4>EPA
           United States
           Environmental Protection
           Agency
           Office of Research and
           Development
           Washington, DC 20460
EPA/600/R-97/050
April 1997
Uranium-Radium in
Water Performance
Evaluation Study

A Statistical Evaluation of
the February  14, 1997 Data
                                       023RSL96 cov-121

-------
      Uranium-Radium in Water
    Performance Evaluation Study
         February 14, 1997
   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 Uranium-Radium in Water; February 14, 1997.

   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 Pla 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.

-------
      E8D-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997    1/20


   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 and 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.

-------
2/20   ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997
     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 2.575(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.

-------
        ESD-LV Performance Evaluation: Uranium-Radium in Water,  14-Feb-1997    3/20
Uranium (Natural)                  Statistical Summary                      151 Participants
The known value of this nuclide is 27.0 pCi/1 with an expected precision of 3.0; the control limits
are 21.8 to 32.2; the warning regions are 21.8 to 23.5 and 30.5 to 32.2
30(19.9 %) Failed to respond

14(9.3 %) Outliers '
4(2.6 %) Out of control
     but not an outlier


         Statistic
                • 93(61.6 %) Within all limits

Respondents
"•- 1O(6.6 %) 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
     30.11
     34.02
   1157.45
    113.01
     11.50
      0.09
     26.27
     -2.72
     -0.02
    Grand Avg 26.18
                  2.21
                  4.88
                  8.44
                 -3.03
                 -0.37
                26.23
                 -2.84
                 -0.35
20(16.5 %) Mora than 3 norm. S.D. .
8(6.6 %) Between 2 and 3 norm. S.D.'-
            .63(52.1 %) Within 1 norm. S.D.
            •               of known value
     30(24.8 %) Between 1 and 2 norm. S.D.

-------
4/20 ESD-LV Performance Evaluation: Uranium-Radium in Water,
Uranium (Natural)
Lab Res. 1 Res. 2
A
AE
AF
AH
'A<£''-
AK
AL
AR
AW
AZ
BA
BC
BG
BG
BG
BH
BK
BM
BN
BO
C
CA
* m^f^""
\J\iP
CE
CG
CJ
,CM'<
cs
ex
D
DB
DE
DI
DO
DT
DZ
E
EB
EL
ER
• =
0 s
24.1
25.2
27.1
,..24.9^
1 '^"CMffi^/
24.2
29.7
	 24.3 _
27.4
26.8
24.1
26.8
26.6
25.1
26.8
30.8
24.8
27.0
22.9
23.6
26.0
,„ , 25JL>
30.3
26.8
27.0
;-,, , /"-4l-€^
24.4
29.9
26.1
22.0
21.7
25.8
_J4.4_
25.0
20.5
26.9
24.3
_^J24.6_
25.4
25.7
25.6
30.8
_^24.7_ _
'^-"^^v^
25.3
^,,J29.4^_
24.5'"
^llP^sf
26.8
26.7
25.6
26.6
26.8
24.9
27.2
31.2
24.2
27.8
24.8
24.6
27.4
^ ^26.5_ ^
31.8
28.1
27.0;
1':''v""'£¥^i:I»t-
25.0
29.7
26.8
25.0
21.8
26.1
< _ JX®^-
23.2
23.1
25.6
24.3
25.7
-tt^lFIF^fS
25.3
Res. 3
26.0
26.4
30.3
24.7
•jafcfr*-
27.4
27.7
l^^^lfv-'
-r^oofcT-^-v
. I?*;? .
^^^?v
26.5
26.5
20.5
26.5
26.1
26.4
25.8
32.0
24.3
27.2
24.3
25.0
27.0
_27.7
31.6
26.1
27.5
^^i;C;Cr:
24.5
29.8
25.8
27.0
21.9
27.0
,JS4.9_
23.3
21.8
28.2
24.8
^ ^25.6(^
SiSv^
25.7
No data submitted
Insufficient
data
V =
14-Feb-1997
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
1.02
0.61
2.01
0.12
' ::U"L7&, "- /- •
1.63
._ J-08 	
0.31
0.46
0.15
2.62
0.15
0.36
0.81
0.72
0.61
0.32
0.42
0.98
0.72
0.72
1.25
0.81
1.01
0.29
v/-^- •„-- . , ^ ,-
0.32
0.10
0.51
2.52
0.10
0.62
1.15
1.01
1.30
1.30
0.29
_J?-6A™, „
"*''", ' '• •• * •. "" *•-
0.21
0.374
0.236
0.728
0.039
0.66$
0.630
0.394
0.866
0.118
0.177
0.059
1.008
0.059
0.138
0.295
0.276
0.236
0.118
0.158
0.374
0.276
0.276
0.492
0.098
0.295
0.394
0.098

0.118
0.039
0.197
0.984
0.039
0.236
0.433
0.354
0.512
0.512
0.098
0.217
0.079
25.27
25.73
29.40
24.77
" , - 3IU5& » '--
25.63
28.93
; ' ' MM ™V
24.57
26.90
26.67
23.40
26.63
26.50
25.47
26.60
31.33
24.43
27.33
24.00
24.40
26.80
26.47
. "',1247 r, '
31.23
27.00
27.17
;'i,f: •• -,/ - -\ v< ;,-';
24.63
29.80
26.23
24.67
21.80
26.30
25.30
23.83
21.80
26.90
24.47
	 _ 25.30 _
'/ *^ 'XJ^ v-^t ^ Y"^ 'J^^^
25.47
TAG SYMBOLS
Determined to
bean
outlier
-0.53
-0.26
1.86
-0.82
- 5.46"--- "- ?
-0.32
1.59
-0.93
0.42
0.28
-1.61
0.26
0.18
-0.41
0.24
2.97
-1.01
0.67
-1.26
-1.03
0.36
0.17
2.92
0.47
0.57
'-- ' -.'.'.£'5'^
-0.89
2.09
0.03
-0.87
-2.53
0.07
-0.51
" v- *••<• %% ' '•*<£*"/
-1.36
-2.53
0.42
-0.99
j-0.51^ 	
-0.41
ft ^ Above
& s Below
-1.00
-0.73
1.39
-1.29
"'44&-v*Tx;r>,
-0.79
1.12 	
-1.40
-0.06
-0.19
-2.08
-0.21
-0.29
-0.89
-0.23
2.50
-1.48
0.19
-1.73
-1.50
-0.12
-0.31
2.44
0.00
0.10
£rfy^;-y-:~*';"'
-1.37
1.62
-0.44
-1.35
-3.00
-0.40
-0.98
-1.83
-3.00
-0.06
-1.46
J-0.98__w 	 	
-0.89
control limit
control limit

-------
	 ^
ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997 5/20
Uranium (Natural)
Lab Res. 1 Res. 2
FE 21.4 21.8
•f^vv^f •w^yy- •*w***«^lj«^.w^"-"^^v;t-^';fi5.1^" ^ «»*$«<«!£juw,)WW. w^^. •*
< V T~* "v '<---i?^'^, !*4i - J^M^^ FJv/«V
••»,**?-' » *" ;^*X\-XV^--S\\ ,V'i>.\\v\«^#'~«'-
yFNSf r - j^f^M^iM^:
GN 21.4 21.4
GQ 28.3 25.5
HK 29.0 28.4
HL 27.9 27.8
HP 30.2 29.5
I 28.2 26.8
^_JJPA^^J1:L „
ir\ x ^^v^^7rf'™w*^^s™'"~™'.y • TV*
Exper. Rng anal
Res. 3 Sigma (R + SR) Average
21.4 0.23
0.079
^"iJS^X^j^--^-;^-"^;;- \"t ;;>;-v,X~?^-T, !~!"
^lo^SJais; ".^4
22.5 0.64
26.9 1.40
27.0 1.03
25.5 1.36
31.1 0.80
28.9 1.07
J1.4 _ 	 2.06
^cr1 >- . " ~ ' -
0:069
0.217
0.551
0.394
0.473
0.315
0.413
0.768
\ -."^ ^ s sv^
-.V^'rtf?8- "-i V^^JX^^&^'s:;i!®W$^xv*x£k4>wV> .. ' / '-' ~'! °i "x ' *
^'TVV;^S1^$^?:-
. oo4^^Sr^15^3^
JK 27.1 28.2
JN 25.8 26.2
JP 24.4 23.9
J8 26.0 26.0
"= 	 "S* J *"">™ — a«W«!*t*"««W^v^^ww^*^^
1f\fi \s*'"*v <• ^*O •-'••vi 0$W^--^^J>'ltX ^"X. %*!!S *v$JjS,'"'X V \-i-l %
^JrfOfc^l •* ^""i"1 *•!&• YV, •• 5""**s ^ J"1^ V"" *'' X" ' ' s%' "^' *"% \ *"*%*
^..^_, ^_^^_..
K 31.8 29.0
KH 26.5 26.4
^^Lj^iiiS^SPi^^
KT 28.0 29.6
L 23.6 24.9
LF 29.0 28.0
'•LJ3f l^\^:?'-^™^'^^^^^
"viSi,'-' K,! > is<~\x?K-V\ !"' v ;' ~\"s"
- LT ' ;- • ^ SWfW •'. x3T4»6t, v:
LZ 24.0 23.5
;-^^ v/M^v
H^r^fvf o- x . V :-'-
28.3 0.67
23.2 1.63
25.7 0.93
26.0 0.00
•WNft^^wr*^^-.-^^-^.*1;^ "^"l ••vw^ ^-.^^-^^ « \ ^ s\
^>'i§ ^V'^>' '* ' • X >! \ -'
26.0 1.85
29.1 1.59
25.9 0.32
^"."iT^V^-^^ ' '" ' , > ;,\
* ^ V.r V ^^X^ *•!-« ,^ 0 ^ ^ - O
30.0 1.00
25.3 0.89
26.0 1.53
te^f>~ . '='.— v.-\
'v37M^r;:;8;83 .!, -
23.8 0.25
- M: -!;;?%^i8B^^Km^iJ^- ;^ o;de '* ,
l^/:-L-:^v^tvSSSi:
N 26.8 27.3
NA 26.0 26.0
'Wf^f^^S^S
NJ 29.4 31.4
NK 23.0 23.0
NO 27.1 28.1
NT 28.0 28.2
C^^^-||f?^^^^|
OB 26.9 26.3
^olFflHl^^iSi^^
- Aifrf K-'Stv^^v S!^^,c g^,^?*
o«|uxi ^>~ - ^-iir* '-« ~" -H^?^ $^%fi *-*• !
OS ^ 26X) 25!6
^ %;s -.s ^V-I-^.'^^^W.^V^S.*^ Ax.^s^^s- 	 ^^
• v Jfc1* JC^v \*^ o ' - ^v^ • ' " ^ v ^ N s"AVv%* ^-.^A^iiV^.
:6t^M3SltS"SS
P 27.8 24.4
• s No data submitted
0 s Insufficient data
O£^-?\&VT:V.,V,:
^^Tv^-.-^-'A.- - '
27.8 0.50
26.0 0.00
^^•K™.?"" ^ V^-^v. « •-•«;% ^ * H-.V. -.^y S *
M3p;;*: ;^. .a^r;v j-
28.5 1.48
23.8 0.46
29.1 1.00
28.4 0.20
S||f5f|^ / J ;
26.3 0.35
Cf!cp, :\\"T1"'~ v >^,T\'r-
^4>\v ?-.:.; ';"::>,
25.0 0.58
•<-^VA v^"^" " *%1* ^ w v -^ - •* ^ ^ •. v,« -A ^
^^>/s^VV^ 0 ! ^ \ *
\ \^ N ^ XS«S< «. "• ^ ^"'•.^ -•*
x^^xFS^:/-;- :: •-' ,>
"""S.6 	 1^72 '
0:551
^*
0.236
0.591
0.354
0.000
•L- S-^V, SW
w.i>r
0.630
0.551
0.118
' \*-° - V -
0.394
0.335
0.591

5.171
0.098
0.020

0.197
0.000
1J70
0.571
0.158
0.394
0.079
•.-• ••^ ^ *" "•
0.118

^--^ -\ N
0.197
SNK^S^ ^ > swsss


6.669
.. ^ 21.53 _
•• x^*"

21.77
26.90
28.13
27.07
30.27
27.97
„, 32.17^ ^
""* V sv i.V% *
- - - ^''"JslioK
%*•••• ^ j: \ --^
,V :->v;;:-^V^
27.87
25.07
24.67
26.00
••"•• ^ \* -^ >«;>».•'*'. vsv.^.^^
^ " ' v "^ « ^ t ^--"vl
27.07
29.97
26.27
v "" , \\ *), ^"
29.00
24.60
27.67
•V \ ,'<* x ' -
'* 378i57T^
23.77
- ' '^frljfi^
. - ;; ,\%\ ,v'^ -
27.30
26.00
'^;""73S;13^,
29.77
23.27
28.10
28.20
- •• ^ f % s "* ••- O
26.50
?;•' -7.7^>vfr^^
s t " '•'''"" \*
\ ^ ^ - " ••
_:. '.,25.33^

•'- -; > »s " , «\ .
i, ,, 0\ , ^ - --\, ^
' ' ^ -v
25.93
TAG SYMBOLS
x & Determined to
be an
outlier
Normalized deviation
(grand-avg) (known) Tag
-2.68
Mi^^^vS
l^t^isISS^
-2.55
0.42
1.13
0.51
2.36
1.03
3.46
,™. „. ,^5 xv t ,^,5w,.,,,5,,, . ,
;^~:^^ 4V-

;V.";;K^^
0.97
-0.64
-0.87
-0.10
V «^ v% ^WAW^^-AV-.V^^ -J^SS^ i- \^
*\o-** v ..v" sj" \-xsvly t"%
0.51
2.19
0.05
v-;;;r^:^;^
1.63
-0.91
0.86
, , - -V\"x^:VK
-3.16 &
v^^ff^*^
f*9;78^\"xv$'
-3.02 $•
-0.06
0.65
0.04
1.89
0.56
2.98
^Wvv «,•««« ^«"
, ^"^M *
x \ *' *" V ^ ^
^Cr Ofl ""-v ^ ^^
jfcO»OO">.\-. s >"
x/-^>>»
0.50
-1.12
-1.35
-0.58
™ .* v vj..*^^ — ^^y*^:^^vfl — v-^%
',v,^yv-^-'
0.04
1.71
-0.42
'; \-,° '/«
1.15
-1.39
0.38
^ •• •»% v 9
203^45:1! 202:08 : ~ k
-1.39
^V§J50'-?> '
-X^'^-V - *. x'\', '
0.65
-0.10
^sJf^I
~207
-1.68
1.11
1.17
\"?v.\£^£
^^^o.i£^_
~\>r -^y ^s ^s* V|^ \
v O1-^ '"•''••''•• i-."1 \s •.'•^ ^ •• *•
x -x- "-.yv -Vs
,- , - \! -sV^t
-0.49
WAW^rt S%S |MMAM^,^.Apk •.^Vl^^V
„-> -'H^-xjf^f
-1.87
"Xv*v fx s % JCx"1 "
, ^ ' ^ ' \ \, % - ^\ t ^
0.17
-0.58
TgTdf^^"
\ &*M t^\ *>••
1.60
-2.16
0.64
0.69
'::p, ~^>V.,T-"
-0.29
*• • ' '^Ij,
,:v;r'-^ «;,
-0^96
>S ^ 1 , \ V>V^>\\%^AMA Y^^^X s *-
>t\ v\t.-v"-j ; ,»; , '
' ;"" OV'% " -4xs^;^ SK>«^ ^> .-%-\^; ^ H ^^ ,-* N
'- -,> o-^vs>^ xs<>-,>-S.x 	 ^;>;x--
^^*^'^& :;,: ,^^S\ "? ' •
-0.14
ft s Above
li s Below
-0.62
control limit
control limit

-------
	 . 	 ^
6/20 ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997
Uranium (Natural)

Lab
PBt>
PG
PQ

PW
PX
Q
QM
QQ
9V
'**(* ? ,
•JLj~;
RD
RF
RG
"REf^
RP
RR
CM""
RZ
S
SC
SD
• SF
SI
SL
SM
SO
ss
sx
sz
T
TD

THv
jw*' \
•'•*>
''IN-.
TQ
U
,^%
i fjjp

uz
• =
0 s

Res. 1
£?>#&$$£
25.0
26.3
f^1&W^*H:
23.8
25.3
... 27.5_
^?f"f-;7f^
26.6
18.0
•g^;iiii§
.1 27-ll~
24.1
24.3
26.6
^fr^j^
28.0
28.6
7^r?l|;>
27.6
24.5
27.8
23.3
26.1
26.6
25.0
30.1
25.3
27.3
26.6
26.1
28.0
27.8
,\ v.-.\ f~^ f •. *-.
**•£ -. *'•• * ^ V"
'"-r?", '^I'f;
'r ,*'/' * '- - ' ? - - 'v
; -, ,-.-•/•; y " ''
26.5 _
', 2£/L.,
24.7
f^5^^™*^;^
~ '?• -. y*-v\ * •••' ../ '" ••
27.8
VSiitF "^'jiiei s*?:"^
•^ -i^ -««ip,;i;4

Res. 2

22.4
26.3
^MS^fr
24.0
27.5
_^27.5^
r%"^!^p$;J
25.7
,. ,,19:9v, .,
' V"27jf '
j^V^^'' "" ^^'"^.§^^:''^'!' $ y^
% V? ^ •"• ^* / Cx''1*'" "" j%v->-''^'-'>^; v*1
24.1
25.1
^26.7__
'^^^'^''•^jw ii'^.v^-v
;^42?7^*
27.2
28.1
:^^I^i
25.3
24.9
27.3
24.3
26.4
26.1
26.0
30.0
27.2
25.7
26.7
25.7
26.8
27.4
>"•"• ^ f '; *"v\*5V"'..'' ;^'^^
^//'j'&Cist^v': '*•-••
r^v'^t^t'0
,4V^?'^\ *^ ^
'*" 25!5" "
. -22:5^
J"28.p^"
24?1 '
27.8
26.4
^^14^:
27.4
28.4
f^fiK
24.7
23.9
28.1
23.9
26.1
26.3
25.0
36.1
26.1
26.3
25.2
26.7
25.5
28.0
\ ..Sl. ' ^ f '" J ''*
T«jj4*-< j>\"-,
f^>^tX';"',^
^f-V rf^**' 5;™^
^ll '£/,^
vJiyjw
I^!*
^jii'
^^f^pp§:^^
, ; ^V^^ - ' *
22.3
No data submitted
Insufficient
data
x =
Exper.
Sigma
%'f #,10 ;
1.66
0.58
^•> ••*•** _. ^ ^
s?'' ' ''fyt -jfWi "*
' \ ^fiJbtUvf ""
0.31
1.11
0.40
''- ^ -; ; „'•.
0.59
2.26
IT,,'. 9- 17
0.01
1.83
0.15
\V- QM
0.42
0.25
T-r",i;dd{'
1.53
0.50
0.40
0.50
0.17
0.25
0.58
3.49
0.95
0.81
0.84
0.50
1.25
0.31

~ - A

9-7': ^' „• " "
*},' ••'
~",',L , ,9/21 ^
0.32
_'JJl-80.
r's;^}7"'"'/'r;'
N '" / '^ ^
2.99
Rng anal
(R + SR)
0.039 1
0.610
0.197
A13.7$1;
0.118
0.433
0.138

0.217
0.886
0.059
t- , ". ''
0.000
0.689
0.059
0;256
0.158
0.098
" ; 6.394
0.571
0.197
0.158
0.197
0.059
0.098
0.197
1.383
0.374
0.315
0.295
0.197
0.492
0.118





0.079
0.118
0.650


1.158
Normalized deviation
Average
8,80
24.30
26.63
mob
23.73
26.50
.-27/ra
/' J?7!7 "
25.93
20.13
27.80
24?10
25.73
26.57
',: -18*471
27.53
28.37
;-'""'&8^;
25.87
24.43
27.73
23.83
26.20
26.33
25.33
32.07
26.20
26.43
26.17
26.17
26.77
27.73





26.67
25.57
23.47
•- "- \ "".. ,,,,,,,,,!",
fe •. •. -
24.37
TAG SYMBOLS
Determined to be an outlier
(grand-avg) (known) Tag
, ->10>03^<-=^>
-1.09
0.26
7 -.,~61;67'":;f ?T
-1.41
0.18
	 9:90__ t
^^-^/v/^ ;<;
-0.14
	 -3.49^ ^^
0.93
-1.20
-0.26
0.22
; ;:-7J4v "^'
0.78
1.26
"'7'4Ls2Tw;i
-0.18
-1.01
0.90
-1.36
0.01
0.09
-0.49
3.40
0.01
0.15
-0.01
. -0.01
0.34
0.90

,' "',-- s" f "\ \«\-
"\ ^ . ' ,''
' •• ' X '- "" ' "" ''A *
'''<.* V. *V;,C.™
*-,p]z8'_3»7
-0.35
r7,.:isL,-»
' \ _-''' ?-/ ^ --X>-{

-1.05
1t s Above
•li 3 Below
10.51; X
-1.56
-0.21
elloTywj
-1.89
-0.29
^0.42
_I;'PF'V:;^
"-6.62
J.96 	 b 	
0.46
-1.67 	
-0.73
-0.25
Mf'7*v
0.31
0.79
&W^W'<,
-0.65
-1.48
0.42
-1.83
-0.46
-0.38
-0.96
2.93
-0.46
-0.33
-0.48
-0.48
-0.13
0.42
s > 7 "" ••
;x ,V'*x ">•'• * V*
•: ^ ,: • ,.,<
-^^ ^ ^ ^ .-:N'--^ ''•. *••
, "J":\ ','",.*„».
:ai9^^1™l
-0^83
;2^1_,™_,
;lM*f >xf n v *'i^-, "

-1.52
control limit
control limit

-------
ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997 7
720
Uranium (Natural)
Lab
VH
VI vv_
'^|||E
^WCsTf*?)'*
WG
WH
WI
WJ
WO
WR
^wsi^T
• ^
X
^ XA^^
^1f',C|T|;:
Res. 1 Res. 2
27.5 23.3
,26.1% J26.1^
S>5^®§S
j| V-v!^ :|^- ". ;>y
Rnganal
(R + SR)
0.866
0.197
>:'?-' -:\-'-:'

0.158
1.720
0.098
0.492
0.158
0.059
^vpn"^":
0.532
0.650
1.008
••* \ \* \\ XV% '-•!•''
Normalized deviation
Average (grand-avg) (known)
24.63 -0.89 -1.37
25.77 -0.24 -0.71
>>x -,:5<^^: : .X^l?i:-^' '
s *; '^\ "*', ' ; ,- ,'s-';^;i^~-;^\ >!\;*-v \-^!'T
26.53 0.20 -0.27
30.07 2.24 1.77
27.27 0.63 0.15
24.70 -0.85 -1.33
27.40 0.70 0.23
23.43 -1.59 -2.06
•~!-S;ViT*^ " V;""F
21.47 -2.72 -3.19
25.50 -0.39 -0.87
26.90 0.42 -0.06
% osss ^ * « s %x"x% ^c ^ ^ xx x* ""•" d"" "s "% ^^ ^ V •^A^
•». s ^ -.^ \**O ^-•^ ^ - V %X % -t' \ «-\^ s*. ' > ••- N-S^ IX
Tag


s \ *
«•?>






V^T:
"li

^ " t v.
o«x
Data sorted by Laboratory Average
Average
5.53
8.80
9.57
10.07
12.17
13.47
20.13
21.47
21.53
21.77
21.80
21.80
23.27
23.40
23.43
23.47
23.73
23.77
23.83
23.83
24.00
24.10
24.30
24.37
24.40
24.43
Tag
X
X
X
X
X
X
li
li
li
li
















• = No data submitted
0 = Insufficient data
Lab
RX
PB
M
FN
CC
RK
QU
WX
FE
GN
DZ
DE
NK
BA
WR
UP
PW
LZ
SD
DT
BN
RD
PG
UZ
BO
8
Average
24.43
24.47
24.57
24.60
24.63
24.63
24.67
24.67
24.70
24.77
25.07
25.27
25.30
25.30
25.33
25.33
25.47
25.47
25.50
25.57
25.63
25.73
25.73
25.77
25.87
25.93
Tag


























TAG SYMBOLS
Lab
BK
EB
AR
L
VH
CS
JP
DB
WJ
AH
JN
A
EL
DO
SL
OS
ER
BG
X
U
AK
RF
AE
VI
RZ
QQ
Average Tag
25.93
26.00
26.00
26.17
26.17
26.20
26.20
26.23
26.27
26.30
26.33
26.43
26.47
26.50
26.50
26.50
26.53
26.57
26.60
26.63
26.63
26.67
26.67
26.77
26.80
26.90
It s Above control
x = Determined to be an outlier li a Below control
Lab
P
NA
JS
sz
sx
so
SF
D
KH
DI
SI
ss
CA
PX
OB
BG
WG
RG
BG
PQ
BC
TQ
AZ
T
C
XA
limit
limit

-------
8/20 ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997
Uranium (Natural)




Data sorted by Laboratory Average
Average Tag
26.90
26.90
26.90
27.00
27.07
27.07
27.17
27.27
27.30
27.33
27.40
27.53
27.67
27.73

% responding labs
Lab Average Tag Lab
GQ 27.73 SC
AW 27.73 Q
E 27.80 QZ
CG 27.87 JK
HL 27.97 I
JY 28.10 NO
CJ 28.13 HK
WI 28.20 NT
N 28.37 RR
BM 28.93 AL
WO 29.00 KT
RP 29.40 AF
LF 29.77 NJ
TD 29.80 CX

Frequency distribution
Average Tag
29.97
30.07
30.27
31.23
31.33
32.07
32.17
34.17 x
35.53 x
36.13 x
43.33 x
52.53 x
68.53 x
133.00 x
378.57 x
•
Lab
K
WH
HP
CE
BH
SM
ID
AP
AJ
NH
QX
VA
JE
PV
LT



- 1"

-6 -4
II III
_lllllllll_ ....

-2 0 +2

— • - -_

+4

I

+6
Normalized deviation of the mean from the known value
% responding labs
Frequency distribution





0 •* • -i
ImMWmm
lllllllll.l ...

m_ . . 	 	
-2 I ' T 72 ' A '

. 1
+6
Normalized deviation of the mean from the grand average
• s No data submitted
0 s Insufficient data
TAG SYMBOLS
x s Determined to be an outlier
IT s Above control
II = Below control
limit
limit

-------
        ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997    9/20
Radium-226                         Statistical Summary                      149 Participants
The known value of this nuclide is 5.9 pCi/1 with an expected precision of 0.9; the control limits
are 4.3 to 7.5; the warning regions are 4.3 to 4.9 and 6.9 to 7.5
47(31.5 %) Failed to respond •
7(4.7 %) Outliers -•
5(3.4 %) Out of control
     but not an outlier


         Statistic
                . 79(53.O %) Within all limits
Respondents
11 (7.4 %) 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
      6.36
      2.20
      4.86
     34.67
      7.76
      0.21
      6.00
      1.69
      0.05
  Grand Avg 5.95
              0.79
              0.63
             13.29
              0.85
              0.06
              5.97
              1.13
              0.08
12(11.8 %) More than 3 norm. S.D.
11 (1O.8 %) Between 2 and 3 norm. S.D
            .50(49.0 %) Within 1 norm. S.D.
            •               of known value
                 tween 1 and 2 norm. S.D.

-------
10/20 ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997
Radium-226
Lab
A
AE
AF
^AH
•tAtfi
AK
AL
AP
•*% iiijj yf*
'""Alt'
Res. 1 Res. 2
5.0
5.5
5.8
f_5.2 	
•%*^3UtaJto^.' *i ^>" ;-i
5.7
6.2
5.0
j. ..) - fr.v>JSv ySX'-j^S?/ «V ''"'.••&<:.•" -^J
\' ''^^£$j$^$J^*&i ?%•££<

AW
AZ
BA
BC

BG
BH
BK
BM
BN
BO
C
CA
CC
CE
CG
CJ
frltit
-•>t/flfE
cs
,jx£
DB
DE
ni''-'
:*>
" DR
DT
DZ
- *" i y *
„' BA-
EB
EL
EO
1SR;
ER

jutlS*',
: ^ Jp*r
: ^ip^fc

5.0
4.8
6.1
6.7

*/• ''//Vs^-^v'^' *'"''^'j'-i'v
"B74
5.7
5.8
5.7
6.1
5.9
6.6
5.0
5.9
6.0
5.0
" < " "\ ; , "^v-^ v^\ ^V" "
-. " '•."•• * ' " Tls\ -.^t-. ^C ^*' ''
,_6.0'""/^
2^ISS:¥>rS
	 6.9 	
5.9
* NW ^^A.^^^^^..^^OKS^^....;•^J^%j•,....•.^J^? wi
, -.v'^^.^
^', ;•«';• i-^^f i'T^-f"' '^M*i
	 4.8" "
7.1
vst>'?h -' ifs^iKiV' *,
j,\'v ','- "-;-f!'^>K-: ' -A"-'t ''' "
5.4
6.3
6.2
^>>.r>^y^S^^
6.1
v 	 ^ w v,^^ A.,,.SW^SN,^ V.^.*--^V.SX*V.>-«A.
f'*,vv s;* \^.- .v.^-^»;^--'ifA^s ' ^^-c-c?
" r 5 H "J- s , s " ^ s\KV *** "--.-- '"t^"-'^--
^v"^ ^/^ ^^i^ ^x**^^^ '

5.6
5.7
5.8
5.5_
052V- '
6.0
6.1
5.2
W<*.^\" " v-^v
?!^/,),"-jii'!/
^^5-i
2,6-,fxr ^5
5.5
6.5
6.2
6.7

' ^'K!~*'iS
5.5
5.7
6.1
5.8
6.2
6.3
6.7
5.4
5.9
6.0
5.4
^"'v^T;
V^ /Uvx^
5.7
,4'x;v»;
6!o
5.9
^•^^ 4 &&*
'.f^^"3$vffi ''• V
i^^ ^>^

Res. 3
5.1
5.8
5.5
5.2
/ ., •.-'"' *.i^ j j ^;x^
•T v\ •. \ T I ••^t*™*
V 'x1
5.3
6.4
5.4
W-^^^-v-v wjS1-  /.
VlSf''^y "''"•"•-'•
iftfiSj
6.0
6.9
5.9
6.9

A'A^'/."* •''
5.2
5.8
5.7
7.1
6.1
6.5
6.9
5.2
5.2
5.8
5.4
^^^^
^f^i-^Ms
5.1
7.3
•s!.a;v >7'5-- ,": '**
- * ^"^ /V"V
5.9
6.2
4.5
'••'• '^ v V"1^ •'"O"
".?-H«

^AVA •-*** ^ •••• •• V^^
•.V>i'S>>J- V*
T-'^P?^''*"

• s No data submitted
0 =
= Insufficient data

X s
Exper.
Sigma
0.32
0.15
0.17
_,(U7s _
:^ ' •" v C ^ "
£?fei&3£"v'
0.50
1.12
0.15
0.12

.. ' '^ ' "
0.15
0.06
0.21
0.78
0.06
0.31
0.15
0.20
0.40
0.12
0.23
f;rx>^,>^;' l
^ ,^ , ^ "
0.25
*ffH^, - -• ' '.'.
0.75
0.06
:«*1W«''^O1\vX1'^ ?v }\ ' ^ V|"
^^;"-"^\
4^y;!^,v";^ ^ ^ '•-_
0.15
0.12
** ," ;/ (^";>, , -,*' "
"•??;*"*<, / - ',
0.29
0.06
1.01
-'/•"-? ' " - ' -
0.06
•LJW+Wrt* AS,V^J.V.^ •. ^M S
^ * %.. /.•.• ^ ,N '•
-. h\ -•;> , ,-, * ,\ ,
"-\",- ' ^' - ' J " ^ <

Rnganal
Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.394
0.197
0.197
0.197
?(K788" " -' \
0.459
0.197
0.263
_,'.<-.; " •• •• ' " " "s-r

.":0jaM '^°:;'
0.656
1.720
0.197
0.131

, ' -~! •,>-,,"--
0.197
0.066
0.263
0.919
0.066
0.394
0.197
0.263
0.459
0.131
0.263

•• ^ \ \ ""••''''''
0.328
/ --C -- >•> ' : •'* '•..
0.984
0.066
>w ' v "• / *" •.', \ "" * ^ "
- % *",*",*
* ^ ' , >^% \ •• ^ "• ''__
* ^ ^ V % -.'
"'-^ ' - v' " >~'~ >•> ;•-' '- ,
0.197
0.131
"• ', "- "! ; ,. " ' ' ">

0.328
0.066
1.345

0.066
% ,-. ^tftff. ^wsf.y.jff.n'.vt ^^^^ •. WA.-.

-"• - * - "\-
'*" > •• ' i

5.23
5.67
5.70
5.30
0,07
5.67
6.23
5.20
,-^ s*A % yO
.. ••"• %
ij3>>
5.50
6.07
6.07
6.77

:-U, /•>?,>•
5.37
5.73
5.87
6.20
6.13
6.23
6.73
5.20
5.67
5.93
5.27
* •> W.

5.97

6.80
5.93
T'n^-x
" ;'"" , "
' "^ „'•'• -"-•
4.93
7.23
, V- "; """
'
5.57
6.27
5.67

o. JL /
•rt •J.VJO. W* -• -.-•*
""'' •>
v"" *
" "/< J"

TAG SYMBOLS
Determined to be an outlier
-1.38
-0.55
-0.48
^^-1.25 	
-;9.0d", ' "**''••
-0.55
0.54
-1.44
v ', ^ -\ '"••• " - "---i *', ^\
' '\ s + —
'-'iii:i ,:v
-0.87
0.22
0.22
1.57

! , '"••"/•. \ -/-•• ''-' '
-1.12
-0.42
-0.16
0.48
0.35
0.54
1.51
-1.44
-0.55
-0.03
-1.32
' , >' . " ' ",- '"-~

0.03
V^v'-"- v<-
1.64
-0.03
^•yr^?^'ft"ir
"5^f^;^
,,;,,,'>\<''"';i..!X>f!'''
-1.96
2.47
' A*.™^-* C~,'!;Vi'S"
,' " ' -X "it * -'>
-0.74
0.61
-0.55
--„'" -,.^.^'^ , ;',
0.42
fS iffffffffjf^ •.-.-. %^J --V. V.WWWW

W t" ^1^- -f ^**s"'V
- <.'X-^-^ s V > ' ^ ,"

tl s Above
ll> s Below
-1.28
-0.45
-0.38
-1.15__ 	
Sft«*»L -' ' ,^5 "
-0.45
0.64
-1.35
\V' -v/ rt%ft\'
-1.63""' 	
-0.32
-0.06
0.58
0.45
0.64
1.60
-1.35
-0.45
0.06
-1.22
"? s ", i " " *"' 5^^"?
5s1--- '^-. ^
,0.13
\^^f<»%\*;'
1.73
^0.06_^
"5?^ ,v-^ "»/•*:
'•'^^-"^
j, ' • "* < « y^
-1.86
2.57
tX ^* !/;;V'! » " 's" "
' ,xl--/-'v'"--' •*• •. ">'
-0.64
0.71
-0.45 	
*''?'"l>r:lv!:?\;
0.51
wf~".' ^•~*v.-^>v".~r.^-.;~~<.
^ ' ^ ^ ^
S-\\>"s X ' y '« ^••.*".,X ->,f.
,-J '-':'' -, \'' ».<,""

control limit
control limit

-------
..... .. ,
ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997 11/20
Radium-226
Lab
FN
GN
GQ
HK
HL
HP
I
ID

Res. 1 Res. 2
5.4
7.3
5.3
6.0
5.8
6.5
6.8
6.3

5.3
6.9
5.7
5.9
5.9
6.1
6.7
6.8

Res. 3
5.6
7.1
4.8
5.8
6.2
5.9
7.0
5.7

Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
0.15
0.20
0.45
0.10
0.21
0.31
0.15
0.55

0.197
0.263
0.591
0.131
0.263
0.394
0.197
0.722

5.43
7.10
5.27
5.90
5.97
6.17
6.83
6.27
.-*.«•. •••.•••••.v ••
-0.99
2.21
-1.32
-0.10
0.03
0.42
1.70
0.61

-0.90
2.31
-1.22
0.00
0.13
0.51
1.80
0.71

.jjj'; ;^' ;' rl^C-i^HS^^ * V:^\^f d^^'C:*?0. %" -\~ ^-fJ^S^^VXXf''-1-,^^^':^1'1
'x«ji$4xi"«
" ^-J^S'J.S
,JG;!':^\
	 „_ v.. .. '" ""


,^x
^<>^^Xx?S'>
"" \v ^i vj^V^^-* .T'X-V'^O
^^^^%^|Jx^^^
s^"J\ X N< < " \ %*\-5
^Xs ., , X^5% N- ^ ^ ^v."^ ^

^^V,« . *" " ^""^VN:^
^fft
^V^^j*
^^§
-.•• \ > -.-z ~~


^"o'^V
j3^nj*^ ^ ^ -.-"
X^-v^^^^^x'-'1' v$ ^
^^V^-S.^
> s -.' s ^ J X


S«;v^4 - j"\ ^ o^\\ x s
X;\^vi V X<-;\-V-X^
..%.,.... ••^•> ,, L ^ •• ^ % C
;^^;V.; °VS L" ^^^rk'



" " -
WJ.^ •> ^s

:;vVv---'\
"*



1 ' ' "" - ,!"v\x-x;
% \ * ^ "tv "X """"^ ^ \ v"1* Ss
\ ^ "• -L ^ I v
-"" ^ ^ -'.'• ^ ^ s S <•


' \ ^ \'% ^^ %
,;^x--x"Vx,^"5-s
>: >*'; -;l;rV<,v''
^>"!^^tt
^ •• V^vv^^s.'-X^ Sft"11- f


-• ^""-\< ""^^ "-'' '
% ' v. ^XV * V
./-o^:^,:
- -\V-! -f-s,
' VVx^^r^*; ;
" * " s •• «. \ -. - ••


- 5s *^XX^\ **
tKN* V v • «* ;4i ^ '^v\r ^^^^^^Si^^^X^ *\ os-" * *s -s * , "' -^ *°* V ^\;^^xv^^xi5\'C%\ vV^0"t: * -^
' . • ^- , ,
-. *IJr^ ! •. " .. t^- C*'
"*"^ V» s1-"1'"-.
JS
JK
JY
K
KH
KL
'K^lf
L
•4 ^ V sXv" «" O •* ^^^ o <.
^v<\ -.•. \;t-.<,<6.2 	
^ •,*•• S-A\^-
^ ». , "*'1%/'
v\- ss •.*
7.2
6.8
5.2
5.2
5.3
7.4
\s ^ ^ % ^ ^ 1.**^ A ^^ *
VS^\ ?*^\\ x>v>% -.' ^ *
\s % "-V""- %1* ^v. v\ l*vX
6.9
7.0
7.3
5.5
5.6
7.5
If^.iSPIgf^
5.6
. ^
La^H-x u'X ,>, vV-j^x- °-r „«;•>;<
- > x^v : ^vt.sxxifv:*^^ v*v-:te
I Jnfs\X.->y
LT
LZ
_M 	
WjjrwT^^?


N
^NAlfr
NH
_NJ^_
• NKV^';:
NO
NT
0
OB
OF
Towf^;.
^QSSft)
OX
V v' ; x "X ^ "v^-1-, "CiVv
^\^^^V\ ^^C^S JAs'Vj. ^s
	 6.6 	
6.0
,_J6.9 	
s"S^t*** ^|^S!^^^Kx7^


_^5.7 ^_^
Sl^^i?
5.4
7.4
f^^^t^f :-t
""" ^;i '*""""*
6.2
5.5
5.4
4.3
r^Vs^v'*^'^'^^1^ ^T^JS?
\^v^^!s VXv,,^\x
;>$r:5fel^
6.2"^
"tl^p^^^^^lf
p—*""""
PB
PG
• a No
4.3
5.9
6.0
7.1
6.0
6.9
^s^T^o


5.9
^v;x>;
xc^s
5.8
9.2
^^
IS
6.0
6.5
5.8
4.3
^^5?
-S^ ; N
-xft^T
6.3
il!t
2.4
6.1
7.1
5.8
<• •wyr*"\x^3V~-<^**vw**s
>,WS*«M>CS«* «;•«•>
r-^V^Vx-.,*^
.s?^^ , »Vx"\ t-\ ,
;~f i-^sV^->
7.Y
6.1
__M_7.2
•^>^i r^^^r--^^ ^v


6.2
"t>m?&!>!$ifyp-iz
?;! ytf& •*&*$$$&
	 5.1
6^
^^^!^P"
e!7
5.8
6.4
5.4
4.7
p?;^r---;v
y-^o s ^
^ -.,« \ "" *X ''•.'' v

0.15
0.20
1.07
0.17
0.15
1.13
^>-C""x^::T!?-;-l ,"
s , , ' ' ' ,-x
0.31
;^- >V."\V-/
^rv^:-^^-y.
0.55
0.06
0.17
\ % S^N^ v ".. Ss ^ ^
^ -" V - ^
^^^^^'.^\ " O s w^«
0.25
•* \* ^^wvx^ ;\ ^vy**.* ^^^v
; V ^\\ s -; ^ v ; ^ \; \ 0 " " ,-N
0.35
^( 	 1.33 _^
• -°t '"•' ~\ '" • N '-'\
0.32
0.20
0.55
0.23
	 	 0.23 ^ ^
V- 0
^fc^\^^-«v ,-,v-^
A^45sfe,^ ^ ^x>,VS; x "" x>>" ' " >", X
^_JU
"S^^^K^s-v^
3.9
6.0
6.3
data submitted
0 s Insufficient data x =
0.10
\ V^*V """'''C^ %
1.00
0.10
0.57
f- *" <"•
""•- - ^
, \%* ^ \\
0.197
0.263
1.720
0.197
0.197
1.595
^-- .•Xf-SXX-X
0.394
s s \\* %\--O^v-.OsO
s *• % S '"" *N V "" ^^ *
*k %•-% Xs ^ "• « % %
7.03
6.80
6.13
5.30
5.43
6.80_
V" ^*\*""^,1 ;"-"":, '*
5.53
™ "7T.TXrT;r: -V~"S " ~T?5?S-; >'
\%\, ; x-
0.722
0.066
0.197



0.328
*SW"'<*\% -vvX^1
•• w s^
0.459
2.345

0.394
0.263
0.656
0.263
0.263
>"'•"
,,>;\^' s-x
0.131
--::--^
1.470
0.131
0.722
«;, , : - {\x1\^ .^K-V-
7.13
6.03
7.00



	 5.93^
^s« , -;v -T .;^f^;
5.43
7.73
T;; ^*YV7 -T-! -T7
6.33
6.00
6.13
5.53
4.43
rsco -~" ^.Tr>^p
^^V^44|fj
,,•>, i»-"~>v, \ ,/,-s.Wixv
6.20
,-"^ f=Vx-x v
* - , -;^;^ ^ s v
^ SH v, AS % *•
2.08
1.64
0.35
-1.25
-0.99
_JL64__
TT^;%r,^
_-OJJO_^
tp^T^^J^
^x «-„ , x^-'^i^t^,;
2.28
0.16
2.02 ^
• -^x-Cx\'Vs \':^''^v%


-0.03
s *• o ^ v s "• \ "
- i "- \: * • v

2.18
1.73
0.45
-1.15
-0.90
_1:73__ 	
• \^A^?^rx-
-0.71
^~^:oF;:
^fe\;;»;;'
2.37
0.26
2.12
" - " % ^V^ * •. "•


0.06
^v^WS?'^ *-*"".->
-0.99
3.43
v,^^, sv^ ^™ ^^-v,.™
s X' ••-' •• ^ "\ "•
0.74
0.10
0.35
-0.80
-2.92
™^^T^:^jj
?^^^^$
"^0.48
- , , " f~V: ,xKx;^ * ^ A;-^S:V SiXs^V^
<:, ;Vj:vvX.v%£Ni :> _v^^-
3.53
6.00
6.47
TAG SYMBOLS
5 Determined to be an
outlier
-4.65
0.10
0.99
ft s Above
U = Below
-0.90
3.53 ft
s",~ ' •- ,\
0.83
0.19
0.45
-0.71
_-2.82
*" N ••' s-X*,£.1'X* /-•^\0,
s t"^" ^. V^^*--.\^"s^"s
6.58
:^I^L'?Vr
-4.55 Ji
0.19
1.09
control limit
control limit

-------
12/20 ESD-LV Performance Evaluation: Uranium-Radium
Radium-226
Lab Res. 1
Res. 2 Res. 3
in Water, 14-Feb-1997
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known). Tag
•••Ot^^^&^^^^^^-^^^^^^^^^'iS^ii^ -'.--f"- '
^,'^tf^^^^'^^^^^^^^f^^f 9,^^^'A',t^^'''r', " * """"
J^-i
PW
PX
Q
QM
QQ
QII->-
QX
QZ
R
RD
xH$il'?
:' . , ^ /*•"
HO""'
RK
^BJ?-''
:'|||i?x'
~B3T'5
RZ
S
sc
SD
SF
SI
"'- gj..',\-

SM

fiM^St -" * ""
^ ^^\-.--&
ss
sx
sz
T
TD
• *ttg* •
^lJttx<
- 'ITlj -

TN
TQ
?*TS^"
...u 1
•"UB^-i
UP
UQ

_s
VH
VI
j^'i ',-• ;'-! 2B» Ql">^*
7.3
6.4
7.6
6.1
	 3.3_
,*>?!?' '' XSiaEJ*^
ff 'I ' ^*^?:?"SV ^
6.3
6.1
4.8
6.9
*>::.'.>' -^S''^'''"
•\'"t '/' T ' J ^ .' *'^
.-- '/'_,, '/-*
/ . P.
/V;' ii0^-
5.8
6.2
5.2
5.8
5.2
7.8 _
>;?\* V^v* .;'•"••

6.5
-. \ ^ ^ •• - ^%
;-. % V" ' ^ ••'• "" V * / ;
^ •*•• ^ '•''v.iv* ^ ^ , -y^
4.9
6.3
5.6
5.9
... i?..
^.V/A-S- ' .--" r v^-,
\; y: ^'^A^:»V?<
^ " ' ^ 1C ^ * ••^•'••''w^

4.2
	 _6/7_
!,V; ;x^ "* s ' '
7^2
6.1
"+ ^ * ^^*V>\*
s ' |vO';'V^ •»
6.0
6.4
^^iBfeft^'^'^,
5.4
6.3
6.0
6.2
3.6 _ __
?"£: ''rii'^i^''0*'^
6.2
6.0
4.4
7.4 	
, ^VtK^v - v{;^-%j< '
, xC. ^'^'^^Y'--™ '^v, ' ; ''^ c.
^\;"A .';''>;;'^v'';> ;^y.
_^6.8
A >-^" v°l;^'s,s; %
'7\. '%vfr*rtF/"s'-.^
^4fei^^':
5.6
6.0
5.4
4.7
5.8
_J.9-m _
' v. 'T' *-^k'^ ~'!??^fv;

5.1
<*VX '* '5" "X '" sv* vsv-?T^ ^
^ ^Ati^-A ^"C' ''^^JSL'^'v^
^s^/^vX^ X"X\'\1,^ ^••^••'V^/1'
5.1
6.7
. 4.5
5.9
,.„,. H.~~~.
' ' ^f -A ',vw^''::^^<' -?"\ \ \
'?r^|^^:^r?1>?
'^ %<*s ! ^ ]; ^ .-. v ' ^ ^o""' , V ;

4.0
	 rj8.6_^^
ic ';~s'|^| ^l;?^,".^
„ J_,,6.6:^
5.7
6.3
7.1
6.3
. 3;1,_
fsiisfej?
7.5
5.6
4.4
6.7
?i'^?"5/'
'." ' ..*-
*-'-, --
J-.8,
»<
5.7
6.2
5.3
4.3
5.1
7\6, .,
^{-''M^

3.9
V A « " 'v ""
fvj?^'
•• ^'f,''.
5.6
6.7
6.0
5.7
4.3
'.v^-.-.xL-/ "1.,
^:;v3^
•'"•'!. *

4.5
6.5
fP^i!
,AI~
"VAv^
7.4
, .5,'4

;:^^
6.7
6.9
• 3 No data submitted
0 =
Jn^ifficifint
data
X S
.'-4^4*80' -•:,
1.02
0.06
0.82
0.10
0.21
Sk*iOi85-"-'
0.72
0.26
0.23
0.36
'; •«.'• '• - •

*
1.10
" \

' --:o;46/'
0.10
0.12
0.10
0.78
0.38
0.21
" 'it.''"'5 " '•

1.30
"SvX X'% ',-." y'"~f J
}<*'fJ*'^/ ^vs''1-.X "
''o ^^ / '^ % Xs% AV
0.36
0.23
0.78
0.12
0.12
^ "*••••••' '"'• \A -' 1,'
^V^"'*/' '^t::::^ ^ °


0.25
0. 10
*V; -."•' "•"•••• -•"•••
0.10
'•' '•*. '>. " - ' '
0.15
0.36

.^'*s»Atf: "
0.40
0.26
,',,.v, , '-,.',,"- '' *
: di596;f"-r •~;*t
1.470
0.066
1.095
0.131
0.263
V'i.4t01*' - -.>:-" '
0.853
0.328
0.263
0.459
'- ' ,- -' • ,4'.;:-
f\'\j
,,'>**
1.845
' .

0.501
0.131
0.131
0.131
0.984
0.459
0.263
.'.-,, -tx~r^ ? ">>;^'. '

2.345
mj J-- •• •• ..f^i; --^ •:•-•• v *«
-. "" tv* * "X ..•• \-.-?
^ ^ ,* j. ^\X~-V *> v ,"'
0.459
0.263
0.984
0.131
0.131
h .• .• .... v .., .- .-
vt: ' •• s ^ '
v ""

0.328
0.131

0.131
- - - - _ . ^-\v 0 -
0.197
0.459

'" K'ft?i
0.459
0.328
;>,,- ;^ -,-<;
i2,6d ;
6.13
6.33
6.90
6.20
3.53
iioo ;;
6.67
5.90
4.53
7.00
- ",,/.,*--
„ < *'A ^
, "
6.73


12;:40;Y '
5.70
6.13
5.30
4.93
5.37
7.73 _
; '.^;, f\. »'

5.17
ff /-V ^ "•- ^ %s
"•V .s "*• -. C<
' V # **?*•,
5.20
6.57
5.37
5.83
4.37
t
t" " ^ •.""


4.23
6.60
' ' v~""
6.60
Oy- .- •
7.37
5.80

1173
6.23
6.70
TAG SYMBOLS
Determined to be an outlier
^ s*"*. r\l!\;;
;-32;04' -V?«s
0.35
0.74
1.83
0.48
-4.65
^•<''i8J5Ts-'''<'"'^'
1.38
-0.10
-2.73
2.02
- ;„); -., - ,.[.-•:• ^ \

.,-''•« .- '•,
1.51
., ,,vxV: ' %,,

' ,12,41- .-;'
-0.48
0.35
-1.25
-1.96
-1.12
3.43
*i'«' .'>-"sWj-'-"'V-

-1.51
w M ^ -.^^ '^ •••.",•.< •V-^X
s ^^V^J*^ "" "v " « S 'V
" ''"' •.„ j- \-1 "* "-i' v
-1.44
1.19
-1.12
-0.22
-3.05
/> .- % ' .t-.ttv.-.-..-.-.-.-
\ >SV' ^ V^ s * *


-3.30
».J^L.^.
.-\ ;" - '_ ^ -„ ','
	 1.25
t- -.,-- '.^SJvv*'™^
2.73
-0.29

•:-" 'ii is- '-••••
0.54
1.44
tt & Above
Ii = Below
' : ^ rt's?s ^X^ W^ •• A
!fcfct4;V^' (>
0.45
0.83
1.92
0.58
-4.55 Ji
iy^SSS
1.48
0.00
-2.63
2.12
-,\V' Is * *" v *s
' J ^ ~"\ "
\\;
-0.38
0.45
-1.15
-1.86
-1.03
3.53 ^ fT
 "\ ^ "-."I s
^J^AjS V ^^ s hj, &*''_
•:•* * -. ^ ?'J' z •• '<
-1.35
1.28
-1.03
-0.13
-2.95
•• f > "•
... _ .. j.. ^ v ' ^'s- ;•
/" x , x « , ,/
/ ^ ™

-3.21 U
^1.35 	 __
-- ^- ^\ > »X'
^1.35 __„ ,
^f '^S ~- V^ :*-** ."'.
2.82
-0.19

'll^S"!^'-x'- "
0.64
1.54
control limit
control limit

-------
ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997 13
Radium-226

Lab Res. 1 Res. 2
«•» •*,* ON0^ *\>" v *s '^ '- JS*'N
•^n,' f T-V.f;*s\?;V";*''"Vr !-vJ\v**%Vt^
"WC •"-' "^>:^N • & ^^j&y.*
!'-WCt~ ~'^ ' sju£'J?'' • N- s^ xS^f^jso.,1?*,
% \ ^^wi"1 -, ^ X> wC -A i^\^ i "* * \ •'^I'^^.V ts \\\
WH 5.3 5.3


Exper. Rng anal
Res. 3 Sigma (R + SR)
«" * % " N'\ ^ " " S * N ,s -. -. " V ^ ' N-*
P8^! " *V^^ \"^ \v" -"- \ iv- \" *^S X
f i;^:"'-' ' .--> , "\ !;x !;-%
'-;!•• \ '"-«r '- -^::^ " '"'' ^'>"-nvV-.

6^1 0.46 0.525


Normalized deviation
Average (grand-avg) (known)
\ - •••: * ,- *• .."i"* O ' •"* N ' 1 *' - S?*s -'•'•'.
%"** *^ ^-X"t-s?^ \\-^\^i^\*"irvwV ^^^"^I **¥^t*%
' "• '*'! V :% !^ \V;:^^W:<:; cS "lx^'^
' i- -:f5~xioivv"-1 ' ^ '- -N ^'x U ^'^4'v^1 :.~,-^"^t
•. '"* "• ^ v i>\\ O<, * •• %-- ^ ^X % "X ^ ^ \ % x sv \S^V'?'''!;S
5.57 -0.74 -0.64

/20


Tag
v
, c. •
!s'\? ''

X^*VN^S ^'*1'N


^^^-;Mf^y^* ^tfx^ .^Vylyx^tV-'l^- *; .»-^.;j, V'V ~-!^;"V^ *\C^: J r C&^K* >••'-' •
WJ 6.2 5.9
WO 6.1 5.7
If^Ll^^T^^^
* lTrJtwv 'b'X***1''':'*w f^ v -.X"*.1^ t \ ^-A i*^*!?^1^" ^"Sj
-.- >. y- "< - V^y^ o£ X^%% ^^^'"^^Xvv
. ^tf jfl %, \V* ^-^'v ""V\ " s s\ * ' vsy."1- "l! ^ v>V
^ ^ " -x ;^ ^^^vv\\^^3^ * ^x *A
^^CX' v f ^N^^llj&*^;^!l^(jV
x "s" "" "f.o""" " £3
XA 4^ ^ 7.3
/xc*\ v^^^c^v?^^ ^*T
VY; ;^v;f -"^r^rf^V *
5.8 0.21 0.263 5.97 0.03 0.13
5.5 0.31 0.394
^ss^rc^r^tp^T* r^ ^" j j*s* v*Mtw ™ ^ ^ * - *
t^s ;s^v*\s*0^!j.^ot-;^^-.OC' o^ ^^ ^x ^-,.^,.;-\v ^^lJ v - s s_
^Uv^p - " ~ ; - ' ' ' % .%' * -" "-' "V ^% *^ 's'; - ; ' : :;
^•^\)i !$"%.;••' Vt x' *-s - '• •" * , : , ™ A - , '- •' \ •
%§/t$ * && * '•• 0.10- •> -% -d»131.
6.9 0^21 0.263
4.9 1.45 2.345
^X'Af11^, , ;'"-7,vr \'"^ -
V«"- <*';>,*: , ^ " " x % •
5.77 -0.35 -0.26
0 , A ^ ^A. ^Av. s s, — ^ v.s s ^, *^^r^^ . .^^"y-^^^v^x;!
*• ^'"^ --XO^\ NO* %-"V<-^ ".^O-^^O ^ ^ v-'""'\ % ^
;^C'rv' Vx:<~ ^^^v^;^5>x,^>-\»1\ \lx-
^ ; •.••v. >. v Ox ^ 0 ^•j >. ^ * v" 1 v \ "-v t '"'• s* s •- --s ^^
•• "* % '•'' t^ (kf\ -.0 N -, ^ •• T ftfi^ " ^^\v * ^ *y r rt ^
7.07 2.15 2.25
5.63 -0.61 -0.51
'. -1-" '\^^^^S'^\VV~ ' ^-y:
:,>-%v \^^-'n^^;*X;:Xj^j-;;\ , :^-

\™ , ^™
11 \w ^
^--Xj,-
i! '- "
;' -X


>*'• ,•-
' •- -
Data sorted by Laboratory Average
Average Tag
2.93 x
3.53 11
3.53 . 11
4.23 U
4.37
4.43
4.53
4.93
4.93
5.17
5.20
5.20
5.20
5.23
5.27
5.27
5.30
5.30
5.30
5.37
5.37
5.37
5.43
5.43
5.43
5.50
•5.53
5.53
• s No data submitted
0 s Insufficient data
Lab Average Tag
AU 5.57
QQ 5.57
P 5.63
TN 5.67
TD 5.67
OF 5.67
R 5.67
SD 5.70
DT 5.70
SM 5.73
SS .5.77
CC 5.80
AP 5.83
A 5.87
GQ 5.90
CJ 5.90
K 5.93
AH 5.93
SC 5.93
SZ 5.97
SF 5.97
BH 5.97
NH 6.00
KH 6.00
FN 6.03
AW 6.07
OB 6.07
L 6.13
TAG SYMBOLS
Lab Average Tag
WH 6.13
EB 6.13
XA 6.13
EO 6.13
CE 6.17
AK 6.17
AE 6.20
RZ 6.20
AF 6.20
BK 6.23
WO 6.23
UQ 6.23
T 6.27
BM 6.27
QZ 6.33
HK 6.33
N 6.47
DE 6.57
CG 6.60
WJ 6.60
HL 6.67
CS 6.70
PB 6.73
NT 6.73
LZ 6.77
BA 6.80
AZ 6.80
8 6.80
ft 3 Above control
x = Determined to be an outlier & 3 Below control
Lab
PW
O
JY
BO
HP
ER
QM
OX
BN
VH
C
AL
ID
EL
PX
NO
PG
sx
u
TQ
OX
VI
RK
CA
BC
KL
JX
DB
limit
limit

-------
14/20  ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997
Radium-226
Average
             Tag
  Data sorted by Laboratory Average
Lab |  Average	Tag	Lab | Average
                            Tag
                             Lab
   6.83
   6.90
   7.00
   7.00
   7.03
   7.07
                       I
                       Q
                       RD
                       M
                       JS
                       X
         7.10
         7.13
         7.23
         7.37
         7.73
         7.73
ir
tr
GN
LT
DZ
UP
SI
NJ
 9.90
10.67
11.73
12.40
13.00
22.60
x
x
X
X
X
X
WX
AJ
VA
RX
QU
PV
% responding labs
10-
                                  Frequency distribution
   > responding labs
                         ^    -2            6      '      +2      '      ^
                     Normalized deviation of the mean from the known value
                                Frequency distribution
 104

  o
                                  llTHlifJl
     -6
                 -4-20            +2            +4
                   Normalized deviation of the mean from the grand average
 • = No data submitted
 0 s Insufficient data
                                   TAG SYMBOLS
                             x = Determined to be an outlier
                                           ft = Above control limit
                                           U = Below control limit

-------
        ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997   15/20
Radium-228                         Statistical Summary                      149 Participants
The known value of this nuclide is 8.2 pCi/1 with an expected precision of 2.1; the control limits
are 4.6 to 11.8; the warning regions are 4.6 to 5.8 and 10.6 to 11.8
61(40.9 %) Failed to respond .
7(4.7 %) Outliers	
3(2.O %) Out of control	
     but not an outlier


         Statistic
                i 73(49.0 %) Within all limits
Respondents
5(3.4 %) 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
     10.26
     13.37
    178.74
    130.36
     25.07
      0.15
      8.25
      0.61
      0.00
 Grand Avg 8.08
             1.40
             1.97
            17.36
            -1.50
            -0.09
             8.23
             0.41
             0.02
1O(11.4 %) Mora than 3 norm. S.D. «%
5(5.7 %) Between 2 and 3 norm. S.D. *
             56(63.6 %) Within 1 norm. S.D.
                           of known value
     17(19.3 %) Between 1 and 2 norm. S.D.

-------
167
20 ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997
Radium-228
Lab
A
AE
AT
AH
AJ
AK
AL
AP
A*^A
AIv
•;#&
AW
AZ
BA
L:Ba
BH
BK
BM
^ *j^aiv^
~BN*
BO
C
CA
CC
CE
CG
CJ

-:CM
cs
•• jx^yt
•- t/JJt
M 'utii*'*' *
DB
DE

Res. 1
8.9
7.9
9.4
6.6
5.1
8.7
8.6
3.5
'A" ^ ^ •."'**" ' v " •• "••* " A^-g&sjiix1' ' .. s
|^T^?p^^%^V^;
7.5
6.9
7.3
10.2
9.3
9.1
8.7
"/•"^V" ;v ''s ' *"•'*/•
,'r~~? \ "-'/d''"''"'-,- --i
9.1
;^ v/i•••$* s wi v--^^vg?
}V; :;\';\>-!'X"!' "«,'?•
?;'^0^^*P
6.3
9.0

'i»K^^^

DO
r_|-
IsJn
DT
DZ
E
EB
EL
EO
1 ict*.
^ •.- •. % v

W,'

*•*<" ,-V> V'^'-N' ! -*S
*-, ^ '/ 4 v*v';" ^:;_;^
A<€'W^
Res. 2 Res. 3
8.1
7.1
9.4
6.9
6.6
8.3
9.5
4.2
'/ % ^'*; •.''t t ""'< " w %'
','•/• '^^*»^!fe*'^^ ' ^?>*^
9.1
7.5
9.4
10.0
9.6
8.6
8.4
r^^isr^v^'V''^?^" 'i5*-''
^te^* -k;T:'l;f ^'^i*S
10.2
« s-^.s^ s^ i'
5i?fe'f '">\'v
ii$i
^ ^^'1-
c* /- ^,",
• s No data submitted
0 s
^ Insufficient
data
X =
Exper. Rnganal Normalized deviation
Sigma (R
0.49
0.44
0.06
0.25
0.90
0.26
0.55
0.70
s S " -. ° " ^ v^ -- "
^ *• , i / A '' •< i
' j
0.70
0.21
0.38
%v' ' •' < -
0.57
0.21
0.21
.. < ; fS ''< ' s ^ , •-•• o- A
"I \vlvv'* '' '; *••" ^ *• -
0.87
0.35
1.06
0.15
0.21
0.55
0.30
^S^V^P" '"'* X ->
tV- -s-':-'-Vj-"V' ' - -'
0,55
?,^> f^% ^ ? > ^ • — , ^ •• \
IsW-i':," - -
. V*"'! >; '\.-;v,
0.25
0.45
;y ^'-.v?\ ^. ^s


i-1' r ^V ;-
yv"i'f;''_ ''" '
"*"'*' ^'t '• <• : '~~
0.21
0.30
0.10
0.55
1.37
0.52
^ -•*, ss + <

^'v\'";, ''
-." O s '
+ SR) Average (grand-avg) (known) Tag
0.253
0.225
0.028
0.141
0.450
0.141
0.281
0.394



0.394
0.113
0.197

0.309
0.113
0.113


0.450
0.169
0.591
0.084
0.113
0.309
0.169


0.309



0.141
0.253





.,
0.113
0.169
0.056
0.281
0.703
0.253


„

8.67
7.60
9.37
6.63
5.57
8.40
9.23
4.20
* " v
.;- / "*' ,- '-, "-•'' '' "•--

8.07
6.63
8.27

8.97
8.27
8.77
•> •••. •., * 1 I j S * s«.^
* ' f'"" '^^' "
8.10
7.30
8.43
10.17
9.37
9.13
8.40
,ti'-\ - *"- X. " \-*?,!~- , s '-
-!" - '"• ,v , ""' '*' ', ',
9.63
•• % % % t ;s ^ v
,: '' • -"';-<% '
'.
6.53
9.47



; \ - -, -"' •

t •. sS ' V •-
7.87
7.40
5.30
8.73
9.37
7.60


s "" s

TAG SYMBOLS
Determined to
be an
outlier
0.49
-0.39
1.06
-1.19
-2.07
0.27
0.95
-3.20
s \ % * •. ""

- - J'-:, ,}
-o.oi
-1.19
0.16
''' J s ',
0.73
0.16
0.57
' < s* * 1 ' 2 "^ ^ % '*•* * •• V
-.' * '"^-;>v- s '-"
0.02
-0.64
0.29
1.72
1.06
0.87
0.27
-s 7>"/x" "*''
\ *,-,_'; - V! ,' r
1.28
- , v- x-- ; ys v
\ „ ', v*""x" •;
~'' vv'. ,:',-'
-1.27
1.15

r '' f f ^ •• A \ ' A. ""

, ', **^' /.,
f .- ^ ^ ^ ,^.
'; \\ ' '.-., '•' '''"'-.' '"
-0.17
-0.56
-2.29
0.54
1.06
-0.39
'•' *!i ' r*-\
\'- '<.*•' *'f, '""'(
•' " "1;~ * '•"'
1 "• s %N ^^
It = Above
II = Below
0.38
-0.49
0.96
-1.29
-2.17
0.16
0.85
-3.30 fl
"• f<. ""\"' j.
*C5"^iv\.*'">
'-"'*A\ - -{••', r
-0.11
-1.29
0.05
\rs s vs '^
0.63
0.05
0.47 .
' t^' ''Vib *H \. ' v*s<"v' ••''':*''(>s/-:
/-; ^ ; '-^-l'* v'\'
-0.08
-0.74
0.19
1.62
0.96
0.77
0.16
." T" , , ,- , ».'!*"
:' -"'-'' ' '- ,
1.18
^V0 ^ * ^ ^% ^ A v
,'',;, '*' •
.... '-« ^' '* -
-1.37
1.04

<-• 'j\ '•>'/

_.;• -, ,'»"' "-, *^"J-'
" " '' -' , ' «''"',
r, ',,'-" . ,. ,x,, ,-""
-0.27
-0.66
-2.39
0.44
0.96
-0.49
,: '~v ,'. .' • "•
;-:^v,-:;=;?;4'V-
;^;^-;, vU-->
---x :;";'-'- ;- » ' '.
control limit
control limit

-------
          ESD-LV Performance Evaluation:  Uranium-Radium in Water, 14-Feb-1997   17/20
 Radium-228
 Lab
        Res.!
                              Exper.   Rug anal             Normalized deviation
        Res. 2      Res. 3      Sigma   (R + SR)   Average  (grand-avg)  (known) Tag
                                                     0.309
                                                     0.113
                                                     0.197
                                                     0.084
                                                     0.169
                                                     0.056
                                                     0.647
                                                     0.225
                     £> ^
                     •#fe&£
            9.4        8.9        8.9
               -~~w. -, >?., -^^ „—,„ -
                           SiS-^x^vxjxt-s-'xs- x-  -    - ,-!•--- Y-^^-^-x-' , x--,-' -V -   '--- v--<-^i.-,- '$**."?>• v%"%'.,, "„" vsiv*1? X  -- •--
                           $dj^&&-^ - -o= 'V^-'^A'C -:\-/ - \.\C'.,,;^:^ lv^^",'-"-^?::3.'!*^
                                          0.29      0.141        9.01       0.82       0.11
                                                           *•**«•< S*^S % s - *\>^
LH
LT
6.7
                      7.1
                                  5.5
 M- ,.,_,^J£^__ J^L—^...I;0— -
 TU| \t  \ V . C^, v4 * -i ^ -.v"A* *"^ * ^ ^>i;i*^ V^1- ^"^ •> ^ •* x y--0- <#-x" %^vj, ^ !!o
 aM**.^ \,^ ^-f^i^^ >&&&£ ^^ *l1^SSS^5*4s^^^\^\ s s
 N         7.2        8.1        7.6
1 NA'T"ir:)^^^SH1l^|^iM;lISI^-^
 ji^jm  •.  ...>,'!;,''  ""xv .  ... ^ x^ '^ ^  ^ .*. \ .  ^% s ^.^ -."-.
                                          0.83

                                          0.61

                                          0.45

                                          > :'VC'
                                          0.35

                                          0.57
                                          0.31
                                          0.75
0.450

0.338

0.253


0.169
   .. ' "\

0.309
0.169
0.422
                                                       6.43       -1.36       -1.46
                                                    -•-  --;; ^;^:-*^A---y-;»^r'-  -•**
;O^^^^^Jf|3g^§^l2;5-fe-; ON ^8;31 ^;"7.98»;.,
^4^iur^.i*'v^j'^Vfs"^'s -x^' \  • ;'-• "xv  v-- - --~ -!x-- -!';- \ ;x-"'     , ;'   ' -  -,'
-vUJML^^Vv^. 7-> «SMts*^*1*^^l^; -X!--8 H« -' - <-' - v ^ :>- ;x^-t - - ;< \ -  ,    , -x: ^
OX
 <.;» N*;\^\ \^?* S^Y ^^AW -.^v •• «^ * -L>*

8^4	8^5     '"8.4
                                           0.06
0.028
                                                                  8.43
PB
           9.6
           9.5
                                 9.8
                                            0.15
                                         0.084
              9.63
                                                                             0.29
   1.28^
"»-/---;- i--1-----^
                                                                            0.19
1.18
                                                                                               N"-«
                                                                                                -• -
 • = No data submitted
 0 = Insufficient data
                                         TAG SYMBOLS
                                 x  s Determined to be an outlier
                                                                ft = Above control limit
                                                                
-------
18/20   ESD-LV Performance Evaluation: Uranium-Radium in Water,  14-Feb-1997
Radium-228
Lab
Res. 1
                                        Exper.   Rng anal
                  Res. 2     Res. 3     Sigma   (R + SR)    Average
                                                                       Normalized deviation
                                                                       (grand-avg)  (known) Tag
                                           0.141
                                             :';
                                           0.253
                                            -t-7 "'
                                           0.647
RD
8.1
8.3
0.35
•jtfjt^*'^^^ ^l^K^-vjT' s^y^x'-v^T'1,--;" "
Wl I \ -'<<; £*v?s$&.\ -V^$C^C> ?: ^S^J* •*-•,'    '
**** .,.';--'>  ..  AV'-,, . 'X J^-LV.'>*>(,-:-'  -.*  -xsSu;*
                                                   0.478
                                                     's '1*'
                                                   0.197
                                                        <.


                                                   0.619
                                                   0.338
                                                   0.056
                                                   0.056
                                                   0.338
                                                   0.113
                                                   0.338
                                                   0.169
                                                     A  ""  ' \
                                                   0.169
                                                   ,  ,' ,V; *-:'
                                                   0.703
                                                   0.816
                                                   0.225
                                                   0.169
                                                   0.460'
                                                    0.478
                                                    0.028

                                                    0.225
                                                      \

                                                    0.169
                                                    0.028
                                                    0.675
                                                    0.506
                                                                8.07

                                                               12.17
                                                               **-.'   ^

                                                                9.20
                                                                 8.33
                                                                 't'' -

                                                                 8.33
                                                                 7.50
                                                                 7.70
                                                                 7.90
                                                                 9.67
                                                                 7.40
                                                                 7.20
                                                                 5.67

                                                                 7.30

                                                                 7.67
                                                                 5.73
                                                                 8.70
                                                                 8.23
                                                                13.33
                                                                 8.03
                                                                 8.63

                                                                 7.27
                                                                 -->"•<"",

                                                                 9.13
                                                                 8.47
                                                                10.87
                                                                 8.47
                                                                          -0.01
                                                                           3.37
                                                                          I <•   ,' r <
                                                                         ?' - *  -v ,„
                                                                             -93
                                                                                     -0.11
                                                                                      3.27    IT
                                                                                   ", x ^•<*sS'"  •..'-' '" ;:
                                                                                   t"v-  < V-%X!. r *<--
                                                                                   •-;^;»  v,t.* - -
                                                                                   , % ^&,> %•%.'•
                                                                                   • j  ••••'•.  f- V.** ™
                                                                                      0.82
0.21

0.21
                                                                              0.11
                                                                             ;•> •«""?;
                                                                             V? -'- ";
                                                                              oil
                                                                           -0.48
                                                                           -0.31
                                                                           -0.15
                                                                            1.31
                                                                           -0.56
                                                                           -0.72
                                                                           -1.99

                                                                           -0.64
                                                                          *;i^y.^-
                                                                           -0.34
                                                                           -1.93
                                                                            0.51
                                                                            0.13
                                                                          !  434'
                                                                           -0.04
                                                                           0.46
                                                                             -0.58
                                                                             -0.41
                                                                             -0.25
                                                                              1.21
                                                                             -0.66
                                                                             -0.82
                                                                             -2.09
                                                                             -0.74
                                                                             -0.44
                                                                             -2.03
                                                                              0.41
                                                                              0.03
                                                                              4.23
                                                                           -0.67
                                                                          J(  ."X-y;-^

                                                                            6.87
                                                                            0.32
                                                                    2.30
                                                                    0.32
                                                                              -0.14
                                                                              0.36
                                                                              v :"v4%
                                                                              -0.77
                                                                           0.77
                                                                           0.22

                                                                            ', i''
                                                                           2.20
                                                                           0.22
 • s No data submitted
 0  = Insufficient data
                                         TAG SYMBOLS
                                  x s Determined to be an outlier
                                                                   ft s Above control limit
                                                                   •U ^ Below control limit

-------
20/20  ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1997
Radium-228
Average
Tag
        Data sorted by Laboratory Average
      Lab  Average      Tag       Lab  Average
                  Tag
                     Lab
  17.13
          QX
              20.57
OF
 85.23
105.77
x
x
RK
PV
 % responding labs
                   Frequency distribution
                                            LI|W
 % responding labs
                 -4            -2           0           +2          +4
                    Normalized deviation of the mean from the known value
                   Frequency distribution
                                                                  +6
 10
               -• _•• •IlillliilL •   .
                 5     •      J     T     ;2
     -6
-4           -2           0           +2
  Normalized deviation of the mean from the grand average
 • 3 No data submitted
0 = Insufficient data
                     TAG SYMBOLS
               x s Determined to be an outlier
                                              ft s Above control limit
                                              JJ = Below control limit

-------
ESD-LV Performance Evaluation: Uranium-Radium in Water, 14-Feb-1097 19
Radium-228

Lab Res. 1 Res. 2

• '#• iff* ^'^S?^-^' *r'?Af'*^%^*^^^^^3?yJ>**'' ^"T" '"*•
i ^i^i^^C^^^^^^f*^^^'^
;,S^!^4^S^^|;^^
JWH_ w8.2 __ w JW
WJ 9.6 11.5
">">& *S#
' •WRf"^'"-' i- ••' "" f^^'tX*'''* "''iS • *'","*-",'*
'*"' *' •• * ' ' < ?'<\ "'V« *•&! t.$;>^& K / " "^l? < *>'•< /|v^ l-*;
,.. Wfife- ii^i^^;^;,^^*^
• WSfejY^' ^'ft^^iV'l^'^V^i* <"
' ,, ^"-"l. ..••,'•••, ..0'*'% %'"'•' ' '*
jx 	 ^ ..H.-™-™.— 6~?»
v^'^f^-^^I^^V^
, ~^r!'* 't^-^^C^' 1-"^^||.-
'X' v' '"r-V'x't •';* ?<"; ,\ ;7'"/'^'-:

Exper. Rng anal
Res. 3 Sigma (R + SR)

£ %%f \; '$ > - ^ ', , ^"* ' " *' ' •••••••. ' •• ^ ^ f -.,
f^^{^\J \^,^': * \ , -- ^1^ ' •• -, ' \? '
y&y:"'^-^"' ';/."'' ' J ' ' "
8.2 0.69 0.338
9.7 1.07 0.534
^/rf"T"'SL«|% '", " '™tt ftA ' ~V>^>ftt'
^4?i>3i; x "5, - y»o" ^- ^UkZol
"f,'"i3 '?" "/V**"' '' ' ': ' !' ' >' ; ' '' "" '
^\v{*^%^ '^^ "" j ' ' °
f^fx'H^T; :'','/,. : '.,-.. '.. ' r ' ^ „" - '
^ si' V* ,'Vi "> !?; " "- ' : ''-*','" :'~ " - ," ;-?; ' :'.. * -
\ •> ^ •• ( j.
5 5 0.67 0.338
^^S;V-''-:" ": ' '' '""","::'^^r v
Sl:^ -,',;s' 'X ^ .•, -',,-,? - ,''"' ;'/-": /'\f ,'
"'-' *£ '-' '; ' '' ,'/ - •'; ,:;

Normalized deviation
Average (grand-avg) (known)

1 •• "" ""^ \ "" ' "^ \ / ^ " * A"- 't\ V •• ^ ' ' ^ %v '^ '-•• ^"'V
^ \ s -f -\ *v^*v ''v ^^-^ * ; ^ " ^ " - - \' v
— - ';'v,-- ^ '>>--"-':t;:%::;x';X
7.80 -0.23 -0.33
10.27 1.81 1.70
~- '" * i,'A*l " ,";X'. 4~|M» ••'*?' ™* A hfj"^
- ,! ,'"-,;,;,-;- '\VP "<*;*7">- ',.''. ^-^i"*;'
, " : ',' <<"»" '< "',%', -^ ,' -_ - ••*' -',-. „', '- '\
••V- ^x ^' ">\f ^ -. *'V ^^vV-^isX '\ v^^ ^ *'"' ^
. ^ ,; ^ ;>-^x- ^.,v; ;^"v3*:^tr^^f"H>x " . '• "\
" ?••''*• 't--- "t-"^'--'"^; :":cJ\cV'f"'","*V * !T
s •. -• -.-. -.' -. -1 *• "• ^ •• ^ "" w" -. •• s ^ CASss^i
6.27 -1.49 -1.59
U^ ' >r^^
; . ; " ; "-, . - " -v-'-.V' !'":~ •-
/20
^

Tag

' 9
v-s- *s
i- • '
!\-- ,'-- N
"
'^J VA ^t
' - ,-v"
•'\"^'!s;''
' >^"^^
;-V*; "t
"•!/ «-' -1;

V.,,,.,.™™,
r^*/,^
~4*'xV
«<-* ) ;-
Data sorted by Laboratory Average
Average Tag
2.97 x
3.27 x
3.77 Ji
4.20 li
5.30
5.57
5.67
5.73
6.23
6.27
6.43
6.53
6.63
6.63
6.67
7.10
7.10
7.13
7.20
7.27
7.30
7.30
7.40
7.40
7.40
7.43
7.47
7.50
• = No data submitted
0 = Insufficient data
Lab Average Tag
P 7.60
WO 7.60
FN 7.63
AP 7.63
E 7.67
AJ 7.70
SI 7.80
SX 7.87
GQ 7.90
X 8.03
LT 8.07
DB 8.07
AZ 8.10
AH 8.23
O 8.23
HP 8.23
GN 8.27
M 8.27
SF 8.33
U 8.33
SM 8.33
C 8.40
SD 8.40
HK 8.43
DZ 8.43
D3 8.47
I 8.47
RX 8.53
TAG SYMBOLS
Lab Average Tag
EO 8.63
AE 8.67
N 8.70
KH 8.73
SS . 8.77
RZ 8.97
WH 9.07
DT 9.13
S 9.13
TN 9.20
PW 9.23
AW 9.30
BO 9.37
T 9.37
JX 9.37
JS 9.43
BK 9.47
BA 9.60
RD 9.63
QZ 9.63
NT 9.67
CJ 9.80
AK 10.17
OX 10.27
. CA 10.27
UQ 10.87
VI 12.17 ft
NO 13.33 x
IT s Above control
x = Determined to be an outlier & s Below control
Lab
TQ
A
SZ
EB
BM
BH
L
UP
CG
QU
AL
K
EL
CE
AF
HL
DE
KL
PB
CS
SC
NJ
CC
WJ
JY
VH
Q
TD
limit
limit

-------