participants
The known value of this nuclide is 8.0 pCi/1 with an expected precision of 6.0; the control limits
are 0.0 to 16.7; the warning regions are 0.0 to 2.2 and 13.8 to 16.7
109(62.3 %) Failed to respond ,
2(1.1 %) Outliers	
        Statistic
               ; 64(36.6 %) Within all limits
Respondents
         Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
      7.66
      2.84
      8.04
     37.04
     -4.29
     -0.12
      7.33
     -8.33
     -0.24
Grand Avg 7.24
            1.61
            2.60
           22.27
           -9.44
           -0.47
            7.33
           -8.33
           -0.41
2(3.O %) More than 3 norm. S.D. -.„
           ; 58(87.9 %) Within 1 norm. S.D.
           *
                           of known value
                                                           6(9.1 %) Between 1 and 2 norm. S.D.

-------
17/43 ESD-LV Performance Evaluation: Blind-B,
Strontium-90
Lab
A
AE
AF
•\t^fff
^•/\D,",
AJ
AK
AL
Res. 1 Res. 2
8.0
7.0
8.0
"^^Xgrgp&^&g? -T™
"'/"s^-i?;^;-""- , J&lif'!
8.0
7.0
8.0
rrA^^'^^^^B^r"^;"
"\'Af ,- -"\-^- -&!r .* -X-,., '~,'y,l i^U-
;v v* ' 34 s
••Aitf
AU
AW
AZ
BA
BB
BC
VB&
BH
A VN 1 ff
BK .
BL
BM

•• % %" '"' o  < ^ -
7.0
7.0
8.0
^";^S*"^;
iC^' 3^'*- X *'*
7.0
8.0
8.0
Res. 3
7.0
6.0
„ „,.?ฃ„,
'* * * \jซE?-'ii ^^'
^•.> •" "• v* V&J*!-** ""• '
8 JO
7.0
8.0
w^.,^,^- ~; y,,^,,,^,^.^,.,. ,,
'•,/^S^-rU^tJ^r

v '"•'s * *'^ s''vAJs5 *v' ' " V *"* ' % ^S'S> i1- '
v^^ ^rc^ ,/?--' H/ " AM>
6.0
8.0
7.0
8.0
7.0
^^5.0v
^I^'^SS^"
8.0
•+•' vf-ซK^v '"ฃ•*• fffS\ *• *VAVAV ^ -.^
<:>-l;; ^W- -r-
7.0
7.0
AK'Aww^m^y, v-ff.ff^v.^^vff, •*<•. .v.
~ -BN v> ' > v; ', - ;<**ป - ฃ '<•'":' '•
BO
-fill
C
CA
A
cc
CE
CJ
CO
CP
CS;
cx
D
JDIT
DD
DE
•. r. .. % -N
<*>!.-
DO
DT
DZ
E
EB
EL
EO
EH
8.0
, s^AV. ^w*A^ซAA^V^ซWV...VA^ V ™S+ •• ^
^<^/r> ''•'.:;*-#
8.0
8.0
-s ^ — ,'•."'*;' •** A<"rt '*y?" -.A -.
.-.\^H:.-^
7.0
7.0
2.0
6.0
A '*" ^T^T^Sl'"^! ' ' **pW*A;ftw "• '
\;^LO^;^
2.0
^8.0__
?-*y"'V'i ' %?'ir; J '•'.
7.0
8.0
VJV >A •. ^•A • •• • .ฐ -
6.0
9.0
10.0
8.0
7.0
7.0
VAV.V tH •• j -A "AKkV ซ™ S ^ ^ , _,
''•V;^V", ?;;"!' "v{
- ,'„„' ,, i, ' ,,'ii, ,"<'- •
4.0
8.0
8.0
7.0
7.0
^5X>
',:-:^:''~s'-'?r;
9.0
V*A_,A vAW^ ^•.^V-AV
•\v',/""/"
8.0
8.0

^ , v:, ,---,
i* & ' ••
-is...
" ^ ^*C. s ""
9.0
7.0
vv^ ซ' w f f. *• f
-- CV "S* •.- ^
|,,t-*f|.->,!V<
6.0
9.0
2.0
8.0
IISsS
4.0
7.0
"".T^rr* - •~T"
a.>lS?>
7.0
8.0
^^S*^'."
>>,'^,^,>"'
6.0
8.0
11.0
8.0
6.0
7.0
*ซ". *" % A,V '•• ". •>
„ ,5^/Mซ*-
^^^v:-^
12.0
8.0
7.0
7.0
7.0
6.0
A'''•',/ 5 C;lV
9.0
9.0
•g"^"**^ — w**" s "
Q% •• ^ fj
^"V, ^ ^ •••'Y'*'
,_jy^
x"v !'i * '^ "
7.0
9.0
4.0
8.0
S^iป^
2.0
8.0
"p-^r/'V,-
~1>'!~^V.^ >'---,
~7.0
8.0
.^y. v. ^•^,ipf^>
*>-*ป>„:,
7.0
8.0
11.0
8.0
6.0
7.0
--^-. v --ป ,™;^rr,™>^v:;{;-
-;'xV^ \ ;- >A% --' -v }\%V:'-' "
& %\ %o *•;- \, \ ' ' . .*• '*;"•. 1'
%% ^>s y1 '
-^%>ซ;, sVf ,
' J Stf V >
ป'• -S-. •;..- X
• s No data submitted
0 B
Insufficient data
X =
Exper.
Sigma
0.58
0.58
0.00
™,s%^ ^Ti™
A "^y^' < ^ C.i"*'* ^" v *: "
0.58
0.58
_o.oo 	
>TH1^>r^
^'^ * S" ^ •"'*'''
- fe^-;>'
4.16
0.00
0.58
0.58
0.00
0.58
\, C ", ^i* * V/
V *•;*•/,.'' fs-5&''\'
1.00
^\AVAV. A ^ S-.',\ f-' ' ' _,
' VJ*
1.00
1.00

•Ax. ^ %"% '
'<" t\ s'~\,',1
"0.58
•x\t <-TTJ ~,y,:"
<.* , ^^?^x
,!>, - .- ' >-- , '
0.58
0.58
^^ ' J'>™< i. "i
•\t:>--^v-":'-/
V% T ^ S 1 ^
0.58
1.15
1.15
1.15
•> • •<•*?•ซ"••. '< < W* ^
-^0*63H
1.15
0.58
-'-;-V; ;''V "
0.00
0.00
SA A ^ ซ$-J'^ - ^ ^
"• $•> •."• 1 '>*.•* -
0.58
0.58
0.58
0.00
0.58
_opo
/ ^~ "• ••J^, ••,••'• ^ _, ( i
, ;'-;'- '"-
Rnganal
20-Oct-1998

Normalized deviation
(R + SR) Average
0.118
0.118
0.000
", ~->;*v,rr jx,"?ซtv",v^
~x,Ai*'!~' ',:*/; : ,,,->^'^5
0.118
0.118
jxqoo 	
* v*^ \**V . " t'^k ^*^?'\^C> "* ^^
' ^ /vxV'V s - '%<1 vS
'" N \%I!. i,,^> --.^W^
7.33
6.67
8.00
•"•tTr: '.
* ' C1"-/:
7.67
7.33
8.00
r^tx!^5>'
-*'ป'/ >,,-
* ' ^ A--
"^ s *",>*>*. <••> ^ %/ V . / %v"% ^
''^v;< -J^:-'V"=K-;
0.945
0.000
0.118
0.118
0.000
0.118
' , ' ~ ' , ty/'*- ,~ "'/• -
. -'iy-if, *'•* "''^S't *s ;
0.236
1 v ^tfVf -VV. SAJA^VASA^ A^ ^ "S"?
;4Vs" ' /-v'']v; ^>v
0.236
0.236

'•>•"' V * "V**'
0.118
^!^?S?^
0.118
0.118
*Vซ% •*% ,' " "^^ '>'!ซ. "•
-'-#'x:C>:( ''•" :"•'ซ*<
o!l!8
0.236
0.236
0.236
^4p^r^t
0.236
0.118
7.33
8.00
7.33
7.33
7.00
5.33
(grand-avg) (known) Tag
0.03
-0.20
0.26
•^/^;>^v*-~^r?';"v ~
X ''"t.'xS'^t'Ifs- , ' '' '/>&
0.15
0.03
0.26
^ฅ^^^:sV7r"T

-", ? "^^A;ซ"- "I","
'w.=l{i;^^,vf-
9.00
/• " ' ••'

8.00
8.00
^"vvvv>v-^

7.33
0.61
J^f A S -.•,ซ_, ,v*y, J"^V. ,AS -.AV%V ^w
, ""•.-• v;^ v ";-;'--_ •
0.03
-0.23
-0.46
0.00
- -5 -;-,-^rx;\'\i ",-.-->
!;sx ~ , ";;'i!V"~xl* ' ' •ป,'
-0.12
-0.23
jxoo_ 	
^ic^ife*r"
0 1 ^< f •. ., * ,
v^'V".
-0.23
0.00
-0.23
-0.23
-0.35
-0.92
;:v^r'A> -:
0.35
rtfii t*v. ftf t > •. f
~: - " ',"• '*'-',
0.00
0.00

."' :."- 'x- * .
-0.23
- Y^r^^;<^T";p;;-<;f^^, ^
8^67
7.33
fv.-SSf -C-.-.
w>.*S ' - *
.? ' '' **
6.67
8.33
2.67
7.33
0.49
0.03
f "-\ ' s^',% \ s ^^ N v - \ , ^ ^ *• % W"
^s^gs^*"':^1'
-0.20
0.38
-1.59
0.03
*^?;;— ฃ ฃ-r~oT
&Af •.*•• *- V T.AW^Y, ^ ^ y^
-'-, - XvVit'\ !
0.118
0.118
0.118
0.000
0.118
0.000
y v™ ^^ ,, „ „ ^ ^
7.00
8.00
^•.AV ^;>. s^
•*ป\
6.33
8.33
10.67
8.00
6.33
7.00
t?""",
:
:ซ, }>* *-

TAG SYMBOLS
Determined
to be an outlier

-1.59
0.15
5f g^;:' *i **f-v.<. tt^ffff n /•. ' f.
:*v.v::V '-ป<:;>
-0.46
0.12
-1.85
-0.23
r^2*vฃk> ;?
-1.85
-0.12
j. tf. r ^f „ -, f ft
- ." " , •
-0.35
0.00
AA SV f •, f •, , -.
,;---• ,
-0.58
0.12
0.92
0.00
-0.58
-0.35
' ' '/„' -* '
' ''''•"- ' % •
\"> ' r •• '
control limit
control limit

-------
                 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                     18/43
Strontium-90

Lab    Res. 1    Res. 2     Res. 3
      Exper.   Rng anal            Normalized deviation
      Sigma   (R + SR)   Average   (grand-avg) (known) Tag
HK       7.0       7.0       7.0       0.00      0.000        7.00     -0.08     -0.35

HP       9.0       7.0       7.0       1.15      0.236        7.67      0.15     -0.12
I         8.0       7.0       7.0       0.58      0.118        7.33      0.03     -0.23
                                                            5.00      -0.78     -1
 • = No data submitted
 0 ^ Insufficient data
       TAG SYMBOLS
x = Determined to be an outlier
It = Above control limit
•II = Below control limit

-------
19/43
                 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
Strontium-90
                                    Exper.   Rng anal            Normalized deviation
Lab    Res. 1     Res. 2    Res. 3     Sigma   (R +  SR)  Average   (grand-avg)  (known) Tag
 • = No data submitted
 0 = Insufficient data
                                    TAG SYMBOLS
                             x = Determined to be an outlier
It s Above control limit
$ s Below control limit

-------
                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                                      20/43
Strontium-90

Lab    Res. 1    Res. 2    Res. 3
                                      Exper.   Rng anal             Normalized deviation
                                      Sigma   (R + SR)    Average   (grand-avg)  (known) Tag
TD
          6.0
           Sm-vtv&rx
                      6.0
                                -0.43
                                                   -0.69
           7.0        7.0       7.0      0.00      0.000         7.00      -0.08     -0.35
          S*^^-*^^ *"*^<^Ci^^          Vjg-^UH- ^^w^v^ ^^^W^^s^g^^ \ uyA^VAyMtAMM^ V ; s'w  v-
jj*OJtik>.'?\v:'^.jjsi Aji % ^v1-^, '•-• ^-^x  ^ *•   *• * A^V^, ^ *
ffi^5|tl4ig|Sl
^B?.rAsM?fe^
 0.58      0.118
 •> ^X^" '  ^ ^^X--^ "•• l ,  ^
-? >^;- -;>" s
 0>58      0;118
                                                               8.33
                                                                         0.38
                                                                         ^ V VMV •^•V;
                                                                         --:^
                                                                         0;03
                                                                                   0.12
                                                                                  OV1^ ";X:-
                                                                                  ^^ -.•-
                                                                                   .0;23
^xfef**
                              f>:-ปx;- -ซs\ -  - ; --\S.-K  •>*<•. <  -^vv-Vv •  -   •f>\ ,i ,\ฃ*vss? s;-- :*&m*ie.
                              r ?^ v-c^.~-^^ l5-^'- /'^^V\ ''- "^"'^ s/f'^^^;^s^x^"^ \ -,-: ป;d\>%>

       .^^^^	 ..-..,^.v	  v  	'     ฐ;.?.36"'	Z,".^,!  ,., Z-,-I	


XL        7.0        7.0        7.0      0.00      0.000        7.00      -0.08      -0.35
XM        7.0        6.0        7.0      0.58      0.118        6.67      -0.20      -0.46
                                                                                          \ - ^s "v
                                                                                           " • V^''
                                                                                          -:.^
          11.0
10.0
9.0
 1.00
                                                   0.236
                                                             10.00
                                                                         0.95
0.69
 Average
               Tag
                              Data sorted by Laboratory Average
                           Lab  \ Average	Tag	Lab  \ Average
                                       Tag
                                                          Lab
    2.67
    2.67
                          GQ
                          CX
                                     2.67
                                     4.33
                   CO
                   XK
                                     5.00
                                     5.33
                                                                      LF
                                                                      SM
 • = No data submitted
 0 = Insufficient data
                                       TAG SYMBOLS
                                x = Determined to be an outlier
                                                                         ft s Above control limit
                                                                         $ = Below control limit

-------
21/43 ESD-LV Performance Evaluation:
Strontium-90

Blind-B, 20-Oct-1998

	 ^>

Data sorted by Laboratory Average
Average Tag
5.33
5.67
6.00
6.33
6.33
6.33
6.33
6.33
6.67
6.67
6.67
7.00
7.00
7.00
7.00
7.00
7.00
7.00
7.00
7.00
% responding labs

/u* -----------




-6 -4

• & No data submitted
0 & Insufficient data
Lab
BC
QU
TD
T
QW
NJ
EB
DO
XM
CE
AE
XL
U
TQ
. S
QM
L
HK
EL
DD
Average Tag
7.00
7.33
7.33
7.33
7.33
7.33
7.33
7.33
7.33
7.33
7.33
7.33
7.33
7.33
7.67
7.67
7.67
8.00
8.00
8.00
Lab
BB
X
W
JS
I
FE
CP
CA
BO
BA
AZ
AU
AK
A
HP
D
AJ
K
E
DE
Average Tag
8.00
8.00
8.00
8.00
8.00
8.33
8.33
8.33
8.67
8.67
8.67
8.67
9.00
9.33
9.33
10.00
10.67
12.00
20.33 x
21.33 x
Lab
BM
BL
AW
AL
AF
WR
DT
CJ
SS
SD
JE
C
BH
VH
Q
Y
DZ
XI
UP
cs
Frequency distribution
•
H
III
lllll '
1 .l-llllll.

-2 0
Normalized deviation of the mean




- . . .

+2 +4
from the known value
TAG SYMBOLS tl & Above control
x s Determined to be an outlier JJ- & Below control






+6

limit
limit

-------
                 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                               22/43
Strontium-90
 % responding labs
 30
 20
 10
Frequency distribution





	 	 	 fc 	 Ji
1 ..ill
-'6 ' -4 ' -2 T



• 	
L. 	 	 	 	 	 	
ll 	
H.I-. .
T ;2 ' v4 • &
                    Normalized deviation of the mean from the grand average

-------
                  ESD-LV Performance Evaluation: Blind-B,  20-Oet-1998
                                  23/43
Cobalt-60                            Statistical Summary                      175 Participants
The known value of this nuclide is 21.0 pCi/1 with an expected precision of 5.0; the control limits
are 12.3 to 29.7; the warning regions are 12.3 to 15.2 and 26.8 to 29.7
71 (4O.6 %) Failed to respond ;
3(1.7%) Outliers -•'
         Statistic
                • 99(56.6 %) Within all limits
Respondents
2(1.1 %) In warning zone
       but within control


          Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
     21.93
      3.59
     12.92
     16.39
      4.43
      0.26
     21.67
      3.17
      0.19
Grand Avg 21.77
             2.03
             4.13
             9.33
             3.68
             0.38
            21.67
             3.17
             0.33
3(2.9 %) More than 3 norm. S.D. ป.^
2(1.9 %) Between 2 and 3 norm. S.D
            .85(81.7 %) Within 1 norm. S.D.
                           of known value
     14(13.5 %) Between 1 and 2 norm. S.D.

-------
24/43
ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998

Cobalt-60

Lab
A
AE
AF
AH
AJ
AL
iฎH
• ARf.-Si
AU
AW
AZ
BA
BB
BC
,-yf -,} vw-. w w (,
, BG A - ;,
BH
BK
BL
BM
BN
BO
AJBง '"%;<
C
CA
>CCฃf'."
CE "
C J,
^66^}^"
CP
cs
ex
D
*ฃ|i|l\r,iT,
v'jM-** -:ฐ •' '
DD
DE
m;-:/
DO
-PT_, ,
s!DZ7~ ,"
E
EB
EL
••"•\ ,*• "*• ,.••/
ฐKffc % " '


C W"O NvX*
% XStfXvs ^'
• = No

Res. 1
22.0
23.0
21.0
20.0
24.0
rirrtfiv^.
ปJป'V$ปJป,Y~& S> "^

"'" o\ * '' '"' v"
f ,' •• - ฃ .. , '* V

Res. 2
21.0
22.0
20.0
20.0
.,., 24.0^^
24.0
$f|5^
*';v"'r'l .'JB?^-1-.
22.0
19.0
16.0
23.0
20.0
21.0
v r^'C'1 " TI^V^^, t
vv, ^' ,\, x%'.
24.0
23.0
21.0
21.0
20.0
21.0
7t<'_y,'->ij?"^f
""""27!o^
21.0
""•''•''-l^!
22.0
21.0
"v'..,"'r4io''v-
21.0
22.0
24.0
22.0
Vx"~ ™'v/r ."'^5
,; -.;^J'^- '
21.0
23.0_
X}J"v^'1 ^"^p'x
21.0
™_,2,2JL,,
\ / ';'-:v.-- -
21.0
24.0
22.0
% ^^v fff^w. tt$t.JW* f '
•• '^" " \"V ^ '>*%*„

^s^^^ ' s ^'^-''A''''
- XV? "'& C* ^'^ X<>^
<•* ^ /'' N"^ % j.

Res. 3
22.0
25.0
21.0
17.0
23.0
$%$ง&$*.*
„ ,25.0^
^^/3^
";%f~\^U'?%;> .
21.0
20.0
18.0
23.0
22.0
21.0
"*r%*fv*{<'t*:^2>5.'*, s
^r*N % '--'v
22.0
23.0
21.0
22.0
21.0
24.0
'pT^p'^r^
23.0
22.0
•^STl'
20.0
23.0
'^"P/^iOf"'
23.0
21.0
24.0
21.0
^T""^"^- "'^
jt' "" * * *
20.0
24.0
%**V'?"/*"* WW^ *
22.0
_24.0_
i \:', -'*/*' ',iV
22.0
25.0
21.0
•, &-,r • w^v w' \t ".
* A " ''J*'% ^ -^' %


^^S ~,,*S"^-.ฃf ••
^'•. < tVfJ\ A " .
data submitted
0 s Insufficient
data
X =
Exper.
Sigma
0.58
1.53
0.58
1.73
0.58
0.58
r3^3^
riy^'i *Vi'~!v ' v^j
0.58
0.58
2.00
2.31
1.15
0.00
""^'^S't **?'"*' '" J-< '^
- " " ^ •*-$.,* *
1.53
0.00
1.15
1.00
0.58
1.73
7^*-''r^™'
2.00
1.53
n^T*x^
1.00
1.15
.-\4?ifiK'
2^00
0.58
2.31
0.58
}','- , '/^A^t;"
. - ,, , • ซ ป, s, 1 s _
1.53
0.58
— v'S^-'
0.58
_1.53__
'-, s>-l,/A%'.^
1.00
0.58
1.00
\ •. t. f^fff f ^ •. -• f.
t. ' " \' >>'\ ^


cr^y^v* ;^'^' '
s ' f<^"* V
Rnganal
(R + SR)
0.118
0.354
0.118
0.354
0.118
. 'H1,8-™.
1 \* l^ % V ^ *
-' •.^S^!^^j.%^'>%'>' s
K'^t-l^l^C^'V/'V
0.118
0.118
0.473
0.473
0.236
0.000
' -' s1""^^ •&&•*??'&?"
, V? v^t \""4,'\
0.354
0.000
0.236
0.236
0.118
0.354
'-'•~:: '., •'" ','ซ
0.473
0.354
\';-/X-'J.- -
0.236
0.236
' rtAO"OC'' ••
^' wป*fOw ^
0^473
0.118
0.473
0.118
,%^j^j.~ซy^, V,
~~ *
0.354
0.118
-'Mi^/v^t^--
6.118
^0.354_
*''3\ --;^',7, , '
0.236
0.118
0.236
' ^' V^*%#*"V A ' s
v ,' v *S ^^ ^' ,^%t^ '


",^/^ "A' ^ X**O '*
A' , ' ' •• ''
Normalized deviation
Average
21.67
23.33
20.67
19.00
23.67
24.67
Sffil
''> ^^ !.Vf-."
21.67
19.33
18.00
21.67
21.33
21.00
",""" J-' V"^'
" \ '- " -^
22.33
23.00
21.67
22.00
20.67
22.00
/f^'j^tT'" "^ "
25.00
20.67
- ^'X V ';
21.00
22.33
-><5;33:
23.00
21.33
22.67
21.33
' "5 '%**"*' &*v <% *^*
' '^7 v ""
19.67
23.33
,'. -fT\x % ' %
21.33
J52.33
:,- k'" : S-".>
22.00
24.33
21.00
f f. f*.t-. ^ '\-f
''", ' ; "~fปf " 0*%


** '"'"'"' **''
_ •.-.•• jf f
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
-0.04
0.54
-0.38
-0.96
,,v._.0.66>% w"T\\ " ," *^?jf™ ~^y,'~
1.12
-0.38
vv v--' -'"T :*;v^-
-0.27
0.19
* t ft i%Q v* "">
•Jj^>v-./V<-."5/*O*7 ^ 's s''
0.43
-0.15
0.31
-0.15
' '„ v*' "^ V"'"11 ' s S -' " ^
- '' y^^ ^" ' i^'
-0.73
0.54
_ ^;-TV""'v"J-
-0.15
	 	 0.19 	
V,;, -'"'ts; 4 -:, -"--"-
0.08
0.89
-0.27
*V "V'tfy '•Jip$**& VS* ' ' ' r
~^\ ' f"f , X^v"11 * -'' !


- ' * ^w^^ *^" •* v *% ^ /
'•.'-"• i* ซ A> V - •> j ^ ^ "
tf e Above
•11 s Below
0.23
0.81
-0.12
-0.69
0.92
1.27
,„ ^v™.^^™-,,, ,,
i;-;t^^;>
.^'V^' - - * • ' -
0.23
-0.58
-1.04
0.23
0.12
0.00
11 *" "'•!"* wv^ ^ ' " '" "
'* \'/ <- '"*Vป *r
0.46
0.69
0.23
0.35
-0.12
0.35
J;,,.."TF""-^'V
1.39
-0.12
--•.f ^ v* >•."'• ^
0.00
0.46
;--5-4^'-Hi,-'
0.69
0.12
0.58
0.12
,,„, ,,, ป,^,t,™ , ,
s , ,v- -.^ , , „
-0.46
0.81
" r" '"'. -
0.12
0.46
''t --•'•' • •'
0.35
1.15
0.00
''/', ^.--'- "" '
' " " '^, •.'""•


*A% ^ s ป ,\
s '' ." . .'T'.A "' ••
control limit
control limit

-------
                    ESD-LV Performance Evaluation: Blind-B,  20-Oct-1998
                                                                                           25/43
 Cobalt-60
                                          Exper.    Rng anal              Normalized deviation
 Lab     Res. 1     Res. 2     Res. 3     Sigma   (R + SR)    Average  (grand-avg)  (known) Tag
                                                    0.236
                                                    0.354
                                                                  21.00
                                                                  20.00
                                                                  22.00
                                                                  22.67
                      22.0
                      23.0
                      23.0
                      21.0
                      22.0
                                           0.00
                                           0.58
                                           1.00
                                           0.00
                                           0.58
MP
                      23.0       24.0       1.00      0.236       23.00      0.43
                      20^ฐ ^  . 20XL_ .Jk7?~    MS*?1;9CLป.    '?-?-7       9-99,,

           23.0       20.0       25.6       2?52      0.591       22*67"~"*"a31       0.58
                        1trซซ^4nwiK*tr?S!s^^
                        ^;f^%^ฅ^H^                                               -x ' ^-Vป,~n\" -;!;>\> •• ,o-'*V><^-.HVo, v-ys, ^:ฐ  V-*-v>- • >*ซ ---\v^ _; *  ,* -  ,
           20.         18.0        19.0       1.00      0^236        19.00      -0.96      -0.69
,-U-.> i^^;^V^'tฎ-^^r-TNIซ;;5'*'Sl!ปvr^SซSv1!f'*"-\- SI -™ซv ป-5SS ป*>ป•ซ•ซ*?•ป.•<•"!. ;•ซ?'ซ!••?>• O- "™5f<.ซWiซSVป,'ซป™
*vTwV'->^V ^^v^i^i-V^C^-^'V "• •?*V>',\^*is"\S'-. ^  • ,- ^UV-' ,•*- %- ^\'- "-*>< ซCv- '^xv;i
C^^^t.*^^^^  A'fe^^^               ^*S^Q!*lf
^'IH^ S vc5!^"-^' 5-j> -1'- V ^-,*4sfe-^\ *^^\ -i>^-T\c!!s:^!'^ - -• \Ws*4ซ^-ซ-v' >>> ,^M-" >™xx- s" ~-ฐ '&&$ -' ' '-Hv-"-!^-^^
lM^^^^^^t;^^:^;t^*^^'?Mx -  ^^:^:i,^^>^S >';:>:^^A^^^fs^
^IHA<ซ^^;M^% i v^%^^* ? *>pf;-?ซ $,*-\*t x ~^ *,; v >^v,v, ^V- *> -:  ; ;^-v'vvT'>f?--J\t; ,v?lt>c ^
 NH      20.0       20.6       21.0        0.58      0.118        20.33      -0.
  •  ^ No data submitted
 0 = Insufficient data
                                         TAG SYMBOLS
                                  x = Determined to be an outlier
ft = Above control limit
$ = Below control limit

-------
26/43
ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
Cobalt-60
Lab
O
OB
rrisn
-'UJjV;-
* ~^ ,,.
OM
!-"-!;' ^Z.
Res. 1
23.0
22.0
Res. 2
23^0
22.0
Res. 3
23.0
22.0
Exper.
Sigma
0.00
0.00
Rnganal
(R + SR)
0.000
0.000

Normalized deviation
Average
23.00
22.00
A^.s ASW^,^™ss>^A.S^ ., A, -. S S.-A ss VASJA.ASJ.VVA^ ss ^ ^Ay^ASSS^ ,^ ^s A- AS , SAy^ W . " CT^I^^^t'?5
A- * ' ^ .. % %\v^ ttf f f <. ^' 'J

2LO
.WAVAWA fff^.ffif^,v. >'Z%fy?AV' fY?"
(\fi & >,'" -v "'-ซv-^',*"; '
V^^yt^^X/
oy
p
'•PB'V
;JซD;ซ
•:pa;
PM
' tt* j,A'>-.'- ^. _,_>>A <., '
v' s^ s ^ O %
22.0
wซmi*^9ft'"*CTA
' ;^'^w^ \vv w
&*&*
' -. V
V t 'c^y- $f*'f-\- "-''X-',// "*' - ; \V
3o!o
:>V^0.^*::?f
•r-"" *$ 1 1* *&* * *<'t
':-r^;?-^:;
-;' ' .';-^ป, ซ?^".tr.
22.0
•:^7^'.Tfe/^ ,'.'
Q
QM
QP
QQ
QT
QU
QW
OX
9Z,

RD
> RI ; *
RK
TrT^"- ^
'ii U. 'ii J- Y"s
Jtv^J'
RZ
S
SD
SF
TgJQT
SI
f tf -J% f-^
SL
SM
SN
SO;;
21.0
25.0
20.0
S ' SA- SAS\SS*AVA> / ^^>vss-*.
-x*'->!, ,/_-<.„ ;', -, _• ' ",
20.0
21.0
23.0
14.0
26.0
'?-^^\~,^
29.0
*"?X^;.^.
23.0
V.6
21.0
21.0
21.0
"" ^'^^"^.^r^vr^;*
22.0
^^ ^ -v. ;. j^Vs A s s^x' -^ 'i's^
1;";"j:\"'- --'- \ '"•"''
24.0
22.0
' "X'.' ,S'I' — ;i-'1-
25.0
-/ '- -::^-"
;/' :;.,.•**<,'
v ', f*f ;';:
:*a$.{,'
19.0
20.0
21.0
16.0
21.0
:";-\S^
^29.0
- '..^ x
' >^ ^vS" O-/-;
X;.^ v^,/
2.89
si'^t'."-''^*':*'^ •
" - .-!'*/ ,"
--^w:f
''^t,\<'i'<^^
33.0
—- -*??>.•<"••ป
22.0
24.0
23.0
J~:ป, '< .'• v',',.
19.0
20.0
19.0
16.0
23.0
:' '"<\i^"-
29.0
"'li^'M
23.0
17.0
21.0
21.0
21.0
r^: ^p^r^jp;
25.0
w tปs *•>•> 'W/% ^,
/ ^ iV,*^ ,/i
^'s > \t<. /-*V
26.0
20.0
U ',';'? "^
^$B&}?,
' •• :~r ' - '^v - --
6.08
wr"/% * ^v;,^^ ^s •*•
0.58
1.53
J.53
r,N- - <^ฃ •>•.•**"•'
0.58
0.58
2.00
1.15
2.52
-^"^r,;;,.
0.00
; ,"- - ^' ''
0.00
0.58
0.58
0.00
1.15
<^C^"^'~-^^''V'-"'f
1 , ,2.08 \

'*Cf -. '< ^''S-#>% "• % A A'-v\
,5;,',\>v-;^v;>^ / v-,*'
2.52
1.53
v^i:^^/ "^'4
\ •. \ ^ fV y' ' '
^ 4--.A '*' ' %'
0.236
, cr; — y"tKv-^
' A &• ^'i •> f "~ *
* S
22.00
, tf. ^ ASS wv A SA ^ S
(grand-avg) (known) Tag
0.43
0.08
"( ,< A ^T t"^ "^ ' ?' " w'- VsT
S ' /*'•'' \ ' ^ S s
S S S V
0.08
V S/ v S ^.f A^SS ^
i^'>""""";-^ 'ป /"-*v ;\n->\.^r *-.v
t"'1' •'"•",' '. >>"' -'.*;"^,^. >^V^ ':>„
JD.591
^\,r !^', '•'
-:^wX
^ 0;.*o ^ " ซ '''
1.570
*'';t^\^V/* *'*''*"
26.67
ws yw'Vi.'^^^'' V •• ^
,I?i4^67 >^
" C ซ-'^ "iv

26.00
' •> ~V;-' " **C .
1.70
S ^' S< s
- * •• ' - "A ' % •> ^ •• ,
'; " \; '"' *
:^28;v;;
, ^ ^ *s s s ; x v
A?^^J*^VX^' + '"f
L46
' - r,, ''''^ ".'. % ?*' ' ''-"<
0.000
0.118
0.118
0.000
0.236
'^"^^!-
0.473
', / '••' 'S'~
s^-ซi' , '--'V
0.591
0.354
*','^ '* ,'-''" '•'*''"•
21.33
23.67
_21.33
-;- H%,\;^"''
19.33
20.33
21.00
15.33
23.33
^••Ii?:"';'
"29.00
'"•,%f:$>"-
23.00
16.67
21.33
21.00
21.67
f'^W^j ' ~*'l
22.67
<. f t -.-.f. .. ^ ._ h _> 1 .-A
/.'^^VV.xV'i,'
23.67
20.33
, v'v^y ;/=-•
-0.15
0.66
_ _:0.15 	
;>xH-x,A; " . ' ,"
-0.84
-0.50
-0.27
-2.23
..ซJ2:51,,,_
; / " /' •. ••••
2.50
w"'"'* ;; * - -v '
,.ฐ:43
-1.77
-0.15
-0.27
-0.04
?X^^-^/^"''V
0.31
sss.sss^s. ^ Vf , m
>, ' ^ ^ *vfr < s ^ "i, V
^ C , s\ / V; ,s- "•, ^, ^
0.66
-0.50
',"/,"'ซ ซ'^.!' ,' X'/ •>-"'"
0.69
0.35
* AVA , v Avyw v j.* v, ^ ^"'^
"~ *• 's "C < ' ^ >v
^ * ff f •. •. •S ' s s * '
0.35
*" \ ' *1^**1 "*wv> s % ^',
* v ^>s '^ซv>/;' I "; s'
-./..:-:"; .;:ป,-:-
••/^ A ; /^
1.96
••:.^^-.r-
, .'-\SY .; ; -, . ..
"18ซ64c^x->
• ,", <•>, '•-'••. - -
>^^,, ^%. ,~ .^.,
1 v-^i" -- ; x-* * , ,'.
1.73
VA^.^W. W ^SyAVA. f V, ftfftt.
Vv'*s"*.-ป-^
0.12
0.92
0.12 	 	
'-.;',<; ,;,, ,-,_' •//
-0.58
-0.23
0.00
-1.96
0.81
w~^piV\/;
2-77,
"''"' '''J's\N * '"
0^69
-1.50
0.12
0.00
0.23
>Kf 'V-'r;'--*'"^
0.58
* C\ • "•. ffft f ' '
:,v/- '"----; • ,
0.92
-0.23
f-xf-^''-: '•; *> >
SR^'k"^ '-WX-,'' - ";^"'f t1^'<7/V3^;^-t>:^ •?>-"!' W^ -";^ -. • -:••
SS
sx
T
• =
0 s
21.0
19.0
22.0
25.0
23.0
20.0
24.0
21.0
23.0
No data submitted
Insufficient data
V r=:
2.08
2.00
1.53
0.473
0.473
0.354
23.33
21.00
21.67
TAG SYMBOLS
Determined
to be an outlier
0.54
-0.27
-0.04
ft = Above
0.81
0.00
0.23
control limit
•11 = Below control limit

-------
                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                             27/43
Cobalt-60
Lab
Res. 1     Res. 2
                  Exper.   Rng anal             Normalized deviation
        Res. 3    Sigma   (R + SR)   Average  (grand-avg)  (known) Tag
TD
 24.0
25.0
24.0      0.58     0.118
24.33
0.89
1.15
                                        1.15      0.236
                                        4.36      0.945
                                        4.04      0.827
                                        1.53      0.354
                                                 0.000
                                                 0.000
                                                 0.000
                                                 0.709
                                0.00
                                0.00
                                0.00
                                3.00
                                                    20.67      -0.38      -0.12
                                                    24.00      0.77       1.04
                                                    20.67      -0.38      -0.12
                                                    24.67       1.00       1.27
                                                            21.33
                                         *JL.OO      -0.15       0.12
                                      --7 trSTT-TS^^V-^^VV^^^CTT?::^- .-K:V^
                                      ii&^^Wv^^^^^
                                      :'^%K-r>^^"^--- !^%^^-^ฑ^f
                                         18.00      -1.31      -1.04
                               18.00
                               22.00
                               22.00
                               24.00
           -1.31
           0.08
           0.08
           0.77
          -1.04
          0.35
          0.35
          1.04
                                                           JL24?9 v_ S^L—  -, ^	-^
                                                           .\^**\5\  * ^ '^ปJV''V1*,J^'f">!',\V .-'v!^^"'  ! ,"C*^^-
                                                            23.00      0.43
                                                            20.67      -0.38
                                                            21.33      -0.15
                                                                          0.69
                                                                         -0.12
                                                                          0.12
                                                            22.00      0.08      0.35
                                         21.33
                                                                       -0.15
                                                                          0.12
Average
       Tag
         Data sorted by Laboratory Average
       Lab \ Average	Tag	Lab \ Average
                                                Tag
                            Lab
    5.33
   15.33
                  CO
                  QX
               15.67
               16.67
                            MV
                            RZ
      18.00
      18.00
                 WO
                 AZ
 • s No data submitted
 0 = Insufficient data
                               TAG SYMBOLS
                        x s Determined to be an outlier
                                                   ft = Above control limit
                                                   •II = Below control limit

-------
28/43 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
Cobalt-60



Data sorted by Laboratory Average
Average Tag
19.00
19.00
19.33
19.33
19.33
19.67
20.00
20.00
20.33
20.33
20.33
20.67
20.67
20.67
20.67
20.67
20.67
20.67
21.00
21.00
21.00
21.00
21.00
21.00
21.00
21.00
21.00
21.00
21.00
21.33
21.33
21.33

% responding labs
20- 	 	
ift .
IP- -----------

-6 -4
Lab
MP
AH
TQ
QT
AW
DD
LR
FE
SN
QU
NH
XF
VO
VH
JM
CA
BN
AF
UP
sx
SD
QW
NJ
L
HP
EX
EL
CE
BC
XT
XI
W

Average Tag
21.33
21.33
21.33
21.33
21.33
21.33
21.33
21.33
21.33
21.67
21.67
21.67
21.67
21.67
21.67
21.67
21.67
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.33
22.33
Frequency distribution
•
III
lllll
--_ f Mlllllll

Lab
S
QP
Q
JS
JE
DO
D
cs
BB
T
SF
M
I
BL
BA
AU
A
XK
XA
WW
WR
U
OM
OB
K
m
GQ
FJ
E
BO
BM
DT
CJ
Average Tag
22.33
22.67
22.67
22.67
22.67
22.67
23.00
23.00
23.00
23.00
23.00
23.00
23.00
23.33
23.33
23.33
23.33
23.67
23.67
23.67
24.00
24.00
24.33
24.33
24.67
24.67
25.00
26.00
26.67
27.33
29.00
30.67 x
45.67 x




_ •.ซ_ _ _
+2 +4
Lab
BH
SI
LF
HK
FL
CX
XD
RK
O
KX
HL
CP
BK
ss
QZ
DE
AE
SM
QM
AJ
X
VI
TD
EB
VT
AL
C
PM
P
JG
RD
AK
PD




ป*ซ
+6
Normalized deviation of the mean from the known value
• s No data submitted
0 s Insufficient data
TAG SYMBOLS
ft s Above control
x = Determined to be an outlier •!!• s Below control
limit
limit

-------
                 ESD-LV Performance Evaluation:  Blind-B, 20-Oct-1998
                                              29/43
Cobalt-60

 % responding labs
Frequency distribution
 20
 10
                             •  _ •  .••••••III
                                                 T—  T   • T
                  -4           -20           +2           +4
                    Normalized deviation of the mean from the grand average

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                  ESD-LV Performance Evaluation:  Blind-B, 20-Oct-1998
                                  30/43
Cesium-134                         Statistical Summary                      175 Participants
The known value of this nuclide is 6.0 pCi/I with an expected precision of 5.0; the control limits
are 0.0 to 14.7; the warning regions are 0.0 to 0.2 and 11.8 to 14.7
76(43.4 %) Failed to respond ,
1(0.6 %) Outliers
         Statistic
                • 96(54.9 %) Within all limits
Respondents
2(1.1 %) In warning zone
       but within control


          Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
      6.49
      1.84
      3.37
     28.27
      8.25
      0.27
      6.33
      5.56
      0.18
 Grand Avg 6.40
             1.57
             2.46
            24.54
             6.63
             0.25
             6.33
             5.56
             0.21
1(1.0 %) More than 3 norm. S.D. -.^
2(2.O %) Between 2 and 3 norm. S.D. '
            .91(91.9 %) Within 1 norm. S.D.
                           of known value
      * 5(5.1 %) Between 1 and 2 norm. S.D.

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31/43
                 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
Cesium-134

Lab     Res. 1
                                      Exper.    Rag anal             Normalized deviation
                 Res. 2    Res. 3     Sigma   (R  +  SR)   Average   (grand-avg)  (known) Tag
                                                              6.33
                                                              7.00
                      -0.02
                       0.21
                    0.12
                    0.35
                    -0.23
                                                 0.118
                                                 0.000
                                                 0.118
                                                 0.354
                                                 0.236
                                                 0.000
                                                 0.709
                                                 0.118
                                                 0.236
                                                 0.118
                                                              5.00
                                                              8.00
                                                             10.33
                                                              5.67
                                                              5.67
                                                              6.33
                                       1.00
                                       0.58
                                       0.00
                                       0.00
                                       0.58
                                       0.58
                                                                                  0.35
                                                                                  0.12
                                                                                  0.35
                                                                                  0.35
                                                                                  -0.12
                                                 0.118
                                                 0.000
                                                 0.118
                                                 0.118
                                                 0.118
                                                 0.236
                                                 0.000
                                                 0.118
                                                 0.000
                                                                                  0.23
                                                                                  0.23
                                                                                  -1.50
                                                                                  0.12
                                                                                  0.00
                                                                                  0.23
                                                                                  0.00
                                                 0.118
                                                 0.000
                                                 0.236
                                                 0.118
                                                                                  0.00
                                                                                  0.12
                                                                                  0.12
                                        1.00
                                        0.58
                                        0.58
0.236
0.118
0.118
6.00
6.33
6.33
-0.14
-0.02
-0.02
• = No data submitted
0 = Insufficient data
                                      TAG SYMBOLS
                               x s Determined to be an outlier
                      ft s Above control limit
                      II = Below control limit

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                  ESD-LV Performance Evaluation: Blind-B,  20-Oct-1998
                                                                               32/43
Cesium-134
Lab
Res. 1
                     Exper.    Rng anal             Normalized deviation
Res. 2     Res. 3     Sigma   (R +  SR)   Average  (grand-avg)  (known) Tag
                                                 0.118
                                                 0.118
                                                 0.236
                                                 0.118
                   0.58     0.118

                   -\ s W, <> C* /  ^ vs\w ^ •.\ "• V, •••.
                   0.00     0.000
           -^. -.SSW ^ ^\ •.ซ%•>-. v.s^ivK.VsS-\ s W, <> C* /  ^ vs\w ^ •.\ "• V, •••. \^ ^ S V   ^ X-. J " , ^ S\ -A> S--% \SS S   A>-.-.*^i-   \  )
                                                       6.33      -0.02

                                                      -. J " , ^ S\ -A> S--% \SS S   A
                                                       6.00      -0.14
                                                                                   0.12

                                                                                  %
                                                                                   0.00
                                        0.00      0.000
                                                       6.00
                                                      -0.14
                                                              0.00
                                        1.15      0.236
                                                       6.33
                                                      -0.02
                                                              0.12
                                                                                           w>
                                 0.58      0.118
                                 1.00      0.236
                                        058      0.118
                                             1
                       153      0354
                       0.00      0.000
                                                               6.33      -0.02      0.12
                                                               7.00       0.21      0.35
                                                       6.00
                                                                        .0.60      -0.46
                                                                        -0.14      0.00

MP
6.0
5.
                       0.58      0.118
                                                       533      -0.37
                                                                                   -0.23
           6.0
             6.0
             6.0
                   0.00
                                       0.000
                                                              6.33
                                                              6.00
-0.02
-0.14
0.12
0.00
 • s No data submitted
 0 = Insufficient data
                               TAG SYMBOLS
                            Determined to be an outlier
                                                      It s Above control limit
                                                      •II s Below control limit

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33/43
ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
Cesium-134
Lab
''tffc3;N3
Res. 1
Res. 2
*;-}ซ t - v * -~f- ' v? * •t-'&z, ^xiV '*&
**ฃ.*•,'*• ^t-W^m
-.i. 2^ \x ' ป ' '! *; ; ~ o;;<'-< "•
}&&&?**>'* &ฑ'fฃ
6 	
^C***^ w"**'™
^OB^i-V^
T/'MB^ i ^ ^^5
- viLMf  v -. s * ''-Vs
*lWfi^<
"^nffi-^ s? •&
- Jr^^J^&Q
, p^-
ซtp&ฃf^*
PM

ipujir "^^
JT?f
Q
QM
QP
X"ป*C--; -.-
''QQ'fV
QT
QU
QW

;qฃT..,r
QZ

^TCMPI NS* " -.
***T7 - ' ^
'^•^
•• TuHf "
< '
-:KI>J^>-
RK
,v, .- w ". •• ^, ^
>^4^V';:-;
*'*'RTl'V'\ ''<"'
^m'f^*
*™MHฃ •,
RZ
S
SD
SF
•Tjfl^'fi?!"™
_si_ .„„
SM
SN
' P**LT • ^-^ •>, ^
' dT3"!-; % ' s>
% OJCw % "!%'' " %
ss
sx
T
• s No
6.0

4-^vvt^f o( '
iV>'^ '.. *>\ *'" '
"* ' ""-^>" '
w.6*0_
*m7:'v7;I
s ••^i.vj. -",?;- ;;,'
4.0

\V "*"__'* "*" ^ y V*

7.0
4.0
5.0
w. X A.W ^v.^, •.
^ % % ' ' v
6.0
6.0
6.0


7.0

" %* ' V''' S
S J" •- ' ' S s '
;>?'*&:
'r >.•. , f^ '
\-\f~ ฃf'ff' ' ^ VJ'
.V'* "-'?:
6.0
s v;j ^v>fv^/
>,;/-T ' .*"•;''??'
\^-x ^' ;^
,^"'fx-"-.
\? ;* ' ' „'
6.0
5.0
6.0
6.0
T^™ ""Cf v^
6.0
7.0
6.0
9.0
6.0
6.0
Res. 3
•yaSt* -">"f
Ax^<-.- >
"is X\' . ">
:?%•>* <ป>^%^%^V4^ 1^>-
6.0
^ V ™% ^ V^S W ^ \
H-;>;-> > lij-ili;^,'
v ox ' \{- ^••^TT^f^ff ฃ~pr,-;
^ 'v't ^ -rX, ^%*' L"k \^ "^vc
^ *< ^ t ' V\ ('•/ • j V OV^V C'
, o\ -'-"- " • -", '
v ^^rv ,-;M^->-;J\!, '•$. --x.'
, <• >'?, .- !-'/ ="" TV- ix
'V. s'>* '*""'>' " ">'' '. "^-" - \ป" ' -•'•" '^''-. --">"'
„-_ , >; /A •C?}C-,;
;vx->v? t*i\; -i ,-,- i-

'- !<",-" , ' -f '-•;, ,' ', f'"
v"-;,:;:-1 t .-A/, - " ^^ ^:'A
0.000
• ***••. ^ v.%
' y*''* /
v^V / '/. .>
— >. i - <^
0.118
^;T-ia;
-\ yc;.\ ;:
v i'v \ t sV:' "
'^' 13.0 	
•>?:'> 3 xy^jZ-f
8.0

' ' ^ / ' '
* V ^ '
6.0
5.0
5.0
ซ - s " ^, -.'^ - ^- v ,
*wx s / ^,, 's^"-^:
5.0
7.0
6.0

, '' ' :^ " ' \- ,
7.0

"",<

-Vc/'/^V^-/;-^
' ' ' ' ซ " '"* "
;\*%i * ^.^-^^ ^ ^/ •*
„ •; ' T,*\JV;'
6.0
* •• ' ^ s V
">,}--''-•/ '< 1"

; , -x . '>
v ,'• --;' 'ป -• '•

^6.0 	
5.0
6.0
6.0
"-":rTr'!y'3'tf"Xs"v"^-
.,_\7.0_J
7.0
6.0
8.0
7.0
6.0
13^p
v~i - ">'••
7.0

, ^" •> fx'\^
' ' \-.%A ' 4
6.0
4.0
5.0
' %' '
•
6.0
6.0
5.0

. >\
,*<ฃ< >"'
*.(( ;'•<•
' ' " j *
"<-1 %z
1" p.oo
!i/ซปrr; ''!/*"''''-,
2.08
* % " 'v> a^i v^
* '*'•• ft
' i % ^
0.58
0.58
0.00
^ v f, v. ^ /^ -A..-
"- '% , % ''i. s ' '
0.58
0.58
0.58

,* '^<%'^
1.73

*' '••' \o^ * *' - "•<• ,/
* ,*i " '* *' * *
' ' - - ;,V
-; ,;, V v>'-x^
' ' "• f"1 *•• t '_. '-,'•,• *
/ ^ ^v'%%
'*^A ^>-^/,t '\-'
6.00
' ' , 'vs, j >• * '
-^^r V^"^^^Vs
" "/--, v
p!poo
;;-v" '. ?/-\
6.473


". ' ..?, "
0.118
0.118
0.000
' ••' *• "*• >*"\ *
' , h -'"'''
0.118
0.118
0.118

-. -'' ' '""
0.354

"- <% '

, ,:^>;
' v ^

' v-' ^ s
,;<;;, , ;?.ft- \
0.000
% o *% s
1 '.'.!' / ' -'.'
'--' '- "i;V,-
- ซ , ' '-•>*'•
\0 '"^ ^ ,<;/,'-*; " ^ >* ^* ;
"",.,'-* -:;-"• -xv • -* ',-,"':-" -'/'--^-.'v
7.0
5.0
5.0
6.0
>-s~sy"V~jj~-
7.0
5.0
6.0
7.0
7.0
6.0
data submitted
0 s Insufficient
data
0.58
0.00
0.58
0.00
"'"vt"""™^'^" - ""'"T
t 	 0.58 _
1.15
0.00
1.00
0.58
0.00
0.118
0.000
0.118
0.000
,^1^5^5-r-c;^
0.118
0.236
0.000
0.236
0.118
0.000
6.00
s s- ^ • _ -v'l v ••;•
'-" ;X -\r -•; V;?',
> ^ - j '^ V v*
-/-"-*? " '',j, "'"/'A:"
5.33
T'7 r"'; 7/^-v"^T:~.
rVt '^ '*<•
;SV;H tSv -c^-,

i%'-y?:?"'T/\*
13.00
, "<;V % - ' •'
6.33

, -.< j ' ^ ^
- J "" ^. ' ' -. \ * s •.' \
6.33
4.33
5.00
*** * ' *' •".'*' •.-.*ซ
A w ;;' ^ v
5.67
6.33
5.67
; y~ff , ., "" ,\%^ A:;-;,
j,_ / sซ, 'f. •• ' ••_,•. %
'''""tf;" '-/ ' -"•'••;

F-:^ ^v^;.- '.\'V.
6.00
•• '/ C •• '5 ^ , ^ ••• ' i"
', v „ --•-„/.,' >,:* 5*
>--• \ ,"."-- '- -, . •-*
"• ••{•* *' * *% %
'-; .. -: ', s'*1-- ^
' "" \--t', •-nV/"
:: -: ,;.\* - ?;r
6.33
5.00
5.67
6.00
4"™,'-"''-^:"' """5>; ;, -;„-;","
^ 	 6.67
6.33
,,_6.(X) ^
8.00
6.67
6.00
TAG SYMBOLS
x. = Determined
to be an
outlier
(grand-avg) (known) Tag
$?%$ #>'••>ฃ ,, -;,<•.?< x->
""^-, ' -•;--''? ,.,
-,; „,,: -";,',.,/•-•*•
"-0.14
__ S S f.' 'V •. -.V ^ ฃV.
" •\ir ,-^u'; ;;V^|
'"' *'> 's ฐ' \*^ 'C \ '"ji%
- ' /™S "s . ' ; '
-6.37
^-H---
c:<7":v\-:;
' ^'% ^ X^o "•• , "•
""• ,"•<' • s^> "• \ "
"^\i V v ^A
* ^ ^ "V:. ," •.' ^s ^ 2
2.29
^*:tJ;rX'*/ ,'3%
-0.02

* ^ "" '^ -• ^ s ^'^
% s * C ซ "" ' ' "- N . '
-0.02
-0.72
-0.48
W St *S^W •.*{•** f^ffWf f
<•-?'' - ^ *\
-0.25
-0.02
-0.25
f 
-0.14

* , ' ' "• ^ s •• '
"" * s
%!4^S?ป%
''v*i% s " *- * '^-." iiV
M'X --^^V^'"^s '*"
b.oo
s -,f s ^ ^ ^^,&^ / ซ ^v
';,-' '-'""' '!,;i; t-';A'-
^-.^''^ ^-r/'^ ^ "'
' ' ' '!J" \ '*& ' ' V*
-0.23
Y^r^'^
;,^W:^'.
i= '*; ^' ^ /- ;'ซ•• •• <, -
; ' ; / /,S*< ,A
2.42
'l.'^'-.V^V '•>-
0.12
S \<^> A SW^SW %^t ซ.

s'V i "' ฃ*** / '' '-
0.12
-0.58
-0.35
'•> ; '^ " ,* • %" •*
,t* ,- '"' }^t ,"" n ifc
0.00

;-^ - V--:"-'vซ' -t-

, '''• '' %' i. .,
-' ' > v* * "• ,' /'
',< 'S ',''' '"'- •' ,
v ^< , , -.A\->'' ^' ,v? ''^ - , ^
.'^W^' ;^' Vv
-o!u
^•V N/ > " - -. -. f ft
l^>>';i-^-'-
'•. '-^'- , , ***' '
""; ,** *'i^ '?*•*'' J{>.~
-ฐ;v;)- ;V,^xir
-0.02
-0.48
-0.25
-0.14
s^c?" ;-~r- ,,T 'v^'
0.09
-0.02
,<,,,:?-l4.
0.55
0.09
-0.14
It s Above
U s Below
,; ^.- c.,y, ป--_ -
0.00
^ -s ^ • • , -, ; ^ <• ..
':-",>"r^'"?.'*^'
^w ^ "/-• ' '
"'-^-U'i--' ;-;,V-
\:,^ 5-^v *:\-
0.12
-0.35
-0.12
0.00
-:";"^T-~j^<ซ'!;1 - r~™
0.23
0.12
0.00
0.69
0.23
0.00
control limit
control limit

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                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                                   34/43
Cesium-134

Lab     Res. 1
                                     Exper.   Rng anal            Normalized deviation
                 Res. 2     Res. 3     Sigma   (R +  SR)   Average  (grand-avg)  (known) Tag
WO
WR
WW
X
XA
          2.0
          7.0
          6.0
          5.0
          6.0
                    3.0
                    7.0
                    6.0
                    5.0
                    6.0
     3.0
     7.0
     6.0
     8.0
     6.0
0.58
0.00
0.00
1.73
0.00
0.118
0.000
0.000
0.354
0.000
2.67
7.00
6.00
6.00
6.00
-1.29
 0.21
-0.14
-0.14
-0.14
-1.15
 0.35
 0.00
 0.00
 0.00
XT
                     6.0        6.0       0.00     0.000        6.00      -0.14       0.00
                                                                       "T:— r™ ;?.- ™ :-';;""."
Average
              Tag
  Data sorted by Laboratory Average
Lab \  Average	Tag	Lab \ Average
                                     Tag
                                       Lab
    1.67
    2.67
                         CO
                         WO
         4.33
         4.33
                 QM
                 FE
                 4.67
                 4.67
                          XF
                          MV
 • = No data submitted
 0 = Insufficient data
                                      TAG SYMBOLS
                               x s Determined to be an outlier
                                            ft = Above control limit
                                            •d = Below control limit

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35/43 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
Cesium-134

Data sorted by Laboratory Average
Average Tag Lab
4.67 LR
5.00 S
5.00 QP
5.00 FJ
5.00 AU
5.33 OM
5.33 MP
5.33 AJ
5.33 AF
5.67 XI
5.67 TQ
5.67 SD
5.67 QW
5.67 QT
5.67 HP
5.67 BN
5.67 BB
5.67 BA
6.00 XT
6.00 XA
6.00 X
6.00 WW
6.00 UP
6.00 T
6.00 SN
6.00 SF
6.00 RK
6.00 QZ
6.00 O
6.00 NJ
6.00 M
Average Tag Lab
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.00
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.33
6.67
6.67
6.67
JS
JM
I
EX
E
DO
D
CS
CA
XK
XD
W
VI
SM
RZ
QU
Q
PM
NH
KX
K
JE
EL
EB
CP
BK
BC
A
SX
SI
LF
Average Tag Lab
6.67 HK
6.67 ffl
6.67 GQ
6.67 DD
6.67 CX
6.67 CJ
6.67 CE
6.67 C
7.00 WR
7.00 VT
7.00 VO
7.00 TD
7.00 L
7.00 FL
7.00 BM
7.00 BL
7.00 BH
7.00 AE
7.33 DT
7.67 U
7.67 BO
8.00 VH
8.00 SS
8.00 HL
8.00 AW
9.67 AL
10.00 DE
10.33 AZ
13.00 PD
14.33 AK
16.00 x JG
% responding labs Frequency distribution



' --------- ------------------

10 	 	 J
-. .n






H_____ ________________
. 	
1 	
+2 ' +4 ' +6
Normalized deviation of the mean from the known value
• a No data submitted TAG SYMBOLS 11 s Above control limit
0 & Insufficient data x = Determined to be an outlier & & Below control limit

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                 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                               36/43
Cesium-134
 % responding labs
Frequency distribution
 30'
 20
 10
            f      T      I
                               -2
                                                          I      I       I
                                    +4
+6
                    Normalized deviation of the mean from the grand average

-------
                  ESD-LV Performance Evaluation:  Blind-B, 20-Oct-1998
                                  37/43
Cesium-137                         Statistical Summary                      175 Participants
The known value of this nuclide is 50.0 pCi/1 with an expected precision of 5.0; the control limits
are 41.3 to 58.7; the warning regions are 41.3 to 44.2 and 55.8 to 58.7
71(40.6 %) Failed to respond
7(4.O %) Outliers ••'
         Statistic
                 92(52.6 %) Within all limits
                                                                  — -5(2
Respondents
.9 %) In warning zone
    but within control

       Non-outliers
Mean
Std. Dev.
Variance
% Coef. of Var.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
50.98
7.33
53.73
14.38
1.96
0.13
51.00
2.00
0.14
Grand Avg 50.88
2.72
7.39
5.34
1.77
0.32
51.00
2.00
0.37
7(6.7 %) More than 3 norm. S.D. ป,^
5(4.8 %) Between 2 and 3 norm. S.D
             67(64.4 %) Within 1 norm. S.D.
                           of known value
    - 25(24.O %) Between 1 and 2 norm. S.D.

-------
38/43
Cesium-137
Lab Res. 1
A
AE
AF
AH
AJ
AK
AL^
AU
AW
AZ
BA
BB
52.0
46.0
52.0
53.0
52.0
45.0
^_JKM)w
"^fi^'"^ff*
48.0
50.0
52.0
48.0
JJC 53.0
BH
BK
BL
BM
BN
BO
,V64;6^
49.0^
> ". ' ' !^\;4: M '
i
ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
.
Res. 2
52.0
48.0
49.0
51.0
.50.0
45.0
52.0
US
49.6
49.0
47.0
47.0
50.0
53.0
51.0
55.0
49.0
50.0
51.0
52.0_
49.0
49.0
52^0
58.0
45.0
54.0
54.0
51.0
i~™-*|r";;:
*" -,^^C'
50.0
50.0
\; X.^V-*
55.0
52.0
50.0
* 64<0'*
51.0
*''',' •,''ปV-:'";'
Res. 3
53.0
52.0
52.0
58.0
51.0
45.0
_, J?iฃ~
V ^^ *'* "- %' "***$
^ ^^>-> \ ^^S^ '
49.0
49.0
53.0
48.0
49.0
54.0
53.0
55.0
53.0
51.0
53.0
J52.0_
46.0
50.0
51.0
59.0
5o!o
52.0
52.0
_^,50.0_
48.0
50.0
50.0
•-" "v1"-...,, '-
54~0
't* -''640'>
49.0
;^" ;-^-
• s No data submitted
0 s
Insufficient
data
X 3
Exper.
Sigma
0.58
3.06
1.73
3.61
1.00
0.00
	 (> _^29 ^
*A"l.73
0.58
3.00
2.65
1.00
^0.58
1.15
0.58
2.08
0.58
1.53
	 q.58__
1.53
. ,~, J:21
0.58
3.79
2.65
1.15
1.53
	 0.58^
2.00
0.58
': ',, 'T'' ,v , •',
2.52
1.53
%%-i '^ J "''
2.08
'^<:^OJOQ^
v,.._,Hi-ij!L.
?'%"^"l:;-::-c
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
0.709
0.354
0.827
0.236
0.000
_JL345
0.354
0.118
0.709
0.591
0.236
0.118
0.236
0.118
0.473
0.118
0.354
0.118
0.354
0.709
0.118
0.827
0.591
0.236
0.354
0.118
0.473
0.118
0^591
0.354
0.473
>|6,66o
0.236
*? ^-
-'x:,rฐ'^
52.33
48.67
51.00
54.00
51.00
45.00
_^J>6.00
48.00
48.67
50.00
49.00
49.00
53.33
52.33
55.33
50.67
50.33
51.33
52.33
47.67
47.67
51.67
56.33
47.00
52.67
52.33
50.33
50.00
49.157
52.67
50.33
51.67
;; ";':">:64.-00
;>-."vv^;
' ^ -' ^^ ^<*.^
TAG SYMBOLS
Determined
to be an
outlier
0.50
-0.77
0.04
1.08
0.04
-2.04
_ _^1.77
-LOO
-0.77
-0.31
-0.65
-0.65
0.85
0.50
1.54
-0.07
-0.19
0.16
;_s_j0.50__
-1.11
-1.11
0^27
1.89
'*?" , ' IQ-fi'l- V *
>"*-'-, >^MJ.OปUA •
-1.35
0.62
0.50
-0.31
-0.42
0.62
-0.19 _
0.27
**^;-''>:~~4!&4''^.f
"^A ; ;*r^;..ซ'5~"\, s ;-
- * -,*.,U -- --> - ' >
IT = Above
li = Below
0.81
-0.46
0.35
1.39
0.35
-1.73
,2.08 ___
-0.69
-0.46
0.00
-0.35
-0.35
1.15
0.81
1.85
0.23
0.12
0.46
0.81
-0.81
-0.81
0.58
2.19
•i&foV-Y^x -
-1.04
0.92
0.81
_JU2
0.00
-0.12
0.92
0.12
0.58
r^sBV^x -
-0.12
:" .^ ".,:"ป ;
control limit
control limit

-------
                    ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                                            39/43
Cesium-137
Lab
         Res. 1     Res. 2     Res. 3
                          Exper.   Rng anal              Normalized deviation
                          Sigma   (R +  SR)   Average   (grand-avg)  (known) Tag
EX
FE
          47.0
          49.0
          56
          52.0
St^V**? ""• '"V^^0^-.--^1^ ^s*%^%y<^X*\*tV V'**,^v^'\^'v v*s*%*cป%cv ^&A*v? ~ ฐ" ^-f-'^V *t<*^V ^^**^*^^N^"f*^ ^\*3v^.3&w jw^;\?r% A^^^^^^^^^i^^v^?^^r -f-f^'^i
 ~~  44.0       47.6  "    7.73      0.354   "46.00      -1.69      -1.39
     48.0       54.0       3.21      0.709       50.33      -0.19       0.12
spw-\^v?;^^
^^"^v^X^x.t^?^iซ*8งฃ$Ss. >*>;ป?*!^'sfSj^i j^V^^^Vw^w^J^.^*!ซ5V-!*;^%,'r^i:f"S**'4f*v
  ""* 55.0       55.6"   0.58      0118       55.33  ""   ^ 54      ""^
     54.0       51.0       1.53      0.354       52.33       0.50       0.81
50.0
54.0
54.0
49.0
51.0
                                49.0       0.00      0.000        49.00      -0.65      -0.35
                 ^S"-"?^^                           < •<" 'VviSSW!*? r^f5: - ' -JT^SssyS ~ •" s'T~v,-'SVป" vwv  - ""ii^SSst * •ซป•ซ>ป jซv jTOt,

                     49.0       48.0       1.00      0.236        49.00      -0.65      -0.35
53.0
52.0
48.0
50.0
54.0
54.0
49.0
54.0
0.58
1.15
0.58
2.08
0.118
0.236
0.118
0.473
                                                  53.67
                                                  53.33
                                                  48.67
                                                  51.67
                                                                              0.96
                                                                              0.85
                                                                             -0.77
                                                                              0.27
                                                                                         1.27
                                                                                         1.15
                                                                                        -0.46
                                                                                         0.58
KX
L
          56.0       51.0       58.0       3.61      0.827        55.00       1.43       1.73
          49-?.w..-.,-6i2,......ซ^?1-ฐ-^v.,,i.^      Hฃ6        59\33~      "9,-19       94?
          54.0       56.0       51.0       2.52      0.591        53.67       0.96       1.27
                                                                                        -0.46
                                                                                         0.69
 • s No data submitted
0 = Insufficient data
                                          TAG SYMBOLS
                                  x. = Determined to be an outlier
                                                             ft s Above control limit
                                                             $ s Below control limit

-------
40/43
                   ESD-LV Performance Evaluation: Blind-B,  20-Oct-1998
Cesium-137
Lab
        Res. 1
                                        Exper.   Rng anal             Normalized deviation
                  Res. 2     Res. 3     Sigma   (R + SR)   Average   (grand-avg) (known) Tag
  ,^'W-^^^?*^
   ,-'- -  VWA '•••  ^\k>/-*V,/"-v"i. --v-\"'?-'^SXA,-,x ;',.,>< •••/•>•*"/-4;^'? ,* ;< ->-:,v. ^/,,s-,-,-v,;-- ~,-V-<  -.•;•-**::•;
  >^'?#3ftU>?~':':'<*-06^^;^ ^'"W^P'':A^~>,. <%'"-'V. ^-<^~V- *••'"""'"'<:•'v>A<,-vs^ -- ~^$,ฃ-  -,? <: y -: ^^ * ซ-w .5^- >,- - --  ^ ^\ . :y^ <,VK ,  _ _ ','•;, >*, <•.;--; -<;" V;^;>^•,;,
  ฃ„'.„.   -H-.9-  --	?i-5.'-----  5^?'.  J.-.'2-5S	\J5-*S.\.Tl.J53y?Jw,." 1 .?%27,J,.^,P^L
          pr* n       Af\ f\       ff\ f\       •ซ m      /\ oer ^       frv oo       /\ -i r\       /% •< r*
QT
QU
QW
QZ
  ~
         50.0
         44.0
         48.0

         50.0
RD       57.0
          50.0
RK
RZ       56.0
S        49.0
SD       49.0
SF
          43.0
SI
SM
SN
SO
SR
SS
SX
T
          57.0
         -\\v-
          ^ ,%
          49.0
          49.0
          51.0
          52.0
          48.0
48.0
46.0
46.0

53.0_^^

57.0
*v-Aj: "*•' "•"•
ซ'/;  ';;-"
'„'',;,^-;
49.0
^ ' '•.<. *V '•J ••  v
- /v<- *    ^>;
                    55.0
                    51.0
                    49.0
                    50.0

                    52.0

                    51.0
                    51.0
54.0
53.0
45.0
                               49.0
                               47.0
                               48.0

                               54.0

                               57.0
                               52.0
           f : •<  •' ,
          .*', ^
           53.0
           51.0
           55.0
           46.0

           52.0

           50.0
           52.0
   1.00
   1.53
   1.15
                              0.236
                              0.354
                              0.236
                     2.08
                     0.
                                          1.53
•; *J'\s ™^' \/
   1.53
   1.15
   3.46

. ..^.S.1

   2.89
•-l'^V-'v;;
 sv-- ,- i-
   1.00
   1.53
  Vs- A " /s
                                                   0.473
                                                   0.000
                               0.354
                                                   0354
                                                   0.236
                                                   0.709
                                                   0.827
                                                  " "•' "" 0""^ jt^v
                                                    v ' - -V .
                                                   0.591
                                                   * ",• / 
-------
                  ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998
                                                                                 41/43
 Cesium-137
 Lab
        Res. 1
                           Exper.   Rng anal            Normalized deviation
        Res. 2     Res. 3    Sigma   (R +  SR)   Average  (grand-avg)  (known) Tag
 TD
         53.0
          53.0
         52.0
                   0.58
                                     0.118
                                                         52.67
0.62
          0.92
 TQ      50.0      47.0      51.0      2.08     0.473       49.33     -0.54     -0.23
?*-•ซ•• yyy-yr-:ซซ<">>T"'ปW'llS'Kyy.- ,""" ^^<ซj!ซซ> ซซ<; ~v\-jro >v^~ ~~..^. ™.™vl>;jj..ป^..ป™,	",-^.'J-i^-if>\-1 *ซ""'', "' "^V~'^"^'rT'3r!^>*5^™~'5lvv"VI>
i^^SMil^^
     ป^ป_  ,,,v^*,,...ซ-ซ...   -        '6.236       51.00*    0~04      0.35
yp
V ~
49.0
  ^
47.0
51.0
e
48.0
         47.0
         eio
         57.0
                             2.00
                             ^
                             5.51
                                               0.473
                                                          49.00      -0.65     -0.35
                                                      f-'. - 62*66 {S^^af^^ v-^ie
                                               1.345       50.67      -0.07      0.23
 WO
 WR
 WW
 X
 54.0
 50.0
 53.0
 57.0
 48.0

"53.0
 49.0
 50.0
55.0
50.0
53.0
49.0
49.0
          56.0
          54.0
          55.0
          55.0
          45.0
                             1.00
                             2.31
                             1.15
                             4.16
                             2.08
                                               0.236
                                               0.473
                                               0.236
                                               0.945
 XD
 XF
JSI^	

 XK      61.0
Ti^^™w--vr"rr.^sr:ir-r!-"^:>\:
50.0
51.0
50.0

61.0
          50.0
          50.0
          51.0
         ; •  \ T--

          52.0
                             1.73     0.354
                             1.00     0.236
                             0.58     ฐ-ll|B..
                            ;."" *^H>^x:'7V^\
                             5.20     1.120      58.00
                                        ซ ^w.^.vft.% ^ w.s^ •.ซ W;,*J ^ ^
                                                         55.00      1.43      1.73
                                                         51.33      0.16      0.46
                                                         53.67      0.96      1.27
                                                         53.67      0.96      1.27
                                                         47.33     -1.23      -0.92
                                                         -.^OX...s™sssss^^w.^x% , tw.j;sw^% s^^^^os ^WW-L^^S

                                                         51.00*    0104      0.35
                                                         50.00     -0.31      0.00
                                                         50.33     -0.19      0.12
                                                           2.47
                                                                              2.77
lap?.^^^^^:-^;-^:^::;. ;-  ;-:-^r:	^vw •. ;T:-^^;^'"-';^
ปi^-^rr^t^^ -;->:—:^V^:-v  ^x^:v--^,;:^- *\^ V-:.-''v  ''*i:
|^:^;l/^^^tVOy\'.^  :V^'V.v:; ; x;;i<";t: ;;,'ฃ: \;/::; - -. ,,<•-V; ^ ^
 XT
          50.0
          51.0
          50.0
                   0.58
                                     0.118
                                                         50.33
-0.19
~~  \ ' '
          0.12
Average
13.33
27.67
Tag
X
X
DE
Lab
CO
QX
ita sorted
Average
37.67
43.33
by Laboratory Averaง
Tag Lab
X
P
QM
r.e
Average Tag
45.00
45.67
Lab
AK
QU
  • = No data submitted
 0 s Insufficient data
                                     TAG SYMBOLS
                              x s Determined to be an outlier
                                                          ft = Above control limit
                                                          •II s Below control limit

-------


42/43 ESD-LV Performance Evaluation:
Cesium-137


Blind-B, 20-Oct-1998




Data sorted by Laboratory Average
Average Tag
45.67
46.00
46.33
46.67
46.67
47.00
47.00
47.33
47.33
47.67
47.67
48.00
48.67
48.67
48.67
48.67
49.00
49.00
49.00
49.00
49.00
49.00
49.33
49.67
49.67
50.00
50.00
50.00
50.00
50.00
50.33
50.33

% responding labs

10" -----------
* m _
ฐ -'6 ' -4

• s No data submitted
0 = Insufficient data
Lab
MV
EX
SF
T
LR
MP
CP
XA
QW
CA
C
AU
NH
HP
AW
AE
VO
QT
HI
GQ
BB
BA
TQ
EL
DE
XF
SM
JM
DD
AZ
XT
XI

Average Tag
50.33
50.33
50.33
50.33
50.33
50.33
50.33
50.33
50.67
50.67
50.67
50.67
51.00
51.00
51.00
51.00
51.00
51.00
51.00
51.33
51.33
51.33
51.33
51.67
51.67
51.67
51.67
51.67
51.67
52.00
52.00
52.33
52.33
Lab
S
RK
Q
L
FE
DT
D
BM
W
SN
JS
BL
XD
VI
U
SD
M
AJ
AF
WR
QP
JE
BN
PM
OM
K
I
E
CE
SX
NJ
VH
QZ
Average
52.33
52.33
52.33
52.33
52.33
52.33
52.67
52.67
52.67
53.00
53.33
53.33
53.33
53.67
53.67
53.67
53.67
53.67
54.00
54.00
54.67
55.00
55.00
55.33
55.33
56.00
56.33
57.00
58.00
62.00
63.33
64.00
98.33
Tag Lab
OB
FL
CX
BO
BH
A
TD
DO
cs
ss
UP
HL
BC
X
WW
SI
LF
HK
O
AH
RZ
WO
KX
FJ
BK
AL
CJ
RD
XK
x VT
x JG
x EB
x PD
Frequency distribution
•
I Jill
.•-•••.••nil
• -'20
Normalized deviation of the mean


B_| 	 	
+2 ' H
from the known value
TAG SYMBOLS ft =
x = Determined to be an outlier U s



h4 ' +6

Above control limit
Below control limit

-------
                 ESD-LV Performance Evaluation: Blind-B, 20-Oct-1998            43/43

Cesium-137

 % responding labs	Frequency distribution

 10-
  (Hits,
                  -4            -2            0            +2            +4            +6
                    Normalized deviation of the mean from the grand average

-------