EPA
United States
Environmental Protection
Agency
Office of Research and
Development
Washington, DC 20460
EPA/600/R-97/067A
July 1997
Blind-A Performance
Evaluation Study
A Statistical Evaluation of
the April 15, 1997 Data
002RSL97.COV-067A
a
-------
Blind-A
Performance Evaluation Study
April 15, 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 Bllnd-A; April 15, 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 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.
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997 1/30
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.
-------
2/30 ESD-LV Performance Evaluation: Blind-A, 15-Apr-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: Blind-A, 15-Apr-1997
3/30
Gross Alpha Statistical Summary 179 Participants
The known value of this nuclide is 48.0 pCi/1 with an expected precision of 12.0; the control limits
are 27.2 to 68.8; the warning regions are 27.2 to 34.1 and 61.9 to 68.8
34(19.0 %) Failed to respond .%
2(1.1 %) Outliers*'
7(3.9 %) Out of control
but not an outlier
Statistic
. 125(69.8 %) Within all limits
Respondents
11 (6.1 %) 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
53.70
79.86
6376.94
148.70
11.88
0.07
47.07
-1.94
-0.01
Grand Avg 46.90
9.10
82.85
19.41
-2.30
-0.12
47.03
-2.01
-0.11
9(6.2 %) More than 3 norm. S.D.
11(7.6 %) Between 2 and 3 norm. S.D.
91 (62.8 %) Within 1 norm. S.D.
of known value
34(23.4 %) Between 1 and 2 norm. S.D.
-------
4/30
ESD-LV Performance Evaluation: Blind-A, 15- Apr- 1997
Gross Alpha
Lab
A
AE
AF
AH
AJ
AK
AL
AP
AR
AU
AW
AZ
BA
BB
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW^
C
CA
CC
CE
CG
CJ
CM
CO
CP
CS
CX
D
DB
DD
DE
1 -- v.
,, W* s*
DS
DT
DZ
E
=
0
Res. 1
51.0
47.0
49.9
59.6
49.3
56.4
50.5
53.7
48.0
45.1
39.7
42.9
50.9
31.8
41.2
30.0
40.5
44.0
":" ' *
50.1
64.9
45.2
49.9
\ , ' '4 >'
46.2
46.1
25.9
38.5
47.6
56.0
43.2
36.4
38.5
46.4
47.9
44.3
45.5
56.2
ฃ ; ^ ^.'^-J^ ">
t"""*: *'A ' i, ซ >' '*
V ,v ..:; ' ','f- > .'
44.7
44.8
50.1
39.5
Res. 2
51.6
42.6
48.9
52.7
44.1
54.9
51.6
51.3
49.9
43.4
40.5
41.5
50.0
29.2
39.8
26.0
42.4
42.0
49.7
57.9
43.6
50.4
f^-xi^IS
43.3
43.3
23.8
34.9
52.9
55.0
-,- -
50.8
36.4
41.8
50.4
48.3
45.2
45.3
56.5
,&, ;xv "!''(~: '"*';
y.^ift^tf*
48.5
43.0
46.3
39.2
Res. 3
52.0
50.1
48.8
44.5
52.2
51.3
50.1
49.0
49.2
52.8
42.7
44.2
50.9
28.7
42.2
43.0
38.4
44.0
'. ',<*,'
49.5
59.7
42.2
51.0
f>\vV-I
42.1
43.5
20.2
44.1
47.3
53.0
51.1
34.6
36.7
46.8
51.7
46.6
46.3
56.8
SS, V
*rv. ' '
43.6
44.6
52.9
40.1
No data submitted
Insufficient
data
X s
Exper.
Sigma
0.50
3.77
0.61
7.56
4.10
2.62
0.78
2.35
0.96
5.01
1.55
1.35
0.52
1.66
1.21
8.89
2.00
1.15
<>.--'.
0.31
3.64
1.50
0.55
Z?:ซ:^ *.'.',
2.11
1.56
2.88
4.64
3.15
1.53
4.48
1.04
2.59
2.20
2.09
1.16
0.53
0.30
2.57
0.99
3.31
0.46
Rnganal
(R + SR) Average
0.049
0.369
0.054
0.743
0.399
0.251
0.074
0.231
0.094
0.463
0.148
0.133
0.044
0.153
0.118
0.837
0.197
0.098
A
0.030
0.345
0.148
0.054
-, - ^ ; r
0.202
0.138
0.281
0.453
0.276
0.148
0.389
0.089
0.251
0.197
0.187
0.113
0.049
0.030
0.241
0.089
0.325
0.044
51.53
46.57
49.20
52.27
48.53
54.20
50.73
51.33
49.03
47.10
40.97
42.87
50.60
29.90
41.07
33.00
40.43
43.33
- >-,-- -;,!.'--'
49.77
60.83
43.67
50.43
~\ : ":: r- ;,
43.87
44.30
23.30
39.17
49.27
54.67
48.37
35.80
39.00
47.87
49.30
45.37
45.70
56.50
"s ' .. ""-.X" '-
.:', ' " " V V*
45.60
44.13
49.77
39.60
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
0.67
-0.05
0.33
0.78
0.24
1.05
0.55
0.64
0.31
0.03
-0.86
-0.58
0.53
-2.45
-0.84
-2.01
-0.93
-0.51
r:xi: ^'
OAl
2.01
-0.47
0.51
*
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
Gross Alpha
Lab
EB
-EL-1
EO
ER
EV
EX
FE
FF
FJ
FL
xFNf
-Aoti;
GQ
GZ
HI
HK
HL
HP ^
HXC
I
ED
itjT
,ป s
V -
JE
* ' >M "^
' , ,- \
40.8
_ _36:3_
^^^^^
' . s s \ ^\- ," V.
42.8
vซ' * "' x*(v"*\^;"'^}^\'
$u jt^ ^rsi%
43.8
54.8
51.1
39.2
43.6
41.9
77.8
44.0
51.0
53.7
39.3
29.0
43.5
48.6
48.5
^^|p)ft
"""""" 48.9
^ ^v^XJlM.;l5?*?i
^iS^l*$
56.8'"'
Res. 2
50.6
Y^;- ''M^1'
40.0
56.8
40.4
71.5
76.2
38.9
26.7
38.0
jC^i'fkli
49.7
52.5
30.0
56.2
45.8
47.6
11 % ^ -b ^ x t
41.2
_^J*4;2_
^vrr^v^
" \ "^ * ,
40.9
^\'^*"^Vf^ *Xv,
fVt^^M*^-
44.7
43.3
51.2
35.0
46.8
40.3
71.9
45.0
55.0
54.3
36.3
31.0
41.6
46.1
45.8
49.4
"~^?ft|JS^5
ง^lpS|\t;
^-Nto-,
Res. 3
45.4
46.0
55.8
40.7
65.4
76.7
42.1
29.3
_33.8
If!i0i^8t?!
"f l%*|f&
52^2
58.1
34.0
61.0
39.1
50.7
s^'-', '' -X-!
41.3
_J3.2
'T^^vS'--
^ V v -
" s 1 - \
41.5
^ ^^VX-.^^'^ ^ ซv
ฐ:^-!v:lW^
44.7
53.8
49.8
39.9
44.8
43.8
76.1
44.0
58.0
50.4
39.4
30.0
45.4
46.4
k- ,49.4^
ฅ$SlrM;;fJtx
4~9.5
^^^4'^x^x-
A* V \x ^ ^sVX /' s
x**1 ^^ ,oVJ.%i ,"s
>4Q O
3 No data submitted
0 3
Insufficient
data
X 3
Exper. Rng anal
Sigma (R 4- SR) Average
2.61
^
3.06
1.05
0.96
3.61
0.71
2.40
4.80
2.42
5r^*8j|g\
't'v: )|;"Sf :'^? :>; 's,
2.70
3.86
2.00
2.48
3.37
2.06
^ >
0.26
4.30
; ^ " *--^ '; ,
^ฐ N '* ^ "^ v ^
,
0.97
^*v %X^ x *' * x oV**x"<:L'l\ s
>v,}; :-)x< -i-;iv""',"-\'
0.52
6.37
0.78
2.65
1.62
1.75
3.04
0.58
3.51
2.10
1.76
1.00
1.90
1.36
1.87
0.256
0.295
0.103
0.089
0.315
0.069
0.231
0.458
0.207
S^f
"^y ; ,*
0.266
0.364
0.197
0.236
0.330
0.192
0.025
0.389
^|-7
ปN - '^ ~
0.094
^ ^ ^\^
,x^;1xป.;
6.044
0.566
0.069
0.241
0.158
0.172
0.290
0.049
0.345
0.192
0.153
0.098
0.187
0.123
0.177
48.13
"\V"V -'- ~-\ \
43.33
55.77
40.00
69.57
76.07
39.47
30.67
35.20
^ฃpeiK|2
-tr'-^^frl^k;
49.57
53.77
32.00
58.23
42.67
48.37
< ป. /
41.10
^41.23^
vXป^;;::J|^!|
,0ฐ Tv-?xx~ - *" "\^'sv
* 0 v * ^ * ' ^ ^
41.73
* -"i ^:5X&.-.T-if ' '"''.\-^S^^.
^ ^* %v>v % ^vC^sJ
44.40
50.63
50.70
38.03
45.07
42.00
75.27
44.33
54.67
52.80
38.33
30.00
43.50
47.03
47.90
P^fciP^i^^
'X*-t * ' * ,-.v , 7; % 'viiv.ii ^ i v* ^ S s'-S-S 'tvv^ ss*0*^ ^ X \-. ^ sws%^fc
0.32
,' ? ""^ IT/'' ^'JC'1-'* : -"
^tx^^/\>^:-, ฐ ;^^l^;
""""""'60.57^
TAG SYMBOLS
Determined to
bean
outlier
5/30
Normalized deviation
(grand-avg) (known) Tag
0.18
^vv&i^M^f "
-0.51
1.28
-1.00
3.27
4.21
-1.07
-2.34
-1.69
:If|tiB|^
^-^fefe:^^^^
6.39
0.99
-2.15
1.64
-0.61
0.21^ w_
'^"X x \^-ปi:Js*/
-0.84
^^082^^
^H^SS^^
\ ~^t"!'^\a^-^-'';^1,^ '
sฐx ^x ^ ;s AS^V; '^^xlftt'
-0.75
^" -X^ ^" - ^o^f -^ฐ ^?^"
f^-'^-H^^'jV"
-0.36
0.54
0.55
-1.28
-0.26
-0.71
4.09
-0.37
1.12
0.85
-1.24
-2.44
-0.49
0.02
0.14
~"*6.34^ ""
>^S^^^^^^$^
^2^^^t^
"'^'o.53"""S"
It a Above
II a Below
0.02
^y?-Wi*yi
-0.67
1.12
-1.15
3.11 It
4.05 It
-1.23
-2.50
-1.85
if|Sip3i
6.23
0.83
-2.31
L48
-0.77
JOJOS^^ ^
"^:, ^FC.i^p-5
-1.00
-0.98 ^
^'E^W^O1
''ซ' -\CV- Ji'-y^! \
.,'-'-ป,,-- -'-vl1,- -'^ >
-0.90
**X^SS* "<^^ '-^^S'^^*
^?!(!\,t "^'f :^tlM
-0.52
0.38
0.39
-1.44
-0.42
-0.87
3.94 tt
-0.53
0.96
0.69
-1.40
-2.60
-0.65
-0.14
-0.01
.19-jjLr^./
'YW' ^:;,^>ซi??
$W^S^fe!'
"*0.37"" '"
control limit
control limit
-------
f. =
6/30
Gross Alpha
Lab Res. 1
MY,
N
NA
NH
NJ
NK
NO
NT
O
OB
OF
OM
OS
OX
P
PA
PB
PD
PG
PM
PQ
PR
PW
Q
QM
QP
QQ
QT
QU
QW
QX
QY
QZ
RD
RF
RG
RI
RK
RP
RR
ittr
RZ
s
sc
, , ,";V^'u;/*,
48.0
57.0
37.0
43.4
44.0
45.3
44.6
59.0
47.8
56.9
', ' '. '.."!"";
43.0
63.3
66.0
51.0
28.9
53.9
41.8
42.3
- - ~ ;-" ,
50.4
63.6
51.1
55.9
45.9
55.9
58.1
64.7
'. ",-Xl," ,
39.8
44.4 _
39.1
55.5
33.0
', "\\.Tv5**
49.0
62.8
63.9
50.0
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
Res. 2 Res. 3
- ''''%*~$?#: '/.
49.3
58.0
40.0
43.4
45.0
50.7
46.0
58.3
43.2
55.7
' - .ww*^ -. w s ^
43^0
75.4
14.;5_
Cj;3-!;lT^';;
~ 49.4'
18.1
61.5
38.7
s ^ .'-.-.
45.6 '
" '*;,'
46.6
61.7
53.6
54.6
49.3
60.1
59.7
66.7
M;^^V?M^%
' 48^2
^41.1
'^ff^jj^^ -
39.1
58.5
33.6
-'":>;- ' -
49.2
61.0
28.0
40.3
42.9
51.1
47.2
57.4
44.8
59.2
43.0
57.5
68.9_
r.!-j?
50.7
28.9
61.1
36.4
44.7
46.4
61.7
49.8
56.4
44.8
55.0
55.8
63.8
tj^js- >"
48.0
41.4
38.5
58.0
35.0
Exper.
Sigma
: , '* *:''
0.72
2.08
6.24
1.79
1.05
3.24
1.30
0.80
2.34
1.78
0.00
9.13
4.32
<."; ''I- > - ''-"'
0.85
6.24
4.28
2.71
1.71
2.25
1.10
1.93
0.93
2.35
2.72
1.96
0.95
4.79
1.82
0.35
1.61
1.03
^\
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
- *">
0.064
0.197
0.591
0.153
0.103
0.285
0.128
0.079
0.226
0.172
0.000
0.881
0.418
, 's "^
0.079
0.532
0.374
0.266
' ; ,,
0.162
'' ";V\"r
0.197
0.094
0.187
0.089
0.222
0.251
0.192
0.094
> - >.
0.413
0.162
0.030
0.148
0.098
'- - - -,:,-- ^ _ > ^ j , ^,
48.83
58.67
35.00
42.37
43.97
49.03
45.93
58.23
45.27
57.27
"V "" "' * :*ฃ i^"* " "v'"' " '
43.00
65.40
69.80
'!'>lk* -^W]m*
50.37
25.30
58.83
38.97
"' - ' ,'"*>:'
44.20
' v ' V'-v "-
47.80
62.33
51.50
55.63
46.67
57.00
57.87
64.73
-.v"- '' ,- , " -'--'
45.33
42.30
-- \ - -
38.90
57.33
33.87
. ,^-ป-\^SfcV"
6.2fiT""
1.70
-1.72
-0.65
-0.42
0.31
-0.14
1.64
-0.24
1.50
'*;, \vrTr"-;;
-0.56
2.67
3.31
'"SS^-S
0.50
-3.12
1.72
-1.14
""' '":' ';"''',,.<
^ฎL^.
, ฐ < Kr^-F^'t-1
0.13
2.23
0.66
1.26
-0.03
1.46
1.58
,2-5JL^,,
../ "<*:%$i*fj&
-0.23
-0.66
;., "^"ฐA^
-1.15
1.51
-1.88
ai%f^Lปซ,;5
0.12
1.54
-1.88
-0.81
-0.58
0.15
-0.30
1.48
-0.39
J..34
-0.72~
^2.51 _
"3.15^' T"
iSSSSs?^
'0.3V"""" "
-3.28 H
1.56
-1.30
- 0 '," '",: '
^-0.55
:r;:;5r'^Vป- '}'
-0.03
2.07
0.51
1.10
-0.19
1.30
1.42
W2.42 _
'^^P^^IC
-0.38
^0.82^m^__
^^^lf|ซ^
-1.31
1.35
-2.04
v-.r^x""^ - , . ^"^ - /-^ ,} > " _/." ivt-ซI^^S^^^
49.0
"" '' - '* ' '" A '""
60.4
62.7
53.6
48.0
58.8
59.4
48.8
= No data submitted
7) s
Insufficient
data
X S
0.58
2.01
2.33
2.50
0.049
0.197
0.222
0.236
48.67
'-
60.67
62.00
50.80
TAG SYMBOLS
Determined
to be an
outlier
0.26
''',[ -,^;'r?^l
1.99
2.18
0.56
IT s Above
II s Below
juom
^^-^"^tC
1.83
2.02
0.40
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
Gross Alpha
Lab
SD
SF
SG
SI
SL
SM.
SN
SO
SR
ss
sx
sz
T
TD
-.TH' '\<"'"' &$ซ
47.0
44.1
43.7
38.6
46.7
48.8
51.5
s , , v^^vfrf^
',\ V,, < ^
s . , X X' s\ N k '* 5 '
\tl *%.* - '" *'x\ "%XV+
?J> \ N 0 ^ ****-*^^
38.1
Res. 2
45.2
50.1
17.5
54.2
52.0
53.2
42.3
34.8
46.2
38.9
47.8
39.8
41.2
34.6
" \\V~- -
v^U^
41.2
_,46.8.
44.5
38.0
56.0
>-*' "''"'"7.V.
37.1
39.0
/> "'""" \^
- f , ;,- "~i-
48.3
48.8
42.4
,
42.3
ฅix-fc.mV*it > SiAx: i * O ** -.
56.9
37.0
44.0
47.0
47.3
48.5
47.0
l^^r^'' T*"
x c>?^,'S-\-s -"
x^ป. tysy.. \~
t%?5^|f^^
\*-.'* ^ ""Vl^tM^v^N
38.6
Res. 3
38.4
54.5
15.7
46.1
53.0
51.2
44.3
38.9
47.3
41.3
48.4
40.3
43.0
28.7
^' x;::
53.9
46.9
47.3
39.0
59.0
/!"" \' ~-v'\rr
40.4
44.0
x ^V*...
47.9
47.7
43.4
40.7
* O " ""
, , '-:' ' "
49.7
35.8
55.2
42.8
49.6
50.8
46.4
ot~-'" '--xx^.\"~
-;>,
X ^ ' ' ^ \ ',.
'X\;,Vo\; -~\-
* * * > \^ * ,
39.0
3 No data submitted
0 a
Insufficient
data
x =
Exper.
7/30
Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
4.08
4.96
1.04
4.71
1.53
1.57
1.03
2.26
2.12
4.44
1.25
1.84
1.51
3.69
8.92
0.38
1.47
1.10
2.52
-^ s" - \ , - s;, -
1.93
2.52
V - - - " -
2.43
1.96
0.55
2.01
5.12
4.49
6.55
4.20
1.53
1.25
2.79
""^ \ *
; - f%'- ^ ^^
- % X ' "" ' ^ -1%;
' % ss"
0.45
0.359
0.487
0.089
0.404
0.148
0.153
0.098
0.202
0.202
0.423
0.118
0.167
0.148
0.335
0.847
0.034
v x %.
0.138
0.108
0.246
' , ,*xV - '
0.167
0.246
\-\
0.217
0.187
0.049
0.197
0.487
0.409
0.566
0.413
0.143
0.113
0.251
^;f ;-\,
; .,' \ '- '\y
0.044
43.10
49.73
16.90
51.53
51.67
52.90
43.43
36.30
45.57
42.57
48.80
41.10
41.40
32.93
* .', V'-X''
:---x 'V--'-\-^~
51.17
47.07 ^^
45.63
37.93
58.67
-'\' '':^x ,,-c^y.
38.17
41.33
' ' *;x ,o, ,~
; -,\ ,t,',,-,
46.70
47.17
43.03
\x ^V
42.57
' ^ s ^s
- -~" ''s "' ^,-.ซ'*;ป,-
51.20
38.97
47.63
42.80
47.87
49.37
48.30
\"s ^ "x ^ <." ^V^; ^*^ o
-; ^ X ^%*^-
^V -^ ' s ^ %v s; ^V^
s " J, t ,*^ ""^\x<^ ^T"--^
S ^ . - N '\C^\S ฐ ^Vi
^ - ; ^^ xxv
38.57
TAG SYMBOLS
Determined to be an
outlier
-0.55
0.41
-4.33
0.67
0.69
0.87
-0.50
-1.53
-0.19
-0.62
0.27
-0.84
-0.79
-2.02
\;l^;Ny%
>xซ*s<\^x^^s;!jV:S.
"6.62
-1.14
0.11
-0.59
0.14
0.36
0.20
^^j^5^'*^T
'xc-^-i'^l^^x
- ^I/'^^^a^k
o^^^S^Sfi^
Xv^J%j^^^^^^*rV>
-1.20
ft m Above
li s Below
-0.71
0.25
-4.49 U
0.51
0.53
0.71
-0.66
-1.69
-0.35
-0.78
0.12
-1.00
-0.95
Z2.17_
- ' ::' xV,,V;*.v&l,Cj
;^^?;s^
0.46
-0.13
-0^34
-1.45
1.54
^",; vx'v-"";^Pt
-1.42
-0.96
c\;\ ,"-r<'jfi?i?
;v -^. rtligf
-6.19
-0.12
-0.72
vฃ^v^|^^
-0.78
s\ -.wsv-. v ^ ^ -.^ . 'ay-iy^swH;
sAsi^'i-toS^' st^*^S
0.46
-1.30
-0.05
-0.75
-0.02
0.20
0.04
^x^v^Cl^J^
;\ -V, ~\-\^|^^
^4^^v^<*itis
^^wSi&S^^-^^ -^"VX^" ซ-'*
-1.36
control limit
control limit
-------
8/30 E8D-LV Performance Evaluation:
Gross Alpha
Blind-A, 15- Apr- 1997
1
Data sorted by Laboratory Average
Average Tag
16.90 U
23.30 U
25.30 II
29.90
30.00
30.67
32.00
32.93
33.00
33.87
35.00
35.20
35.80
36.30
37.93
38.03
38.17
38.33
38.57
38.90
38.97
38.97
39.00
39.17
39.47
39.60
40.00
40.43
40.97
41.07
41.10
41.10
41.23
41.33
41.40
41.73
42.00
42.30
42.37
42.57
42.57
42.67
42.80
42.87
a No data submitted
0 s Insufficient data
Lab
SG
CC
PD
BB
LF
FJ
m
TD
BG
RK
NH
FL
CP
SO
U
JS
UP
LE
XF
RG
WE
PM
CS
CE
FF
E
EV
BH
AW
BC
SZ
I
ID
UQ
T
JE
K
RD
NJ
VO
SS
HL
WO
AZ
Average Tag
43.00
43.03
43.10
43.33
43.33
43.43
43.50
43.67
43.87
43.97
44.13
44.20
44.30
44.33
44.40
45.07
45.27
45.33
45.37
45.57
45.60
45.63
. 45.70
45.93
46.57
46.67
46.70
47.03
47.07
47.10
47.17
47.63
47.80
47.87
47.87
47.90
48.13
48.30
48.37
48.37
48.53
48.67
48.80
48.83
Lab
OS
VJ
SD
EO
BK
SN
LL
BO
C
NK
DT
PR
CA
KT
JM
JY
OB
QZ
DB
SR
DS
TY
DD
NT
AE
QT
VH
LR
TQ
AU
VI
WH
Q
WR
CX
LT
EB
X
HP
CO
AJ
RR
sx
N
Average
49.03
49.03
49.20
49.27
49.27
49.30
49.37
49.57
49.73
49.77
49.77
50.37
50.43
50.57
50.60
50.63
50.70
50.73
50.80
51.17
51.20
51.33
51.50
51.53
51.53
51.67
52.27
52.80
52.90
53.77
54.20
54.67
54.67
55.63
55.77
56.50
57.00
57.27
57.33
57.87
58.23
58.23
58.67
58.67
TAG SYMBOLS ft
x s Determined to be
an outlier U s
Tag Lab
NO
AR
AF
MF
CG
D
WW
GQ
SF
DZ
BM
PB
BS
MV
BA
JN
JQ
AL
SC
TN
W
AP
QP
SI
A
SL
AH
L
SM
GZ
AK
KX
CJ
QQ
ER
DE
QU
OF
RI
QW
O
HK
UA
NA
Above control limit
Below control limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
9/30
Gross Alpha
Average
Data sorted by Laboratory Average
Tag Lab | Average Tag Lab | Average Tag
Lab
58.83
60.67
60.83
62.00
PG
RZ
BN
S
62.33
64.73
65.40
69.57
IT
QM
QX
OX
EX
69.80
75.27
76.07
78.67
1002.00
IT
IT
it
p
KE
FE
M
FN
% responding labs
10-
Frequency distribution
-ฅ---
% responding labs
-4 -2 0 +2
Normalized deviation of the mean from the known value
Frequency distribution
10
-4 -2 0 +2 +4
Normalized deviation of the mean from the grand average
= No data submitted
0 s Insufficient data
TAG SYMBOLS
x s Determined to be an outlier
IT 3 Above control limit
II s Below control limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
10/30
Radium-226 Statistical Summary 179 Participants
The known value of this nuclide is 13.0 pCi/1 with an expected precision of 2.0; the control limits
are 9.5 to 16.5; the warning regions are 9.5 to 10.7 and 15.3 to 16.5
82(45.8 %) Failed to respond
3(1.7%) Outliers
2(1.1 %) Out of control
but not an outlier
Statistic
, 86(48.0 %) Within all limits
Respondents
6(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
12.92
4.69
22.02
36.32
-0.60
-0.02
12.63
-2.82
-0.08
Grand Avg 12.60
1.29
1.66
10.24
-3.12
-0.31
12.72
-2.18
-0.22
5(5.2 %) More than 3 norm. S.D.
6(6.2 %) Between 2 and 3 norm. S.D.
63(64.9 %) Within 1 norm. S.D.
of known value
23(23.7 %) Between 1 and 2 norm. S.D.
-------
"
11/30
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
Radium-226
Lab
A
AE
AF
AH
AJ
AK
AL
AP
AR
AW
AZ
BA
BB
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CC
CE
CG
CJ
CM
CO
CP
cs
CX;
D
DB
DD
DE
bin
DO
D8
DT
DZ
E
Res. 1
11.7
11.8
13.0
12.4
11.4
12.4
12.9
11.3
; ;, -y. V^'V-*?
";7%&6K-
11.4
13.9
12.1
12.9
--'' > " ',;
12.4
12.9
' / "' '
13.0
15.8
13.3
12.5
10.9
59.1
12.3
13.4
12.0
' ' /" ' '' \, *' ,'
13.4
r!vtr&-"\H4
', '.'.'
11.4
i.^1- " ^ '. I'"1 '"ป<.' ' ._ **
_ JUU^
: ' ' ,''-;"'- '''"''
, * ""' , '
12.9
13.6
11.7
Res. 2
12.1
11.7
12.9
12.6
13.6
12.9
11.2
11.2
^&jSf&;*'ฃ
i;*;^ฃ$^
12.1
13.5
11.1 ^
i- -, ,*.** ' t* ,* '' ""w* *
12.9
'/>"" * ''' '''-
12.3
12.7
'>"'' ..
12.3
17.0
12.8
, ' -
'ป
12.4
9.7
' 'V5&0'"
13.9
12.7
_13.0_
^j-r^r"
. 14J ~
11.6
"^;^t^
._l,Hdป,
, -\"',;V-f:,,-;t^
v '' " i?:V -!
." , ~- "
12.7
13.1
11.4
Res. 3
10.7
11.6
12.8
11.8
12.6
13.2
12.8
13.3
?
5.8
12.3
13.7
11.5
;< >>-
12.9
*;;:f v;,> -
13.1
12.8
'' -
12.6
17.1
13.2
1 "' --'
12.0
11.5
'/'"Mk40
14.2
12.9
14.0
..; ,-.' $ ,***"*
13.9
^r-as , ;
T'f- ,/'':..,/'
12.1
?$;"-V /'
.. 13.4
ih"- :\,
"'-' '(; ",_ ' ' '
-x ;/,"<:- :
11.5
14.8
11.1
= No data submitted
0 s
Insufficient
data
X s
1
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
0.72
0.10
0.10
0.42
1.10
0.40
0.95
1.18
0.20
0.47
0.20
0.50
0.00
-
0.44
0.10
\ - -. v >
0.35
0.72
0.26
' .
0.26
0.92
3.06-
1.02
0.36
1.00
0.45
0.36
0.00
" '' ' ' - '
0.76
0.87
0.30
0.413
0.059
0.059
0.236
0.650
0.236
0.502
0.620
', H
0.118
0.266
0.118
0.295
0.000
" ,
0.236
0.059
-;r '-'
0.207
0.384
0.148
, ,. V
' x
0.148
0.532
2;52T
0.561
0.207
0.591
*
0.266
' .'' "'
0.207
0.000
11.50
11.70
12.90
12.27
12.53
12.83
12.30
11.93
>*\*';,5T^>^'-y
'^"'^":S'jfr>*-
11.93
13.70
11.57
S ^* "^ "; " isJปX's
12.90
'!;:f"/
12.60
12.80
'-' * "
12.63
16.63
13.10
V ^ . .
> "" ^ ^
12.30
10.70
:r; 56.17-: "-'
13.47
13.00
13.00
'> s * *
13.87
V*v".' n^w
-\'^':---^,- -~,';c,;;.
11.70
^; y.r-;^>rr ;
13.40
-0.95
-0.78
0.26
-0.28
-0.05
0.21
-0.26
-0.57
-"* ฃS ??wa^^ wsss
. .- ,- v<ซs!X^
-0.57
0.96
-0.89
TltfFpli
0.26
'" 'trl^;^
0.00
0.18
'T":^ \^^?r^
0.03
3.50
0.44
^W^^Vf^VJ-, W^
.' x'l v:4;i
-0.26
-1.64
"37*78^^"
0.75
0.35
. .? ^L
">v^\$J
'-?^-^ff^t|^
>', s ?^f~
1.10
, - "%~^r>,^^
/>"f^tfili
'M.'."^"^^
_ :0.78^'r^"
y-^r "'^ rSf
0.70
r^:'":';; '' '^^-,-.v ,' ,--;"': 5^;"^'^-?
' ] "'
0.413
0.502
0.177
12.37
13.83
11.40
TAG SYMBOLS
Determined to
be an
outlier
s. ' '.H\ '>"*"
- '- '- "- V'".
-0.20
1.07
-1.03
ft a Above
JJ. a Below
-1.30
-1.13
-0.09
-0.64
-0.40
-0.14
-0.61
-0.92
^y^ii^^ii
^^^(^
-0.92
0.61
-1.24
-0.09
^|^|^f^
-0.35
-0.17
^^*^^sr\
-0.32
3.15 It
0.09
^' \ *<*% *r * - w
C;;-;J r^ i^',>
-0.61
-1.99
ptfalaT^M-'
0.40
0.00
0.00
V ^^"'^"X ^V'+''s *'-**' ^ ifj*
uซซซซ'^rv-;
|ipS^^*
0.75
M'r^vUr'i?:'
"-1.13^ (i'r ' "'
vlfi|f4^;^
0.35
;S:^ff^;'^;t?
;; 4-, Vyp'rM ซ,*,V
V* ?'; '1Vs;|*^r''
-0.55
0.72
-1.39
control limit
control limit ^
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
12/30
Radium-226
Lab Res. 1
Exper. Rng anal Normalized deviation
Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
^^^10.7 ^ 10.8 ^ ^J.0.7^ ^ ,_ 0:06
GQ 13.3 16~6 14.5 1.35
^xirovcw^B^^w^?^-^?^?.*^"-^ - v '"*
, \*MtF>',.,.Zi.f^ Jซ--y->V--^-^>-^~-1;?> ^^v^v-j^j^x-; t! -lv;ซv,ov - - '
HK 13.5
HL 13.2
HP 13.6
0.118
0.148
0.030
0.089
0.118
0.030
0.797
0.030
0.473
0.266
*"""
-;:-:;;
0.443
0.473
13.93 1.16 0.81
13.90 1.13 0.78
13.33 0.64 0.29
12.23
-0.31
-0.66
13.20
10.73
0.52
-1.61
0.17
-1.96
' 'ft * * "-;-#' , ! ^ ff^-y:",\~-~ - ^*Jx?x\lv3S-~^-^\ V^i*-'*'^^*,*^^^^,?
-v ซ).,- :;-ซ>;*< ,^-^%^,{\4&A|-> "^tV?^ซfeฅ^S^ป^^^^-^
%>'ป.V -? ^7',,^, l--% '>s<~;x,*l^x^vf^f^
0.295 11.10 -1.29 -1.65
1.458 15.17 2.23 1.88
0.443
12.33
-0.23
-0.58
s No data submitted
0 s Insufficient data
TAG SYMBOLS
Determined to be an outlier
tt s Above control limit
U s Below control limit
-------
13/30
Radium-226
Lab Res. 1
'MY>y|^4;
12.4
VU- ' ' / ""
' ' " ''
14.5
13.8
- .-, v
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997 1
Res. 2
r4^4ป^4^J,J/
'l2.2^_'_
^ ' *r ^fcS^IIJ.' ''
'' '-V^' " 'A<->* >
13.5
12.6
'i' ^'f '??". *, * s *"*
Res. 3
'? -, -v'--:i4ซ
12.3
xr>rr '^
f ^/ ^
13.4
13.9
Exper.
Sigma
'sL},'-,,-^,". **.' < 'ป'- -'
0.10
^'/T, '"' "
0.61
0.72
Rnganal
(R + SR) Average
' - . ;}..
0.059
0.325
0.384
' ' V,-; t "'}
12.30
13.80
13.43
s ' "-'"'
Normalized deviation
(grand-avg) (known) Tag
-Vvv ^ * 'j-v-,.^1'-: ซ'''
-0.26
^'' '\%\ ป **-\ ';-' ' s" s - "*\ 1? -.
. J/ ^X * >J i^ % ""h\
1.04
0.73
J-' >''* ' >.,'^!'!"'\K,>'>'ฅ'S'
^-K^jK,;-... B!'ซ!"*>S';'J;<ป ?<'*.'; "j
'' ' - "'-' '$ rf' ' - ' ;-' ~,***, v~ , ! -" , / ",-'ป \", * ;,,. x&s"'.;";' sijU^j't&Vs '>' *ฃ>'-,
NO
NT
O
OB
OF
'iti^
VMS*?
OS
ox
U3pป
p
'tM&;
PB
~ prfV-*
' *"**<>
PG
PMf
>Pftv
^*\
Pit
PW
Q
QM
" Q&-'$
^KC
'' *U^ *'
"'illl?
- *$
mx**!
^ *%^ft^<ซ
RZ
S
sc
3
0 a
10.2
12.9
9.8
14.0
11.4
10.7
12.4^
,, % ' ^ r/* '
12.9
&''*
v"1"^ J V*%'J*x^ >^_
12.8
13.1
11.3
11.2
13.2
10.3
14.0
11.2
> ^''f? '"'y'r.t^C '
'-"/: <"'J."~, ."4
11.0
^_13.4_^
' -' '".**'->;-:' &"".
12.9
'^ &' ' ' ฃ'^''f^*~' *
13.1
^"A'^'^f^rt^T".?
,' ,'v'j^K*1?"^to|5% '
12.0
"^^if*^' 'X5<'V% '
' % V" "^ % 'j-^ ^^
' ''s"*^v^";
14.9
14.2
13.3
* ? *r^ t"^""' -',* %;\
>^ "" ^ * ' ''^ *
16.8
'A w'* * ''*'**'&* ** "-^ '
*v - fป8-*o^V
12.9
10.5
12.6
13.8
14.9
^^J^P%-5
V .^i^^^'^l^*1"
9.1
^T"^ -' ^"ji;f*:^S'"
^ ^' ^ v '<^ -C' x *9<
^>it5Hi^^^|v
^S;?5^?'/^^^
A* &ff-'$*'f'' "" ^ *'*''*-'*\^J>
12.7
13.3
7.3
11.3
13.4
10.2
14.0
8.9
11.7
,13'4
5 "
11.4
14.4
13.0
if-'^^y^*"
'%ฃ&<.'}?",'
15.3
J.*1" i'^jiii;-,--^;-
.vx :-,- -.i Oi^^X.
-.; Oป-ป^
12.5
9.4
12.8
11.9
13.5
12.8
*A^ ' v
it, '-.
13.1
13.2
8.4
No data submitted
Insufficient
data
X s
0.61
0.25
0.26
0.00
1.39
0.51
0.58
0.69
'''..''V; '
6.15
t<""*" '<:?'*'''' /;\-^,,; ป
, . "/ '' '-,\:tf ;' *
1.46
""',.; ,
'"*' ''""' -'' , ':
. "*y
,jฃ^''-, >';!}.-
1.75
0.15
0.35
!**!<'SS, "> [V;V~ " %* S
-< '-^/"Y',
\ > '""" ' "*'*.
0.797
^; ' '* ."
''..^ , -N '
1.064
0.089
0.207
.-
' - >' '">
0.561
j, ^" *. '*iiJ*3B
, 'uซ768
0.502
0.325
0.177
0.561
0.620
1.177
--^
*
0.118
0.059
1.345
10.90
13.17
10.10
14.00
10.50
," * ; ff '?-f\vf
11.13
13.07
12.50
12.93
J*-*^~*HfฃSp. VSJ^
;"i ,^'s V ป >i^^
10.97
. 1-s' "v-s ' % < -' - "
' ': : " ^ V- ' ""
- ,- > - ; \- 'v;ซ. / ; ;>
13.13
14.37
13.33
' / ' * ~'"-." -'^*
'v
16.43
> ' +%ฃ'*f $* " "*ซ-> v'tt
^w / ^ v ' * " 7ซSx
12.20
"' : ""'^
9.93
12.53
12.93
13.73
10.73
- ^ - ^ '''' \ \ v- *
A*/--^V\ ^ \ "X
' -. > " v 'w ^ "
1 -.\ "" - """ ws v \
.. - *
12.87
13.20
9.00
TAG SYMBOLS
5 Determined
to be an
outlier
-1.47
0.50
-2.16
1.22
-1.81
'i'fฃr,'- '"'-'f-^ "
ri"27 '
0.41v_ ^
' '*'' ,.''sCs-'eJT'V'!i'
>,.. '-P:08_,,l
,^;-'* '/''-'',*," ';"^"5"^f
0^29
!5f?T'^\!*t?f^sWป>1,*1.
^' \ -, ' '--'ฃSP? ^W-^'t; \
-1.41
*,; /;-"1"-;\^-^
ซ''^:,"^A^*:
'S. * <50 % < ^ X'-j*^" '<' > 'Vnfflil'h,''
;^''Jst^^5^;^ฅ"
0.47
1.53
0.64
', ji _ ys -",/ซป; ""STS.r ,;
~ ' s ' - , ,-'" -, S''s ^ ! s
3.32
<.-*, v^,* s" J"^ "'^ iift{^i^^''^''^\-^:
T? ' , * 4*35-y;!^ ^ฃ *
__^434\2~
'ffK^-i
-2.31
-0.05
0.29
0.99
-' ',} "-TtV*
', ' ;'s'-' , ^4*
" s" s, ' s,s'',s> ssf\
'ifr
\s, , , , - "s- 's 'ฃ!ซ
.^^A-?-L...
." "^ ป ~ " c T**?nr sra
, sV ,", -Xs.' ^ s-i-*>
vy--,- v"-r-Cs''-v^^,
',t ;*'?- , *i,';jrJ^>P&^
^s / V"'v' s ^'^ r -C^vV*; i>.4^
/ 's\ *' ^H?**'*** 0,?
0.24
0.52
-3.11
ft a Above
11 a Below
-1.82
0.14
-2.51
0.87
-2.17
-7T;S"s?!""f" ~ C5,
'tfvf^A -\ ^^^^Sji^ijc!?;
jL?f Ij^&feJS"" * ""-
-1.76
,^r. ' "T'J"^;
'','-;-%- ;!<^!.;f'! -,".'-:
A*v yW&TT^^'V^ ^ ^ ^
;^^^^;'ป:T
0.12
1.18
0.29
'>^ " SV ,' \- * j~
,'"/"s 'i^V'"','.' *
2.97
'^'''^^.'gjft'Sft^'^^sJ-.*' ''''' ft '*'''' ^
^*^h7^*'!**'* ^ s^>
-0.69
5Wปff^>^ป;
-2.66
-0.40
-0.06
r,0.84vw> __
^I-^TA^S!
st ',1^i:-t Xf ^;:,l|"
-1.96
^K^^^^*^?S^^I
^ * y^'tljf'*'*' ''^^"''i. v^tr
^t^^l^x "i ?' V""^ *Vป
^^^v^^^"^^^1 *>^5. "s*
jJS ^ ' vT* * 1-/t **' ^ %>
-0.12
0.17
-3.46 li
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
14/30
Radium-226
Lab Res. 1
Exper. Rng anal Normalized deviation
Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
0.62
0.81
0.354
0.413
12.60
11.27
SM
10.8
11.0
0.17
11.1 0.15
,)"^?,ปปy^rV " -s-.
12.00 -0^52 -0.87
12.17 -0.37 -0.72
0.443
0.413
0.030
0.384
ซ " ^v
0.443
0.295
vr - -; :^>:^:;?:r^,:*
W 11.5 11.8 12.1
WH
WO
12.4
12.6
13.3
14.6
13.0
13.0
0.30 0.177
0.46 0.266
1.06 0.591
11.80 -0.69 -1.04
12.90 0.26 -0.09
13.40 0.70 0.35
nm .,-"" - 5 " " ", '^ ,^'^o^i;fax:X?| ^-'-<; "'I vซ '' - ^;-;- - "^ ' * 'x'-' "''- '* V. -' \-%! - ^!" '\~xC-' - *^r y->\ 't*>'\ r* ^' ! ^ t \^-*< !\?- ^'
^"-^ซ,ซVi-i--.'
13.0 0.26 0.148
15.2 0.72 0.413
13.10 0.44 0.09
15.40 2.43 2.08
= No data submitted
0 = Insufficient data
TAG SYMBOLS
Determined to be an outlier
It s Above control limit
ง s Below control limit
-------
15/30 ESD-LV Performance Evaluation: Blind-A, 15- Apr- 199 7
Radium-226
Average Tag^
5.80 x
7.57 x
9.00 U
9.93
10.10
10.50
10.67
10.70
10.73
10.73
10.73
10.90
10.97
10.97
11.00
11.10
11.13
11.27
11.40
11.47
11.50
11.57
11.57
11.70
11.70
11.73
11.80
11.93
11.93
12.00
12.17
12.20
% responding labs
ฐ -6 ' -4
= No data submitted
0 3 Insufficient data
Data sorted by Laboratory Average
Lab
AU
QT
SC
QX
O
OF
L
CA
RK
ID
FN
NO
SM
PG
LT
JS
OS
SF
E
FE
A
SZ
BA
DB
AE
TD
W
AW
AP
TN
TQ
QU
Average Tag
12.23
12.27
12.30
12.30
12.30
12.30
12.33
12.37
12.47
12.50
12.50
12.53
12.53
12.60
12.60
12.63
12.63
12.80
12.83
12.87
12.87
12.87
12.90
12.90
12.90
12.93
12.93
13.00
13.00
13.00
13.00
13.07
Frequency distribution
ll .
Uu^
-2 0
Normalized deviation of the mean from
T,ab
ER
AH
SI
N
C
AL
K
DT
VA
SX
P
QY
AJ
SD
BH
VH
BM
BK
AK
UQ
UP
RZ
WH
BC
AF
QZ
PB
U
ss
CJ
CG
OX
Average Tag
13.10
13.10
13.10
13.13
13.13
13.17
13.20
13.20
13.33
13.33
13.40
13.40
13.43
13.43
13.47
13.47
13.70
13.70
13.73
13.80
13.83
13.87
13.90
13.93
14.00
14.10
14.37
14.60
15.17
15.40
16.43
16.63 It
56.17 x
+2 +4
the known value
TAG SYMBOLS , It a Above control
x a Determined to be an outlier $ a Below control
Lab
X
M
BO
T
PW
NT
I
S
QM
EO
WO
DE
NJ
HK
HL
CE
AZ
B3>
RD
NH
DZ
CS
EL
EB
OB
VI
Q
GQ
JY
XA
QQ
BN
CC
nwAi
+6
limit
limit j
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997 16/30
Radium-226
% responding labs Frequency distribution
10
Jiijiittllhfi
-6 -4 -2 0 +2 -^ +6
Normalized deviation of the mean from the grand average
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
17/30
Radium-228 Statistical Summary 179 Participants
The known value of this nuclide is 3.1 pCi/1 with an expected precision of 0.8; the control limits
are 1.7 to 4.5; the warning regions are 1.7 to 2.2 and 4.0 to 4.5
92(51.4 %) Failed to respond .
3(1.7 %) Outliers
12(6.7 %) Out of control
but not an outlier
Statistic
. 59(33.0 %) Within all limits
Respondents
13(7.3 %) 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
3.51
1.05
1.10
29.88
13.16
0.39
3.33
7.53
0.22
Grand Avg 3.39
0.86
0.73
25.23
9.38
0.34
3.25
4.84
0.18
15(17.2 %) More than 3 norm. S.D. ,
13(14.9 %) Between 2 and 3 norm. S.D.
42(48.3 %) Within 1 norm. S.D.
of known value
17(19.5 <*) Between 1 and 2 norm. S.D.
-------
18/30
ESD-LV
Performance Evaluation: Blind-A,
15-Apr-1997
Radium-228 1
Lab
A
AE
AF
AH
AJ
AK
AL
AP
'AR&
:f*M:lK%
AU
AW
AZ
BA
:'':'ปMI% ' "
&-J&0
BC
iBG'
BH
BK
;:BL;;
BM
-.BBC/
BO
B8
BW
C
CA
C0
CE
CG
CJ
CM
CO-
CP
cs
fnp*
*, ""
'ps* ';s
DB
DD
DE
TJX
'Y*
DO;
' DJJ,
DT
DZ
E
=
s
Res. 1
2.6
3.0
3.5
3.6
3.1
5.2
2.8
3.6
'& ^''"y^~'-'~&):
,'," '"Z,?} , ," >X - *<$K"
'" ,
3.5
2.3
2.5
f J ''' ' "" "
> ....
2.6
2.8
3.4
. ' t, ฃ.'- i.^. <-
^ ' , \v i V , <-.
* '^
4.5
/"'i * ' > " V*
2.8
' - -. * <. " ., '
'- ., -. , .'.y.
4.5
5.1
.. .'.ฃ$&"
3.2
2.2
5.0
.*-' ^.*'\-'~r-%&
4.3
- '-' - ,'T: ' "T^
. , vs '' ^CJ*.
0 k >* ซ/t* *"" ****
:'Y/.,*v';-''!:''%
3.8
4.8
.' ^::U6s6J4
3.6
1.3
4.8
' s>~- ..&%* * 'y*v*' '
^^Al^l
'-;"-."?>;'.-"" ,
4.2
A^SI^'?l-^i?
>-l-,:<2;ปfปfe*feป
3.0
- 'ฃ'';. :V.ivV'*
' vr^r"
'?"' ''^''^''' '*
, -,,,
x^^-T-A,
^^te^?*5s*f
5.0
3.2
3.3
No data submitted
Insufficient
data
X
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tae
0.20
0.10
0.06
0.72
0.30
0.46
0.44
0.65
KP/;; /ซ T" - ซ -
'?A.ปt^';r-:' '"'"
, ^ ..-
0.15
0.10
0.38
. > ,.-..
0.50
' ' ' '
0.66
0.20
, ",\, ,,'_' ' /
. t. -. ,''! -.1 f 1 s ^ %
0.42
\f. (' '-- , %/-,
0.35
;"'! X
C V ,"'ฐ ': ' '
0.60
0.40
< * (.'"'MX-' ^ ' ' '*
0.35
0.80
0.12
MM^li -
'&*', - '-'v'- ' " >
0.06
W/^r^ ' - ":-""-~ >; -
^-i^^s>-^SS> -" " l "
$&fyKm$?*' s> - * * ' "*
Wilv*.:-.vx..-
0.21
i^^y;' v-vV -
0.10
' ~"
q^>"f-ฃ* w? s Aft"AV >,-."',[
tjf} ****% ^** *V *"' , , '
^^"HV^ s % "**'*
0.50
0.23
0.35
0.295
0.148
0.074
0.960
0.443
0.591
0.591
0.960
/Y ^, C*v"-ปv>. *
. > , ^ ^ ; -' sj, ^
0.222
0.148
0.517
111 ; ' '
0.738
0.960
0.295
' -<'-;.j'c vr,; s'
" -. - ^ ^ * v.-. 5
0.591
"**,
0.517
* ^ ' "
A ' ' ' % *,%''''>' ^ , ,
0.886
0.591
,,$960--,., ^;V,
0.517
1.345
0.148
'"': , ป"*",' '"
0.074
, .,. , ^+i%
'It ' -' Ov^
>(f,f ^*_,-, -'; x^*t^', -
0.295
-;~'ix-\'>' ^ ?"*
0.148"
Ml%*N ^ ^ ^} -- '
J^ *s''s
^ซ%A^-\>, - *"' ^s
: -v
; , ' ' >v ^',* *' ^ *
0.738
0.295
0.517
2.40
3.00
3.53
3.23
3.10
4.67
2.30
4.23
-2.15
-0.85
0.31
-0.34
-0.63
2.76
-2.36
1.82
s , ; s> ^ww ซ^ ffyft s v v.^.^ <. s SA w A, ^- t
" * ,- - *l..^ >- ^ X ,'jsf t
3.67
2.40
2.77
2.60
2.90
3.20
" . ^ * ^
4.63
S'1''.'
3.13
', " -;
3.87
4.73
6.93
3.23
2.13
4.87
./>
4.27
'"
i '^ y
V' ! '.
3.07
5-^'-''
5.80
s ^;s s%-.v^y
s'j '>--;
>^, 4
\^
*j"
4.47
3.33
3.33
TAG SYMBOLS
= Determined to be an outlier
- V- -!---v' ^>'vง
0.60
-2.15
-1.35
- ;^*\ ., /*--. ,%%x\ "
->A ,-< ; ' v%" ^ \ " ^
-1.71
'<. ' "
-1.06
-0.41
!-:-';>>;;; & ; v ,- v^v,-^"
'>' <<"% " \,, ,0,^\ฐ, ' '; J-.'
2.69
'-"'V,y^^Yฃv
-0.56
ฃ>-. ' ' ' '" ' ..' "ซ> ^ ,/
' J\ ,*."' s V. %
X 0 "" A ^ "' ' ^ %"% * ^ '"''' ^ <
1.03
2.91
-. - , -^x"^^ s^. M.**' X ^
' . ^ '.->% ^ rf Q^T ^"*%\N .-,*-tiMv -^.
-0.34
-2.72
3.20
' '"" / /. of
B-.XC j.-'-s-t^-^^Cc^
- Sf.l-^*X,ri!^ซg*
--&^-;,/---ป
1.90
' ^ ' f" A'* \*,S%W^:
1- ^ ^ ' *'o^aa*Jป<**j'''Sj'f,*S
^ . VxV^^ ^$*SSLi&fi
fe^C^^^i
-0.70
"'^^"^^S^
"" "^"^2 ""
^ ^s ,, V ซNJ,fA <-*jJ-f%%*Jff? fs<*
X -, , > V - * \ V' -'-/- ' <;,v
^V^*?H^$$&g
v ~. -^ ^-^s .ggy^
s' _ /;,',,;"-Vi'j*,ป -, "-ซ^^M
^2~33
-0.12
-0.12
It s Above
-1.52
-0.22
0.94
0.29
0.00
3.39 It
-1.73
2.45
"*ฃ*<* ซ*V*v '")J<>^*<*!.Wwซ
5^ ^-'N ss^X '^ W&*
Wrt" ^V^ta'N^vv14
r^^c- s -* '
1.23
-1.52
,jฃ-,72,,
frsv ;'XV'""k ",,ts *' /-i
"-L08 '""*'"
'1C11'- "^' " =?
-0.43
0.22
-^W^/^T^f ฑZ&
?':'''' '* 'ซiV" %4-X >Vi"-;<>
ป*j> > vtKป!M&&. -, ซ!s - :
3.32 ft
S:fง:-^*iS
0.07
SJ";T"',\ '-"' ::
P'i'C"1;'- :' t1'*
1.66
3.54 It
i&MiyiiS!
0.29
-2.09
3.82 ft
"?- "^ ; '*''*
S'f^^^S^^S
15 i "" ^ *
^sf *",. > / s'"*"X j
* 2.53^
^^T^'T ฃ&$J3KZMt>$f
'im&&$'*%i&^v'? S
^^K%*lf^Mi-W
-0.07
^^'^i'-VI,' /^
5.85 ft
*s*rr;,a"!e>ปซ"" " -'-ri^s"
Jsy-i-^y , ' V*-V
^^^^^-l^t'1?^^!
ป^^^^^^
lliNt^ฐ'^8iงซซ^S9
2.96
0.51
0.51
control limit
II s Below control limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
19/30
Radium-228
Lab
Res. 1 Res. 2 Res. 3
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
s No data submitted
0 = Insufficient data
TAG SYMBOLS
x s Determined to be an outlier
Above control limit
Below control limit
-------
20/30
ESD-LV Performance Evaluation: Blind-A,
15-Apr-1997
Radium-228 1
Lab
MY
N
NA
NH
NJ
:- :
NK
NO
NT
0
OB
OF
OM
OS
OX
OY
P
PA;
PB
PD
t>/t
ป \x~-
PM
PQ
PR
PW
Q
QM
QP
QQ
QT
QU
QW
QX
QY
QZ
RD
RF
RG
RI
RK
RP
RR
RU
RZ
S
sc
Res. 1
i-: '>'',.- -
4.7
; / ' , '
3.2
3.7
' ^
2.4
3.3
3.6
" ''*Vv ""''.. '"'
_1.9
3'->;'<-;^v;? \ ',;
^ฃ"-tff .,,<. wS*' ^*V
''V,-;J:;V!Y''":
2.7
2.8
** *' - / i
*" " ^ ' "ฃ -V ^ '
4.2
'
3.5
3.5
\ ;
'' '* '-, <, ' *
-'ป/;-' ,. .>? >-.*'", ::
2.5
3.2
' ' , !;: - " "
2.1
? '" - '' "v '
3.5
5.6
' -;,"
.' *' ,,'*> ;. , '-
1.6
* " ,,"'-.ฃ
r " "f ' ^
'" ' .
h '' '
2.6
2.8
3.7
Res. 2
;* -, ' "'-' ', ', ' '-:
5.6
, , . -,, *>'J4s'ปJ^> * '.
*'; ,'-{-'-' / ' -'/T< V<"
2.7
3.6
, -'" '"''
2.7
3.4
3.5
>^^^ij .
2.1
;;XSC^'7|lk
\ */j$*$$&ij$$i$?$j$$'- <
-:*i '^-''3S' >^VvA
2.8
-" 'f^'^'t-T;;
1.7
/' i'-Cx-', -" *?*?ฃ.* '"
'^1.'."'-''^-.^^
^ V , \ ^
< z,' ' > ' ^ 'l
,,,-, -;
' -. ^ ' ' '
- , , ; - - - ; ,
- ", -- - ,*i
3.8
3.4
'-,', *f -^ "* '"C
'^f&^gLl
"f"^"^',\A'^h^"^
-t^^ij>^4
2.9
3.1 _
, V'- !f'' ^Vc""rii
',_w 3.0
ซ' ; v^^^r^f ^
3.7
..^,.3bSL~,
,'?'t-'i-^i''^'
' T Tfj^^v?*
' J^V""-^',f^
1.4
-""-'a:v^V'^
/ :<' *Vff ฅ '>**
, > * WV*! ' A<' , f '
f /' ^ .>**'
-/-' -""' f:%
- ,-,-- -;- ซ<,<>:
2.7
2.6
4.2
Res. 3
',r- 'V * * /
3.7
ฐ "-", / ป*ปซ" v
3.4
3.5
3.0
3.5
2.2
2.3
2.9
'^? *A
2.8
> y s ^-^- ,'v'
; A" <|'*NS'X'V^ )
^" ;f,2'm
i yi^. X '*!- V *
Exper.
Sigma
0.95
5^. ;{ ,- ,v
0.36
0.10
0.30
0.10
0.78
0.20
0.10
0.64
r,:. - -
a23
' ' ''
V" ' v \' r" v^s '
"V - "/
' ^ .. --\
'; ;
3.4
3.3
f-v^''' ' . ,. V-^
tSfr ^" f
, w^"---'"Sซ
- s ' '' -. '
0.21
0.10
^ s t
*ฎJ rf "' S%'V'
^/^ '" '"^ ' '' ^ '
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known)
,'
1.767
%1 '*''- ""* *
0.517
0.148
- -
0.443
0.148
1.064
"*>; -i",c *~ ''-%
0.295
t\/,' *^ป ^v "/
J ^V- ^ '' " ^ N ' W % ' ^ s ^ ^" *'' V ^
s " f - ';
"" '* ' -/-. '* .
" ''',,' " - /
0.295
0.148
,'"?"'**; \'~~'
^;,;S-!l2J^!J
4.67
f * /^.h A ^.
3.10
3.60
-.<',-
2.70
3.40
3.10
s^-rn?^ ;
'' '- ,1>'"\ ""
2.10
's -,WA "o*.*^
v' v;^- - '
'&/'- ^x**yป.
:Vi *. '?:
2.80
2.43
* ^V> V" ..
4.33
;-:'-" --"-. '> \
,"*'
'-. " t ' ''''' i
,> __ ,%"< j -
3.57
3.40
~ฃt~v"",^ '
'.->;'' :^;"
2.76
''^ > % * *.* %J *
, - '-,- "--, ww^'
-0.63
0.45
's h1^' \ i' v A s *- N" ,' t " ^ j
:.:* V.^^
-1.50
0.02
-0.63
^^'^T'T1''^:'^^^ 'S^?
'12.79'**
"^'^FTJ1
s^^i>^>^V/<-^t^:'S Jw""'iaSxii
,s"l" VtiaA^?^^
-1.28
s - v"^ >1 -'''>'T''N^'''W\
-2.07
^^|pg:^
2^04
"^'l^'l?1^
- J" * ',' 'o *"^-;A
;ฐ" %^' \^'" '-^f^xU
"'*, r-:rปC-,i^
" ^ '.$. > ^'ป --\
j"<' '. ;*
3.39
VxCX jfei^ *? ^-i
ft'lr^wW*
0.00
1.08
iSll
-0.87
0.65
0.00
nmspf!^
-izl?"
i^^^r^
-0.65
W^!^f
^C^i ^ ''-'' ^ V
-1.44
2.67
ง^8 ^ป|
V. '' v
iWi
ijii^
ซ&? (df^Sj
v^^nV "J?fปj , fciC"
-: S!>X-> ^^'.-. ,.- ซv '"*:
,,,;-,, , -ซ- '- '^ ., y, 5 ,,-fe i> - 4>
- -^ ; - \- -i ',;* "S - '- - A*fts> '?-
/\^:4^^v>^'x--Sn
>" "' ,:'ฐ5 '^x
0.38
0.02
' \ --^^ ''''''V' t ' '''"S''^li"
>*ซ;>
ซฅ<$ป"*>!,
-:<-*?v>r"
.^%^-Jl;^*^*'
1.01
0.65
SfWS^
v,>"i..,v,-^i'l
;-tv; ^C
ri"rr.~-ซ
fel*^f
W T* ;" ||
i^K
^^%t^Jr *<> ? t^S'^^v'-K^^i^^^'^^^^^W^^^^^
" 2.6
..^3.^
r^fff5^1'
"** ?^ '
^^
3.9
3.8
2.0
s"s ' '" ^
S1^ -
2.9
3.8
3.8
s No data submitted
0 3
Insufficient
data
X 3
0.21
0.38
Yyป.y.v ~
0.52
0.20
1.33
0.31
0.15
0.64
0.26
0.295
0.517
..,.,^ ,..
0.665
0.295
2.752
' ^ ^ ^ ^
0.443
- " ;,,'";^" ,' "" ;
\~ '" , , '"
0.222
0.886
0.369
2.67
3.37
<-. "*-* *
2.40
"''
3.70
4.13
i
1.67
, ^^ .
2.73
3.07
3.90
TAG SYMBOLS
Determined
to be an outlier
-1.57
_;0.05^_
ITtJ^f^S
-2.15
-.ป.-'* xjr^"*,^^ฅ:>nwซ
>*ซ>'/ *fN*4j ,
' ^ \'.'ff ^ ^* y&gs-.^:
0.67
1.61 ^
V-""^',-, ^
-{> *'>\'^
,v - , '"<.' ';, m
-3.73
" ^-^SFP
^ " : - - &M-
h > >J:/'W'*>i
s ,>,% '%*T. *,
'ปl\v > 4*d&>
%*x^*i;'',"%*
!*ป!|ปr* ?** iftsft
,w ป^
kw^^v
jlyiA-*
f
fe"" *:W
I%'5^M
limit
limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
21/30
Radium-228
Lab Res. 1
Exper. Rng anal Normalized deviation
Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
SD
SF
3.1
2.7
2.8
3.1
3.0
3.6
0.15
0.45
0.222
0.665
2.97
3.13
-0.92
-0.56
-0.29
0.07
-1.42 -.79
jฃ!L.., >,- 2^;^^, 2.8 2.6m ^ 0.12 0.148 2.73 ____ _..._
SM. 2.9 4^0 4.1 0.67 0.886 3.67 0.60 1.23
2.189
1.345
0.665
0.517
3.033
- , , ;,,"^ -
v>, ^., - . ^\ \ % V-K V ' -^
0.222 3.23
3.0 3.1
4.2 4.7
4.2 3.0
3.03
4.40
3.33
0.06
0.26
0.76
s No data submitted
0 s Insufficient data
TAG SYMBOLS
Determined to be an outlier
IT s Above control limit
II = Below control limit
-------
22/30 ESD-LV Performance Evaluation: Blind-A, 15- Apr- 199 7 |
Radium-228
Data sorted by Laboratory Average
Average Tag^
1.20 U
1.67 Jl
2.10
2.10
2.13
2.30
2.40
2.40
2.40
2.43
2.60
2.60
2.63
2.67
2.67
2.70
2.70
2.73
2.73
2.77
2.80
2.83
2.90
2.97
3.00
3.00
3.00
3.03
3.03
% responding labs
A ' -k
-o -4
Lab
FN
RK
OF
ED
CG
AL
QX
AZ
A
P
BC
SX
EB
QT
GQ
U
NO
SI
RZ
BA
OX
I
BH
SD
LT
L
AE
WH
HK
Average Tag
3.07
3.07
3.10
3.10
3.10
3.10
3.13
3.13
3.13
3.20
3.23
3.23
3.23
3.27
3.33
3.33
3.33
3.33
3.33
3.37
3.37
3.40
3.40
3.43
3.47
3.53
3.57
3.60
3.63
Frequency distribution
Jt 1 '"
.-.1. ll.-ltl-l.il
I T I T
Lab
S
DB
TQ
0
NH
AJ
SF
BO
EO
BK
W
CE
AH
UP
WR
UQ
TN
E
DZ
T
QU
Q
NT
HL
SS
AF
PW
NJ
M
Average
3.67
3.67
3.70
3.87
3.87
3.90
4.03
4.10
4.13
4.13
4.23
4.27
4.33
4.33
4.40
4.47
4.63
4.63
4.67
4.67
4.73
4.80
4.87
5.27
5.63
5.80
6.33
6.93
7.10
----- !.
J2 T
Tag
ft
ft
ft
ft
ft
ft
ft
ft
ft
ft
X
X
X
Lab
SM
AW
QZ
VI
C
SC
HP
K
RD
JY
AP
CS
PB
JS
WO
DT
TD
BM
N
AK
CA
EL
CJ
VH
SZ
DE
X
cc
VA
i I
+6
Normalized deviation of the mean from the known value
s No data submitted
0 s Insufficient data
TAG SYMBOLS ft -
x a Determined to be an outlier & a
Above control
Below control
limit
limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997 23/30
Radium-228
% responding labs Frequency distribution
-
T T-
Normalized deviation of the mean from the grand average
-------
E8D-LV Performance Evaluation: Blind-A, 15-Apr-1997
24/30
Uranium (Natural) Statistical Summary 181 Participants
The known value of this nuclide is 24.0 pCi/1 with an expected precision of 3.0; the control limits
are 18.8 to 29.2; the warning regions are 18.8 to 20.5 and 27.5 to 29.2
70(38.7 %) Palled to respond; ^^^^^^^^ ~^\ 94(51.9 %) Within all HmKซ
10(5.5%) Outliers-'
Statistic
Respondents
--- 7(3.9 %) 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
26.31
31.28
978.73
118.89
9.64
0.07
23.33
-2.78
-0.02
Grand Avg 23.47
1.62
2.63
6.91
-2.23
-0.33
23.33
-2.78
-0.41
10(9.0 %) Mora than 3 norm. S.D.
7(6.3 %) Between 2 and 3 norm. S.D
78(70.3 %) Within 1 norm. S.D.
of known value
16(14.4 %) Between 1 and 2 norm. S.D.
-------
25/30
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997 , |
Uranium (Natural)
Lab
A
AE
AF
AH
AJ
AK
AL
AP
AR
"*AtJ(t
AW
AZ
BA
BB
BC
BG
BG
BG
BH
BK
BL
BM
BN
BO
B8
BW
C
CA
CC
CE
CG
CJ
C&T
CO
CJP--'-
cs
ex
D
DB
" mi"1!
Mfmf -
DE
DI
DO
TVtt^
Res. 1
24.8
24.5
23.0
22.2
23.4
23.6
26.1
25.6
21.6
M/t^ty' i^ffiif^fa
I' +*'s> '
23.7
24.0
23.4
22.7
23.5
22.9
24.0
24.5
23.7
23.8
~: -, v>;-f7/
24.3
23.0
22.4
, " "ป \ .. ' ~V *i.
'Vr<7'":- \;';4-
22^2
26.6
^'ao&SS
23.5
22.8
24.0
s" % "
20.2
' - ."'- v''- V-' C>*
21.9
27.2
24.4
18.5
'A&. ''*'&. -' '^
' " ,*' ' ' "", ', !
22.5
24.2
23.3
-> __.'/' v .C^/1 ''" xv
Res. 2 Res. 3
24.5
24.6
25.6
22.3
20.3
24.7
26.8
28.0
21.2
^f^yiw "% ฃ$&$&$%*:
22.5
22.9
23.9
22.4
23.6
23.2
25.0
24.8
22.2
-. ,23;7,-,,.>^
'f.:v:r-/T^'*'"
23.5
29.7
18.6
-v^-S*la-^
^-^rl^n^^
24.1
26.7
ff"^8i4tt|L|!
25.0
24.2
,,_23_.0_^_
; > ' *'" .Vt*''- - ~" :i>^
^^JMLS __ "
''2t;lf^^2^&ป
21.9
26.3
22.6
22.3
^y^* T^VJ>;J">^^
V ^% ^ ' v
22.6
23.9
23.4
2f<.-'f*/^^*">^ " '*/*, ' *,'
24.1
24.8
27.5
22.7
23.5
26.0
27.2
26.4
21.6
22.8
23.5
25.4
22.6
23.3
22.6
23.6
27.0
22.6
23.7
*y*T?-?y ,
22.2
26.2
18.7
ci^S^ฅ
^ฑzง,
2LO
27.2
23.9
23.7
23.0^
'!$ft#T
'21.0'^
||Jtv|l1pf;^
22.4
27.6
23.5
19.7
^ vi:"t'<-?r"'i
" ": ', - '"
22.7
24.1
22.6
s%^ V"^'"" * "" '"
Exper.
Sigma
0.35
0.15
2.26
0.26
1.82
1.20
0.56
1.22
0.23
aฃป*?<>' "^ "
*Sฎt: ;;' '; ' '
0.62
0.55
1.04
0.15
0.15
0.30
0.72
1.36
0.78
0.06
""
1.06
3.35
2.17
, *^;ฃ '*,;* , ,'
yiS"^-^ ':
1.56
0.32
|3^-'ฃ^,- ':
*" 0.78
0.71
W...ปJฐ,-?ฎ
^7^-f *:-'>.' '-*"
0.42
%:ปS'v": v- ' '
0.29
0.67
0.90
1.94
ฃi>X -
0.10
0.15
0.44
"V'0''^'"'
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tae
0.138
0.059
0.886
0.098
0.630
0.473
0.217
0.473
0.079
0.236
0.217
0.394
0.059
0.059
0.118
0.276
0.492
0.295
0.020
0.413
1.608
0.748
0.610
0.118
0.906
0.295
0.276
0.197
0.158
x t -i %
0.098
0.256
0.354
0.748
,,,;-V '"
0.039
0.059
0.158
24.47
24.63
25.37
22.40
22.40
24.77
26.70
26.67
21.47
" " ' * <^*, %'"^, -
23.00
23.47
24.23
22.57
23.47
22.90
24.20
25.43
22.83
_ 23.73^^
23.33
26.30
19.90
'v j w \ '
- '- <** : - ': '
22.43
26.83
*?f 'f0il^/'
24.13
23.57
23.33
, ' ' +''< "v' ?-'-
20.67
--;', ,i \s- \'-'r
22.07
27.03
23.50
20.17
'.,,_ - '';<-'>' '->-- : -
' "2 ,
22.60
24.07
23.10
^ ฐ ' ,
UHT ^ 4 '-.' ,,- ^ ~* ' *> 7*'^ * - s AA ^ ; *, ,V V - -T '",' ' ' ซ ' ' *, , ' t -< * ' " " ' ฐ-"
DT
=
0 s
23.9
22.0
22.7
No data submitted
Insufficient
data
X 3
0.96
0.374
22.87
TAG SYMBOLS
Determined
to be an
outlier
0.58
0.67
1.10
-0.61
-0.61
0.75
1.87
1.85
~- -H5^
" ' ' '* \ ; '" ""^' "
-0.27
0.00
0.44
-0.52
0.00
-0.33
0.42
1.14
-0.36
0.15
V^^-T^p^?
-0.08
1.64
-2.06
,?-!r^:?'b?
:.>yc-,-Vt^v'-''
-0.60
1.94
' '"Hjtt^v
0.39
0.06
_ _-0.08_^;
% "T " T^T,"; "^S
^ -1.62 '^^
>Tc4ฐ>J % ?'-:^
-0.81
2.06
0.02
-1.90
j
-0.81
0.04
,^H^~^>
/.v,,.' 7^ ^.. ," ''>A ฐ" "A^ v^i/ ^
*. " *V- '7"- ' ^: - ; """">* /'^
-0.65
control limit
control limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
26/30
Uranium (Natural)
Lab
Res.!
Res. 2 Res. 3
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
^f^^^^^^^^r^^^^r^^x'--- -\-rto* -sti-f \.^-= T^^\^r^?3?^^^?^?5^!^^^^&^w^n^
23.6 19.2"' 16.5 " 3.58 ' 1.758*' 19.77""""*' '-2.14"""" ""-2.W
22.6 23.8 23.0 0.61 0.236 23.13 -0.19 -0.50
SSV^V-^^^. x S \S\ W..W * ซ^v^vWw. s^v. > -^M^u. w w-yw^y^. v. VU,VS \* -(^ ,.
9 No data submitted
0 3 Insufficient data
TAG SYMBOLS
x s Determined to be an outlier
Above control limit
Below control limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
Uranium (Natural)
Exper.
Sigma
Rnganal
(R + SR)
Normalized deviation
Average (grand-avg) (known) Tag
26.30
23.33
28.23
25.10
21.60
24.50
-'^ />-' ~>^>f-$Av;-^t!^
23.87 0.23
/r.,r, v^nt^~-7>
, >-- -\i>'^f-rK^
" :\: f'V^'":";;?;^
21.83 -0.94
24.1 23.7
25.0 24.8
23.8 22.5
1T = Above control limit
a Below control limit
TAG SYMBOLS
x a Determined to be an outlier
No data submitted
0 3 Insufficient data
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997
28/30
Uranium (Natural)
Exper. Rng anal Normalized deviation
Lab Res. 1 Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
S
SC
SD
SF
86
SI
SL
SM
SN,
SO
SS
SX
SZ
T
TD
TQ
U
UP
VA
vc
VH
VI
VJ
VM
VO
VT
W
22.7
24.2
23.1
23.0
24.9
23.0
20.4
20.2
25.4
22.2
22.1
24.8
23.3
22.1
23.5
20.5
21.8
25.2
22.1
22.3
24.1
24.0
22.3
26.0
27.0
19.9
19.6
**%f- VT"
25.0
22.8
22.4
23.4
23.2
24.3
22.7
23.7
22.5
24.3
22.8
23.0 24.0
WH
WO
WR
22.3^
23.8
23.7
22.2
22.6
24.9
23.4
22.2
XA
XC
25.4
21.3
23.4
21.5
22.3
23.2
23.7
22.8
24.1
25.0
20.8
19.9
24.1
21.9
21.7
21.5
23.4
24.5
22.3
24.5
22.0
22.8
23.0
23.4
22.6
21.3
24.0
22.7
22.2
21.5
0.23
0.55
0.46
0.36
0.079
0.197
0.177
0.138
22.43
23.83
23.60
22.70
-0.60
0.21
0.08
-0.44
-0.90
-0.10
-0.23
-0.75
0.95
2.00
0.45
0^30
0.374
0.788
0.177
0.118
25.00
25.00
20.37
19.90
0.89
0.89
-1.79
-2.06
0.58
0.58
-2.10
-2.37
039 23.30 -0.
U.Dl U.43O Z4.OO -U.OO -U.Of
, " -,,~'T~, "?"% -:;>r\ rv"?~7^^T!^~'^^^^
: ,s\ \-SLV- >' -v,\ . ปUv r \ k''"v,AC,*.f*ฐ' ^^\t;fl:" /^ ^T x"- x>-ss
, , ;, - - : , -,-?>ป-! v>>>-, \s,v\x- --^,-!\^^ -vx~-, \ **-*-'-,-\ -
.''.-.:''':-:' ~ -?-ซ -' V * 5 ^^^:'^-^wk^^^ %:HX^N>.*^^"^
2.12 0.788_ 22.90 -0.33 -0.64
- vf; - ^ ^?r ซr: yg::%;- -t^^^gps^;:^
* Orfc2ซ,t,r |^O82?;<^^
rป oc n IOQ oo in _n 7Q _i in
0.36
1.21
0.47
0.50
- ;
0.17
;; s - =*
1.62
0.12
v -;j;;,:
;-^>^^^^^^l>l^fe^-^f _
6.138 22.10 -0.19-1.10
24.10 0.37 0.06
0.473
0.177
22.63
-0.48
-0.79
V/fV", 1"'.' -''"^y"~"\'~^~y.-rr ?"*'
XCซ r v,,^;,\^-:>'rs - -r -
^ ^^^ ^ \- C il' ".-. '<- "< ^ ^ \ - "-" ^ "
or^Hx%^;5:;-v ,,!-;r:
XD
s No data submitted
0 s Insufficient data
TAG SYMBOLS
Determined to be an outlier
tl 3 Above control limit
Ji s Below control limit
-------
29/30 ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997 ]
Uranium (Natural)
Lab Res. 1 Res. 2
Average Tag
4.13 x
9.13 x
11.87 x
12.93 x
14.67 x
16.03 x
17.63 x
19.77
19.90
19.90
20.17
20.23
20.37
20.67
21.30
21.43
21.47
21.60
21.83
22.07
22.07
22.10
22.30
22.37
22.37
22.40
22.40
22.43
22.43
22.50
22.50
22.57
22.57
22.57
22.60
22.63
22.63
= No data submitted
0 a Insufficient data
Exper. Rng anal
Res. 3 Sigma (R + SR)
Normalized deviation
Average (grand-avg) (known)
Data sorted by Laboratory Average
Lab Average Tag Lab Average Taar
FJ
QX
M
JN
PW
HK
NT
HL
SO
BO
DB
PG
SM
CO
DZ
XA
AR
NK
OS
CS
SZ
VC
sx
PB
WR
AJ
AH
S
c
w
JE
Q
L
BB
DE
VI
JY
22.67
22.70
22.77
22.83
22.83
22.83
22.87
22.90
22.90
22.97
23.00
23.07
23.10
23.13
23.23
23.30
23.30
23.33
23.33
23.33
23.33
23.37
23.47
23.47
23.47
23.47
23.50
23.53
23.53
23.57
23.60
23.63
23.67
23.70
23.73
23.83
23.87
TAG SYMBOLS
LF
SF
JS
U
P
BH
DT
UP
BG
K
AW
FE
DO
HP
T
TD
EL
WH
NA
CJ
BM
RG
VO
ID
BC
AZ
D
RR
QZ
CG
SD
TQ
X
WO
BK
sc
RZ
23.87
23.93
24.07
24.07
24.07
24.10
24.13
24.17
24.20
24.23
24.47
24.50
24.63
24.77
24.83
25.00
25.00
25.10
25.13
25.23
25.37
25.37
25.43
25.47
25.57
25.60
26.30
26.30
26.33
26.67
26.70
26.83
27.03
28.23
40.27 x
78.20 x
346.00 x
It a Above control
x a Determined to be an outlier JJ a Below control
Tag
i
Lab
OB
QY
QQ
E
DI
VH
CE
RK
BG
BA
A
NO
AE
AK
SS
SL
SI
NJ
RP
I
ER
AF
BG
EB
GQ
QU
N
BN
KT
AP
AL
CA
CX
NH
VA
CC
RD
limit
limit
-------
ESD-LV Performance Evaluation: Blind-A, 15-Apr-1997 30/30
Uranium (Natural)
% responding labs __ Frequency distribution
10-
-6 -'4 -2 6 +2 ' -t4 +6
Normalized deviation of the mean from the known value
% responding labs Frequency distribution
10-
T
-2
-i " -4 -2 0 " +"2 '
Normalized deviation of the mean from the grand average
------- |