EPA
United States
Environmental Protection
Agency
Environmental Monitoring
Systems Laboratory
P.O. Box 93478
Las Vegas NV 89193-3478
EPA600/R-92/140
July 1992
Research and Development
Performance Evaluation-B
Intercomparison Study
A Statistical Evaluation of the
April 14, 1992 Data
5168GR92NRD-12
-------
Performance Evaluation-B
Intercomparison Study
April 14, 1992
Environmental Protection Agency
Environmental Monitoring Systems Laboratory
Las Vegas, Nevada
-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
ENVIRONMENTAL MONITORING SYSTEMS LABORATORY-LAS VEGAS
P.O. BOX 93478
LAS VEGAS, NEVADA 89193-3478
(702/798-2100)
Dear Participant,
Enclosed are the results of the Nuclear Radiation Assessment Division (EMSL-LV)
Intercomparison Study for Performance Evaluatlon-B; April 14, 1992.
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 Frank Novielli at 702/798-2159 or Patricia Honsa at 702/798-2141.
Sincerely,
Frank Novielli
Senior Chemist
Radioanalysis Branch
Enclosure
-------
NOTICE
This material has been funded wholly by
the U.S. Environmental Protection Agency.
It has been subject to the Agency's review,
and it has been approved for publication
as an EPA document.
-------
1/44 EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992
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
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. 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. The eighth and ninth columns are the differences from
the mean of all non-outliers and from the known value, respectively. 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.
-------
EMSL-LV Lntercomparison Study: Performance Evaluation-B, 14-Apr-1992 2/44
Gross Beta
Statistical Summary
204 Participants
The known value of this nuclide is 140.0 pCi/1 with an expected precision of 21.0; the control limits
are 103.6 to 176.4; the warning regions are 103.6 to 115.7 and 164.3 to 176.4
52(25.5 %) Failed to respond %%
5(2.5 %) Outliers '
26(12.7 %) Out of control '
but not an outlier
Statistic
85(41.7 %) Within all limits
Respondents
36(17.6 %) 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
129.50 Grand Avg 118.11
127.48 16.91
16251.70 286.04
98.45 14.32
-7.50 -15.64
-0.08 -1.29
118.67 118.67
-15.24 -15.24
-0.17 -1.26
31 (2O.4 %) More than 3 norm. S.D..
36(23.7 %) Between 2 and 3 norm. S.O.
. 33(21.7 %) Within 1 norm. S.D.
of known value
52(34.2 %) Between 1 and 2 norm. S.D.
-------
3/44 EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14- Apr- 1992
Gross Beta
Lab Res. 1
A
AB
AE
AF
AT
AJ
AK
AL
AO
AF
AR
AU
AW
AZ
BA
BC
BG
BH
BK
BI*
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CM
CO
CQ
CS
D
DB
DD
DE
DJ
DL
DM
DS
DT
=
0 m
117.0
*
97.0
121.0
120.0
117.0
117.0
126.0
118.0
234.0
117.0
131.0
109.0
129.0
118.0
121.0
86.0
110.0
122.0
" ' " ,
129.0
105.0
129.0
128.0
92.0
128.0
116.0
140.0
133.0
96.0
134.0
''**' '*""*""' "v **
101.0
132.0
116.0
132.0
115.0
137.0
113.0
109.0
112.0
120.0
130.0
Res. 2
112.0
*
103.0
121.0
120.0
112.0
117.0
130.0
114.0
233,0
122.0
132.0
106.0
123.0
118.0
120.0
82.0
111.0
114.0
,
128.0
109.0
133.0
128.0
70.0
123.0
109.0
143.0
126.0
98.0
130.0
'" "'
89.0
133.0
119.0
130.0
111.0
139.0
113.0
113.0
113.0
120.0
132.0
Res. 3
119.0
' ',
101.0
121.0
120.0
120.0
116.0
126.0
116.0
m&
127.0
134.0
108.0
127.0
131.0
148.0
70.0
108.0
120.0
- , , ...... ..
124.0
111.0
128.0
133.0
94.0
120.0
114.0
137.0
138.0
100.0
131.0
, ', /','
102.0
127.0
118.0
130.0
118.0
140.0
114.0
110.0
121.0
120.0
134.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
3.61
3.06
0.00
0.00
4.04
0.58
2.31
2.00
2.66
5.00
1.53
1.53
3.06
7.51
15.89
8.33
1.53
4.16
2.65
3.06
2.65
2.89
13.32
4.04
3.61
3.00
6.03
2.00
2.08
V* f f
7.23
3.21
1.53
1.15
3.51
1.53
0.58
2.08
4.93
0.00
2.00
Rng anal
(R + SR) Average
0.197
0.169
0.000
0.000
0.225
0.028
0.113
0.113
0.141
0.281
0.084
0.084
0.169
0.366
0.788
0.450
0.084
0.225
0.141
0.169
0.141
0.141
0.675
0.225
0.197
0.169
0.338
0.113
0.113
0.366
0.169
0.084
0.056
0.197
0.084
0.028
0.113
0.253
0.000
0.113
116.00
.- ,
100.33
121.00
120.00
116.33
116.67
127.33
116.00
zmM
122.00
132.33
107.67
126.33
122.33
129.67
79.33
109.67
118.67
f
127.00
108.33
130.00
129.67
85.33
123.67
113.00
140.00
132.33
98.00
131.67
' ' '
97.33
130.67
117.67
130.67
114.67
138.67
113.33
-
110.67
115.33
120.00
132.00
TAG SYMBOLS
Determined to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
-0.17
'/' , ' " ,
-1.47
0.24
0.16
-0.15
-0.12
0.76
-0.17
9.64
0.32
1.17
-0.86
0.68
0.35
0.95
-3.20
-0.70
0.05
0.73
-0.81
0.98
0.95
-2.70
0.46
-0.42
1.81
1.17
-1.66
1.12
'
-1.71
1.04
-0.04
1.04
-0.28
1.70
-0.39
-0.61
-0.23
0.16
1.15
ft = Above
JJ. = Below
-1.98
ป
-3.27 U
-1.57
-1.65
-1.95
-1.92
-1.04
-1.98
VM X
-1.48
-0.63
-2.67
-1.13
-1.46
-0.85
-5.00 11
-2.50
-1.76
ป
-1.07
-2.61
-0.82
-0.85
-4.51 U
-1.35
-2.23
0.00
-0.63
-3.46 U
-0.69
*
-3.52 U
-0.77
-1.84
-0.77
-2.09
-0.11
-2.20
*
-2.42
-2.03
-1.65
-0.66
control limit
control limit
-------
EMSL-LV Intercomparison
Study: Performance Evaluation-B, 14-Apr-1992 4/44
Gross Beta
Lab
DZ
E
EB
EH
EK
Ifttx
EO
I5U-
EV
MSt
FE
FF
FJ
FL
FN
FU
WW
FZ
GE
GI
GQ
GT
GV
GZ
HH
m
HK
HL
HK
HP
mi
HY
I
IA
1C
ID
IE
W
J
JE
JG
JH
JN
JQ
JS
=
0
Res. 1
139.0
121.0
118.0
125.0
107.0
f f ff f
113.0
' ' ' '
99.0
,
110.0
117.0
153.0
100.0
117.0
94.0
f f f
87.0
110.0
f
114.0
129.0
' '' " -, '
150.0
120.0
}i44o
133.0
128.0
113.0
130.0
117.0
, ' - '-, ""J\
125.0
104.0
115.0
-
122.0
135.0
121.0
151.0
138.0
133.0
Res. 2
136.0
121.0
119.0
121.0
119.0
, '/ป'/ - '''
110.0
'"' ' -'
102.0
'*- '' * *
120.0
114.0
172.0
113.0
123.0
93.0
f s "
71.0
113.0
f f f
112.0
127.0
' ' ' '.
148.0
126.0
' 193&0 ";
133.0
128.0
/?/:: '^ '?';,;
116.0
136.0
115.0
'^ -'*'*', %1
118.0
104.0
122.0
121.0
138.0
124.0
151.0
125.0
139.0
Res. 3
142.0
120.0
119.0
124.0
86.0
-fC''\i&
111.0
f f '? *
101.0
' V f
120.0
111.0
178.0
106.0
114.0
92.0
""
85.0
109.0
110.0
131.0
' '"' t
147.0
124.0
; 191&0
134.0
128.0
' * '<,&/, '"'
121.0
134.0
118.0
f *ff* f * f
135.0
84.0
118.0
124.0
139.0
126.0
148.0
110.0
131.0
No data submitted
Insufficient
data
vv -
Exper. Rng anal
Sigma (R + SR) Average
3.00
0.58
0.58
2.08
16.70
' / ' v
L53
' / ',
1.53
' '
5.77
3.00
13.05
6.51
4.58
1.00
ff f f
8.72
2.08
2.00
2.00
,
1.53
3.06
401.10
0.58
0.00
4.04
3.06
1.53
8.54
11.55
3.51
1.53
2.08
2.52
1.73
14.01
4.16
0.169
0.028
0.028
0.113
0.928
'"- -':'",
0.084
..
0.084
-
0.281
0.169
0.703
0.366
0.253
0.056
*
0.450
0.113
0.113
0.113
0.084
0.169
41,634
0.028
0.000
0.225
0.169
0.084
0.478
0.563
0.197
0.084
0.113
0:141
0.084
0.788
0.225
139.00
120.67
118.67
123.33
104.00
,?/, -?'ฃ'* *
111.33
/ <
100.67
f *""*
116.67
114.00
167.67
106.33
118.00
93.00
** **
81.00
110.67
112.00
129.00
f
148.33
123.33
', '' 1664.67
133.33
128.00
116.67
133.33
116.67
f
126.00
97.33
118.33
122.33
137.33
123.67
150.00
124.33
134.33
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
1.72
0.21
0.05
0.43
-1.16
'^rC7;^r'T r
-0.56
'' ''/', ' ''
-1.44
f
-0.12
-0.34
4.09
-0.97
-0.01
-2.07
'
-3.06
-0.61
-0.50
0.90
2.49
0.43
-0.08
-1.59
-1.76
-1.37
-2.97
', * , t +': ,
-2.36
' ' ป
-3.24 li
*
-1.92
-2.14
2.28
-2.78
-1.81
-3.88 II
-4.87 If
-2.42
-2.31
-0.91
*
0.69
-1.37
"' 127.66 12S.75 x
1.26
0.82
,
-0.12
1.26
-0.12
0.65
-1.71
0.02
0.35
1.59
0.46
2.63
0.51
1.34
tt s Above
11 & Below
-0.55
-0.99
*
-1.92
, . *
-0.55
-1.92
m
-1.15
-3.52 II
-1.79
-1.46
-0.22
-1.35
0.82
-1.29
*
-0.47
control limit 1
control limit j
-------
5/44 EMSL-LV Intel-comparison Study : Performance Evaluation-B, 14-Apr-1992
Gross Beta
Lab
ซlฅ
K
KG
KE
KF
8M
KX
KZ
L
US
LF
LG
LM
LR
LT
LX
M
MA
ME
MN
M0
HP
MQ
MS
MV
MIT
N
NA
NG
NH
NI
NJ
NK
NO
NT
O
OE
OF
OL
OM
OS
OX
OY
P
Res. 1
2QQ&
89.0
104.0
123.0
101.0
124.0
110.0
110.0
125.0
117.0
115.0
134.0
105.0
98.0
'
,
117.0
95.0
126.0
2i&&
105.0
120.0
105.0
108.0
103.0
172.0
116.0
90.0
121.0
121.0
130.0
118.0
t
163.0
112.0
146.0
Res. 2
,190*0
81.0
fff
104.0
, , ,
126.0
99.0
126.0
120.0
120.0
121.0
129.0
115.0
,
135.0
118.0
104.0
' ,
119.0
93.0
127.0
id&o
107.0
125.0
104.0
116.0
97.0
183.0
110.0
87.0
123.0
122.0
129.0
122.0
162.0
109.0
113.0
Res. 3
216,0
82.0
f
98.0
'
128.0
100.0
126.0
111.0
120.0
129.0
'
130.0
114.0
-
135.0
114.0
111.0
_.-. f
f f
120.0
85.0
132.0
218.0
109.0
130.0
97.0
131.0
100.0
171.0
115.0
87.0
124.0
123.0
131.0
125.0
161.0
*
107.0
116.0
= No data submitted
0 =
Insufficient
data
X s
Exper.
Sigma
13.11
4.36
, -
3.46
"f
;, ..,,, ,
2.52
1.00
1.15
5.51
5.77
4.00
7.23
0.58
f
0.58
6.66
6.51
%
1.53
5.29
3.21
1&20
2.00
5.00
4.36
11.68
3.00
6.66
3.21
1.73
1.53
1.00
1.00
3.51
1.00
2.52
18.25
Rnganal
(R + SR)
0J31
0.225
'
0.169
, ,
0.141
0.056
0.056
0.281
0.281
0.225
0.366
0.028
0.028
0.366
0.366
*
0.084
0.281
0.169
o.foa
0.113
0.281
0.225
0.647
0.169
0.338
0.169
0.084
0.084
0.056
0.056
0.197
0.056
0.141
0.928
Normalized deviation
Average
26SL00
84.00
''
102.00
..;
125.67
100.00
125.33
113.67
116.67
125.00
'
125.33
114.67
,.
134.67
112.33
104.33
,,
'
118.67
91.00
128.33
208,00
107.00
125.00
102.00
118.33
100.00
175.33
113.67
88.00
122.67
122.00
130.00
121.67
162.00
109.33
125.00
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
, - QM
-2.81
'
-1.33
,
0.62
-1.49
0.60
-0.37
-0.12
0.57
0.60
-0.28
1.37
-0.48
-1.14
,
0.05
-2.24
0.84
7.41
-0.92
0.57
-1.33
0.02
-1.49
4.72
-0.37
-2.48
0.38
0.32
0.98
0.29
3.62
-0.72
0.57
It s Above
li s Below
$.11 x
-4.62 U
ซ
-3.13 JJ
*
,, #
-1.18
-3.30 U
-1.21
-2.17
-1.92
-1.24
* ;
-1.21
-2.09
*
-0.44
-2.28
-2.94
ซ
ป ;
* :
-1.76
-4.04 II.
-0.96
5,03. x
-2.72
-1.24
-3.13 &
-1.79
-3.30 11
2.91
-2.17
-4.29 11
-1.43
-1.48
-0.82
-1.51
ซ
ป
1.81
*
-2.53
-1.24
control limit
control limit
-------
EMSL-LV Intercomparison
Gross Beta
Lab
PB
pd
PG
-Ft:
PM
PP
PQ
PR
P0
PV
PW
FY
Q
QC
QK
QP
QQ
QT
Qtr
QW
QX
<1Y
QZ
RC
RD
RE
RF
RG
RJ
RK
RM
;B*T
Res. 1
134.0
"", ' ,':''
134.0
* "....
100.0
103.0
93.0
'
96.0
123.0
,'' , ' ,
108.0
127.0
103.0
' ,
135.0
77.0
'
'
121.0
"
118.0
' ', '
130.0
123.0
117.0
121.0
132.0
' * *t f '
105.0
;';?"'**$r
Res. 2
136.0
V'- "f"'*^'^*
135.0
' ' ?*, ' /''
100.0
' ^ ' f '
102.0
98.0
,' ;
91.0
138.0
" ''/ "\ '"";'>'}
97.0
120.0
103.0
'... . -/ --/:...,
137.0
73.0
' ''>'', -,, 7^,
''','' ' ''
122.0
: ' :},
125.0
124.0
119.0
109.0
134.0
-,- ^'/;,-;<''1
104.0
* '> ' 'f J''/,* 's
BO f. . '"; .j V-, S'^^^
BF
RR
RS
RT
EtI
RV
RZ
S
sc
SD
SF
SG
a
0 s
107.0
'"7, '//''''/ '^'
103.0
111.0
132.0
122.0
131.0
126.0
102.0
,-' ' , ' *' '' "L "x
105.0
"'^";f/'/ r ' ,, "
104.0
'
108.0
134.0
124.0
130.0
123.0
104.0
Res. 3
133.0
'^y\^
139.0
' f$s Sf
93.0
J j f f f
96.0
99.0
* f' ,f '
85.0
131.0
$,* *
105.0
129.0
100.0
"' '','
137.0
75.0
f
/',
122.0
f f f "
112.0
/ f f f
122.0
123.0
115.0
109.0
134.0
'/,';/'<, '"' /
107.0
'Wฎft
'"'?''{/"''' ',
T '''-/''' '"
103.0
r*,'? ,
108.0
101.0
137.0
134.0
128.0
133.0
105.0
No data submitted
Insufficient
data
X S
Study: Performance Evaluation-B, 14-Apr-1992 6/44
Exper.
Sigma
1.53
-f/" '- - ""
2.65
' ", '--
4.04
' ;
3.79
3.21
',
5.51
7.51
,,,;
5.69
4.73
1.73
'
1.15
2.00
'
/
0.58
'
7.55
, ' . ,'
4.04
0.58
2.00
6.93
1.15
'
1.53
'U,fcsง ,
'
2.00
..
2.65
5.13
2.52
6.43
1.53
5.13
1.53
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.084
f S "ฃ -V *$ f
ff "! f f fa
0.141
' "'' 't ' '
0.197
* f ff
0.197
0.169
_,.
0.309
0.422
' "
0.309
0.253
0.084
' -
0.056
0.113
-,
0.028
0.422
0.225
0.028
0.113
0.338
0.056
,
0.084
fff f
0.113
0.141
0.281
0.141
0.338
0.084
0.281
0.084
134.33
'*'-*;'''%'?>"'&ฃ&
136.00
',';" -/'^ ~% ','
97.67
, ,, ,, ' ' s "' ,
100.33
96.67
' * ", '*' "
90.67
130.67
t ' >''/'
103.33
125.33
102.00
136.33
75.00
'
>'-' '"
121.67
: '
111.00
, '
125.67
123.33
117.00
113.00
133.33
's, , ' / '
105.33
t// '" * ' '*V t&t ' '} .'
'-'"<, '-- &$%',. '.;
,.,. ,. ^.. .^ ^., . r;ff ,.
105.00
105.00
106.67
134.33
126.67
129.67
127.33
103.67
TAG SYMBOLS
Determined
to be an
outlier
_1.34
';^YV-/:,.^
"l.48 '
-1.69
f s
-1.47
-1.77
ff f fJ
-2.26
1.04
ff * "
-1.22
0.60
-1.33
*
1.50
-3.56
^
0.29
-0.59
0.62
0.43
-0.09
-0.42
1.26
' ',' '
-1.05
<~&t$ I:,
x .
,'
-1.08
-1.08
-0.94
1.34
0.71
0.95
0.76
-1.19
It s Above
U = Below
-0.47
4 '%/* *'"
-0.33
'' j- ; f- ฃ
-3.49 II.
' *
-3.27 IF
-3.57 Ji
*
-4.07 "ฅ"
-0.77
V *
-3.02 "ฅ"
-1.21
-3.13 11
ป
-0.30
-5.36 J-
*
-1.51
* -';
-2.39
-1.18
-1.37
-1.90
-2.23
-0.55
*
-2.86
~1&M - , 'X
'' *
ป
-2.89
-2.89
-2.75
*
-0.47
-1.10
-0.85
-1.04
-3.00
control limit
control limit
-------
7/44
EMSL-LV Intel-comparison Study: Performance Evaluation-B,
14-Apr-1992
Gross Beta
Lab
SI
SL
SN
SO
8R
ss
ST
SW
sx
SY
SZ
T
TA
1C,
TJS
*ฅ&
TH
TI
IK
U
W
X
55
Res. 1
142.0
107.0
91.0
121.0
116.0
112.0
165.0
105.0
138.0
116.0
133.0
80.0
107.0
'
124.0
82.0
114.0
,- '
Res. 2
137.0
110.0
102.0
121.0
121.0
115.0
176.0
106.0
153.0
118.0
138.0
'-
87.0
104.0
-
120.0
81.0
116.0
Exper.
Res. 3 Sigma
141.0
109.0
102.0
123.0
,,
121.0
114.0
170.0
102.0
144.0
115.0
132.0
',
- "''
''
95.0
100.0
* f
127.0
77.0
111.0
'
2.65
1.53
6.35
1.15
2.89
1.53
5.51
2.08
7.55
1.53
3.21
'
^
,
7.51
3.51
3.51
2.65
2.52
Rnganal
(R + SR)
0.141
0.084
0.309
0.056
0.141
0.084
0.309
0.113
0.422
0.084
0.169
v
f
"
S
.. ' .
0.422
0.197
0.197
0.141
0.141
Normalized deviation
Average (grand-avg) (known)
140.00
108.67
98.33
121.67
'
119.33
113.67
170.33
104.33
145.00
116.33
134.33
-
'
'
87.33
103.67
'
123.67
80.00
113.67
'
1.81
f * * ff f
-0.78
-1.63
0.29
0.10
-0.37
4.31
-1.14
2.22
-0.15
1.34
'
'
-2.54
-1.19
0.46
-3.14
-0.37
0.00
V "
-2.58
-3.44
-1.51
-1.70
-2.17
2.50
-2.94
0.41
-1.95
-0.47
..
!;
-4.34
-3.00
-1.35
-4.95
-2.17
Tag
-V
II
ซ
* I
, ป
ซ
t^
r
ป
ii
*
Data sorted by Laboratory Average
Average
11.67
75.00
79.33
80.00
81.00
84.00
85.33
87.33
88^00
90.67
91.00
93.00
96.67
97!33
97.33
97.67
98.00
98.33
Tag
X
II
II
II
II
II
||
U
II
II
11
II
II
II
II
II
II
II
= No data submitted
0 = Insufficient data
Lab
RN
QT
BG
W
FZ
K
BW
TH
NO
PV
MS
FU
PR
ID
CO
PM
CJ
SN
Average
100.00
100.00
100.33
100.33
100.67
102.00
102.00
102.00
103.33
103.67
103.67
104.00
104.33
104.33
105.00
105.00
105.33
106.33
Tag
II
II
II
II
II
II
II
II
II
Lab
NI
KZ
PQ
AE
EV
QK
NG
KE
Q
TI
SG
EK
SX
ME
RT
RR
RM
FL
Average
106.67
107.00
107.67
108.33
108.67
109.33
109.67
110.67
110.67
111.00
111.33
112.00
112.33
113.00
113.00
113.33
113.67
113.67
TAG SYMBOLS
x s Determined to be an outlier
Tag
It s Above
II s Below
control
control
Lab
RV
N
AW
BN
SL
OY
BH
GE
DL
QZ
EO
GQ
MA
RG
CA
DE
X
ST
limit
limit
-------
EM8L-LV Intercomparison Study:
Gross Beta
Performance Evaluation-B, 14- Apr- 1992 8
744
Data sorted by Laboratory Average
Average Tag
113.67
113.67
114.00
114.67
114.67
115.33
116.00
116.00
116.33
116.33
116.67
116.67
116.67
116.67
116.67
117.00
117.67
118.00
118.33
118.33
118.67
118.67
118.67
119.33
120.00
120.00
120.67
121.00
121.67
121.67
121.67
122.00
% Frequency
ฐ -6 T 5
= No data submitted
0 s Insufficient data
Lab
NK
LE
FF
LT
DB
DM
AO
A
SZ
AJ
LF
I
HP
FE
AK
RF
CS
FN
NH
JE
MQ
EB
BK
SS
DS
AJ
E
AF
SO
QX
OF
O
Average
122.00
122.33
122.33
122.67
123.33
123.33
123.33
123.67
123.67
123.67
124.33
125.00
125.00
125.00
125.33
125.33
125.33
125.67
125.67
126.00
126.33
126.67
127.00
127.33
127.33
128.00
128.33
129.00
129.67
129.67
129.67
130.00
130.00
Tag Lab
AR
J
BA
NT
RE
HH
EH
U
JG
C
JN
P
NA
LG
QC
LR
L
RD
KX
1C
AZ
SC
BM
SF
AL
HL
MV
GT
SD
BS
BC
OE
BO
Average Tag
130.67
130.67
130.67
131.67
132.00
132.33
132.33
133.33
133.33
133.33
134.33
134.33
134.33
134.33
134.67
136.00
136.33
137.33
138.67
139.00
140.00
140.00
145.00
148.33
150.00
162.00
167.67
170.33
175.33
202.00 x
208.00 x
235.00 x
1664.67 x
Lab
PW
D
CQ
CK
BT
CG
AU
RJ
HY
HK
T
S
PB
JS
M
PG
QQ
JE
DD
DZ
SI
CE
SY
GZ
JH
OS
FJ
SW
NJ
JY
MY
AP
HI
distribution of responding labs(expected prec. vs known value)
..III!
illlllllll
ฅ i i
exp. prec. -*
TAG
ii-V """--":; : :
knoW ' +2 e*P-Prec- +4
value
SYMBOLS ft s Above control
x s Determined to be an outlier Jl s Below control
ftฅ.
+6
limit
limit
-------
9/44 EM8L-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992
Gross Beta
% Frequency distribution of responding labs(std. dev. vs mean value)
10
* -4 std. dev. -2 0 +2 std. dev.
mean
value
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 10/44
Strontium-89 Statistical Summary 204 Participants
The known value of this nuclide is 15.0 pCi/I with an expected precision of 5.0; the control limits
are 6.3 to 23.7; the warning regions are 6.3 to 9.2 and 20.8 to 23.7
125(61.3 %) Failed to respond.
4(2.O %) Outliers
1 (O.5 %) Out of control -
but not an outlier
Statistic
. 69(33.8 %) Within all limits
Respondents
* 5(2.5 %) 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
16.37
4.96
24.60
30.30
9.11
0.28
15.67
4.44
0.13
Grand Avg 15.52
3.25
10.55
20.93
3.44
0.16
15.67
4.44
0.21
5(6.3 %) More than 3 norm. S.D. ซ
5(6.3 %) Between 2 and 3 norm. S.D
;47(59.5 %) Within 1 norm. S.D.
of known value
22(27.8 %) Between 1 and 2 norm. S.D.
-------
1 1 / 44 EMSL-LV Intel-comparison
Study: Performance Evaluation-B, 14-Apr-1992
Strontium-89
Lab
A
AB
AE
AF
Al
AJ
AK
AL
AO
AP
AE
AU
AW
AZ
BA
BC
BO
BH
BK
BL
BM
BN
BO
B9
BW
C
CA
CIS
f
17.0
-
15.0
Res. 2
14.0
20.0
11.0
20.0
11.0
14.0
17.0
,
f
f
16.0
14.0
18.0
10.0
18.0
' ..
23.0
"-
10.0
17.0
-
15.0
, , '
' -
. 17.0
10.0
f
f f
16.0
17.0
26.0
16.0
17.0
12.0
18.0
10.0
20.0
"
15.0
Res. 3
14.0
23.0
11.0
15.0
12.0
13.0
18.0
,,
'
-,
17.0
13.0
14.0
13.0
15.0
'
21.0
, 'r
14.0
17.0
'
14.0
' - -,,.
f -,
16.0
13.0
' ''
',* s 'f
f f f * t ^
17.0
18.0 .
'* '',''* ''' '" '"
20.0
17.0
17.0
14.0
14.0
10.0
20.0
f
14.0
= No data submitted
0 s
Insufficient
data
x =
Exper.
Sigma
0.58
1.73
0.58
2.65
0.58
1.00
1.00
'
'-
-,,'- '
1.00
1.53
3.06
3.00
1.73
.
1.15
2.65
0.00
0.58
'
0.58
2.08
- '
'
1.00
1.00
^ '-:
5.03
0.58
0.58
1.15
3.51
0.00
1.73
0.58
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
0.354
0.118
0.591
0.118
0.236
0.236
0.236
0.354
0.709
0.709
0.354
0.236
0.591
0.000
f
0.118
0.118
0.473
f
0.236
0.236
' '
1.345
0.118
0.118
0.236
0.827
0.000
0.354
0.118
14.33
21.00
10.67
18.00
11.67
13.00
17.00
'
*
17.00
14.33
17.33
13.00
16.00
'
21.67
-
11.00
17.00
14.33
16.33
12.33
% ' '
16.00
17.00
-
20.67
16.33
16.67
12.67
14.33
10.00
19.00
,
14.67
TAG SYMBOLS
Determined
to be an
outlier
-0.41
' *
1.90
-1.68
0.86
-1.33
-0.87
0.51
-
0.51
-0.41
0.63
-0.87
0.17
'
2.13
'
-1.56
0.51
-0.41
0.28
-1.10
'
0.17
0.51
' ,
1.78
0.28
0.40
-0.99
-0.41
-1.91
1.21
-0.29
fl Above
-0.23
2.08
-1.50
1.04
-1.15
-0.69
0.69
ป ;
#
*
0.69
-0.23
0.81
-0.69
0.35
ป i
2.31
* i
-1.39
0.69
*
-0.23
*
* i
0.46
-0.92
V \
* '
0.35
0.69
#
1.96
0.46
0.58
-0.81
ซ .
-0.23
-1.73
* -
ซ :
1.39
ป :
-0.12
control limit
li = Below control limit
-------
EMSL-LV Inter-comparison
Strontium-89
Lab Res. 1
DZ
E
EB
EH
EK
EL
EO
: JEV'
FE
F^
FL
FU
'FZ
GE
GV
GZ
ffl
HK
HP
BY
I
JA '
1C
m
m
itr
j
JE
JG
JH
JN
JQ
JS
=
0 s
25.0
20.0
13.0
19.0
10.0
15.0
17.0
mo
,- X
15.0
Res. 2
25.0
16.0
13.0
17.0
13.0
ff /ffff f Jf
17.0
' * X fr ^
17.0
,/ ^ '
-' ^f Qf^l/ **
S f fJf
' }, ; ^
15.0
9.0 9.0
8.0 12.0
' ' '^&-''^ '" "' s ",
14.0 16.0
f f
14.0
18.0
16.0
15.0
22.0
17.0
No data submitted
Insufficient data
Res. 3
24.0
15.0
12.0
21.0
11.0
*, *'** * '
ft "" f
15.0
19.0
15.0
'/"'''I'''' '
9.0
',4.'"".'"- /
j, ;*,,,*
16.0
17.0
14.0
25.0
23.0
x =
Study: Performance
Exper.
Sigma
0.58
2.65
0.58
2.00
1.53
1.15
1.15
X
0.00
-
0.00
4.00
1.53
0.58
3.51
3.79
Rng anal
(R + SR)
0.118
0.591
0.118
0.473
0.354
0.236
/
0.236
Evaluation-B, 14-Apr-1992 12/44
Average
24.67
17.00
12.67
19.00
11.33
15.67
17.67
jf
0.000 15.00
"' ' ;,' '',
0.000 9.00
0.945 12.00
0.354 15.67
0.118 14.33
0.827 21.67
0.827 18.67
TAG SYMBOLS
Determined to be an outlier
Normalized deviation
(grand-avg) (known) Tag
3.17
0.51
-0.99
1.21
-1.45
0.05
0.75
-0.18
-2.26
-1.22
0.05
-0.41
2.13
1.09
ft = Above
IL = Below
3.35 ft
0.69
-0.81
1.39
,'' ' * '
-1.27
f f
*
9
0.23
*
, *
0.92
* '
0
49 JQ& w
"v>??%? ^^
*
*
*
*
0.00
f
ป
-2.08
'' / ' -V ,
*
-1.04
0.23
*
-0.23
2.31
*
*
1.27
control limit
control limit
-------
13/44 EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992
Strontium-89
Lab Res. 1
Exper. Rng anal Normalized deviation
Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
K
KC
HE
KF
KM
HT
KX
KZ
L
LE
LM
LR
i/r
M
MA
ME
MO
MP
MQ
MS
MV
MY
N
NG
NH
NI
Ntf
NK
HO
NT
o
OE
OF
OL
OM
OS
OX
oir
F
18.0
16.0
17.0
19.0
18.0
14.0
16.0
19.0
13.0
14.0
18.0
15.0
18.0
20.0
13.0
17.0
15.0
16.0
16.0
14.0
20.0
16.0
17.0
20.0
13.0
12.0
18.0
14.0
13.0
1.15
2.52
1.53
0.945
0.236
0.58 0.118
0.58 0.118
0.58 0.118
2.89 0.591
0.591
0.354
17.0 1.53 0.354
>', ,'V,' ' ' /'''' '
1.53 0.354
0.58 0.118
18.67
15.67
17.33
19.67
14.67
14.33
16.33
17.33
14.33
13.67
1.09
0.05
0.63
1.44
-0.29
-0.41
0.28
0.63
-0.41
-0.64
1.27
0.23
0.81
1.62
-0.12
-0.23
0.46
0.81
-0.23
-0.46
*
*
*
*
V
*
*
*
#
X
+
s No data submitted
0 = Insufficient data
TAG SYMBOLS
x = Determined to be an outlier
tt s Above control limit
II s= Below control limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-
Strontium-89
Lab
PB
f f
ฃ0'
PC3.
'-PI/
PM
PP
P*
PI?
PV
*****
PW
PY
.- if*. >ฃ
Q
QC
QK
OS
QT
QU
QW
QX
<$Y
QZ
RC
RE
RF
JUS
WMP^W
RK
RM
HNT,
RO
BP
RR
US
ET
RV
RZ
S
sc
SD
SF
SG
=
0
Res. 1
15.0
> ff " ff ffffffff ff
<, //'
' f' ' ' ''' '
'
14.0
' -" - ' '-'
', ' ',
19.0
f f f-
12.0
' '
13.0
' /,
- ' ;
10.0
8.0
ฃ7,0,-,
'
16.0
'' ',
- ;J
19.0
r ; " ,"/
'/^'
16.0
' ' ' 2, ;'
V */'" "^-E
- ;',V'''j'5l
16.0
'_ '_ - ; '/'*^
'
16.0
14.0
19.0
12.0
; -
Res. 2
15.0
jfffff fyfff ffff fff
' '" ,' ' <* f
f 'f f f
f ff f f/
17.0
'' ,/, ''' " ''
'
13.0
' '/ '" ,
14.0
' ' '',
14.0
* f ff
f f ff f
10.0
8.0
- 2&0 s
'!' ,s '>' ',
19.0
- -' '/-' 'i
;-'- ,<''Lf
19.0
t /?,,;',
-,' ',5,;"*
18.0
.4X - IF'-,
^,V->' i-|/
''?"'''///"'' '""'
13.0
^z/y*/"
- /
17.0
16.0
18.0
26.0
' ' ^ '/ '
Res. 3
15.0
f ff f" ff
''V X ,'''
* *f ff'fff
'' ''','>''-''',
16.0
Si%, '/
,''"''' ' '' '' "
" , ' "'
13.0
*' ''''',
12^0
', * t '
13.0
' f ' 'v *
//^ * f *
10.0
11.0
/ '' aolo
/:' '' <!"'
18.0
'/ซ //''''-
,^v ', /
19.0
^ l/^'"'
'""-':/''*"
20.0
; |^Cj,v ;
^^Hv'T
!>>r/"i->
17.0
*
-
_,
18.0
16.0
18.0
19.0
No data submitted
Insufficient
data
X
Exper.
Sigma
0.00
fff f f f f
^'
Af % ^ *"
' '"' *
1.53
fff f
ff
f f f
3.46
f f
1.15
0.58
,,<
0.00
1.73
- , "" ^,02
? ' ' '
1.53
f
_, %
0.00
f f ff ^ f
f f f
2.00
/ ,'
" ^ ^
;' , '
2.08
,
1.00
1.15
0.58
7.00
B, 14-Apr-1992 14/44
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known)
0.000
f ff -ff
, r /
, " ' '
, " /-
0.354
* ff
, ' ,
- ',>>, r,<
0.709
j> ff
0.236
'/ -
0.118
,
0.000
0.354
' fff
"f *6 f *ff*
/ f Sf '
15.67
f f f ' f
'*: , -/I-" -
fff f
15.00
12.67
^
13.33
;
' , '' '
10.00
9.00
4*tl*f A%.jBL
f f jS-fปiKJ
' ' ' ''
17.67
* ' '
' / ' , ''
19.00
' f f f f f f f
' f r,.
18.00
i ' '" '
/ ' '"""' "
' > ' , '
15.33
f
17.00
15.33
18.33
19.00
TAG SYMBOLS
= Determined
to be an
outlier
-0.18
f ffff ff'fff fff ff ff
' , './''">/';,'
''''";, ''
";''"'* "s, ',""', -
0.05
^ ' -
/ ' < j
-0.18
-
f S f
-0.99
'/ ,'
-0.76
;
f f f f
-1.91
-2.26
400
,
0.75
f
' ' f < *
1.21
*
,V '" ' ซ
0.86
"'/" ' ' f
f , ffff ,:.:. .
f f '
-0.06
0.51
-0.06
0.98
1.21
f
It & Above
11 s Below
0.00
/// $
- r
-
0.23
/
-,'' -
, ,
0.00
-0.81
f
-0.58
*
-1.73
-2.08
4J7
0.92
-
1.39
f * ,
f
1.04
,
-
0.12
0.69
0.12
1.15
1.39
control
control
Tag
f J "
*
' ป
, *
0
*
*
4
*
* -
*
X "
*'-',
ป
. ^,
w
*
*
^
V
*
*
*
limit
limit
-------
15/44 EMSL-LV Intel-comparison Study: Performance
Strontium-89
Lab Res. 1 Res. 2
SI 10.0 10.0
so
JSE
SS 15.0 17.0
ST
SW 16.0 14.0
SX
SY 18.0 22.0
sz
T 17.0 15.0
1*A " ,x-^-"'^-"
*&& - " -
TB -
TH
TI 20.0 17.0
TK
V 17.0 15.0
W 10.0 10.0
a '
Exper. Rng anal
Res. 3 Sigma (R + SR)
8.0 1.15 0.236
''^<-Y;'"'*' vS " <- > ' \ ', ';'
'
12.0 2.52 0.591
5.0 5.86 1.570
f
22.0 2.31 0.473
-'
15.0 1.15 0.236
" j
* j ....
f
16.0 2.08 0.473
11.0 3.06 0.709
9.0 0.58 0.118
-
Evaluation-B, 14-Apr-1992
Normalized deviation
Average (grand-avg) (known) Tag
9.33 -2.14 ^-1-W,
' ' ' , *
*
14.67 -0.29 -0.12
*
11.67 -1.33 -1.15
ป
20.67 1.78 1.96
* ;
15.67 0.05 0.23
*
ป
...... , ซ |
*
17.67 0.75 0.92
, ' ป
14.33 -0.41 -0.23
9.67 -2.03 -1.85
ป
Data sorted by Laboratory Average
Average Tag
9.00
9.00
9.33
9.67
10.00
10.00
10.67
11.00
11.33
11.67
11.67
12.00
12.33
12.67
12.67
12.67
13.00
13.00
s No data submitted
0 = Insufficient data
Lab Average Tag
QW 13.33
HP 13.67
SI 14.33
W 14.33
QU 14.33 '
DE 14.33
AF 14.33
BL 14.33
EL 14.33
SW 14.33
AJ 14.67
I 14.67
CA 14.67
Q 15.00
EB 15.00
D 15.00
BA 15.33
AK 15.33
TAG SYMBOLS
Lab Average Tag Lab
QK 15.67 T
NT 15.67 PM
U 15.67 KX
NI 15.67 1C
MQ 15.67 FE
J 16.00 CJ
DD 16.00 BC
BO 16.33 MS
AW 16.33 CQ
A 16.33 C
SS 16.67 CS
ME 17.00 S
DT 17.00 E
PV 17.00 CK
PB 17.00 BM
HK 17.00 AU
SC 17.00 AL
RR 17.33 N
IT s Above control limit
x = Determined to be an outlier Ji s Below control limit
-------
EM8L-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 16/44
8trontium-89
Average Tag
Data sorted by Laboratory Average
Lab | Average Tag Lab | Average
Tag
Lab
17.33
17.33
17.67
17.67
17.67
18.00
18.00
18.33
L
AZ
TI
QZ
FU
RM
AI
SD
18.67
18.67
19.00
19.00
19.00
19.00
19.67
20.67
K
JS
SF
RF
EH
DO
M
SY
20.67
21.00
21.67
21.67
24.67
27.33
29.67
35.00
37.33
tr
X
X
X
X
CO
AE
JE
BH
DZ
QX
NJ
GQ
JY
Frequency distribution of responding labs(expected prec. vs known value)
10-
O-1p-
-6
~4 exp. prec.
known
value
exp. prec.
Frequency distribution of responding labs(std. dev. vs mean value)
-6
std. dev.
mean
value
+2 gtd. dev.
s No data submitted
0 s Insufficient data
TAG SYMBOLS
Determined to be an outlier
It s Above control limit
Ji s Below control limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 17/44
Strontium-90 Statistical Summary 204 Participants
The known value of this nuclide is 17.0 pCi/1 with an expected precision of 5.0; the control limits
are 8.3 to 25.7; the warning regions are 8.3 to 11.2 and 22.8 to 25.7
121(59.3 %) Failed to respond.
7(3.4%) Outliers
Statistic
. 72(35.3 %) Within all limits
Respondents
* 4(2.0 %) 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
16.57
5.90
34.76
35.58
-2.53
-0.07
16.00
-5.88
-0.17
Grand Avg 15.85
2.37
5.61
14.95
-6.79
-0.49
16.00
-5.88
-0.42
8(9.6 %) More than 3 norm. S.D.
3(3.6 %) Between 2 and 3 norm. S.D.
. 62(74.7 %) Within 1 norm. S.D.
of known value
ป 10(12.0 %) Between 1 and 2 norm. S.D.
-------
18/
44 EM8L-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992
Strontium-90
Lab
A
AB
AE
AF
AI
AJ
AK
AL
AO
AE
AU
AW
AZ
BA
BC
BO
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
-
,
16.0
16.0
17.0
f
13.0
15.0
-
10.0
14.0
13.0
16.0
15.0
15.0
16.0
,,
16.0
Res. 3
16.0
,
16.0
17.0
16.0
15.0
17.0
16.0
'
-
18.0
3T*$
14.0
16.0
12.0
17.0
15.0
17.0
-
16.0
17.0
14.0
16.0
e '
15.0
16.0
. '
12.0
12.0
13.0
17.0
15.0
15.0
15.0
'
14.0
s No data submitted
0 =
Insufficient
data
X S
Exper.
Sigma
0.00
'
1.53
0.00
1.53
0.58
1.53
0.00
'
'
0.58
2.08
0.58
1.15
1.53
f
0.58
2.52
0.00
f
0.58
-
1.00
1.00
0.58
' f
1.16
0.58
\ '{ ,
1.15
1.15
0.00
0.58
1.15
0.58
1.53
1.00
Rnganal
(R + SR)
0.000
,, f
0.354
0.000
0.354
0.118
0.354
0.000
0.118
0.47a
0.118
0.236
0.354
0.118
0.591
0.000
0.118
0.236
0.236
0.118
0.236
0.118
0.236
0.236
0.000
0.118
0.236
0.118
0.354
0.236
Normalized deviation
Average
16.00
17.67
17.00
14.67
14.67
16.67
16.00
-
17.67
39.33
14.33
15.33
13.67
16.33
17.67
17.00
15.67
..
16.00
15.00
16.33
14.33
15.33
11.33
13.33
13.00
16.33
15.67
14.67
16.33
15.00
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
0.05
-" ' \
0.63
0.40
-0.41
-0.41
0.28
0.05
0.63
&**
-0.52
-0.18
-0.76
., "
0.17
'
0.63
0.40
-0.06
0.05
-0.29
0.17
-0.52
-0.18
-
-1.56
-0.87
-0.99
0.17
-0.06
-0.41
0.17
-0.29
ft s Above
ti s Below
-0.35
*-
0.23
0.00
-0.81
-0.81
-0.12
-0.35
* *
ซ
0.23
f.74 x
-0.92
-0.58
-1.15
ป
-0.23
* :
0.23
0.00
.. >
-0.46
ซ :
*,
-0.35
-0.69
-0.23
*
-0.92
-0.58
*
-1.96
-1.27
-1.39
-0.23
ซ
-0.46
-0.81
ซ
ป
ซ
-0.23
ป
-0.69
control limit
control limit
-------
EMSL-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992 19/44
Strontium-90
Lab
DZ
E
EB
EH
EK
EL
EO
131t
JEV
EX
FE
WK
l^T"
"ซ*
JpJb
- F^N*'
FU
JPW
1*32"
GE
GQ
- O*E
GV
BH
HI
HK
m
HN
HP
iHl'
.-BY
I
'tji.'**
W^w
1C
ti%''
itป
11
m
j
JE
JG
JH
^JN
JQ
JS
Res. 1
15.0
17.0
15.0
16.0
' ^
15.0
'* '
f fj
I ,
17.0
- ',?,," -/
''", ',-,'; ', f '
/,;/-"' ;y)i
"
15.0
_, f v
' x
#'
^ * ' #
14.0
f f f
*" '!'''
'"- ' "
'
15.0
,,,, ^ ,, ,, ,
' , - '^ , ,
16.0
^ // ',
":,| /'//ฃ/*
22.0
' '* 4 '/V
/ ' f ' f **
18.0
' ", '' '*{', ">
' ' '" '''''fr,''
*
*
16.0
14.0
'
16.0
Res. 2
16.0
17.0
15.0
16.0
* ' ,','
15.0
,-, -
' /,
-,
,
16.0
f f
"',','*. ' ' ',
, ,
16.0
/ ',
*
_, _, * f
14.0
"
*- *--'/-
f
15.0
, ,
' ' t'''!,' ,
16.0
' '
!','/>'*/;'
20.0
fฅfff4f f"s ff
j. fft r/t
16.0
ff SfJJff f f ffJ f
' "/ ff *
16.0
11.0
-
f
17.0
Res. 3
15.0
18.0
16.0
15.0
', ''*
16.0
/'";,, '" ,;; * '-
'"',>"'/',
, ' *,
',>'',''
17.0
X- ' ^
f f ff f f
?ฃ' s/fyL :-
- ''-"'/' '
17.0
," '"';' "s , '"
" ' ' - * ,,'
14.0
, * ^ '
''/'',
,,.,, ' * -'-;/-
' , ",
15.0
f f ff ff f f
'**'<,, ?!^;'f. /^/i
16.6
-, /^,/^ '***'* 'i:'''
20.0
'' IT ^ '-, '' 7' ', x
; * * X' ' ' ' '
16.0
- ^^ /''/'' ""
' ' ' s , .-..''
'
16.0
14.0
...
14.0
3 No data submitted
0
Insufficient
data
Exper.
Sigma
0.58
0.58
0.58
0.58
, '
0.58
' ,
,
f
0.58
'- ;-' '-'
, '" '
1.00
''
_, f f
< "'
0.00
'
''
'
0.00
' ,
0.00
/' ''
'-,
1.15
1.15
f ff *
'
0.00
1.73
1.53
Rng anal
(R + SR)
0.118
0.118
0.118
0.118
f ' f 'ff
0.118
- , ,-A
' ' '',,
" * , '
ป''', '
f f
0.118
' / ' ' ,' '
, '*,'' ' '
'''' $ v "'/
' , >
0.236
"" / ''/ *
J
/ / *
0.000
'
' /
0.000
' ', "' "'- '^ '
'' ' , , ,,, " '
0.236
' '" ' ' -V ""
*"
0.236
-
0.000
0.354
0.354
Average
15.33
17.33
15.33
15.67
' '''
15.33
" '','; '
'' ' "'-
': '"' -" T
"ff
16.67
"
'/ ' ' ''''
S" , ' / ",
16.00
,. f ff
, f ,
'.'.'/ , *' ,
14.00
' , ,
( ''/'-} ''-
p
15.00
"',
:'; '" '
16.00
':*- - - \
;.; ^ '-I-
20.67
* * ' ' ^
f
16.67
'
'
16.00
13.00
15.67
TAG SYMBOLS
x. = Determined
to be an outlier
Normalized
(grand-avg)
-0.18
0.52
-0.18
-0.06
,,-lT/^: -,-'
-0.18
';-; 'fl'/, -',;
,,' '/f ' '^ ,
*;-," *'- '
-
0.28
/' ""'' ;
' , ' '
:'}J':*.' y"'
' , ' i
0.05
""'' f f f >''
'f " **
f '/ f v
-0.64
S-" '
' ,
, ..,
-0.12
' *
f
ff
*
-0.35
p ',
,
-1.04
s
-
'
-0.69
'
-0.35
''' " ' '
f ' '
1.27
f
-0.12
-0.35
-1.39
-0.46
ft s Above control
11 s Below control
Tag
' *'-'
<
'' *,
" *
*
*
'-ป
*
* "
*
"ป ;
*
* -'
v.
*,
*
*
, '*" "
*
*
ป
*
*
limit
limit
-------
20/44 EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Aprป1992
Strontium-90
Lab Res. 1
Exper. Rng anal Normalized deviation
Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
JY 42,0
K 12.0
KC
KF
KM
in*
KX
KZ
L
IM
LO
LM
LR
i/r
M
MA
ME
MIST
MO
MP
MQ
MS
MV
MIT
N
NA
Wi
NI
m
NK
HO
NT
OB
OF
OL
OM
OS
OK
OT
P
16.0
19.0
15.0
17.0
18.0
17.0
16.0
15.0
16.0
9.0
17.0
19.0
16.0
18.0
18.0
18.0
17.0
15.0
16.0
11.0
16.0
19.0
16.0
19.0
19.0
17.0
16.0
14.0
16.0
1.53
0.58
0.58
1.00
0.58
0.58
0.58
0.58
0.00
0.354
0.118
0.00 0.000
0.118
0.236
0.118
0.118
0.118
0.118
0.000
10.67
16.33
19.00
18.00
18.33
17.33
16.33
14.67
4438 '
16.00
-1.79
0.17
1.09
15.67 -0.06
0.75
0.86
0.52
0.17
-0.41
0.05
-2.19
-0.23
0.69
-0.46
0.35
0.46
0.12
-0.23
-0.81
-0.35
ซ
*
ป
ซ
ซ
*,
'*
a No data submitted
0 = Insufficient data
TAG SYMBOLS
x = Determined to be an outlier
ft s Above control limit
II a Below control limit
-------
EM8L-LV Intercomparison Study: Performance Evaluation-B,
Strontium-90
Lab
PB
JPO
JPl,
PM
PP
*ป<*
Fit
P#
PV
FW7
FT
Q
QC
QK
OP
/ ^^
QT
"W
QW
QX
^1f
QZ
HO-
RD
RE
RF
JOG
wHmM
RK
RM
RN
JK>
BP
RR
RS
HI?
RU
BV
RZ
S
sc
SD
SF
SG"
Res. 1
15.0
f J ' ff
f
13.0
15.0
*
16.0
f
f .. '
17.0
-
15.0
'
>' <
' ' -8*0 '
6,0
,5,0
f
15.0
*
,, ^
,
16.0
* *
':, % -''ff
f X
13.0
' ' ' / ,
.... '.. ^ , ,,. /
, '' *'
16.0
""**" "*
'
16.0
16.0
21.0
10.0
f
Res. 2 Res. 3
15.0
' "f
* > ^ '
"* fffff
13^0
15.0
,
;
'' ''
18.0
f f t J s '
* f '
18.0
-
15.0
''-;:il
' "' 7-0 '
'' , ซ-ซ6'' i
t 7,0 '-
^
14.0
- '
. ^ , .- f
' ' '" '
17.0
, ' ' '''',>'
f f f
f f * < '" f *
13.0
f^-y'*''"'/^
'v^'-:^
17.0
"''-'/, h ' ' ', '
s f f f f
'
15.0
15.0
24.0
7.0
-1
15.0
"
f '
, ' ';
13.0
17.0
x '
f f ' ' '
' ^/"'
20.0
'
'
18.0
'/
16.0
' s.;'.
v -^
*5*v
7,0'
^0
'
15.0
*
* " ',".
*<
17.0
/ '
'''''*' '''/',,
'' "v,:-'
13.0
ป^','-
^ ""
" '^
16.9
__ "' '
16.0
16.0
27.0
8.0
'
^ No data submitted
0 a
Insufficient
data
x =
Exper.
14-Apr-1992 21/44
Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
0.00
'
,
0.00
1.15
''t
' ' ' '' ^
2.00
'' , '
'
0.58
0.58
,
IvOQ
0,S6
' , ฃ&&
'
0.58
";
*
0.58
% '
"^
0.00
0.58
0.58
0.58
3.00
1.53
0.000 15.00
' / ' ' ' ' '
'' ', ' "'''''',
' - ' ;
0.000 13.00
0.236 15.67
, _.
' , ' ' " '"* "
/
0.473 18.00
- ' > "i
,*>' '
0.118 17.67
0.118 15.33
, -
; ' '';',
6.236 ' - ?.00 ',
0418 $M
gmt 467,
'
0.118 14.67
/
, f , ,,
' -
0.118 16.67
'
' ', " *
' < ; ' ', , < ',
0.000 13.00
' ' ' , ' ,''"'
f f f Sf f
0.118 16.33
0.118 15.67
0.118 15.67
0.709 24.00
0.354 8.33
TAG SYMBOLS
Determined
to be an outlier
-0.29
* < " fff *
, /' t
, \
-0.99
-0.06
f s
f J
s '
0.75
'/ ^ ,' ',
f j
0.63
f
-0.18
;
'
-3,06
ซ3ซ30
-3.S7
-0.41
'
. .
- ,
0.28
f * f
-0.99
' '
, ' ' '"'
,
0.17
-0.06
-0.06
2.82
-2.60
IT s Above
Ji = Below
-0.69
> ' ' *
'' ' ;ซ
'/ - ซ
-1.39
-0.46
>,
' , , *
4 "
0.35
ป
*'
0.23
- - *
-0.58
, *
ซ
4.46 x
-3,70 x
-427 x
* ,
-0.81
'
*
*
-0.12
^
', m
*
-1.39
*
ซ
' *
-0.23
'
ป
*
*
*
-0.46
-0.46
2.42
-3.00
*
control limit
control limit
-------
22/44 EMSL-LV Intercomparison Study: Performance
Strontium-90
Lab Res. 1 Res. 2
SI 20.0 18.0
HE, , .......... .. .. ../;^
so
SB
SS 17.0 16.0
ST
SW 15.0 18.0
SX- "
SY 23.0 22.0
8Z
T . 15.0 15.0
TA 16.0 17.0
*ro
TH
TI 6.0 10.0
U 16.0 18.0
W 15.0 19.0
& 30.0 26.0
Exper. Rng anal
Res. 3 Sigma (R + SR)
19.0 1.00 0.236
',--,.!'/"'
' "
' , '
18.0 1.00 0.236
21.0 3.00 0.709
> '
22.0 0.58 0.118
,
16.0 0.58 0.118
17.0 0.58 0.118
,-
*
10.0 2.31 0.473
18.0 1.16 0.236
17.0 2.00 0.473
QMS it tit ft^t ck A 'T "G
jiffv+\f J6v\f * Vv9t f O*
Evaluation-B, 14-Apr-1992
Normalized deviation
Average (grand-avg) (known)
19.00 1.09 0.69
- / < -'.;.* ':--' -
' \ ' ' '' '
'"> "
17.00 0.40 0.00
, ,, ^ ,, ,
18.00 0.75 0.35
.
22.33 2.25 1.85
15.33 -0.18 -0.58
16.67 0.28 -0.12
^
8.67 -2.49 -2.89
17.33 0.52 0.12
17.00 0.40 0.00
Vt'M > ,ftfe *M
Tag
*
*
ซ :
ป
* 11
# ;
*
# :
4 l
Data sorted by Laboratory Average
Average Tag
4.67 x
6.33 x
7.00 x
8.33
8.67
10.67
11.33
13.00
13.00
13.00
13.00
13.33
13.67
14.00
14.33
14.33
14.67
14.67
= No data submitted
0 s Insufficient data
Lab Average Tag
QX 14.67
QW 14.67
QU 14.67
SF 15.00
TI 15.00
K 15.00
CO 15.00
RM 15.33
PM 15.33
JE 15.33
CS 15.33
CQ 15.33
BC 15.33
GQ 15.33
CJ 15.67
AZ 15.67
QZ 15.67
NI 15.67
TAG SYMBOLS
Lab Average Tag
DE 15.67
AJ 15.67
AI 15.67
PB 15.67
HK 16.00
DT 16.00
CA 16.00
T 16.00
QK 16.00
EL 16.00
EB 16.00
DZ 16.33
CK 16.33
BA 16.33
SC 16.33
S 16.33
PP 16.33
M 16.33
tf s Above control
x = Determined to be an outlier $ s Below control
Lab
JS
EH
DD
BO
NT
J
HP
FU
C
AL
A
RR
N
KX
DO
D
CE
BH
limit
limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 23/44
Strontium-90
Average Tag
Data sorted by Laboratory Average
Lab Average Tag Lab Average
Tag
Lab
16.67
16.67
16.67
16.67
16.67
17.00
17.00
17.00
17.00
TA
RF
1C
FE
AK
W
SS
BM
AF
17.33
17.33
17.33
17.67
17.67
17.67
17.67
18.00
18.00
18.00
U
MS
E
Q
BL
AU
AE
SW
PV
ME
18.33
19.00
19.00
20.67
22.33
24.00
27.33
39.33
42.00
44.33
x
x
x
x
MQ
SI
L
I
SY
SD
X
AW
JY
NJ
% Frequency distribution of responding labs(expected prec. vs known value)
20-f
10-
'4 exp.prec. -2 known *2 exP-Prec- **
value
Frequency distribution of responding labs(std. dev. vs mean value)
-ซ
%
20H
-*
-4 std. dev.
-2
+2 std. dev.
+6
value
= No data submitted
0 = InsufiQcient data
TAG SYMBOLS
x s Determined to be an outlier
ft a Above control limit
11 = Below control limit
-------
EM8L-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 24/44
Cobalt-60 Statistical Summary 204 Participants
The known value of this nuclide is 56.0 pCi/1 with an expected precision of 5.0; the control limits
are 47.3 to 64.7; the warning regions are 47.3 to 50.2 and 61.8 to 64.7
84(41.2 %) Failed to respond .
15(7.4 %) Outliers -'
Statistic
; 99(48.5 %) Within all limits
Respondents
-- 6(2.9 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
57.38
13.42
180.07
23.39
2.46
0.10
56.33
0.60
0.02
Grand Avg 56.44
2.97
8.83
5.26
0.79
0.15
56.33
0.60
0.11
15(12.5 %) More than 3 norm. S.D.
6(5.0 %) Between 2 and 3 norm. S.D
72(6O.O %) Within 1 norm. S.D.
of known value
27(22.5 %) Between 1 and 2 norm. S.D.
-------
257
44 EMSL-LV Intercompariaon
Study: Performance Evaluation-B, 14-Apr-1992
Cobalt-60
Lab
A
AB
AE
AF
AI
AJ
AK
AL
AO
AF
AE
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
0
CJ
CK
CM
CO
CQ
CS
D
DB
DD
DE
DJ
DL
DM
DO
D8
DT
Res. 1
51.0
61.0
63.0
55.0
60.0
53.0
53.0
10?.<1
59.0
59.0
416
59.0
59.0
89,0
56.0
57.0
56.0
57.0
59.0
57.0
59.0
54.0
63.0
56.0
'
53.0
61.0
53.0
56.0
58.0
WM
51.0
57.0
56.0
55.0
60.0
53.0
Res. 2
52.0
''
55.0
57.0
55.0
60.0
54.0
52.0
,
1110
61.0
60.0
42>ฎ
56.0
64.0
39#
58.0
57.0
54.0
55.0
60.0
54.0
43.0
55.0
61.0
55.0
',
56.0
58.0
, , -
59.0
56.0
59.0
1&&'': ''
, '
52.0
57.0
55.0
55.0
54.0
48.0
Res. 3
53.0
',--''
52.0
59.0
57.0
60.0
52.0
55.0
'
110.0
55.0
59.0
sid
57.0
59.0
44$ -
57.0
56.0
56.0
56.0
63.0
57.0
,'
71.0
54.0
59.0
53.0
/ *
56.0
57.0
" v , " K
64.0
54.0
57.0
If &
*
52.0
57.0
61.0
55.0
52.0
53.0
3 No data submitted
0 a
Insufficient
data
X 3
Exper.
Sigma
1.00
4.58
3.06
1.15
0.00
1.00
1.53
1
2.0&
3.06
0.58
; f 8J1
1.53
2.89
&B&'
1.00
0.58
1.15
1.00
2.08
1.73
f
14.05
0.58
2.00
1.53
1.73
2.08
5.51
1.15
1.00
0.5S
'
0.58
0.00
3.21
0.00
4.16
2.89
Rng anal
(R + SR)
0.236
1.120
0.709
0.236
0.000
0.236
0.354
' '
0.47&
-
0.709
0.118
134&
0.354
0.591
0491
0.236
0.118
0.236
0.236
0.473
0.354
5.396
0.118
0.473
0.354
0.354
0.473
' ;
1.570
0.236
0.236
0.118
0.118
0.000
0.709
0.000
0.945
0.591
Normalized deviation
Average
52.00
'
56.00
59.67
55.67
60.00
53.00
53.33
> '
109.33
,
58.33
59.33
'4467
57.33
60.67
40,67
57.00
56.67
55.33
56.00
60.67
56.00
57.67
54.33
61.00
54.67
55.00
58.67
58.67
55.33
58.00
!&&
51.67
57.00
57.33
55.00
55.33
51.33
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
-1.54
',
-0.15
1.12
-0.27
1.23
-1.19
-1.08
18.32
0.65
1.00
' <4ฃft
0.31
1.46
-M7
0.19
0.08
-0.38
-0.15
1.46
-0.15
' '
0.42
-0.73
1.58
-0.62
,- '' '
-0.50
0.77
0.77
-0.38
0.54
-1&S9
-1.66
0.19
0.31
-0.50
-0.38
-1.77
ft s Above
JJ. s Below
-1.39
*
0.00
1.27
-0.12
1.39
-1.04
-0.92
* :
1$48 ' x 1
+
0.81
1.15
-3.93 X
0.46
1.62
-&31 X !
0.35
0.23
-0.23
0.00
1.62
0.00
ซ
0.58
-0.58
1.73
-0.46
*
-0.35
0.92
*
0.92
-0.23
0.69
43.74 x
-1.50
0.35
*
0.46
-0.35
-0.23
ป
-1.62
control limit
control limit
-------
EMSL-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992 26/44
Cobalt-60
Lab Res. 1
DZ
E
EB
EH
EK
EL
EO
EV
EX
FE
' UF
FJ
FL
'M
FU
'FW
FZ
GE
GI
GQ
GT
0V
GZ
.'HM
HI
HK
HL
HP
I
tl&'
1C
' ID''-
JEU
J
JE
JH
,JN
JS
=
0 s
55.0
55.0
60.0
55.0
56.0
''t ',
f f
63.0
53.0
|02,0,
57.0
' , ' ' ' " ' " , ' '
56.0
' *
62.0
61.0
54.0
if'
' ' ^ * *,
''''''',
* ,
32.0
55.0
55.0
Res. 2
56.0
59.0
61.0
57.0
55.0
'-,
'
60.0
55.0
''
J20.0,
57.0
' "" * f s
57.0
' ' /
58.0
55.0
55.0
f j,
ff " ' # '
f fjff
57.0
55.0
53.0
56.0 56.0
', i, , $IM) ' v-$3*0'
','',', * r/ '"ซ, ''<ป? ' s
60.0
''s./l&Jb"*
ฃ9.0
"/ ' ; /;-/'-
55.0
57.0
,
55.0
55.0
I'Jf-'snuo,
59.0
/' ' Z* ฃ*
j
56.0
56.0
58.0
Res. 3
55.0
58.0
61.0
57.0
51.0
'& ;<>, , s
' '<,,''
62.0
55.0
f f *
102.0
56.0
'"/ ,
58.0
,,' " ' ''
58.0
56.0
55.0
.. '' '/
4 ' ' '
56.0
55.0
56.0
56.0
54.0
ฃ' T*'J9&&-
60.0
ff ff f *
55.0
56.0
'
57.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.58
2.08
0.58
1.15
2.65
' ' " '
1.53
1.15
1^39 /
0.58
f
1.00
'" -
2.31
3.21
0.58
*
-
,
14.15
0.00
1.53
0.00
' .. - 0*00
'/','?''
3.21
, 0*00
0.58
0.58
0.58
1.53
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
0.473
0.118
0.236
0.591
'?
0.354
0.236
f
^146
0.118
'
0.236
0.473
0.709
0.118
^ /
'-
, '
4.721
0.000
0.354
0.000
0.709
,<
'"' '',
61.67
54.33
'
' moo '
56.67
''' " " ' " ' '
57.00
, ' ,
59.33
57.33
54.67
,:
' , -*" - -r
' ,
48.33
55.00
54.67
56.00
->,.,&&},
56.33
- ' nM, '- -
59.33
55.33
56.33
56.67
TAG SYMBOLS
Determined
to be an
outlier
-0.38
0.31
1.46
-0.04
-0.85
,-^ "', /
'
1.81
-0.73
f
XtM
0.08
f *
0.19
1.00
0.31
-0.62
'
-2.81
-0.50
-0.62
-0.15
,*ป
-0.04
ซ3SUWJi
,1.00
-0.38
-0.04
0.08
tt s Above
11 3 Below
-0.23
0.46
1.62
0.12
-0.69
,--'''- * , ;
*
1.96
-0.58
*
moi x
0.23
*
0.35
*
1.15
0.46
-0.46
*
i
*"
-2.66
-0.35
-0.46
*
0.00
A J? O"? ^/
, *
0.12
4112 -x
1.15
*
*
-0.23
0.12
.
*
0.23
control limit
control limit
-------
27/44 EMSL-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992
Cobalt-60
Lab Res. 1
JY
K
KC
BB
KF
KM
BT
KX
KZ
L
LE
LF
LO
LM
LR
LT
LX
M
MA
ME
MN
MO
MP
MQ
MS
MV
MY
N
NH
NI
m
NK
NO
O
OB
OF
01*
OM
OS
OX
OT
F
=
0 s
60.0
53.0
'
1070
-
55.0
54.0
64.0
56.0
ffctt-
55.0
'
112.0
57.0
56.0
'
, '
56.0
63.0
59.0
58.0
3&0
57.0
59.0
50.6
50.0
/
59.0
'
.- * ..
' (WUK'
Res. 2
59.0
58.0
=,-... ' ,. ' -
000
56.0
51.0
64.0
54.0
6&0
56.0
114.0
56.0
55.0
,
f
55.0
59.0
59.0
56.0
12.0
57.0
f f f *
67.0
48.0
iio $ ' -
56.0
' ' I/ - i
59.0
- fi.o -
Res. 3
59.0
59.0
,*,'-''
0.01 ,
' ' , , /
-0.27
'
-1.19
2.62
-0.38
_.
"
'5^7
-0.27
' ''
1ปJ2
-0.04
-0.27
,
0.08
1.35
0.65
0.31
1.15
0.23
, ซ
*
1&17 x
ป
-0.12
ป
-1.04
2.77
-0.23
*
.
5.43 K
-0.12
*
19.98 x
0.12
-0.12
*
*
0.23
1.50
0.81
0.46
-16.40 4SJI4 X
-0.15
2.39
-2.81
-1.31
0.77
6.10
ft a Above
It s Below
0.00
* - i
2.54
-2.66
-1.15
*
0.92
ป
*
*
ป :
ซ
* ;
ป ;
S.31 X
control limit
control limit
-------
EMSL-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992 28/44
Cobalt-60
Lab
PB
f -"UL-tiiJ. ff
F0'
FO
PL
PM
FF
Jb
.'/'- /:.,;/, ,
60.0
57.0
-'/'"
56.0
" "' '
''
56.0
59.0
54.0
61.0
52.0
59.0
' '
Res. 2
54.0
'/,/ ' ' *,, ,,,,'*
'
''
56.0
55-9
/'
65.0
51.0
/
52.0
', , '
54.0
59.0
, t
55.0
45.0
64.0
7&0
/ >-'- -*; '
55.0
/
* f
f '
54.0
*, '**;'
f " f '' * '* * s f
f f J f'tf ' ""
.,../-' ., ,, ;,
60.0
56.0
,'** '','''' 'V
52.0
,*/' ""'
54.0
57.0
55.0
57.0
51.0
56.0
'
Res. 3
53.0
f ff 4$ ฃff % sf% '"'
" - '''"'" "'"; >
'< ";' ;r';- ""
''' ''; *" ,"
59.0
J' "' , ','' "
56.0
* '
56.0
53.0
'''-,"', ' ''
54.0
/ f f
55.0
56.0
' ,
57.0
50.0
65.0
, ' -6%0 '
, f ' ,
56.0
- +* , ?
f * f
54.0
"* ' '* ' (
\i' ;""';'''';,/"*'"
'"'''^''--t"^;'
';?&*.ฃ' ffy ,
59.0
57.0
'' ' t'
''' ' Si '''
56.0
, "*' '' '
57.0
59.0
56.0
55.0
55.0
56.0
' '
No data submitted
Insufficient
data
X s
Exper.
Sigma
0.58
f f ftt f ttffS
' f -'
;'"'' ',
'','''
1.73
1.00
; ;',
4.93
1.15
t
1.53
1.53
1.73
'
1.00
9.85
1.00
0,50
"', t
0.58
-
-
0.00
'
"''"\ f "
t " ,
*"' ,
0.58
0.58
2.31
'
1.53
1.15
1.00
3.06
2.08
1.73
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
fffS '**'"/;
- x/--"/ '
*f
'', '' ' ' ;':,
0.354
, '
0.236
' ^
1.120
0.236
_, f
0.354
, ,
0.354
0.354
'
0.236
3.371
0.236
0.110
'
0.118
_.
'
0.000
;;.: .: .-f
'
' : f
0.118
0.118
t
0.473
0.354
0.236
0.236
0.709
0.473
0.354
53.33
fftftsrrtt tt Jf j tt f f ft ^ fss$ .
1 ' ""}'; t J^'-!'
";, '' '' '',','', ''
"' " - , A'''/'" ';
57.00
56.00
''"/ ' t
61.67
51.67
* t t ' S
53.67
' fj
55.33
57.00
' / '* ' ' '
56.00
53.00
64.00
'8$M$
-
55.33
_,
,' ' * ,
f
54.00
, , ' ' t ','
t'
t ', >' '*'',
59.67
56.67
"
54.67
55.67
58.33
55.00
57.67
52.67
57.00
........
TAG SYMBOLS
Determined
to be an
outlier
-1.08
^" *"? Sf f'f'fff *ffff ff* ff ff
f S? 4 ,ff
v f
tt .
0.19
''
-0.15
' - '
1.81
-1.66
' ** ,
-0.96
' - '
-0.38
0.19
- " ',
-0.15
-1.19
2.62
44J8" ',
- --
-0.38
,-,
'
-0.85
t
* ' /
,
_. '
1.12
0.08
-
-0.62
-0.27
0.65
-0.50
0.42
-1.31
0.19
It s Above
U = Below
-0.92
f "ft fSs ', f " f ff
'; ''':'"''>' - *"i
'';'- -" '"
t , * ,
0.35
'' ' ' ' *
0.00
*
', *
1.96
-1.50
*
-0.81
* '
-0.23
0.35
' ' *
0.00
-1.04
2.77
473 x ;
*' '
-0.23
ป
*
*
-0.69
*
*
*
1.27
0.23
*
-0.46
*
-0.12
0.81
-0.35
0.58
-1.15
0.35
control limit
control limit
-------
29/44
EMSL-LV Intercomparison Study: Performance Evaluation-B,
14-Apr-1992
Cobalt-60
Lab
SI
SJ
SL
SN
SO
8R
SS
ST
SW
sx
SY
sz
T
^
TG
TJEI
TI
TE
U
W
X
z
Res. 1
56.0
58.0
57.0
56.0
62.0
52.0
35.0
51.0
65.0
57.0
53.0
61.0
55.0
Res. 2
56.0
*
,
56.0
'
56.0
58.0
65.0
55.0
'-.'"**'',
51.0
'
57.0
57.0
55.0
62.0
54.0
Exper.
Res. 3 Sigma
56.0 0.00
' ..
'
'
"', 'r
,
61.0 2.52
'
57.0 0.58
46.0 6.43
61.0 2.08
52.0 1.73
36.0 1.53
51.0 0.00
^
60.0 4.04
,
55.0 1.15
54.0 1.00
59.0 1.53
55.0 0.58
Rnganal
(R + SR)
0.000
-'
.,
' -
f
'
0.591
0.118
1.795
0.473
0.354
0.354
0.000
0.945
0.236
0.236
0.354
0.118
Normalized
Average
56.00
..
,^
58.33
56.67
._
53.33
62.67
53.00
34*7
51.00
60.67
56.33
54.00
60.67
54.67
(grand-avg)
,.
,
-
- -
-
-0.15
' ' 'i
0.65
*"
0.08
-
-1.08
2.16
-1.19
*M
-1.89
1.46
-0.04
-0.85
1.46
-0.62
deviation
(known)
0.00
"
-
0.81
'
0.23
-0.92
2.31
-1.04
*M
-1.73
4
1.62
0.12
-0.69
1.62
-0.46
Tag
ป
' ซ
*
ป -
*
ซ
ป
X
*
*
ป
Data sorted by Laboratory Average
Average
12.00
16.33
21.00
33.00
34.67
40.67
44.67
48.33
48.33
51.00
51.33
51.67
51.67
52.00
52.67
52.67
53.00
53.00
Tag
X
X
X
X
X
X
X
s No data submitted
0 s Insufficient data
Lab
MY
D
IA
HU
TA
BG
AZ
NI
HI
TG
DT
PW
DD
A
SD
NK
T
QU
Average
53.00
53.00
53.33
53.33
53.33
53.67
54.00
54.00
54.00
54.33
54.33
54.67
54.67
54.67
54.67
54.67
55.00
55.00
Tag
Lab
L
AK
SY
PB
AL
Q
W
RF
EL
FE
C
Z
RR
HL
GI
CE
S
HK
Average
55.00
55.00
55.33
55.33
55.33
55.33
55.33
55.33
55.33
55.33
55.67
55.67
55.67
55.67
55.67
56.00
56.00
Tag
56.00
TAG SYMBOLS
x s Determined to be an outlier
ft s Above control
li s Below control
Lab
DM
CJ
QZ
QK
LF
J
DZ
DO
CQ
BL
RV
ME
LT
KX
AI
SI
QT
PQ
limit
limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 30/44
Cobalt-60
Data sorted by Laboratory Average
Average
56.00
56.00
56.00
56.00
56.00
56.33
56.33
56.33
56.33
56.33
56.67
56.67
56.67
56.67
56.67
56.67
56.67
57.00
57.00
57.00
57.00
57.00
Tag Lab
N
HP
BO
BM
AE
U
MA
JE
I
EH
SW
RO
MP
K
JS
FL
BK
SF
QP
PM
FU
DE
Average Tag
57.00
57.33
57.33
57.33
57.33
57.33
57.67
57.67
58.00
58.33
58.33
58.33
58.33
58.67
58.67
58.67
59.33
59.33
59.33
59.33
59.67
59.67
Lab
BH
MV
GE
E
DL
BA
SC
BW
CS
ss
RZ
MS
AU
O
CO
CK
JY
1C
FZ
AW
RN
AF
Average Tag
60.00
60.33
60.67
60.67
60.67
60.67
60.67
61.00
61.67
61.67
62.67
63.33
64.00
64.00
69.67 x
71.33 x
71.67 x
102.67 x
108.00 x
109.33 x
110.00 x
113.67 x
Lab
AJ
MQ
X
TI
EB
BN
BC
CA
PV
EX
sz
NH
QW
LE
QX
P
LR
KM
FJ
AP
NJ
M
% Frequency distribution of responding labs(expected prec. vs known value)
in
_ II
- i
-6
_ ---l
"4 exp. prec. "2 , ซ*
known
value
I.I.. m _ m
+2 exp. prec. +4
1
+6
% Frequency distribution of responding labs(std. dev. vs mean value)
10- -----
-6
1
IHIlllHl
-4 std. dev. -2 0
mean
value
s No data submitted TAG SYMBOLS
0 s Insufficient data x = Determined to be an
!!_. m _ u
+2 std. dev. +4
/
tt s Above control
outlier !! a Below control
1
+6
limit
limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 31/44
Cesium-134
Statistical Summary
204 Participants
The known value of this nuclide is 24.0 pCi/1 with an expected precision of 5.0; the control limits
are 15.3 to 32.7; the warning regions are 15.3 to 18.2 and 29.8 to 32.7
84(41.2 %) Failed to respond .
7(3.4 %) Outliers -'
Statistic
112(54.9 %) Within all limits
Respondents
(O.5 %) 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
24.18
5.22
27.25
21.59
0.75
0.03
23.00
-4.17
-0.19
Grand Avg 23.42
2.02
4.08
8.63
-2.41
-0.29
23.00
-4.17
-0.49
7(5.8 %) More than 3 norm. S.D. ป,
1(0.8 %) Between 2 and 3 norm. S.D.'
. 96(80.0 %) Within 1 norm. S.D.
9
of known value
16(13.3 %) Between 1 and 2 norm. S.D.
-------
327
44 EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992
Cesium-134
Lab Res. 1
A
AB
AE
AF
AI
AJ
AK
AL
AO
AP
AE
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CO
CJ
CK
'H
CO
CQ
cs
D
DB
DD
DE
DJ
DL
DM
DO
DS
DT
24.0
- ''
26.0
24.0
23.0
23.0
21.0
20.0
49.0
,
22.0
26.0
21.0
22.0
24.0
19.0
26.0
27.0
22.0
23.0
19.0
23.0
-
29.0
24.0
24.0
24.0
24.0
22.0
23.0
22.0
22.0
23.0
23.0
24.0
22.0
23.0
24.0
24.0
Res. 2
24.0
.
24.0
23.0
22.0
23.0
22.0
24.0
48.0
23.0
25.0
22.0
22.0
25.0
29.0
26.0
27.0
22.0
22.0
25.0
22.0
'
23.0
25.0
25.0
23.0
21.0
23.0
f
23.0
23.0
24.0
23.0
23.0
24.0
21.0
21.0
22.0
<
23.0
Res. 3
24.0
24.0
22.0
22.0
23.0
22.0
23.0
S3M>
22.0
26.0
23.0
23.0
23.0
19.0
27.0
27.0
24.0
22.0
22.0
23.0
v /
27.0
24.0
24.0
21.0
23.0
23.0
f
25.0
24.0
22.0
23.0
24.0
24.0
21.0
22.0
22.0
25.0
= No data submitted
0
Insufficient
data
X 3
Exper.
Sigma
0.00
f f
1.15
1.00
0.58
0.00
0.58
2.08
..
L53
,
0.58
0.58
1.00
0.58
1.00
5.77
0.58
0.00
1.15
0.58
3.00
0.58
3.06
0.58
0.58
1.53
1.53
0.58
' . * ^
1.15
1.00
1.15
0.00
0.58
0.00
0.58
1.00
1.15
.
1.00
Rng anal
(R + SR) Average
0.000
0.236
0.236
0.118
0.000
0.118
0.473
,
0.354
0.118
0.118
0.236
0.118
0.236
1.345
0.118
0.000
0.236
0.118
0.709
0.118
0.709
0.118
0.118
0.354
0.354
0.118
0.236
0.236
0.236
0.000
0.118
0.000
0.118
0.236
0.236
0.236
24.00
,
24.67
23.00
22.33
23.00
21.67
22.33
. .
49.33
-
22.33
25.67
22.00
22.33
24.00
22.33
26.33
27.00
22.67
22.33
22.00
22.67
f
26.33
24.33
24.33
22.67
22.67
22.67
'
23.67
23.00
22.67
23.00
23.33
24.00
21.33
22.00
22.67
24.00
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
0.20
0.43
-0.15
-0.38
-0.15
-0.61
-0.38
..
8.98
-0.38
0.78
-0.49
-0.38
0.20
-0.38
1.01
1.24
-0.26
-0.38
-0.49
-0.26
1.01
0.32
0.32
-0.26
-0.26
-0.26
,
0.08
-0.15
-0.26
-0.15
-0.03
0.20
-0.72
-0.49
-0.26
0.20
ft = Above
JJ = Below
0.00
ป
0.23
-0.35
-0.58
-0.35
-0.81
-0.58
> \
8.74 x
ซ
-0.58
0.58
-0.69
-0.58
0.00
-0.58
0.81
1.04
-0.46
-0.58
-0.69
-0.46
ซ
0.81
0.12
0.12
-0.46
-0.46
-0.46
ซ :
-0.12
-0.35
-0.46
-0.35
*
-0.23
0.00
*
-0.92
-0.69
-0.46
ป
0.00
control limit
control limit
-------
EMSL-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992 33/44
Ceflium-134
Lab
DZ
E
EB
EH
EK
EL
E0
TSK
JEV
EX
FE
FJ
FL
'&tf
FU
FZ
GE
GI
GQ
ov
.. .
* fjffjf
\JMu~
HH
HI
HK
HL
-wwr'
HP
HU
''jay;
I
IA
1C
m
IE
XV
J
JE
JG
JH
JN
JQ
JS
=
0
Res. 1
25.0
23.0
24.0
24.0
,
23.0
f / '
"f ' '
f
26.0
24.0
62:0
23.0
' '
22.0
* ' f *
24.0
21.0
22.0
*
' ' / - -
J f f f
" x
X '
'
f *" ,
14.0
22.0
22.0
', ' '/ ซ -
21.0
24.0
''' ' ''' ",'
26.0
22.0
26.0
V f *'
, * f >
f
22.0
21.0
"*
,
" ' .'
25.0
Res. 2
24.0
22.0
23.0
22.0
" '", - '''
24.0
'''* ';'", ''?*
' y ' , '
29.0
21.0
; *4 '*', .
25.0 J
' ' , ' ' '
23.0
25.0
21.0
22.0
' *
/
f f f f
, f '
-'' '''/}'
* , - /' '//'', '-
24.0
23.0
22.0
'' ', , '# '', s/
21.0
24.0
/' * '' / f '-f' '''
24.0
24.0
25.0
J-V^'V- /
22.0
22.0
^
'
20.0
Res. 3
27.0
22.0
24.0
22.0
'/ ' ,
23.0
f f f
", "''
28.0
21.0
&&
24.0
r ' *= <
24.0
24.0
22.0
21.0
','
''>_.
-
f j
' ' ' "
4 / ' '
20.0
24.0
22.0
f/ff/
f
21.0
24.0
"" % s*' ,
25.0
24.0
22.0
'<'>,''
21.0
22.0
,
26.0
No data submitted
Insufficient
data
X s
Exper.
Sigma
1.53
0.58
0.58
1.15
f
0.58
':ซ,'; -
f ' / *
1.53
1.73
3.46
1.00
.-,,
1.00
0.58
0.58
0.58
'
f ^
f -. f
f 'f
5.03
1.00
0.00
f f
0.00
0.00
'
1.00
1.15
2.08
T
0.58
0.58
3.21
Rng anal
(R + SR) Average
0.354
0.118
0.118
0.236
/ * _
V f
0.118
- f - [[,
f f
'-
0.354
0.354
''/-,
-0.03
'if-:;,.?'''*', '''
' '
"" '' ',
1.47
-0.49
f f f
ป'''\iซ
0.20
'/ ' - '
-0.15
0.32
-0.72
-0.61
"
f f
<
f * f ^ "
'
' * ' ,
-1.42
-0.15
-0.49
,''''*'
-0.84
0.20
' " "', ' ' ',
0.55
-0.03
0.32
-
-0.61
-0.61
^
0.08
ft = Above
11 ^ Below
0.46
-0.58
-0.12
-0.46
/ , , - *
-0.23
, 1 \ + '
m
,',, *
1.27
-0.69
&G1 x
0.00
-' > 9 '
-0.35
'.V* '
0.12
-0.92
-0.81
*
*
.. ซ
-1.62
-0.35
-0.69
/ *
-1.04
0.00
" ^
f ^
0.35
-0.23
0.12
*
-0.81
-0.81
*
*
-0.12
control limit
control limit
-------
34/44 EMSL-LV Intercomparison
Study: Performance Evaluation-B, 14-Apr-1992
Cesium-134
Lab
JY
K
EC
BJ8-
KF
KM
KX
HZ
L
LE
LF
L<3
LM
LR
LT
M
MA
ME
MN
MO
MP
MQ
MS
MV
MIT
N
NA
m
NH
NI
NJ
NK
NO
'NT
O
OB
OF
OL
OM
OS
OX
or
p
Res. 1
27.0
21.0
43,0
28.0
25.0
30.0
19.0
35.0
26.0
42.0
21.0
25.0
25.0
26.0
23.0
22.0
12.0
22.0
'
37.0
19.0
44.0
22.0
'
'
24.0
27.0
Res. 2 Res. 3
24.0
22.0
'
42.0
24.0
24.0
18.0
21.0
'
'
26.0
26.0
43.0
22.0
23.0
*' t '
' ' '
22.0
26.0
24.0
25.0
13.9
23.0
'
23.0
18.0
4HMfc /
20.0
f f f ' J
' ' ' '. '/'
24.0
,
A A
28.0
21.0
23.0
'
'
44,0
26.0
23.0
21.0
25.0
-
. .
36.0
26.0
49,0
23.0
22.0
/
"
21.0
27.0
21.0
25.0
1&0
23.0
'- '
s f f f
27.0
20.0
45.0
19.0
^
' -
24.0
24.0
s No data submitted
0 9
Insufficient
data
x =
Exper.
Sigma
3.00
1.00
'
tM
2.00
,
1.00
6.24
3.06
5.51
9-00
-
-------
EMSL-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992 35/44
Cesium-134
Lab
PB
P&/
PM
PP
PQ
PB
Ptf
PV
PW
py
Q
QC
QK
QP
QT
QU
QW
QX
- /{, , ', ,
* /' - \"
";^>'?ป^,';\
25.0
23.0
" f " f f s
24.0
x fff
25.0
22.0
22.0
22.0
23.0
22.0
',/- 'f ' "^
Res. 2
25.0
25.0
r ff ff
25.0
* f
S
26.0
22.0
22.0
f f'f
25.0
22.0
j > " *
24.0
18.0
22.0
28.0
' * , > ",
21.0
.' , j ^ " ';'
"ty"', "'"' ";
27.0
f / f
' ,,?..; ;-/;:^
,*'''' ?'
'':''< ''"":'^'
22.0
23.0
v/' r ,
24.0
^
'
28.0
24.0
23.0
26.0
23.0
25.0
/- '
Res. 3
25.0
/ " 'fffffff " *
21.0
f ^ff f
24.0
, i.
''"/,
27.0
21.0
20.0
,
25.0
21.0
26.0
19.0
24.0
29.0
,- ;
20.0
: ' / ' ,
27.0
""/ ' "'
'^,'," < *'s'
";"""';, ','-",'
'?"; '
24.0
28.0
25.0
24.0
24.0
23.0
20.0
v
No data submitted
Insufficient
data
X s
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
0.00
2.08
,
1.00
f f ff
f-
1.00
1.00
1.00
f f
0.00
1.00
1.00
2.65
2.52
1.00
ff *
0.58
f
f
0.00
f
''
jf ' r
1.53
0.00
0.00
'
1.73
1.53
1.00
2.00
0.00
2.52
0.000
/ S
f ' s'f /
' ' f-ff
0.473
f f
0.236
;'
,"'<
0.236
0.236
0.236
ซ . >v
o.boo
0.236
0.236
0.591
0.591
0.236
0.118
..-
0.000
" f
0.354
0.000
'
o.qoo
0.354
0.354
0.236
0.473
0.000
0.591
25.00
23.33
-. ff '' f
24.00
''/--' '
' f ff
26.00
21.00
21.00
"- '- '" , - -,
25.00
22.00
25.00
20.00
21.67
29.00
** ^ " ' f f
20.67
,'" ' '
' '
27.00
'
" ''" v
'', " ''''*.;- "'
23.67
23.00
24.00
27.00
23.67
23.00
24.00
23.00
22.33
TAG SYMBOLS
Determined
to be an
outlier
0.55
-0.03
' ' >', ,
0.20
,
' ''','
0.89
-0.84
-0.84
0.55
-0.49
0.55
-1.19
-0.61
1.93
-
-0.95
', '
1.24
'
-
, ' '
, '
0.08
-0.15
0.20
1.24
0.08
-0.15
0.20
-0.15
-0.38
tt s Above
U = Below
0.35
-0.23
'-,"+,
0.00
*
, " *
0.69
-1.04
*
-1.04
*
0.35
-0.69
*
0.35
-1.39
-0.81
1.73
- *
-1.15
*
*
- - *
1.04
.
*
*
*
-0.12
-0.35
- ' ป
0.00
* '
1.04
-0.12
-0.35
0.00
-0.35
-0.58
control limit
control limit
-------
36/44
Cesium
Lab
81
SL
SO
&E
SS
Si*
sw
sx
SY
SZ
T
TA
TJ&
TG
in
TI
u
w
X
z
Average
12.33
12.33
19JX)
19.33
20.00
20.33
20.33
20.67
21.00
21.00
21.00
21.00
21.33
21.33
21.67
21.67
21.67
21.67
EMSL-LV Intercomparison Study: Performance Evaluation-B,
-134
Res. 1
20.0
-
21.0
<
24.0
26.0
26.0
23.0
12,0
22.0
18.0
26.0
22.0
25.0
22.0
Res. 2
21.0
,
21.0
24.0
26.0
26.0
24.0
1*4
j f
22.0
" s
21.0
25.0
20.0
24.0
22.0
Tag
X
X
Res. 3
20.0
'
24.0
*
23.0
22.0
26.0
22.0
Exper.
Sigma
0.58
"
'
'
1.73
'
0.58
'
2.31
0.00
1.00
!&*> OJ&
22.0
'
24.0
22.0
24.0
24.0
22.0
Data
Lab
TA
MY
NI
HI
QU
SI
NK
QZ
TI
Q
PW
HP
GE
DL
QW
LF
JE
J
_, *
0.00
',
3.00
2.08
2.00
0.58
0.00
Rng anal
(R + SR)
0.118
*
'
0.354
f
0.118
0.473
0.000
0.236
0.118
0.000
0.709
0.473
0.473
0.118
0.000
14-Apr-1992
Normalized deviation
Average (grand-avg) (known)
20.33
f
f
22.00
._
23.67
24.67
26.00
23.00
12.33
22.00
"
21.00
24.33
22.00
24.33
22.00
-1.07
'
'
-0.49
f * f
0.08
'
0.43
0.89
-0.15
-3.84
-0.49
t
-0.84
0.32
-0.49
0.32
-0.49
-1.27
*
"
-0.69
-0.12
0.23
0.69
-0.35
-4>O4
-0.69
-1.04
0.12
-0.69
0.12
-0.69
Tag
*
*
""*
* :
ป \
X i
ซ.
* i
sorted by Laboratory Average
Average
s No data submitted
0 = Insufficient data
X
21.67
21.67
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.00
22.33
22.33
22.33
22.33
Tag
Lab
GI
AK
Z
W
TG
SS
QP
MA
K
HL
FE
DM
BN
AZ
SF
E
BM
BG
Average
22.33
22.33
22.33
22.33
22.67
22.67
22.67
22.67
22.67
22.67
22.67
22.67
22.67
22.67
22.67
23.00
23.00
23.00
TAG SYMBOLS
= Determined to be an outlier
Tag
ft s Above
11 = Below
control
control
Lab
BA
AU
AL
AI
N
MS
MP
EH
DO
CS
CK
CJ
CE
BO
BL
T
SD
S
limit
limit
-------
EMSL-LV Intercomparison Study: Performance Evaluation-B, 14-Apr-1992 37
Cesium-134
/44
Data sorted by Laboratory Average
Average
23.00
23.00
23.00
23.00
23.00
23.00
23.00
23.00
23.33
23.33
23.33
23.33
23.33
23.67
23.67
23.67
23.67
23.67
23.67
24.00
24.00
24.00
Tag Lab
RO
LE
BX
FU
D
CQ
AJ
AF
PM
ME
IA
EL
DD
SW
RZ
RN
JS
EB
CO
SC
RR
PQ
Average Tag
24.00
24.00
24.00
24.00
24.00
24.00
24.00
24.00
24.00
24.00
24.33
24.33
24.33
24.33
24.33
24.33
24.67
24.67
25.00
25.00
25.00
25.00
Lab
O
MV
L
JY
HU
FL
DT
DE
BC
A
X
U
1C
FZ
CA
C
SY
AE
QT
QK
PB
I
Average Tag
25.33
25.67
26.00
26.00
26.00
26.00
26.33
26.33
26.33
26.33
27.00
27.00
27.00
27.67
29.00
29.00
32.33
43.00 x
43.33 x
44.67 x
49.33 x
50.00 x
Lab
DZ
AW
SZ
PV
LT
KX
P
MQ
BW
BH
RV
RF
BK
EX
QX
NH
LR
KM
M
NJ
AP
FJ
% Frequency distribution of responding labs( expected prec. vs known value)
. .| .
II _
10
ฐ -6
Illlfl
T .fillllliii,
'" ซP-'p=- "S ' known
value
_ _
+'2 eXP/PreC' *
1
+6
% Frequency distribution of responding labs(std. dev. vs mean value)
*j - -
U_ -------------
ml.
-6
= No data
___ Tmmnii
-4 std.dev. '2 ' J^
value
submitted TAG SYMBOLS
0 & Insufficient data x s Determined to be an
ff~ T T
+2 std. dev. +4
tt s Above control
outlier li s Below control
1
+6
limit
limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 38/44
Cesium-137 Statistical Summary 204 Participants
The known value of this nuclide is 22.0 pCi/1 with an expected precision of 5.0; the control limits
are 13.3 to 30.7; the warning regions are 13.3 to 16.2 and 27.8 to 30.7
83(40.7 %) Failed to r
6(2.9 %) Outliers '
Statistic
1O7(52.5 %) Within all limits
Respondents
8(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
23.98
4.92
24.17
20.50
8.98
0.40
23.33
6.06
0.27
Grand Avg 23.20
2.35
5.52
10.13
5.44
0.51
23.33
6.06
0.57
6(S.O %) More than 3 norm. S.D. ปป%
8(6.6 %) Between 2 and 3 norm. S.D.
.88(72.7 %) Within 1 norm. S.D.
of Known value
19(15.7 %) Between 1 and 2 norm. S.D.
-------
39/44 EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992
Cesium-137
Lab
A
AB
AE
AF
AI
AJ
AK
AL
AO
AP
AE
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
B9
BW
C
CA
CE
C
26.0
24.0
18.0
18.0
23.0
24.0
25.0
25.0
21.0
23.0
28.0
23.0
f
22.0
23.0
24.0
22.0
' , ' ' ' >", ';
24.0
21.0
26.0
24.0
24.0
23.0
* , '
23.0
26.0
23.0
23.0
25.0
f
21.0
24.0
23.0
23.0
20.0
24.0
22.0
22.0
'
46.0
"
23.0
25.0
16.0
18.0
24.0
21.0
22.0
26.0
21.0
22.0
30.0
22.0
,
33.0
25.0
25.0
22.0
% *' f ff 'v
28.0
23.0
f "**" *v
34.0
26.0
25.0
23.0
24.0
26.0
23.0
24.0
21.0
26.0
No data submitted
Insufficient
data
X
Exper.
Sigma
0.58
'
0.58
1.00
1.53
0.00
0.58
1.15
,
0ป6&
2.08
1.00
1.53
3.46
1.53
2.52
1.53
0.58
1.15
0.58
1.15
0.58
6.35
1.15
1.00
1.15
','.;
3.06
1.00
V ' "*
f f
5.29
1.53
1.00
0.00
0.58
0.00
2.31
0.58
2.31
2.52
Rnganal
(R + SR) Average
0.118
f
0.118
0.236
0.354
0.000
0.118
0.236
oils
0.473
0.236
0.354
0.709
0.354
0.591
0.354
0.118
0.236
0.118
0.236
0.118
1.570
0.236
0.236
0.236
0.709
0.236
1.345
0.354
0.236
0.000
0.118
0.000
0.473
0.118
0.473
0.591
24.67
' -
22.67
23.00
21.67
24.00
21.67
20.67
46M
23.67
24.00
16.33
20.00
24.33
21.33
23.67
25.33
21.67
22.33
29.33
22.33
,
25.67
23.67
24.00
21.33
-
24.67
22.00
28.00
24.33
25.00
23/00
23.33
26.00
21.67
23.33
23.67
23.67
TAG SYMBOLS
= Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
0.51
'
-0.18
-0.07
-0.53
0.28
-0.53
-0.88
8.01
'
0.16
0.28
-2.38
-1.11
0.39
-0.65
0.16
0.74
-0.53
-0.30
2.13
-0.30
.
0.86
0.16
0.28
-0.65
'
0.51
-0.41
1.66
0.39
0.62
-0.07
0.05
0.97
-0.53
0.05
0.16
0.16
ft s Above
Jl s Below
0.92
V
0.23
0.35
-0.12
0.69
-0.12
-0.46
*
8.43 x
ซ
0.58
0.69
-1.96
-0.69
0.81
-0.23
0.58
1.15
-0.12
0.12
2.54
0.12
* :
1.27
0.58
0.69
-0.23
*
0.92
0.00
2.08
0.81
1.04
0.35
ซ
0.46
1.39
*
-0.12
0.46
0.58
ป
0.58
control limit
control limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992 40/44
Ceaium-137
Lab Res. 1
DZ
E
EB
EH
/EK
EL
JBO
EX
FE
FJ
FL
FN
FU
JPW
FZ
GE
GI
GQ
at?
G2J
ffl
HK
HL
HN
HP
HU
I
IA
1C
B>'
m '
JIT
J
JE
JO
JH
JN,
tTQ
JS
3
0
30.0
23.0
26.0
23.0
''''/ ' " ,' ,'
20.0
/,', ' '"' ';
22.0
23.0
.. ' 4&ป/'
27.0
'
22.0
' .- .: -V
22.0
23.0
22.0
' ,'
-', *' >-* , !'' '
13.0
23.0
24.0
' ' ' '' '"'<
23.0
23.0
22.0
25.0
22.0
" '-' "*^;T-
' "*
22.0
23.0
*
'
f -
17.0
Res. 2
27.0
21.0
26.0
22.0
24.0
" ' ' / '
26.0
22.0
48.0
24.0
ff
24.0
,' .. ;
24.0
23.0
22.0
' '- - ''. -
ff ' f s
23.0
22.0
23.0
*"/, -'-
23.0
23.0
: , *'' &',"
24.0
26.0
24.0
\ป ;/J>
'
22.0
23.0
'
.- .-.-
19.0
Res. 3
27.0
22.0
26.0
22.0
""'" '^ -Y'''
21.0
f -V
,"*'"/," ':,;<'',
25.0
21.0
40-0
20.0
f f f f
24.0
/ .: . .-*'.-
24.0
19.0
23.0
'' ' / ''', '
'/',, "f
' '','>,'''
22.0
22.0
22.0
* t
23.0
23.0
25.0
26.0
25.0
' "
''
22.0
23.0
f
.. f
20.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
1.73
1.00
0.00
0.58
': ',!">" , '"
2.08
/! / '- ,"'^
2.08
1.00
4.02 '
3.51
1.15
.
1.15
2.31
0.58
' , '
' '
5.51
0.58
1.00
v
0.00
0.00
1.53
0.58
1.53
f
0.00
0.00
1.53
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.354
0.236
0.000
0.118
'->' ,..,,
0.473
' '-^'
0.473
0.236
'wป
0.827
f "* *"
0.236
^ f .
0.236
0.473
0.118
- r
' ,
1.345
0.118
0.236
0.000
0.000
0.354
0.118
0.354
0.000
0.000
0.354
28.00
22.00
26.00
22.33
^ ', /'** ' '',,
21.67
"/\] '*>V"'V'*^
24.33
22.00
' ' ' 42,67
23.67
/
23.33
f f f 'f
23.33
21.67
22.33
f ^ f
' f f f f f
' ''''',';'",
19.33
22.33
23.00
', '''
23.00
23.00
23.67
25.67
23.67
22.00
23.00
18.67
TAG SYMBOLS
Determined
to be an
outlier
1.66
-0.41
0.97
-0.30
' ''''' ''
-0.53
^*-y v- - '-^t
0.39
-0.41
\T4
0.16
'
0.05
'
0.05
-0.53
-0.30
* *
-1.34
-0.30
-0.07
-0.07
-0.07
0.16
0.86
0.16
-0.41
-0.07
..
-1.57
IT s Above
li s Below
2.08
0.00
1.39
0.12
'" - , *
-0.12
"" X ฃ. .,
:'/-' ''ป''>,
''!'; ,- '
0.81
0.00
7,16 x
0.58
*
0.46
' *
0.46
-0.12
0.12
* -
ซ
ป
.. ^ . ^^.,
-0.92
0.12
0.35
V
0.35
0.35
' / ' ซ '
0.58
1.27
0.58
*
.
0.00
0.35
*
*
-1.15
control limit
control limit
-------
417
44 EMSL-LV Intercomparison
Ceaium-137
Lab Res. 1
JY
K
KC
KB
KF
KM
KX
KZ
L
LE
LF
LG
IM
LR
LT
LX
M
MA
ME
MO
MP
MQ
MS
MV
MY
N
f|A
NO
NH
NI
N*J
NK
HO
!NT/
O
OB
OF
OL
OM
OS
OX
OY
P
24.0
21.0
'
'
43.0
24.0
22.0
32.0
21.0
....
34.0
20.0
44,0
22.0
29.0
""
23.0
24.0
25.0
25.0
28.0
21.0
23.0
18.0
'4WI
20.0
,
24.0
>
16.0
Res. 2
23.0
27.0
,
4L&
23.0
19.0
32.0
25.0
12.0
20.0
42.0
23.0
22.0
20.0
28.0
26.0
25.0
28.0
22.0
27.0
18.0
48.0
23.0
''''-,, < '
24.0
*
29.0
Res. 3
26.0
26.0
f f S ^
,,, :
431$
24.0
21.0
23.0
22.0
f
25.0
20.0
, 42.0
22.0
24.0
'
20.0
27.0
25.0
24.0
28.0
20.0
'
26.0
19.0
' 40J&/
21.0
j S
24.0
21.0
= No data submitted
0
Insufficient
data
X s
Study: Performance Evaluation-B, 14-Apr-1992
Exper.
Sigma
1.53
3.21
..
' '
- L1S '
0.58
1.53
5.20
2.08
-
11.06
0.00
1*15
0.58
3.61
^
1.73
2.08
0.58
0.58
0.00
1.00
,' ,
2.08
0.58
1.00
1.53
jf f
0.00
6.56
Rnganal
(R + SR) Average
0.354
0.709
'
0.^6
0.118
0.354
1.120
0.473
..
'
4.046
0.000
0.236
0.118
0.827
0.354
0.473
0.118
0.118
0.000
0.236
0.473
0.118
0.236
0.354
0.000
2.020
24.33
24.67
f
4Jl^
23.67
20.67
29.00
22.67
%
23.67
20.00
42.67
22.33
25.00
21.00
26.33
25.33
24.67
28.00
21.00
'
25.33
18.33
mm
21.33
24.00
22.00
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
0.39
0.51
* * f *
f ''
6.63
0.16
-0.88
2.01
-0.18
0.16
-1.11
6.?4
-0.30
0.62
-0.76
1.09
0.74
0.51
1.66
-0.76
, ,
0.74
-1.68
ฃM -
-0.65
0.28
-0.41
ft s Above
11 = Below
0.81
0.92
^
*
*
7,64 x
0.58
-0.46
2.42
0.23
ซ
*
0.58
-0.69
*
f*16 x
0.12
1.04
*
-0.35
1.50
1.15
0.92
2.08
-0.35
*
*
1.15
-1.27
&6 X
-0.23
* ,
*
0.69
ป
*
ซ
*
ซ
ป
ป
0.00
control limit
control limit
-------
EMSL-LV Intercomparison Study: Performance
Evaluation-B, 14-Apr-1992 42/44
Cesium-137
Lab
PB
' &t* '
j K \tf
iiiiiu -
i^Gf
Pfc
PM
pp
PQ
' j^t-utt
PB
P0
PV
PW
FIT,
Q
', ''f" ?;
' /' 'ff ' '' ' '*$
f f ff ^ "" 's
'f .' '' f ' /
,"', '"'ff 'f'ff'f '['
25.0
23.0
"' ' /
*
22.0
21.0
'! '
21.0
,-'
21.0
26.0
f f"" ^
28.0
19.0
25.0
30.0
''''''",,
22.0
' *'; ^ '
'...'. //',.,*
19.0
" S ff f
' " ' ',
' ', ' > ^'f
/< , 1 *, f. '
*' ' '' " /! "i
24.0
26.0
'C^'ฃ; 'A..,:,...
22.0
' "'/','t; "^ "f
' f
20.0
20.0
22.0
26.0
25.0
21.0
j f ' '
Res. 3
24.0
';'"!, ",', 't
' ^ ff f's ^ ''
'/' f ^ ff f '
' ' *
?'/$'**/,
25.0
' ''" /f
22.0
f f
', < ^ ',
- ,,
33.0
20.0
*" f
21.0
3$ ff* f '
21.0
24.0
' '' '
25.0
23.0
24.0
30.0
/ '
f-
22.0
' f'r
' . '.'?:
' ,,'
19.0
, ff.f~~ ff f
fff f
,',; , f
ff-f f f
<"', /' '', '
;>'";f ,./ -'/
' '/f
24.0
24.0
,''/'
24.0
23.0
22.0
23.0
23.0
27.0
22.0
f, ' "'
= No data submitted
0 s
Insufficient
data
X S
Exper.
Sigma
0.58
"f "!
f / * '
f ff * f ' ' * *
' f f f ' ; f
-f/*f, -''"ซ
0.00
; "; ''
0.58
/
''
5.69
1.00
'
0.58
' '
0.58
1.53
'
3.00
3.51
1.00
0.00
,
0.58
'
'
0.00
'
'
'
' ,
0.58
2.00
.-.-. /
1.00
1.53
2.00
0.58
2.08
4.73
0.58
Rng anal
(R + SR)
0.118
"-, ;x;v
f ' " f f$s f
', -, '", -'/;, %'
p.ooo
' / ' "'
0.118
f
f
1.570
0.236
0.118
-
0.118
0.354
f f
0.709
0.827
0.236
0.000
'
0.118
'
* f.
0.000
t
'
f '
ff
0.118
0.473
" f
0.236
0.354
0.473
0.118
0.473
1.120
0.118
Normalized deviation
Average
23.33
** " ff ff"f"$ ^
ฅ f ftff ff ffff
f f ' jfff' f'J
f fffff? f
* "",4 - ^V^t
25.00
y fj
22.33
/
ff
28.33
20.00
, f fff
21.33
,
20.67
24.33
'
25.00
22.67
25.00
30.00
f f ' f
21.67
,
,
19.00
- _.
f
" * ' /
' f
'' "/' ,
24.33
24.00
f
23.00
21.33
22.00
22.33
23.67
23.33
21.33
-
TAG SYMBOLS
Determined
to be an outlier
(grand-avg)
0.05
''/;* ' ''/",'/''/'' ' '' f'
f 'f ', s ' / ff '' 'ft
f ffj- f ' '* /J$/
''/ '''' tf f f'f ' ' ","''
' ,',Sf' Af ','-'' 'f', '"','
0.62
, ' ; ' '
-0.30
f
j f
1.78
-1.11
-0.65
f ,
-0.88
0.39
f
0.62
-0.18
0.62
2.36
' f * f
-0.53
/ f f
'
-1.45
' '
*
, ' '-
,
'' '
0.39
0.28
f f ?
-0.07
-0.65
-0.41
-0.30
0.16
0.05
-0.65
(known) Tag
0.46
,,,'<:"' ''""'.''',
f "' f f
fjf, J f' J
',f','/ f W'
"''::.'?;^:t.
1.04
,"'' ''''' *
0.12
' * '
' ,, *
2.19
-0.69
',.. * .
-0.23
*
-0.46
0.81
/' * 'I
1.04
0.23
1.04
2.77
* *':
-0.12
ป
*
*
-1.04
_,
_
*
, ,,, ,
0.81
0.69
V
0.35
-0.23
0.00
0.12
0.58
0.46
-0.23
.. ป
1T s Above control limit
li s Below control limit
-------
43/44 EM8L-LV Intel-comparison Study: Performance Evaluation-B, 14-Apr-1992
Cesium-137
Lab Res. 1
SI 18.0
SL
SN
SO
SR
SS 23.0
SW 22.0
SX 20.0
SY 23.0
SZ 23.0
T 25.0
TA 1&&
^flฃj.
tsu
TG 23.0
1H
TI 26.0
IJBf
U 25.0
W 22.0
X 31.0
Z 22.0
Average
12.33
16.33
18.33
18.67
18.67
18.67
19.00
19.33
20.00
20.00
20.00
20.67
20.67
20.67
21.00
21.00
21.33
21.33
Res. 2
20.0
', ' ,;
"
' ,
23.0
23.0
18.0
23.0
25.0
22.0
12.0
-
23.0
20.0
..
24.0
21.0
31.0
23.0
Tag
x
= No data submitted
0 s Insufficient data
. Erper. Rng anal Normalized deviation
Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
18.0 1.15 _ 0.236 18.67 -1.57 ,.-1-15,
", .-, ',*'-' ' ซ
- "-'- - "',-'- *,"'".',''',, * ;
' ' ' ' ' / *
*
25.0 1.15 0.236 23.67 0.16 0.58
23.0 0.58 0.118 22.67 -0.18 0.23
18.0 1.15 0.236 18.67 -1.57 -1.15
19.0 2.31 0.473 21.67 -0.53 -0.12
23.0 1.15 0.236 23.67 0.16 0.58
23.0 1.53 0.354 23.33 0.05 0.46
12J> &S& Q<118 12.33 -3*76 -3>35 x \
-*
, *
23.0 0.00 0.000 23.00 -0.07 0.35
, *
24.0 3.06 0.709 23.33 0.05 0.46
,.-,,' ^ ,- , ป
22.0 1.53 0.354 23.67 0.16 0.58
21.0 0.58 0.118 21.33 -0.65 -0.23
27.0 2.31 0.473 29.67 2.24 2.66
24.0 1.00 0.236 23.00 -0.07 0.35
Data sorted by Laboratory Average
Lab Average Tag Lab Average Tag Lab
TA 21.33 RU 22.00 CK
AZ 21.33 Q 22.33 S
NI 21.33 NK 22.33 PQ
SX 21.33 CE 22.33 MA
SI 21.33 BG 22.33 HK
JS 21.67 SY 22.33 GI
RF 21.67 QZ 22.33 EH
HI 21.67 GE 22.33 BO
PW 21.67 EL 22.33 BM
LT 21.67 DL 22.67 SW
BA 21.67 BL 22.67 QU
QK 21.67 AK 22.67 LF
L 21.67 AI 22.67 AE
AL 22.00 RZ 23.00 Z
N 22.00 P 23.00 TG
MP 22.00 J 23.00 RR
W 22.00 FE 23.00 JE
SF 22.00 E 23.00 HU
TAG SYMBOLS IT a Above control limit
x s Determined to be an outlier !) = Below control limit
-------
EMSL-LV Intel-comparison Study:
Ceaium-137
Performance Evaluation-B, 14-Apr-1992 44/44
Data sorted by Laboratory Average
Average Tag
23.00
23.00
23.00
23.00
23.33
23.33
23.33
23.33
23.33
23.33
23.33
23.33
23.67
23.67
23.67
23.67
23.67
23.67
23.67
23.67
23.67
23.67
% Frequency
Lab Average
HP 23.67
HL 23.67
D 23.67
AF 23.67
TI 24.00
T 24.00
SD 24.00
PB 24.00
FZ 24.00
FU 24.33
DM 24.33
DD 24.33
U 24.33
SZ 24.33
88 24.33
SC 24.67
LR 24.67
KX 24.67
1C 24.67
I 25.00
FL 25.00
DT 25.00
Tag Lab
DO
C
BH
AU
RO
O
CA
AW
AJ
RN
QP
JY
EX
CQ
BC
MV
K
CJ
A
QW
QT
PM
Average Tag
25.00
25.00
25.33
25.33
25.33
25.67
25.67
26.00
26.00
26.33
28.00
28.00
28.00
28.33
29.00
29.33
29.67
30.00
42.33 x
42.67 x
42.67 x
46.33 x
47.00 x
Lab
ME
CS
NH
MS
BK
LA
BW
EB
DE
MQ
MY
DZ
CO
PV
LE
BN
X
QX
KM
M
FJ
AP
NJ
distribution of responding labs(expected prec. vs known value)
IO" ----- - -
ฐ -i ' -4
1
exp. prec. '2.
| Hi |
.tnllm.- .
0 ^"2 G3CD TJrGC "^^
value
1
+6
% Frequency distribution of responding labs(std. dev. vs mean value)
10" ------------
1
'
1 II
1 ill .
IH| |||||||||H ._ i
ฐ -6 ' -4
s No data submitted
0 s Insufficient data
std. dev. "2
TAG
6 ' +2 std.'dev. +'4
mean
value
SYMBOLS ft s Above control
x s Determined to be an outlier 11 s Below control
+6
limit
limit
------- |