&EPA
-United States
Environmental Protection
Agency
Office of Research and
Development
Washington, DC 20460
EPA/600/R-96/023
February 1996
Gamma in Water
Performance
Evaluation Study
A Statistical Evaluation of
the November 3, 1995 Data
023RSL96 cov-023
-------
Gamma in Water
Performance Evaluation Study
November 3, 1995
Environmental Protection Agency
National Exposure Research Laboratory
Characterization Research Division
Las Vegas, Nevada
-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
NATIONAL EXPOSURE RESEARCH LABORATORY
CHARACTERIZATION RESEARCH DIVISION-LAS VEGAS
P.O. BOX 93478
LAS VEGAS, NEVADA 89193-3478
(702/798-2100)
Dear Participant,
Enclosed are the results of the Analytical Sciences Branch (CRD-LV)
Performance Evaluation Study for Gamma in Water; November 3, 1995.
The known value for each analysis was determined by gravimetric methods,
checked by chemical analyses performed by CRD-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 George Dilbeck at 702/798-2104 or Patricia Honsa at 702/798-2141.
Sincerely,
George Dilbeck
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.
-------
CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995 1/37
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 separntpd from the next by n new png* or n 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. 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.
-------
2/37 CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995
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, CRD-LV, 702/798-2141.
-------
CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995
3/37
Cobalt-60 Statistical Summary 193 Participants
The known value of this nuclide is 60.0 pCi/1 with an expected precision of 5.0; the control limits
are 51.3 to 68.7; the warning regions are 51.3 to 54.2 and 65.8 to 68.7
33(17.1 %) Failed to respond .
4(2.1 %) Outliers-'
8(4.1 %) Out of control'
but not an outlier
Statistic
136(70.5 %) Within all limits
Respondents
*- 12(6.2 %) 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
65.31
47.67
2272.59
72.99
8.85
0.11
59.67
-0.56
-0.01
Grand Avg 59.65
4.05
16.44
6.80
-0.58
-0.09
59.67
-0.56
-0.08
12(7.5 %) More than 3 norm. S.D.
12(7.5 %) Between 2 and 3 norm. S.D
2(57.5 %) Within 1 norm. S.D.
of known value
44(27.5 %) Between 1 and 2 norm. S.D.
-------
4/37 CRD-LV Performance
Evaluation
: Gamma in Water, 3
-Nov-1995
Cobalt-60 ]
Lab
A
AE
AF
AH
AI
AJ
AK
AL
AN
AP
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BW
C
CA
CC
CE
CG
CJ
CK
CM
CO
CP
CQ
CS
CX
D
DD
DE
DG
DH
DL
=
0 =
Res. 1
54.0
61.0
61.0
57.0
61.0
62.0
52.0
63.0
61.0
58.0
58.0
65.0
67.0
68.0
61.0
57.0
90.0
62.0
64.0
63.0
58.0
60.0
58.0
56.0
62.0
58.0
64.0
51.0
64.0
61.0
51.0
60.0
71.0
58.0
; - ''
60.0
57.0
63.0
61.0
63.0
Res. 2
52.0
62.0
59.0
53.0
58.0
58.0
52.0
62.0
60.0
58.0
57.0
64.0
52.0
67.0
61.0
56.0
46.0
63.0
t .... .. .. ' ..
62.0
58.0
61.0
57.0
60.0
55.0
59.0
59.0
63.0
58.0
62.0
62.0
60.0
66.0
72.0 .
61.0
58.0
58.0
63.0
62.0
62.0
Res. 3
50.0
61.0
59.0
55.0
60.0
59.0
55.0
57.0
61.0
58.0
59.0
66.0
52.0
63.0
61.0
58.0
72.0
61.0
63.0
59.0
62.0
59.0
55.0
56.0
65.0
59.0
62.0
65.0
62.0
56.0
56.0
60.0
73.0
61.0
59.0
58.0
62.0
60.0
61.0
No data submitted
Insufficient
data
X s
Exper.
Sigma
2.00
0.58
1.15
2.00
1.53
2.08
1.73
3.21
0.58
0.00
1.00
1.00
8.66
2.65
0.00
1.00
22.12
1.00
1.00
2.65
2.08
1.53
2.52
0.58
3.00
0.58
1.00
7.00
1.15
3.21
4.51
3.46
1.00
1.73
, - , ,
1.00
0.58
0.58
1.00
1.00
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.473
0.118
0.236
0.473
0.354
0.473
0.354
0.709
0.118
0.000
0.236
0.236
2.470
0.591
0.000
0.236
8.996
0.236
0.236
0.591
0.473
0.354
0.591
0.118
0.709
0.118
0.236
2.245
0.236
0.709
1.120
0.709
0.236
0.354
0.236
0.118
0.118
0.236
0.236
52.00
61.33
59.67
55.00
59.67
59.67
53.00
60.67
60.67
58.00
58.00
65.00
57.00
66.00
61.00
57.00
69.33
62.00
+ ,
63.00
60.00
60.33
58.67
57.67
55.67
62.00
58.67
63.00
58.00
62.67
59.67
55.67
62.00
72.00
60.00
59.00
57.67
62.67
61.00
62.00
TAG SYMBOLS
Determined
to be an
outlier
-2.65
0.58
0.01
-1.61
0.01
0.01
-2.30
0.35
0.35
-0.57
-0.57
1.85
-0.92
2.20
0.47
-0.92
3.35
0.81
1.16
0.12
0.24
-0.34
-0.69
-1.38
0.81
-0.34
1.16
-0.57
1.05
0.01
-1.38
0.81
4.28
0.12
-0.23
-0.69
1.05
0.47
0.81
ft s Above
li = Below
-2.77
0.46
-0.12
-1.73
*'*
-0.12
-0.12
-2.42
0.23
0.23
-0.69
-0.69
1.73
-1.04
2.08
0.35
-1.04
3.23 ft
0.69
- , »
1.04
0.00
0.12
-0.46
-0.81
' , " " *
-1.50
0.69
-0.46
1.04
, , , ,
-0.69
0.92
-0.12
*
-1.50
0.69
4.16 ft
0.00
- » >
-0.35
-0.81
0.92
0.35
0.69
control limit
control limit
-------
CRD-LV Performance
Cobalt-60
Lab
DM
DO
DR
DT
DZ
E
EA
EB
EL
EW
EX
EZ
FJ
FK
FL
FU
FZ
GE
GI
GL
GQ
m
HJ
HK
HL
HP
HX
I
1C
J
JE
JG
JI
JS
JY
K
KH
KL
KX
L
LE
LF
LR
LT
M
Res. 1
54.0
59.0
-
56.0
58.0
58.0
60.0
55.0
58.0
"-'-,v^,*7;":?
66.0
56.0
61.0
N
62.0
53.0
63.0
53.0
59.0
55.0
69.0
57.0
61.0
61.0
59.0
59.0
54.0
59.0
60.0
60.0
62.0
61.0
69.0
54.0
67.0
55.0
56.0
65.0
61.0
60.0
64.0
60.0
59.0
Res. 2
55.0
64.0
^
57.0
62.0
58.0
61.0
55.0
58.0
^ \, ^" >-'
67.0
59.0
62.0
67.0
57.0
58.0
57.0
59.0
55.0
67.0
63.0
59.0
61.0
57.0
57.0
62.0
58.0
60.0
61.0
57.0
-
62.0
67.0
55.0
59.0
60.0
61.0
64.0
59.0
53.0
60.0
59.0
59.0
Res. 3
55.0
65.0
60.0
, 59.0
59.0
60.0
56.0
61.0
71.0
62.0
61.0
61.0
54.0
58.0
57.0
58.0
58.0
72.0
64.0
59.0
61.0
57.0
55.0
65.0
59.0
59.0
60.0
60.0
63.0
60.0
56.0
67.0
58.0
58.0
63.0
56.0
59.0
59.0
62.0
55.0
s No data submitted
0 s
Insufficient
data
x =
Evaluation
Exper.
. Gamma in Water, 3-Nov-1995
Rng anal
Sigma (R + SR) Average
0.58
3.21
-
2.08
2.08
0.58
0.58
0.58
1.73
2.65
3.00
0.58
3.21
2.08
2.89
2.31
0.58
1.73
2.52
3.79
1.15
0.00
1.15
2.00
5.69
0.58
0.58
0.58
2.52
1.00
4.73
1.00
4.62
2.52
2.52
1.00
2.52
3.79
2.65
1.53
2.31
0.118
0.709
,,s
0.473
0.473
0.118
0.118
0.118
0.354
0.591
0.709
0.118
0.709
0.473
0.591
0.473
0.118
0.354
0.591
0.827
0.236
0.000
0.236
0.473
1.570
0.118
0.118
0.118
0.591
0.236
1.120
0.236
0.945
0.591
0.591
0.236
0.591
0.827
0.591
0.354
0.473
54.67
62.67
X N \
57.67
59.67
58.33
60.33
55.33
59.00
68.00
59.00
61.33
63.33
54.67
59.67
55.67
58.67
56.00
69.33
61.33
59.67
61.00
57.67
57.00
60.33
58.67
59.67
60.33
59.67
62.00
65.33
55.00
64.33
57.67
58.33
64.00
58.67
57.33
61.00
60.33
57.67
TAG SYMBOLS
Determined
to be an
outlier
5/37 1
Normalized deviation
(grand-avg) (known) Tag
-1.73
1.05
-0.69
0.01
-0.46
0.24
-1.50
-0.23
2.89
-0.23
0.58
1.28
-1.73
0.01
-1.38
-0.34
-1.26
3.35
0.58
0.01
0.47
-0.69
-0.92
0.24
-0.34
0.01
0.24
0.01
0.81
1.97
-1.61
1.62
-0.69
-0.46
1.51
-0.34
-0.80
0.47
0.24
-0.69
IT = Above
Ji = Below
-1.85
0.92
-0.81
-0.12
-0.58
0.12
-1.62
-0.35
' \
2.77
-0.35
0.46
... ... ..... _ ...... ^
1.15
:' l i ' .ft-;'*
-1.85
-0.12
-1.50
-0.46
-1.39
3.23 11
0.46
-0.12
0.35
-0.81
-1.04
0.12
-0.46
-0.12
0.12
-0.12
0.69
1.85
-1.73
1.50
-0.81
-0.58
1.39
-0.46
-0.92
0.35
0.12
-0.81
control limit
control limit
'
-------
6/37 CRD-LV Performance
Evaluation
Gamma in Water, 3-Nov-1995
Cobalt-60 1
Lab
MA
ML
MP
MQ
MV
MX
MY
N
NH
NJ
NK
NO
NF*
NZ
O
OA
OB
ok
OL
OM
OZ
P
PB
PE
PI
PM
PQ
PU
PV
PW
Q
QJ
QM
QP
QT
QU
QW
QX
QZ
R
RF
RH
RL
RO
RR
Res. 1
61.0
63.0
58.0
66.0
.. V.- /
62.0
56.0
54.0
62.0
64.0
60.0
47.0
72.0
64.0
50.0
70.0
59.0
67.0
59.0
67.0
57.0
58.0
54.0
59.0
64.0
54.0
61.0
61.0
57.0
60.0
61.0
55.0
50.0
59.0
59.0
Res. 2
61.0
62.0
54.0
63.0
67.0
56.0
56.0
63.0
64.0
59.0
47.0
73.0
65.0
, \
49.0
70.0
58.0
63.0
59.0
60.0
60.0
59.0
56.0
60.0
59.0
57.0
63.0
61.0
58.0
60.0
59.0
57.0
52.0
63.0
59.0
Res. 3
60.0
62.0
62.0
57.0
65.0
56.0
59.0
65.0
63.0
58.0
47.0
65.0
66.0
50.0
60.0
58.0
61.0
56.0
68.0
61.0
57.0
56.0
59.0
57.0
58.0
64.0
63.0
60.0
58.0
61.0
56.0
53.0
59.0
60.0
s No data submitted
0 &
Tn.sttfficient
data
x =
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand- avg) (known) Tag
0.58
0.58
4.00
4.58
2.52
0.00
2.52
1.53
0.58
1.00
0.00
4.36
1.00
0.58
5.77
0.58
3.06
1.73
4.36
2.08
1.00
1.15
0.58
3.61
2.08
1.53
1.15
1.53
1.15
1.15
1.00
. 1.53
2.31
0.58
0.118
0.118
0.945
1.120
0.591
0.000
0.591
0.354
0.118
0.236
0.000
0.945
0.236
0.118
1.345
0.118
0.709
0.354
0.945
0.473
0.236
0.236
0.118
0.827
0.473
0.354
0.236
0.354
0.236
0.236
0.236
0.354
0.473
0.118
60.67
62.33
58.00
62.00
64.67
56.00
56.33
5
63.33
63.67
59.00
47.00
70.00
'65.00
; i
49.67
66.67
58.33
63.67
58.00
65.00
59.33
58.00
55.33
59.33
60.00
56.33
62.67
61.67
58.33
59.33
60.33
56.00
51.67
60.33
59.33
TAG SYMBOLS
Determined
to be an
outlier
0.35
0.93
-0.57
0.81
1.74
-1.26
-1.15
1.28
1.39
-0.23
-4.38
3.59
1.85
-3.46
2.43
-0.46
1.39
-0.57
1.85
-0.11
-0.57
-1.50
-0.11
0.12
-1.15
1.05
0.70
-0.46
-0.11
0.24
-1.26
-2.77
0.24
-0.11
IT s Above
U s Below
0.23
.-r- .-, ,'
0.81
-0.69
0.69
1.62
-1.39
-1.27
1.15
»
1.27
-0.35
-4.50 II
3.46 IT
1.73
-3.58 H
2.31
-0.58
1.27
-0.69
1.73
-0.23
-0.69
-1.62
-0.23
*
0.00
-1.27
0.92
0.58
-0.58
-0.23
0.12
-1.39
-2.89
0.12
-0.23
control limit
control limit
i -y
-------
CRD-LV Performance
Cobalt-60
Lab Res. 1
RU
RV
RX
RZ
S
sc
SD
SF
SI
SM
SN
SR
ss
ST
sv
sx
sz
T
TB
TC
TD
TH
TI
TL
TO
TQ
TR
TS
U
UE
UM
UN
UP
UR
UT
UW
UX
UY
VA
VcT
VE
VG
VH
VI
VM
=
0 s
57.0
55.0
61.0
60.0
59.0
54.0
55.0
60.0
61.0
59.0
56.0
60.0
62.0
63.0
62.0
60.0
56.0
50.0
61.0
59.0
60.0
54.0
58.0
68.0
62.0
-. . -. --X;-.-. v, s-. -.
62.0
60.0
84.0
56.0
61.0
55.0
58.0
53.0
," ::r -:'. . '
54.0
52.0
62.0
60.0
Res. 2
59.0
60.0
62.0
64.0
59.0
56.0
55.0
56.0
62.0
63.0
56.0
60.0
61.0
63.0
59.0
59.0
52.0
56.0
61.0
60.0
58.0
51.0
52.0
70.0
63.0
65.0
61.0
89>0:
56.0
60.0
53.0
64.0
55.0
58.0
52.0
59.0
67.0
Res. 3
61.0
60.0
59.0
63.0
59.0
53.0
53.0
57.0
60.0
64.0
52.0
59.0
61.0
66.0
62.0
60.0
58.0
53.0
59.0
60.0
59.0
54.0
57.0
64.0
s
64.0
63.0
59.0
8^0
56.0
62.0
54.0
61.0
52.0
55.0
53.0
61.0
65.0
No data submitted
Insufficient
data
x =
Evaluation
Exper.
Sigma
2.00
2.89
1.53
2.08
0.00
1.53
1.15
2.08
1.00
2.65
2.31
0.58
0.58
1.73
1.73
0.58
3.06
3.00
1.15
0.58
1.00
1.73
. ' " -. ' :
3.21
3.06
1.00
1.53
1.00
.:;.'' ;.'.&21;.'V-
0.00
1.00
1.00
3.00
1.53
... ,.-
2.08
0.58
1.53
3.61
: Gamma in Water, 3-Nov-1995
7/37 1
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.473
0.591
0.354
0.473
0.000
0.354
0.236
0.473
0.236
0.591
0.473
0.118
0.118
0.354
0.354
0.118
0.709
0.709
0.236
0.118
0.236
0.354
0.709
0.709
0.236
0.354
0.236
0.709
0.000
0.236
0.236
0.709
0.354
0.473
0.118
0.354
0.827
59.00
58.33
60.67
62.33
59.00
54.33
54.33
57.67
61.00
62.00
54.67
59.67
61.33
* x--
64.00
61.00
59.67
55.33
\
53.00
60.33
59.67
59.00
53.00
55.67
67.33
63.00
63.33
60.00
85.33
56.00
61.00
54.00
61.00
53.33
55.67
52.33
60.67
64.00
TAG SYMBOLS
Determined
to be an
outlier
-0.23
-0.46
0.35
0.93
' -0.23
-1.84
-1.84
-0.69
0.47
0.81
-1.73
0.01
0.58
\
1.51
0.47
0.01
-1.50
-2.30
0.24
0.01
-0.23
-2.30
-1.38
2.66
1.16
1.28
0.12
8.90
-1.26
0.47
-1.96
0.47
-2.19
-1.38
-2.53
0.35
1.51
1T s Above
U = Below
-0.35
-0.58
0.23
0.81
-0.35
-1.96
-1.96
-0.81
0.35
0.69
-1.85
-0.12
0.46
x ^ '"' v
1.39
0.35
-0.12
-1.62
-2.42
0.12
-0.12
-0.35
-2.42
' ': '
-1.50
2.54
- *
1.04
1.15
0.00
8.78 x s
-1.39
0.35
-2.08
0.35
-2.31
-1.50
*
-2.66
0.23
1.39
control limit
control limit
-------
8 / 37 CRD-LV Performance Evaluation
Cobalt-60
Lab Res. 1 Res. 2
VO 57.0 65.0
VB" - '' '' - '-
VS 65.0 61.0
VT
W 61.0 58.0
WD 60.0 59.0
WF 64.0 64.0
WI
WJ 627.0 617.0
WK 51.0 55.0
WL 440.0 440.0
WO 9LO 91,0
X 68.0 70.0
Exper.
Res. 3 Sigma
67.0 5.29
63.0 2.00
60.0 1.53
59.0 0.58
64.0 0.00
534.0 8.54
33.0 11.72
440.0 0.00
97.0 3.46
70.0 1.15
: Gamma
Rnganal
(R + SR)
1.345
0.473
0.354
0.118
0.000
2.921
4.046
0.000
0.709
0.236
in Water, 3-Nov-1995
Normalized deviation
Average (grand-avg) (known)
Tag
63.00 1.16 1.04
--1 - »
63.00 1.16 1.04
59.67 0.01 -0.12
59.33 -0.11 -0.23
64.00 1.51 1.39
526.00 161.55 161.43
46.33 -4.61 -4.73
440.00 131.76 131.64
93.00 11.65 11.43
69.33 3.35 3.23
»
1
X
II
X
X
f
Data sorted by Laboratory Average
Average Tag
46.33 U.
47.00 U
49.67 JJ
51.67
52.00
52.33
53.00
53.00
53.00
53.33
54.00
54.33
54.33
54.67
54.67
54.67
55.00
55.00
55.33
55.33
55.33
55.67
55.67
55.67
55.67
55.67
56.00
56.00
56.00
= No data submitted
0 = Insufficient data
V-
Lab
WK
OB
PB
RH
A
VH
TL
TC
AL
VA
UX
SD
SC
SN
FZ
DM
K
AH
T
Q
EB
VE
TQ
GI
CP
C
UT
RF
NH
Average Tag
56.00
56.33
56.33
57.00
57.00
57.00
57.33
57.67
57.67
57.67
57.67
57.67
57.67
57.67
58.00
58.00
58.00
58.00
58.00
58.00
58.33
58.33
58.33
58.33
58.33
58.67
58.67
58.67
58.67
TAG SYMBOLS
x = Determined
Lab
GQ
QT
NJ
HX
BC
AZ
LF
SF
M
KL
HP
DT
DE
BO
PW
PQ
MQ
CJ
AW
AU
RV
QX
PI
KX
E
LE
1C
GL
CC
Average Tag
58.67
59.00
59.00
59.00
59.00
59.00
59.00
59.00
59.33
59.33
59.33
59.33
59.33
59.67
59.67
59.67
59.67
59.67
59.67
59.67
59.67
59.67
59.67
59.67
59.67
59.67
60.00
60.00
60.00
ft = Above control
to be an outlier § = Below control
Lab
BN
TI
S
RU
OA
EZ
EL
DD
WD
RR
QZ
QJ
PV
W
TH
SZ
SR
JG
J
HK
GE
DZ
CM
AK
AJ
AF
UP
QP
CX
limit
limit
4
-------
CRD-LV Performance Evaluation: Gamma
Cobalt-60
in Water, 3-Nov-1995 8
... *
/37
Data sorted by Laboratory Average
Average Tag
60.00
60.33
. 60.33
60.33
60.33
60.33
60.33
60.33
60.33
60.67
60.67
60.67
60.67
60.67
61.00
61.00
61.00
61.00
61.00
61.00
61.00
61.00
61.33
61.33
% responding labs
Lab Average Tag
BL 61.33
TD 61.33
RO 61.67
R 62.00
LT 62.00
JE 62.00
I 62.00
EA 62.00
BM 62.00
VI 62.00
RX 62.33
MA 62.33
AP 62.67
AN 62.67
UY 62.67
UW 62.67
SX 63.00
SI 63.00
LR 63.00
HL 63.00
DH 63.00
BB 63.33
SS 63.33
HJ 63.33
Frequency distribution
Lab Average Tag
FJ 63.67
AE 63.67
QW 64.00
SM 64.00
MX 64.00
JS 64.00
DL 64.33
CQ 64.67
CA 65.00
BH 65.00
RZ 65.00
MP 65.33
QU 66.00
DO 66.67
DG 67.33
CK 68.00
VS 69.33 It
VO 69.33 ft
U 69.33 ft
CE 70.00 ft
BK 72.00 ft
UN 85.33 x
NO 93.00 x
FL 440.00 x
526.00 x
Lab
PM
O
WF
VM
sv
L
KH
N
PU
OM
AY
JY
BA
PE
TR
EX
X
m
BG
OL
cs
UR
WO
WL
WJ
1
° -6 ' -4
-_ -Illlllll-ll
' -2 0
- _
+2 ' +4
II
+6
Normalized deviation of the mean from the known value
% responding labs
1 0 ' "-
-6 -4
s No data submitted
0 s Insufficient data
Frequency distribution
I
_ _-- l-ll. Illlllllll-l. ._ _ 13
3 T I T
Normalized deviation of the mean from
TAG SYMBOLS
+2 ' +4
the grand average
ft = Above control
x = Determined to be an outlier Jl = Below control
+6
limit
limit J
-------
CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995
10/37
Zinc-65 Statistical Summary 193 Participants
The known value of this nuclide is 125.0 pCi/1 with an expected precision of 13.0; the control limits
are 102.4 to 147.6; the warning regions are 102.4 to 110.0 and 140.0 to 147.6
34(17.6 %) Failed to respond »%
8(4.1 %) Outliers
5(2.6 %) Out of control
but not an outlier
Statistic
. 136(70.5 %) Within all limits
Respondents
1O(5.2 %) 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
149.68 Grand Avg 128.89
144.90 8.98
20996.19 80.58
96.81 6.96
19.74 3.11
0.17 0.43
129.67 129.33
3.73 3.47
0.03 0.48
13(8.2 %) More than 3 norm. S.D. -,%
1O(6.3 %) Between 2 and 3 norm. S.D."
90(56.6 %) Within 1 norm. S.D.
of known value
46(28.9 %) Between 1 and 2 norm. S.D.
-------
11/37 CRD-LV Performance Evaluation: Gamma in Water,
3-Nov-1995
Zinc-65
Exper. Rng anal
Lnb
A
AE
AF
AH
AI
AJ
AK
AL
AN
AP
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BW
C
CA
CC
CE
CG
CJ
CK
CM
CO
CP
CQ
CS
CX
D
DD
DE
DG
DH
m,
=
0 =
v-
Res. 1
113.0
126.0
116.0
129.0
-
136.0
128.0
137.0
126.0
135.0
120.0
118.0
144.0
150.0
1330.0 -
135.0
131.0
136.0
139.0
146.0
128.0
132.0
125.0
128.0
106.0
127.0
130.0
131.0
,
111.0
130.0
128.0
141.0
137.0
159.0
132.0
135.0
121.0
122.0
119.0
148.0
Res. 2
110.0
128.0
127.0
135.0
129.0
128.0
129.0
127.0
135.0
130.0
124.0
145.0
137.0
1360.0
137.0
123.0
146.0
142.0
146.0
131.0
126.0
127.0
126.0
110.0
129.0
131.0
132.0
134.0
130.0
120.0
131.0
148.0
164.0
131.0
129.0
122.0
126.0
120.0
143.0
Res. 3
113.0
133.0
123.0
130.0
134.0
127.0
123.0
130.0
140.0
120.0
124.0
145.0
147.0
1270.0
136.0
127.0
119.0
141.0
148.0
128.0
124.0
129.0
134.0
114.0
126.0
131.0
125.0
149.0
120.0
136.0
126.0
137.0
165.0
131.0
131.0
122.0
109.0
123.0
139.0
No data submitted
Insufficient
data
x =
Sigma (R
1.73
3.61
5.57
3.21
3.61
0.58
7.02
2.08
2.89
5.77
3.46
0.58
6.81
45.83
1.00
4.00
13.65
1.53
,
1.15
1.73
4.16
2.00
4.16
4.00
1.53
0.58
3.79
19.14
5.77
8.00
7.64
6.35
3.21
0.58
3.06
0.58
8.89
2.08
4.51
+ SR)
0.136
0.318
0.500
0.273
0.318
0.045
0.636
0.182
0.227
0.454
0.273
0.045
0.591
6.884
0.091
0.363
1.432
0.136
0.091
0.136
0.363
0.182
0.363
.
0.363
0.136
0.045
0.318
2.384
0.454
0.727
0.682
0.500
0.273
0.045
0.273
0.045
0.772
0.182
0.409
Average
112.00
129.00
122.00
131.33
133.00
127.67
129.67
127.67
136.67
123.33
122.00
144.67
144.67
1320.00
136.00
127.00
133.67
140.67
146.67
129.00
127.33
127.00
129.33
110.00
127.33
130.67
129.33
131.33
126.67
128.00
132.67
140.67
162.67
131.33
131.67
121.67
119.00
120.67
143.33
TAG SYMBOLS
Determined to be an outlier
Normalized deviation
(grand-avg)
-2.25
0.01
-0.92
0.33
;,
0.55
-0.16
0.10
-0.16
1.04
-0.74
-0.92
2.10
2.10
158.70
0.95
-0.25
0.64
1.57
2.37
0.01
-0.21
-0.25
0.06
-2.52
-0.21
0.24
0.06
0.33
-0.30
-0.12
0.50
1.57
450
0.33
0.37
-0.96
-1.32
-1.10
1.92
(known) Tag
-1.73
0.53
-0.40
0.84
-
1.07
0.36
0.62
0.36
1.55
-0.22
-0.40
2.62
2.62
159.22 x
1.47
0.27
1.15
2.09
-»
2.89
0.53
0.31
0.27
0.58
-2.00
0.31
0.75
0.58
0.84
0.22
0.40
*
1.02
2.09
5.02 x
0.84
; ' »
0.89
-0.44
-0.80
-0.58
2.44
ft = Above control limit
11 = Below control limit
. '
-------
CRD-LV Performance
Evaluation: Gamma in Water,
3-Nov-1995
12/37
Zinc-65
Lab
DM
DO
DR
DT
DZ
E
EA
EB
EL
'EM
EX
EZ
FJ
.."FK
FL
FU
FZ
GE
GI
GL
GQ
HI
HJ
HK
HL
HP
HX
I
1C
J
JE
JG
JI
JS
JY
K
KH
KL
KX
L
"LE:;
LF
LR
LT
M
Res. 1
117.0
129.0
-
118.0
115.0
135.0
125.0
131.0
128.0
111.0
125.0
139.0
140.0
-
120.0
122.0
118.0
124.0
118.0
145.0
124.0
133.0
137.0
125.0
128.0
124.0
135.0
132.0
134.0
110.0
133.0
119.0
117.0
157.0
121.0
121.0
139.0
-T;7 455.0 :
130.0
174.0
135.0
138.0
Res. 2
122.0
134.0
148.0
116.0
121.0
126.0
132.0
126.0
98.0
121.0
140.0
-
131.0
120.0
134.0
131.0
128.0
117.0
152.0
129.0
126.0
137.0
130.0
130.0
137.0
129.0
132.0
131.0
110.0
130.0
147.0
117.0
145.0
131.0
129.0
142.0
v 470.0
130.0
175.0
127.0
135.0
Res. 3
122.0
132.0
^ - V - \ -
131.0
109.0
135.0
126.0
130.0
127.0
89.0
123.0
137.0
127.0
120.0
134.0
133.0
124.0
119.0
158.0
131.0
131.0
137.0
133.0
127.0
126.0
138.0
131.0
130.0
111.0
140.0
129.0
120.0
152.0
122.0
123.0
141.0
443.0
140.0
164.0
140.0
126.0
= No data submitted
0 s
Insufficient
data
x =
Exper.
Sigma
2.89
2.52
15.04
3.79
8.08
0.58
1.00
1.00
11.06
2.00
1.53
6.66
0.00
6.93
8.14
2.31
1.00
6.51
3.61
3.61
0.00
4.04
1.53
7.00
4.58
0.58
2.08
0.58
5.13
14.19
1.73
6.03
5.51
4.16
1.53
13.63
5.77
6.08
6.56
6.24
Rng anal
(R + SR)
0.227
0.227
1.692
0.318
0.636
0.045
0.091
0.091
1.000
0.182
0.136
0.591
0.000
0.545
0.682
0.182
0.091
0.591
0.318
0.318
0.000
0.363
0.136
0.591
0.409
0.045
0.182
0.045
0.454
1.518
0.136
0.545
0.454
0.363
0.136
1.432
0.454
0.500
0.591
0.545
Normalized deviation
Average
120.33
131.67
' '- - -'
132.33
113.33
130.33
125.67
131.00
127.00
99.33
123.00
138.67
-
132.67
-
120.00
130.00
127.33
125.33
118.00
151.67
128.00
130.00
137.00
129.33
128.33
129.00
134.00
131.67
131.67
110.33
134.33
131.67
118.00
151.33
124.67
124.33
140.67
456.00
133.33
171.00
134.00
133.00
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
-1.14
0.37
r-v'\w- ,'
0.46
-2.07
0.19
-0.43
0.28
-0.25
-3.94
-0.78
1.30
0.50
-1.18
0.15
-0.21
-0.47
-1.45
3.03
-0.12
0.15
1.08
0.06
-0.07
0.01
0.68
0.37
0.37
-2.47
,
0.73
0.37
-1.45
2.99
-0.56
-0.61
1.57
43.68
0.59
5.61
0.68
0.55
ft = Above
11 = Below
-0.62
0.89
~ * vr ' .X
0.98
-1.55
0.71
0.09
0.80
0.27
tr
-3.42 Ji
-0.27
1.82
>"
1.02
-0.67
0.67
0.31
0.04
-0.93
3.55 ft
0.40
0.67
1.60
0.58
0.44
0.53
1.20
0.89
0.89
-1.95
1.24
0.89
-0.93
3.51 ft
-0.04
-0.09
2.09
44.10 x
1.11
6.13 x
1.20
1.07
control limit
control limit
-------
sf
13/37 CRD-LV Performance Evaluation: Gamma in Water,
3-Nov-1995
}
Zinc-65
Exper. Rng anal
Lab
MA
ML
MP
MQ
MV
MX
MY
N
NH
NJ
NK
NO
NP
NZ
O
OA
OB
OK
OL
OM
OZ
P
PB
PE
PI
PM
PQ
PU
PV
PW
Q
QJ
QM
QP
QT
QU
QW
QX
QZ
R
RF
RH
RL
RO
RR
=
0 =
^
Res. 1
131.0
152.0
119.0
140.0
'{"^
121.0
133.0
124.0
131.0
140.0
129.0
162.0
118.0
99.0
132.0
122.0
131.0
134.0
125.0
129.0
126.0
124.0
130.0
149.0
122.0
130.0
126.0
116.0
131.0
135.0
126.0
115.0
135.0
129.0
Res. 2
140.0
" * f
153.0
130.0
139.0
124.0
133.0
124.0
135.0
%..",_.. ..
140.0
129.0
163.0
119.0
102.0
125.0
122.0
129.0
136.0
128.0
139.0
130.0
128.0
130.0
' '<;
110.0
128.0
132.0
131.0
110.0 .
131.0
130.0
131.0
120.0
137.0
138.0
Res. 3
132.0
154.0
130.0
136.0
132.0
132.0
120.0
136.0
139.0
129.0
146.0
117.0
107.0
131.0
126.0
126.0
124.0
132.0
144.0
134.0
132.0
140.0
103.0
118.0
132.0
135.0
124.0
134.0
139.0
122.0
114.0
143.0
132.0
No data submitted
Insufficient
data
x =
Sigma (R
4.93
,,, , .- * ,,,
1.00
6.35
2.08
5.69
0.58
2.31
2.65
0.58
0.00
9.54
1.00
4.04
3.79
2.31
2.52
6.43
3.51
7.64
4.00
4.00
5.77
24.79
5.03
1.15
4.51
7.02
1.73
4.51
4.51
3.21
4.16
4.58
+ SR)
0.409
0.091
0.500
0.182
0.500
0.045
0.182
0.227
-
0.045
0.000
, .
0.772
0.091
0.363
0.318
0.182
0.227
0.545
0.318
0.682
0.363
0.363
0.454
3.076
0.454
0.091
0.409
0.636
0.136
0.409
0.409
0.273
0.363
0.409
Average
134.33
: .. , ,.'-
153.00
126.33
!'! ,
138.33
125.67
132.67
122.67
134.00
-
~,
139.67
129.00
157.00
118.00
102.67
129.33
123.33
128.67
131.33
128.33
137.33
130.00
128.00
133.33
120.67
122.67
131.33
130.67
116.67
132.00
134.67
126.33
116.33
138.33
133.00
TAG SYMBOLS
Determined to be an outlier
Normalized deviation
(grand-avg) (known) Tag
0.73
.X -''_. ' ^ " ^
3.21
-0.34
s , _. -- "
1.26
\ * \ ' .
-0.43
0.50
-0.83
0.68
-. ' *" % > '
1.44
0.01
3.75
-1.45
' -
1 , ' , ~
-3.49
0.06
-0.74
-0.03
0.33
-0.07
1.12
0.15
-0.12
0.59
-1.10
-0.83
0.33
0.24
-1.63
0.41
0.77
-0.34
-1.67
1.26
0.55
1T = Above
U & Below
1.24
r. ' ,\ - ". '»;-* i
3.73 11
0.18
" ' " ~- "- , ,
1.78
» ".
0.09
1.02
-0.31
-
1.20
' *' .'
-
1.95
0.53
;
* '
4.26 ft
-0.93
'
,
-2.98
0.58
-0.22
0.49
0.84
0.44
1.64
0.67
0.40
1.11
» ,
-0.58
-0.31
0.84
0.75
-1.11
0.93
1.29
0.18
-1.15
1.78
1.07
control limit
control limit
. ^
-------
CRD-LV Performance
Evaluation
: Gamma in Water,
3-Nov-1995
14/37
Zinc-65
Lab
RU
RV
RX
RZ
S
SC
SD
SF
SI
SM
SN
SR
ss
ST
sv
sx
sz
T
TC
TD
TH
TI
TL
TO
TQ
TR
TS
U
'UE
UM
UN
UP
UR
UT
UW
UX
UY
VA
VC
VE
VG
VH
VI
VM
Res. 1
130.0
125.0
130.0
123.0
127.0
132.0
125.0
128.0
138.0
129.0
129.0
133.0
135.0
V
148.0
136.0
134.0
123.0
99.0
129.0
127.0
137.0
95.0
-.
124.0
126.0
"""
130.0
129.0
135.0
35;0
35.0
131.0
124.0
132.0
129.0
-,
139.0
-'-
136.0
139.0
115.0
Res. 2
130.0
125.0
112.0
123.0
127.0
127.0
132.0
145.0
136.0
137.0
130.0
131.0
129.0
124.0
134.0
125.0
122.0
108.0
141.0
128.0
134.0
121.0
132.0
126.0
130.0
137.0
133.0
34.0
35.0
116.0
119.0
127.0
117.0
131.0
^
133.0
133.0
115.0
Res. 3
129.0
116.0
121.0
128.0
, 128.0
127.0
112.0
134.0
143.0
132.0
130.0
129.0
134.0
135.0
135.0
124.0
124.0
104.0
140.0
128.0
135.0
120.0
122.0
120.0
133.0
-
137.0
137.0
38;0
35.0
121.0
114.0
136.0
132.0
136.0
133.0
143.0
125.0
= No data submitted
0 =
Insufficient
data
XH
Exper.
Sigma
0.58
5.20
9.00
2.89
0.58
2.89
10.15
8.62
3.61
4.04
0.58
2.00
3.21
12.01
1.00
5.51
1.00
4.51
6.66
0.58
1.53
14.73
5.29
3.46
1.73
4.62
2.00
2.08
0.00
7.64
5.00
4.51
7.94
4.04
1.73
5.03
5.77
Rng anal
(R + SR)
0.045
0.409
0.818
0.227
0.045
0.227
0.909
0.772
0.318
0.363
0.045
0.182
0.273
1.172
0.091
0.454
0.091
0.409
0.545
0.045
0.136
1.345
0.454
0.273
0.136
0.363
0.182
0.182
0.000
0.682
0.454
0.409
0.682
0.363
0.136
0.454
0.454
Normalized deviation
Average
129.67
122.00
121.00
124.67
127.33
128.67
123.00
135.67
139.00
132.67
129.67
131.00
132.67
135.67
135.00
127.67
123.00
103.67
136.67
127.67
135.33
112.00
126.00
124.00
131.00
134.33
135.00
35.67
35.00
122.67
119.00
131.67
126.00
135.33
134.00
138.33
118.33
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
0.10
-0.92
-1.05
-0.56
-0.21
-0.03
-0.78
0.90
1.35
0.50
0.10
0.28
0.50
0.90
0.81
-0.16
-0.78
-3.36
1.04
-0.16
0.86
-2.25
-0.38
-0.65
0.28
0.73
0.81
-12.42
-12.51
-0.83
-1.32
0.37
-0.38
0.86
....
0.68
1.26
-1.41
ft = Above
II = Below
0.62
-0.40
-0.53
-0.04
0.31
0.49
-0.27
1.42
1.87
1.02
0.62
0.80
1.02
.'.'....:.; :,:i.<: V ...
1.42
1.33
0.36
-0.27
-2.84
1.55
0.36
1.38
-1.73
0.13
-0.13
0.80
1.24
1.33
-1190 x
1L99 x
-0.31
-0.80
0.89
0.13
'tH/i;'' ; .:..
1.38
' -v " v
1.20
1.78
-0.89
control limit
control limit J
-------
ff
15/37
Zinc-65
Lab Res. 1
VO 132.0
VR '' ;~
VS 124.0
VT
W 131.0
WD 140.0
WF 125.0
WI
WJ 1189.0
WK 104.0
WL 928.0
WO 104.0
X 120.0
CKD-LV Performance Evaluation
Res. 2
128.0
129.0
132.0
133.0
125.0
1190.0
126.0
1060.0
112.0
117.0
Exper.
Res. 3 Sigma
142.0 7.21
133.0 4.51
'
127.0, 2.65
128.0 6.03
125.0 0.00
: 1195.0 3.21
112.0 11.14
967.0 36.04
104.0 4.62
118.0 1.53
: Gamma
Rng anal
(R + SR)
0.636
0.409
0.227
0.545
0.000
0.273
1.000
5.326
0.363
0.136
in Water, 3-Nov-1995
Normalized deviation
Average (grand-avg) (known)
134.00 0.68 1.20
128.67 -0.03 0.49
",,_ v "
130.00 0.15 0.67
133.67 0.64 1.15
125.00 -0.52 0.00
1191.33 141.55 142.07
114.00 -1.98 -1.47
965,00 111.40 111.92
106.67 -2.96 -2.44
118.33 -1.41 -0.89
)
Tag
*
x.
X
Data sorted by Laboratory Average
Average
35.00
35.67
99.33
102.67
103.67
106.67
110.00
110.33
112.00
112.00
113.33
114.00
116.33
116.67
118.00
118.00
118.00
118.33
118.33
119.00
119.00
120.00
120.33
120.67
120.67
121.00
121.67
122.00
122.00
Tag
X
X
11
s No data submitted
0 = Insufficient data
v-
Lab
UT
UR
EX
PB
TC
WO
C
JG
TL
A
DZ
WK
RH
QX
OM
K
GQ
X
VM
UX
DG
FZ
DM
QP
DH
RX
DE
RV
AW
Average Tag
122.00
122.67
122.67
122.67
123.00
123.00
123.00
123.33
123.33
124.00
124.33
124.67
124.67
125.00
125.33
125.67
125.67
126.00
126.00
126.33
126.33
126.67
127.00
127.00
127.00
127.33
127.33
127.33
127.33
TAG SYMBOLS
x = Determined
Lab
AF
UW
QT
NJ
T
SD
EZ
PI
AU
TR
KX
RZ
KL
WF
GL
N
EA
VA
TQ
RF
MQ
CK
EL
BN
BC
S
GI
CA
BM
Average Tag
127.67
127.67
127.67
127.67
128.00
128.00
128.00
128.33
128.33
128.67
128.67
128.67
129.00
129.00
129.00
129.00
129.33
129.33
129.33
129.33
129.67
129.67
129.67
130.00
130.00
130.00
130.00
130.33
130.67
ft s Above control
to be an outlier U & Below control
Lab
TH
SZ
AN
AK
Q
HJ
CM
PU
HX
VS
sc
PM
OA
I
BL
AE
PE
HP
CE
BO
SN
RU
AL
W
PW
HK
GE
E
QW
limit
limit
y
-------
CRD-LV
Zinc-65
Average Tag
130.67
131.00
131.00
131.00
131.33
131.33
131.33
131.33
131.33
131.67
131.67
131.67
131.67
131.67
131.67
132.00
132.33
132.67
132.67
132.67
132.67
132.67
133.00
133.00
% responding labs
in. _ -
IU' ----------
-6 -4
% responding labs
10' -----------
0. Si
-6 -4
= No data submitted
0 = Insufficient data
Performance Evaluation: Gamma in Water, 3-Nov-1995
Data sorted by Laboratory Average
Lab Average Tag Lab Average
CC 133.00 AJ 137.33
U 133.33 QJ 138.33
SR 133.33 LF 138.33
EB 133.67 WD 138.33
QU 133.67 BG 138.67
PQ 134.00 VO 139.00
CX 134.00 VH 139.67
CJ 134.00 NO 140.67
AH 134.00 LT 140.67
UY 134.00 1C 140.67
JY 134.33 UN 143.33
JE 134.33 MA 144.67
J 134.33 JS 144.67
DO 134.67 R 146.67
DD 135.00 UP 151.33
QZ 135.00 SX 151.67
DT 135.33 VE 153.00
SS 135.33 . TI 157.00
SM 135.67 SV 162.67
NH 135.67 SF 171.00
FL 136.00 BB 456.00
CP 136.67 TD 965.00
RR 136.67 AP 1191.33
M 137.00 HL 1320.00
Frequency distribution
Illii
_ T_ _ T ..iiiillllli.i. .
-2 0 +2
Normalized deviation of the mean from the known value
Frequency distribution
. Jllll.
- T . -l.lhllllllll... T-_ ._
Tag
ft
tr
tr
ft
X
X
X
X
X
X
+4
-2 0 +2 +4
Normalized deviation of the mean from the grand average
TAG SYMBOLS ft
x = Determined to he an outlier U
s Above
s Below
16/37
Lab
PV
VI
RO
MX
FJ
SI
O
L
CQ
BH
DL
AZ
AY
BK
KH
m
MP
OL
CS
LR
LE
WL
WJ
BA
i
T V*
R
+6
control limit
control limit
-------
\
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
NATIONAL EXPOSURE RESEARCH LABORATORY
P O. BOX 93478 LAS VEGAS, NV 891 93-3478
OFFICE OF
RESEARCH AND DEVELOPMENT
A note regarding the Cesium-134 portion of the November 3, 1995
Gamma in Water Performance Evaluation Study:
The difference between the grand average and the known value was
significant for this study. The primary peak for Cs-134 (604.7) is subject
to coincidence summing, resulting in a negative bias if quantified using
commercial mixed standards. Efficiency factors based on these standards do
not correctly quantify peaks subject to summing, and in general produce a
negative bias as was observed. This bias will be minimized if the efficiency
is calculated using a separate Cs-134 standard or a previous PE study.
Please direct any questions to Steve Pia at 702 798-2102.
Recycled/Recyclable Printed with Vegetable Oil Based InKs on 100% Recycled Paper (40% Postconsumer)
-------
CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995
17/37
Cesium-134 Statistical Summary 193 Participants
The known value of this nuclide is 40.0 pCi/I with an expected precision of 5.0; the control limits
are 31.3 to 48.7; the warning regions are 31.3 to 34.2 and 45.8 to 48.7
34(17.6 %) Failed to respond
5(2.6 %) Outliers '
3(1.6 %) Out of control '"
but not an outlier
Statistic
; 125(64.8 %) Within all limits
Respondents
26(13.5 %) 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
40.64
28.74
826.15
70.73
1.59
0.02
37.00
-7.50
-0.10
Grand Avg 36.85
3.03
9.19
8.23
-7.86
-1.04
36.67
-8.33
-1.10
11(6.9 %) More than 3 norm. S.D. ».
23(14.5 %) Between 2 and 3 norm. S.D.
61(38.4 %) Within 1 norm. S.D.
of Known value
* 64(40.3 %) Between 1 and 2 norm. S.D.
-------
1 8 / 37 CKD-LV Performance
Evaluation: Gamma in Water,
3-Nov-1995
Cesium-134
Exper. Rng anal
Lab
A
AE
AF
AH
AI
AJ
AK
AL
AN
AP
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BW
C
CA
CC
CE
CG
CJ
CK
CM
CO
CP
CQ
cs
ex
D
DD
DE
DG
DH
DL
Res. 1
31.0
35.0
34.0
36.0
33.0
36.0
41.0
32.0
39.0
39.0
34.0
37.0
50.0
38.0
40.0
35.0
40.0
33.0
43.0
36.0
38.0
34.0
36.0
36.0
37.0
34.0
38.0
34.0
33.0
34.0
38.0
35.0
42.0
38.0
37.0
35.0
34.0
40.0
35.0
Res. 2
32.0
38.0
33.0
35.0
33.0
36.0
40.0
36.0
38.0
35.0
34.0
36.0
40.0
41.0
38.0
33.0
25.0
37.0
"'
44.0
39.0
37.0
36.0
37.0
37.0
38.0
35.0
37.0
38.0
33.0
35.0
33.0
39.0
43.0
37.0
38.0 ,
36.0
36.0
40.0
38.0
Res. 3
30.0
38.0
32.0
35.0
35.0
36.0
49.0
34.0
37.0
38.0
30.0
36.0
47.0
41.0
39.0
34.0
24.0
35.0
44.0
37.0
36.0
35.0
35.0
36.0
38.0
36.0
39.0
37.0
33.0
33.0
35.0
42.0
42.0
40.0
37.0
36.0
33.0
39.0
37.0
s No data submitted
0 =
V
Insufficient
data
x =
Sigma (R
1.00
1.73
1.00
0.58
1.15
0.00
4.93
2.00
1.00
2.08
2.31
0.58
5.13
1.73
1.00
1.00
8.96
2.00
0.58
1.53
1.00
1.00
1.00
0.58
0.58
1.00
1.00
2.08
0.00
1.00
2.52
3.51
0.58
1.53
0.58
0.58
1.53
0.58
1.53
+ SR)
0.236
0.354
0.236
0.118
0.236
0.000
1.120
0.473
0.236
0.473
0.473
0.118
1.345
0.354
0.236
0.236
2.695
0.473
0.118
0.354
0.236
0.236
0.236
0.118
0.118
0.236
0.236
0.473
0.000
0.236
0.591
0.827
0.118
0.354
0.118
0.118
0.354
0.118
0.354
Average
31.00
37.00
33.00
35.33
33.67
36.00
43.33
34.00
38.00
37.33
32.67
36.33
45.67
40.00
39.00
34.00
29.67
35.00
43.67
37.33
37.00
35.00
36.00
36.33
37.67
35.00
38.00
36.33
33.00
34.00
35.33
38.67
42.33
38.33
37.33
35.67
34.33
39.67
36.67
TAG SYMBOLS
Determined to be an outlier
Normalized deviation
(grand-avg) (known)
-2.03
0.05
-1.34
-0.53
-1.10
-0.30
2.24
-0.99
0.40
0.17
-1.45
-0.18
3.05
1.09
0.74
-0.99
-2.49
-0.64
2.36
0.17
0.05
-0.64
-0.30
-0.18
0.28
-0.64
0.40
-0.18
-1.34
-0.99
-0.53
0.63
1.90
0.51
0.17
-0.41
-0.87
0.97
-0.07
IT = Above
11 s Below
-3.12
-1.04
-2.42
-1.62
-2.19
-1.39
1.15
-2.08
-0.69
-0.92
-2.54
-1.27
1.96
0.00
-0.35
-2.08
-3.58
-1.73
1.27
-0.92
-1.04
-1.73
-1.39
-1.27
-0.81
-1.73
-0.69
, ,
-1.27
-2.42
-2.08
-1:62
-0.46
0.81
-0.58
-0.92
-1.50
-1.96
-0.12
-1.15
control
control
Tag
11
*
11
' "
*
limit
limit
-------
CRD-LV Performance
Evaluation
: Gamma in Water,
3-Nov-1995
19 / 37 ]
Cesium- 134
Lab
DM
DO
DR
DT
DZ
E
EA
EB
EL
EWx
EX.
EZ
FJ
'FK'
FL
FU
FZ
GE
GI
GL
GQ
m
HJ
HK
HL
HP
HK
I
1C
J
JE
JG
JI
JS
JY
K
KH
KL
KK
L
LE
LF
LR
LT
M
=
0 3
v-
Res. 1
36.0
35.0
33.0
44.0
39.0
40.0
33.0
37.0
,
34.0
40.0
36.0
40.0
36.0
36.0
31.0
31.0
38.0
44.0
41.0
37.0
39.0
41.0
36.0
35.0
39.0
38.0
36.0
33.0
.
38.0
47.0
40.0
41.0
36.0
37.0
39.0
40.0
37.0
72.0
36.0
37.0
Res. 2
35.0
36.0
40.0
45.0
37.0
40.0
32.0
36.0
X\V\,* ''
44.0
37.0
38.0
41.0
35.0
36.0
34.0
31.0
38.0
44.0
33.0
37.0
39.0
38.0
34.0
37.0
37.0
37.0
36.0
30.0
<
38.0
42.0
42.0
42.0
36.0
40.0
40.0
38.0
37.0
740
38.0
37.0
Res. 3
35.0
38.0
37.0
42.0
40.0
40.0
32.0
36.0
*, i ~ , \ "
42.0
37.0
39.0
40.0
36.0
35.0
35.0
34.0
37.0
42.0
36.0
37.0
39.0
37.0
34.0
37.0
42.0
37.0
35.0
31.0
38.0
39.0
44.0
40.0
38.0
38.0
40.0
35.0
33.0
61.0
38.0
36.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.58
1.53
3.51
1.53
1.53
0.00
0.58
0.58
5.29
1.73
1.53
0.58
0.58
0.58
2.08
1.73
0.58
1.15
4.04
0.00
0.00
2.08
1.15
1.15
2.52
0.58
0.58
1.53
0.00
4.04
2.00
1.00
1.15
1.53
0.58
2.52
2.31
7.00
1.15
0.58
Rng anal
(R + SR)
0.118
0.354
0.827
0.354
0.354
0.000
0.118
0.118
'- "\'^;>
1.345
0.354
0.354
0.118
0.118
0.118
0.473
0.354
0.118
0.236
0.945
0.000
0.000
0.473
0.236
0.236
0.591
0.118
0.118
0.354
0.000
0.945
0.473
0.236
0.236
0.354
0.118
0.591
0.473
2.020
0.236
0.118
Normalized deviation
Average
35.33
36.33
36.67
43.67
38.67
40.00
32.33
36.33
v \ " 'Y'V
40.00
38.00
37.67
40.33
35.67
35.67
33.33
32.00
37.67
43.33
36.67
37.00
39.00
38.67
34.67
36.33
39.33
37.33
35.67
31.33
38.00
42.67
42.00
41.00
36.67
38.33
39.67
37.67
35.67
69.00
37.33
36.67
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
-0.53
-0.18
-0.07
2.36
0.63
1.09
-1.57.
-0.18
;\ ,"f, ;C" "" ^ " -°."
1.09
0.40
0.28
N
1.20
-0.41
-0.41
-1.22
-1.68
0.28
2.24
-0.07
0.05
0.74
0.63
-0.76
-0.18
0.86
0.17
-0.41
-1.91
0.40
2.01
1.78
1.44
-0.07
0.51
0.97
0.28
-0.41
11.14
0.17
-0.07
IT = Above
li = Below
-1.62
-1.27
,^ ^ -':'
-1.15
1.27
-0.46
0.00
-2.66
-1.27
Xpc^y
0.00
-0.69
-0.81
\
0.12
*
-1.50
-1.50
-2.31
-2.77
-0.81
1.15
-1.15
-1.04
-0.35
-0.46
-1.85
-1.27
-0.23
-0.92
-1.50
-3.00
.,,,<,;; V ./:. ,
-0.69
0.92
0.69
0.35
-1.15
-0.58
-0.12
-0.81
-1.50
10.06 x
-0.92
-1.15
control limit
control limit
-------
/f . 'T- ..- . . - .. .
20 / 37 CRD-LV Performance
Evaluation: Gamma
in Water,
3-Nov-1995
^v
Cesium-134
Exper. Rng anal
Lab
MA
ML
MP
MQ
MV
MX
MY
N
NH
NJ
NK'
NO
NP
NZ
O
OA
OB
OK
OL
OM
OZ
P
PB
PE
PI
PM
PQ
PU
PV
PW
Q
QJ
QM
QP
QT
QU
QW
QX
QZ
R
RF
RH
RL
RO
RR
=
Res. 1
38.0
' J * ? ^
47.0
30.0
39.0
36.0
35.0
32.0
39.0
39.0
36.0
51.0
41.0
39.0
39.0
34.0
36.0
33.0
32.0
34.0
37.0
37.0
34.0
48.0
35.0
40.0
41.0
37.0
36.0
37.0
40.0
33.0
36.0
37.0
Res. 2
36.0
43.0
36.0
41.0
39.0
35.0
35.0
40.0
39.0
35.0
31.0
36.0
- ' " ~
40.0
39.0
35.0
34.0
34.0
33.0
33.0
36.0
37.0
36.0
46.0
35.0
41.0
38.0
39.0
33.0
38.0
38.0
37.0
36.0
36.0
Res. 3
36.0
. 46.0
36.0
41.0
37.0
34.0
33.0
40.0
<
40.0
36.0
40.0
35.0
42.0
34.0
36.0
37.0
32.0
34.0
34.0
38.0
38.0
35.0
30.0
35.0
42.0
38.0 -
39.0
36.0
37.0
40.0
37.0
36.0
38.0
No data submitted
Insufficient
data
x =
Sigma (R
1.15
2.08
3.46
1.15
1.53
0.58
1.53
0.58
!
0.58
0.58
10.02
3.21
1.53
2.89
1.00
1.53
1.00
1.00
0.58
1.00
0.58
1.00
9.87
0.00
1.00
1.73
1.15
1.73
0.58
1.15
2.31
0.00
1.00
+ SR)
0.236
0.473
0.709
0.236
0.354
0.118
0.354
0.118
0.118
0.118
3.596
0.709
0.354
0.591
0.236
0.354
0.236
0.236
0.118
0.236
0.118
0.236
3.146
0.000
0.236
0.354
0.236
0.354
0.118
0.236
0.473
0.000
0.236
Average
36.67
45.33
34.00
40.33
5 .
37.33
34.67
33.33
39.67
39.33
35.67
40.67
37.33
40.33
37.33
35.00
35.67
33.00
33.00
33.67
37.00
37.33
35.00
41.33
35.00
41.00
39.00
38.33
35.00
37.33
39.33
35.67
36.00
37.00
TAG SYMBOLS
Determined to be an outlier
Normalized deviation
(grand-avg) (known) Tag
-0.07
> S1" * t
2^94
-0.99
1.20
0.17
-0.76
-1.22
0.97
0.86
-0.41
1.32
0.17
1.20
0.17
-0.64
-0.41
-1.34
-1.34
-1.10
0.05
0.17
-0.64
1.55
-0.64
1.44
0.74
0.51
-0.64
0.17
0.86
-0.41
-0.30
0.05
It = Above
U s Below
-1.15
,»-,-'
1.85
-2.08
, ^ %
0.12
' *
-0.92
-1.85
-2.31
*
-0.12
,, - - «: -;
*
-0.23
-1.50
':.
*
0.23
-0.92
-
0.12
-0.92
-1.73
-1.50
-2.42
-2.42
-2.19
-1.04
-0.92
-1.73
*
0.46
-1.73
0.35
-0.35
-0.58
-1.73
-0.92
-0.23
-1.50
'
-1.39
-1.04
control limit
control limit
-------
CRD-LV Performance
Evaluation
: Gamma in Water,
3-Nov-1995
21/37
Cesium- 134
Lab
RU
RV
RX
RZ
S
sc
SD
SF
SI
SM
SN
SR
ss
sf .,
sv
sx
sz
T
TB
TC
ID
TH
TI
TL
TX)
TQ
TR
TS
U
UE
UM
UN
UP
UK
UT
UW
UX
UY
VA
VG
VE
VG
VH
VI
VM
Res. 1
35.0
37.0
40.0
38.0
38.0
35.0
35.0
34.0
37.0
37.0
36.0
38.0
40.0
36.0
37.0
34.0
35.0
,'S -
26.0
36.0
40.0
39.0
36.0
34.0
33.0
41.0
36.0
36.0
63.0 :
41.0
41.0
30.0
34.0
36.0
35.0
35.0
32.0
44.0
Res. 2
36.0
40.0
39.0
38.0
39.0
31.0
35.0
36.0
39.0
38.0
38.0
36.0
39.0
35.0
34.0
36.0
37.0
31.0
36.0
39.0
37.0
34.0
31.0
33.0
»
40.0
37.0
36.0
.' ,'61&S'.:"
41.0
42.0
32.0
36.0
33.0
* "'.':'>-
34.0
34.0
30.0
48.0
Res. 3
34.0
38.0
41.0
38.0
> 39.0
31.0
33.0
39.0
39.0
37.0
37.0
37.0
39.0
31.0
33.0
36.0
39.0
29.0
35.0
38.0
38.0
39.0
33.0
33.0
42.0
39.0
35.0
/S/eisCK--
41.0
40.0
32.0
36.0
32.0
36.0
'
33.0
32.0
40.0
s No data submitted
, 0 g
Insufficient
data
x =
Exper.
Sigma
1.00
1.53
1.00
0.00
0.58
2.31
1.15
2.52
1.15
0.58
1.00
1.00
0.58
2.65
2.08
1.15
2.00
2.52
0.58
1.00
1.00
2.52
: .:' >"';.:',"'' ''v
1.53
0.00
."::.: .' " ;
1.00
1.53
0.58
:-:^l;15ii:;-
0.00
1.00
1.15
1.15
2.08
1.00
1.00
1.15
4.00
Rng anal
(R + SR)
0.236
0.354
0.236
0.000
0.118
0.473
0.236
0.591
0.236
0.118
0.236
0.236
0.118
0.591
0.473
0.236
0.473
0.591
0.118
0.236
0.236
0.591
0.354
0.000
0.236
0.354
0.118
0,236
0.000
0.236
0.236
0.236
0.473
0.236
0.236
0.236
0.945
Average
35.00
38.33
40.00
38.00
38.67
32.33
34.33
36.33
38.33
37.33
37.00
37.00
39.33
34.00
34.67
35.33
37.00
28.67
35.67
39.00
38.00
36.33
32.67
33.00
41.00
37.33
35.67
61.67
41.00
41.00
31.33
35.33
33.67
35.00
34.00
31.33
44.00
TAG SYMBOLS
Determined
to be an outlier
Normalized deviation
(grand-avg) (known) Tog
-0.64
0.51
1.09
0.40
0.63
-1.57
-0.87
-0.18
0.51
0.17
0.05
0.05
0.86
-0.99
-0.76
-0.53
0.05
-2.84
-0.41
0.74
0.40
-0.18
-1.45
-1.34
1.44
.;'. , ''
0.17
-0.41
8.60
1.44
1.44
-1.91
-0.53
-1.10
-0.64
-0.99
-1.91
2.48
1T = Above
11 = Below
-1.73
-0.58
0.00
-0.69
-0.46
-2.66
-1.96
-1.27
-0.58
-0.92
-1.04
-1.04
-0.23
: ' '
-2.08
-1.85
-1.62
-1.04
*
-3.93 U
-1.50
-0.35
-0.69
-1.27
-2.54
-2.42
\ r;;:,r., »
0.35
*
-0.92
-1.50
7.51 x
0.35
0.35
-3.00
-1.62
-2.19
-1.73
*
-2.08
-3.00
1.39
control limit
control limit
^**
-------
22/37 CRD-LV Performance Evaluation: Gamma
Cesium-134
Lab Res. 1 Res. 2
VO 41.0 39.0
VE -": / ~ \^': \ ."
VS 35.0 38.0
VT
W 36.0 34.0
WD 38.0 38.0
WF 34.0 34.0
WI "'"' ";/
WJ 326.0 326.0
WK 28.0 40.0
WL 274.0 220,0
WO 81& 81.0
X 34.0 35.0
Exper. Rng anal
Res. 3 Sigma (R + SR)
32.0 4.73 1.120
v '
37.0 1.53 0.354
35.0, 1.00 0.236
36.0 1.15 0.236
34.0 0.00 0.000
32
3
'. '
6.0 0.58 0.118
2.0 6.11 1.795
248.0 27.01 11.246
: 84.0 1.73 0.354
36.0 1.00 0.236
in Water, 3-Nov-1995
Normalized deviation
Average (grand-avg) (known)
37.33 0.17 -0.92
'j ^ " \ - " ''
36.67 -0.07 -1.15
, , ',,.. ...... ,. , ,,.,
35.00 -0.64 -1.73
37.33 0.17 -0.92
34.00 -0.99 -2.08
325.67 100.05 98.96
33.33 -1.22 -2.31
247.33 72.91 71,82
82.00 15.64 14.55
35.00 -0.64 -1.73
)
Tag
' , * '*'
.,
X'"
X
X
Data sorted by Laboratory Average
Average Tag
28.67 Ji
29.67 U
31.00 li
31.33
31.33
31.33
32.00
32.33
32.33
32.67
32.67
33.00
33.00
33.00
33.00
33.00
33.33
33.33
33.33
33.67
33.67
33.67
34.00
34.00
34.00
34.00
34.00
34.00
34.00
s No data submitted
0 = Insufficient data
^
Lab
TC
BG
A
VI
UX
JG
GL
SC
EB
TQ
AW
TR
PU
PQ
CK
AF
WK
NJ
GI
VA
PV
AJ
WF
VH
sv
MQ
CM
BC
AN
Average Tag
34.33
34.33
34.67
34.67
34.67
35.00
35.00
35.00
35.00
35.00
35.00
35.00
35.00
35.00
35.00
35.00
35.33
35.33
35.33
35.33
35.33
35.67
35.67
35.67
35.67
35.67
35.67
35.67
35.67
TAG SYMBOLS
Lab
SD
DG
SX
NH
HX
X
w
VE
RU
QZ
QT
QJ
PI
CC
BN
BH
UY
SZ
DM
CP
AH
UP
TD
RH
PM
OA
LF
JE
GE
Average Tag
35.67
35.67
36.00
36.00
36.00
36.33
36.33
36.33
36.33
36.33
36.33
36.33
36.33
36.67
36.67
36.67
36.67
36.67
36.67
36.67
37.00
37.00
37.00
37.00
37.00
37.00
37.00
37.00
37.33
ft s Above control
x = Determined to be an outlier !) = Below control
Lab
FZ
DE
RO
BO
AK
TL
SF
I
EL
DO
CJ
C
AY
VS
MA
M
KL
HJ
DT
DL
T
SR
SN
RR
PW
HK
BM
AE
WD
limit
limit
*
-------
S. .. . ;
CRD-LV
Cesium-134
Performance Evaluation: Gamma
in Water, 3-Nov-1995
23/37 1
Data sorted by Laboratory Average
Average Tag
37.33
37.33
37.33
37.33
37.33
37.33
37.33
37.33
37.33
37.33
37.33
37.33
37.33
37.67
37.67
37.67
37.67
38.00
38.00
38.00
38.00
38.00
38.00
38.33
% responding labs
10
-6 -4
Lab Average Tag
VO 38.33
UN 38.33
SM 38.33
R 38.33
Q 38.67
PE 38.67
OM 38.67
N 38.67
LT 39.00
J 39.00
DD 39.00
BL 39.00
AU 39.33
LE 39.33
GQ 39.33
FJ 39.33
CA 39.67
TI 39.67
RZ 39.67
JS 40.00
EZ 40.00
CE 40.00
AP 40.00
SI 40.33
Frequency distribution
1.
.III..! .
-2 0
Lab Average Tag
RV 40.33
QX 40.33
KX 40.67
CX 41.00
S 41.00
HP 41.00
E 41.00
CQ 41.00
TH 41.33
QW 42.00
HL 42.33
BB 42.67
SS 43.33
RF 43.33
O 43.67
1C 43.67
NO 44.00
L 45.33
DH 45.67
RX 61.67 x
EX 69.00 x
EA 82.00 x
BA 247.33 x
PB 325.67 x
+2 +4
Lab
MX
FL
OL
UW
UT
U
QU
KH
QP
K
CS
JY
HI
AL
DZ
BK
VM
MP
AZ
UR
LR
WO
WL
WJ
I
+6
Normalized deviation of the mean from the known value
% responding labs
Frequency distribution
m
-6 -4
= No data submitted
0 = Insufficient data
Illll .
_ _ . .Illllllllllll.
-2 0
Normalized deviation of the mean from
_-_. .
+2 +4
the grand average
TA£ SYMBOLS ft = Above
x = Determined to be an outlier Jl H Below
I
control limit
control limit
-------
CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995
24/37
Cesium-137 Statistical Summary 193 Participants
The known value of this nuclide is 49.0 pCi/I with an expected precision of 5.0; the control limits
are 40.3 to 57.7; the warning regions are 40.3 to 43.2 and 54.8 to 57.7
33(17.1 %) Failed to respond ..
9(4.7 %) Outliers
5(2.6 %) Out of control
but not an outlier
Statistic
136(70.5 %) Within all limits
Respondents
* 1O(5.2 %) 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
66.29
140.10
19627.35
211.33
35.29
0.12
50.67
3.40
0.01
Grand Avg 50.81
3.13
9.82
6.17
3.69
0.58
50.67
3.40
0.53
14(8.8 %) More than 3 norm. S.D.
1O(6.3 %) Between 2 and 3 norm. S.D.
96(6O.O %) Within 1 norm. S.D.
of known value
4O(25.O %) Between 1 and 2 norm. S.D.
-------
25 / 37 CRD-LV Performance
Evaluation: Gamma in Water, 3-Nov-1995
1
Cesium-137
Lab
A
AE
AF
AH
AI
AJ
AK
AL
AN
AP
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BW
C
CA
CC
CE
CG
CJ
CK
CM
CO
CP
CQ
cs
ex
D
DD
DE
DG
DH
DL
=
0 s
V'
Res. 1
43.0
49.0
51.0
52.0
50.0
50.0
51.0
50.0
52.0
48.0
51.0
57.0
52.0
49.0
50.0
52.0
67.0
53.0
64.0
50.0
52.0
52.0
48.0
44.0
54.0
49.0
55.0
45.0
48.0
50.0
56.0
53.0
62.0
51.0
53.0
50.0
56.0
50.0
54.0
Res. 2
44.0
50.0
49.0
53.0
50.0
50.0
50.0
49.0
51.0
48.0
49.0
57.0
46.0
48.0
50.0
52.0
48.0
53.0
65.0
51.0
50.0
51.0
51.0
46.0
50.0
48.0
53.0
53.0
53.0
52.0
51.0
54.0
. 61.0
52.0
52.0
50.0
58.0
50.0
42.0
Res. 3
43.0
53.0
52.0
52.0
50.0
50.0
40.0
50.0
52.0
50.0
49.0
58.0
44.0
44.0
50.0
51.0
52.0
53.0
64.0
49.0
52.0
51.0
51.0
47.0
51.0
48.0
55.0
53.0
44.0
51.0
47.0
51.0
63.0
53.0
54.0
50.0
60.0
50.0
48.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.58
2.08
1.53
0.58
0.00
0.00
6.08
0.58
0.58
1.15
1.15
0.58
4.16
2.65
0.00
0.58
10.02
0.00
0.58
1.00
1.15
0.58
1.73
1.53
2.08
0.58
1.15
4.62
4.51
1.00
4.51
1.53
1.00
1.00
1.00
0.00
2.00
0.00
6.00
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
0.473
0.354
0.118
0.000
0.000
1.570
0.118
0.118
0.236,
0.236
0.118
0.945
0.591
0.000
0.118
3.371
0.000
0.118
0.236
0.236
0.118
0.354
0.354
0.473
0.118
0.236
0.945
1.120
0.236
1.120
0.354
0.236
0.236
0.236
0.000
0.473
0.000
1.795
43.33
50.67
50.67
52.33
50.00
50.00
47.00
49.67
51.67
48.67
49.67
57.33
47.33
47.00
50.00
51.67
55.67
53.00
64.33
50.00
51.33
51.33
50.00
45.67
51.67
48.33
54.33
50.33
48.33
51.00
51.33
52.67
62.00
52.00
53.00
50.00
58.00
50.00
48.00
TAG SYMBOLS
Determined
to be an
outlier
-2.59
-0.05
-0.05
0.53
-0.28
-0.28
-1.32
-0.39
0.30
-0.74
-0.39
2.26
-1.20
-1.32
-0.28
0.30
1.68
0.76
4.69
-0.28
0.18
0.18
-0.28
-1.78
0.30
-0.86
1.22
-0.16
-0.86
0.07
0.18
0.64
3:88
0.41
0.76
-0.28
2.49
-0.28
-0.97
ft = Above
U = Below
-1.96
0.58
0.58
1.15
0.35
0.35
-0.69
0.23
0.92
-0.12
0.23
2.89
-0.58
-0.69
0.35
0.92
2.31
1.39
5.31 x
0.35
0.81
0.81
0.35
-1.15
0.92
-0.23
1.85
*
0.46
-0.23
0.69
0.81
1.27
4.50 x
1.04
»
1.39
0.35
3.12 IT
0.35
-0.35
control limit
control limit
-4/
-------
CRD-LV Performance
Evaluation
: Gamma in Water,
3-Nov-1995
26 / 37 ]
Cesium-137
Lab
DM
DO
DR
DT
DZ
E
EA
EB
EL
EW
EX
EZ
FJ
FK
FL
FU
FZ
GE
GI
GL
GQ
m
HJ
HK
HL
HP
HX
I
1C
J
JE
JG
JI
JS
JY
K
KH
KL
KX
L
LE
LF
LR
LT
M
=
0 =
Res. 1
45.0
49.0
49.0
54.0
57.0
51.0
50.0
50.0
* '
52.0
42.0
51.0
54.0
45.0
55.0
44.0
47.0
52.0
56.0
54.0
52.0
55.0
52.0
50.0
51.0
52.0
50.0
53.0
51.0
54.0
51.0
53.0
59.0
51.0
49.0
54.0
57.0
48.0
52.0
52.0
51.0
Res. 2
46.0
55.0
48.0
54.0
51.0
50.0
49.0
50.0
54.0
51.0
51.0
53.0
49.0
51.0
49.0
50.0
52.0
59.0
49.0
54.0
55.0
53.0
50.0
48.0
51.0
50.0
53.0
55.0
50.0
58.0
51.0
62.0
49.0
52.0
57.0
55.0
51.0
50.0
52.0
49.0
Res. 3
48.0
58.0
53.0
49.0
55.0
51.0
48.0
52.0
51.0
50.0
49.0
51.0
50.0
48.0
48.0
50.0
51.0
57.0
48.0
51.0
55.0
53.0
49.0
43.0
52.0
49.0
51.0
56.0
54.0
52.0
53.0
58.0
50.0
48.0
58.0
54.0
49.0
50.0
54.0
46.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
1.53
4.58
2.65
2.89
3.06
0.58
1.00
1.15
1.53
4.93
1.15
1.53
2.65
3.51
2.65
1.73
0.58
1.53
3.21
1.53
0.00
0.58.
0.58
4.04
0.58
0.58
1.15
2.65
2.31
3.79
1.15
2.08
1.00
2.08
2.08
1.53
1.53
1.15
1.15
2.52
Rng anal
(R + SR) Average
0.354
1.120
0.591
0.591
0.709
0.118
0.236
0.236
0.354
1.120
0.236
0.354
0.591
0.827
0.591
0.354
0.118
0.354
0.709
0.354
0.000
0.118
0.118
0.945
0.118
0.118
0.236
0.591
0.473
0.827
0.236
0.473
0.236
0.473
0.473
0.354
0.354
0.236
0.236
0.591
46.33
54.00
-~ ! , *' ~-!- - ,s- i :* ;
50.00
52.33
54.33
50.67
49.00
50.67
-
52.33
47.67
50.33
52.67
48.00
51.33
47.00
49.00
51.67
57.33
50.33
52.33
55.00
52.67
49.67
47.33
51.67
49.67
52.33
54.00
52.67
53.67
52.33
59.67
50.00
49.67
56.33
55.33
49.33
50.67
52.67
48.67
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
-1.55
1.11
'Xi*^^V <:^
-0.28
0.53
1.22
-0.05
-0.63
-0.05
0.53
-1.09
-0.16
0.64
-0.97
0.18
-1.32
-0.63
0.30
2.26
-0.16
0.53
1.45
0.64
-0.39
-1.20
0.30
-0.39
0.53
1.11
-
0.64
0.99
0.53
3.07
-0.28
-0.39
1.91
1.57
-0.51
-0.05
0.64
-0.74
IT s Above
^ = Below
-0.92
1.73
- <^;;Tv\ '.'-.
0.35
1.15
1.85
0.58
0.00
0.58
«
1.15
-0.46
0.46
1.27
*
-0.35
0.81
-0.69
0.00
0.92
2.89
0.46
1.15
2.08
1.27
0.23
-0.58
0.92
0.23
1.15
1.73
1.27
1.62
1.15
3.70 IT
0.35
0.23
2.54
2.19
0.12
0.58
1.27
-0.12
control limit
control limit
-------
27 / 37 CRD-LV Performance
Evaluation: Gamma in Water, 3-Nov-1995
Cesium-137
Lab
MA
ML
MP
MQ
MV
MX
MY
N
NH
NJ
NK
NO
NP
NZ
O
OA
OB
OK
OL
OM
02
P
PB
PE
PI
PM
PQ
PU
PV
PW
Q
QJ
QM
QP
QT
QU
QW
QX
QZ
R
RF
RH
RL
RO
RR
=
0 =
Res. 1
52.0
52.0
50.0
52.0
54.0
51.0
49.0
51.0
56.0
49.0
54.0
49.0
51.0
45.0
54.0
51.0
50.0
49.0
56.0
45.0
51.0
47.0
50.0
59.0
49.0
52.0
54.0
59.0
51.0
53.0
45.0
46.0
51.0
47.0
Res. 2
54.0
55.0
51.0
55.0
48.0
51.0
48.0
52.0
56.0
48.0
55.0
55.0
49.0
45.0
57.0
50.0
55.0
51.0
57.0
50.0
51.0
47.0
51.0
50.0
48.0
52.0
51.0
62.0
49.0
56.0
47.0
48.0
49.0
46.0
Res. 3
52.0
53.0
53.0
54.0
51.0
50.0
49.0
54.0
55.0
46.0
55.0
51.0
51.0
45.0
57.0
50.0
52.0
48.0
57.0
47.0
49.0
48.0
54.0
46.0
44.0
53.0
50.0
62.0
52.0
53.0
45.0
47.0
53.0
49.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
1.15
1.53
1.53
1.53
3.00
0.58
0.58
1.53
0.58
1.53
0.58
3.06
1.15
0.00
1.73
0.58
2.52
1.53
0.58
2.52
1.15
0.58
2.08
6.66
2.65
0.58
2.08
1.73
1.53
1.73
1.15
1.00
-
2.00
1.53
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.236
0.354
0.354
0.354
0.709
0.118
0.118
0.354
0.118
0.354
0.118
0.709
0.236
0.000
0.354
0.118
0.591
0.354
0.118
0.591
0.236
0.118
0.473
2.020
0.591
0.118
0.473
0.354
0.354
0.354
0.236
0.236
0.473
0.354
52.67
/ "
53.33
51.33
53.67
51.00
50.67
48.67
52.33
55.67
47.67
54.67
51.67
' 50.33
45.00
56.00
50.33
52.33
49.33
56.67
47.33
50.33
47.33
51.67
51.67
47.00
52.33
51.67
61.00
50.67
54.00
45.67
47.00
51.00
47.33
TAG SYMBOLS
Determined
to be an
outlier
0.64
0.88
0.18
0.99
' '--.' " " ' v
0.07
-0.05
-0.74
0.53
1.68
-1.09
1.34
0.30
-0.16
-2.01
1.80
-0.16
0.53
-0.51
2.03
-1.20
-0.16
-1.20
0.30
0.30
-1.32
0.53
0.30
3.53
-0.05
1.11
-1.78
-1.32
0.07
-1.20
It & Above
U. s Below
1.27
v. , ,,, , ( 9 ,
1.50
0.81
*'
1.62
,
0.69
0.58
-0.12
*
1.15
2.31
-0.46
1.96
''
0.92
0.46
»
-1.39
2.42
0.46
1.15
0.12
2.66
-0.58
0.46
-0.58
0.92
»
0.92
-0.69
1.15
0.92
4.16 ft
0.58
1.73
-1.15
-0.69
'
0.69
-0.58
control limit
control limit
-------
CRD-LV Performance
Evaluation
: Gamma in Water,
3-Nov-1995
t
28/37
Cesium-137
Lab
RU
RV
RX
RZ
S
sc
SD
SF
SI
SM
SN
SR
ss
ST
sv
sx
sz
T
TB
TC
TD
TH
TI
TL
TO
TQ
TR
TS
U
UE
UM
UN
UP
UR
UT
UW
UX
UY
VA
VC
VE
VG
VH
VI
VM
=
0 =
V
Res, 1
48.0
50.0
52.0
49.0
50.0
44.0
53.0
53.0
52.0
50.0
50.0
50.0
53.0
47.0
45.0
51.0
49.0
53.0
45.0
50.0
64.0
44.0
i t
45.0
46.0
53.0
V
53.0
50.0
117.0
1.0
49.0
46.0
49.0
48.0
38.0
48.0
54.0
51.0
Res. 2
49.0
46.0
53.0
50.0
47.0
47.0
53.0
53.0
50.0
55.0
51.0
50.0
54.0
46.0
44.0
52.0
50.0
46.0
52.0
51.0
52.0
49.0
50.0
43.0
53.0
\
-
55.0
50.0
124.0
1.0
47.0
46.0
50.0
45.0
45.0
45.0
51.0
52.0
Res. 3
48.0
55.0
50.0
50.0
49.0
50.0
49.0
50.0
49.0
54.0
51.0
49.0
54.0
52.0
44.0
52.0
48.0
50.0
51.0
51.0
58.0
53.0
46.0
44.0
53.0
56.0
50.0
121.0
1.0
46.0
47.0
53.0
44.0
42.0
52.0
48.0
50.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.58
4.51
1.53
0.58
1.53
3.00
2.31
1.73
1.53
2.65
0.58
0.58
0.58
3.21
0.58
0.58
1.00
3.51
3.79
0.58
6.00
4.51
2.65
1.53
0.00
1.53
0.00
3.51
0.00
1.53
0.58
2.08
2.08
3.51
3.51
3.00
1.00
Rnganal
(R + SR)
0.118
1.120
0.354
0.118
0.354
0.709
0.473
0.354
0.354
0.591
0.118
0.118
0.118
0.709
0.118
0.118
0.236
0.827
0.827
0.118
1.795
1.120
0.591
0.354
0.000
0.354
0.000
0.827
0.000
0.354
0.118
0.473
0.473
0.827
0.827
0.709
0.236
Normalized deviation
Average
48.33
50.33
51.67
49.67
48.67
47.00
51.67
52.00
50.33
53.00
'50.67
49.67
53.67
48.33
44.33
51.67
49.00
49.67
49.33
50.67
58.00
48.67
47.00
44.33
53.00
s _.
54.67
50.00
120.67
1.00
47.33
46.33
50.67
45.67
41.67
48.33
51.00
51.00
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
-0.86
-0.16
0.30
-0.39
-0.74
-1.32
0.30
0.41
-0.16
0.76
-0.05
-0.39
0.99
-0.86
-2.24
0.30
-0.63
\ '
-0.39
-0.51
-0.05
2.49
-0.74
-1.32
-2.24
0.76
«
1.34
-0.28
24.20
17.25
-1.20
-1.55
-0.05
-1.78
-3.17
-
-0.86
0.07
0.07
ft = Above
li = Below
-0.23
0.46
0.92
0.23
-0.12
-0.69
0.92
1.04
0.46
1.39
0.58
0.23
1.62
-0.23
-1.62
0.92
0.00
. it':, ' '
0.23
0.12
0.58
3.12 ft
-0.12
-0.69
-1.62
1.39
1.96
0.35
24.83 x
-16.63 x
-0.58
-0.92
0.58
-1.15
-. .':".'-."."". ,- A
-., . ''*'
-2.54
' ;.4'..;,":,jx.- '
-0.23
0.69
0.69
control limit
control limit
v
-------
29/37 CRD-LV Performance Evaluation: Gamma
Cesium-137
Lab Res. 1 Res. 2
VO 52.0 53.0
VS 48.0 53.0
IVT * "-''
W 53.0 50.0
WD 49.0 48.0
WF* 90.0 90.0
WI . ' ;*' - ' >
WJ 440.0 432.0
WK 1743,0 1752.0
WL 334,0 286.0
WO = 9LO 77.0
X 59.0 56.0
Exper. Rng anal
Res. 3 Sigma (R + SR)
53.0 0.58 0.118
49.0 2.65 0.591
52.0 1.53 0.354
50.0 1.00 0.236
90.0 0.00 0.000
439.0 4.36 ', 0.945
1793.0 26.65 10.346
312.0 24.03 9.896
. 93.0 8.72 2.695
59.0 1.73 0.354
in Water, 3-Nov-1995
Normalized deviation
Average (grand-avg) (known)
52.67 0.64 1.27
50.00 -0.28 0.35
s -.
51.67 0.30 0.92
49.00 -0.63 0.00
90.00 1&58 14.20
437.00 133.78 134.41
1762:67 593,01 593.63
310.67 90.02 90:64
^ 87.00 : 12.54 13.16
58.00 2.49 3.12
Tag
"'
x
X ,
*"
' X /
"X :
ft
Data sorted by Laboratory Average
Average Tag
1.00 x
41.67
43.33
44.33
44.33
45.00
45.67
45.67
45.67
46.33
46.33
47.00
47.00
47.00
47.00
47.00
47.00
47.00
47.33
47.33
47.33
47.33
47.33
47.33
47.67
47.67
48.00
48.00
48.33
= No data submitted
0 = Insufficient data
Lab Average Tag
UT 48.33
VE 48.33
A 48.33
TR 48.33
SX 48.67
PB 48.67
VA 48.67
RF 48.67
C 48.67
UX 49.00
DM 49.00
TQ 49.00
SC 49.00
RH 49.33
QT 49.33
GI 49.33
BA 49.67
AL 49.67
UW 49.67
RR 49.67
Q 49.67
. PV 49.67
I 49.67
AZ 49.67
OA 50.00
EZ 50.00
FZ 50.00
DL 50.00
VH 50.00
TAG SYMBOLS
Lab Average Tag
SV 50.00
RU 50.00
CK 50.00
CC 50.00
TL 50.00
S 50.00
NJ 50.33
M 50.33
AU 50.33
WD 50.33
T 50.33
GL 50.33
EB 50.33
TD 50.33
PQ 50.67
LF 50.67
TC 50.67
SR 50.67
RZ 50.67
KX 50.67
J 50.67
HX 50.67
AW 50.67
AN 50.67
VS 51.00
UP 51.00
KL 51.00
DT 51.00
DH 51.00
ft = Above control
x = Determined to be an outlier li = Below control
Lab
DE
BO
BL
BB
AK
AJ
SI
RV
PW
PI
OM
HJ
FJ
CJ
UY
TH
SN
QZ
NH
LR
EL
EA
AF
AE
VM
VI
RO
N
CM
limit
limit
-------
CRD-LV
Cesium-137
Average Tag
51.33
51.33
51.33
51.33
51.33
51.67
51.67
51.67
51.67
51.67
51.67
51.67
51.67
51.67
51.67
51.67
51.67
51.67
52.00
52.00
52.33
52.33
52.33
52.33
% responding labs
in.
IU' ------- - - -
° -6 ' -'4
% responding labs
iu-
-6 -4
= No data submitted
0 3 Insufficient data
Performance Evaluation: Gamma in Water, 3-Nov-1995
Data sorted by Laboratory Average
Lab Average Tag Lab Average
MQ 52.33 JE 54.33
GE 52.33 HK 54.67
CP 52.33 EX 54.67
BN 52.33 DZ 55.00
BM 52.33 AH 55.33
W 52.67 VO 55.67
SZ 52.67 MA 55.67
SD 52.67 LT 56.00
RX 52.67 JS 56.33
QW 52.67 HP 56.67
QP 52.67 FL 57.33
QJ 52.67 CQ 57.33
OL 53.00 U 58.00
1C 53.00 SM 58.00
GQ 53.00 DD 58.00
CA 53.00 BH 59.67
BC 53.33 MP 61.00
AP 53.67 SS 62.00
SF 53.67 MX 64.33
CX 53.67 JY 87.00
QU 54.00 R 90.00
PM 54.00 JG 120.67
NO 54.00 DO 310.67
K 54.33 E 437.00
1762.67
Frequency distribution
_
------------------ »i- £
1 * ill II
_ T - fllllllllll.-.-- _
-2 6 +2
Normalized deviation of the mean from the known value
Frequency distribution
1
.ll.l.. --. T __
-2 0 +2
Normalized deviation of the mean from the grand average
TAG SYMBOLS ft s
x = Determined to be an outlier li s
Tag
ft
ft
ft
ft
ft
X
X
X
X
X
X
X
X
+4
+4
Above
Below
30/37 1
Lab
CE
UN
OB
HL
LE
O
BG
PE
L
PU
HI
AY
X
TI
DG
KH
QX
CS
BK
WO
WF
UR
WL
WJ
WK
I
' +6
i
+6
control limit
control limit
. /
-------
CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995
31/37
Barium-133 Statistical Summary 193 Participants
The known value of this nuclide is 99.0 pCi/1 with an expected precision of 10.0; the control limits
are 81.7 to 116.3; the warning regions are 81.7 to 87.4 and 110.6 to 116.3
36(18.7 %) Failed to respond -.
4(2.1 %) Outliers-'
2(1.0 %) Out of control'
but not an outlier
Statistic
. 135(69.9 %) Within all limits
Respondents
- 16(8.3 %) 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
103.69
78.47
6157.64
75.68
4.74
0.06
96.00
-3.03
-0.04
Grand Avg 95.64
6.59
43.47
6.89
-3.40
-0.51
96.00
-3.03
-0.46
6(3.8 %) More than 3 norm. S.D. -.
16(10.2 %) Between 2 and 3 norm. S.D.
9(56.7 %) Within 1 norm. S.D.
of known value
46(29.3 %) Between 1 and 2 norm. S.D.
-------
32 / 37 CRD-LV Performance
Evaluation
: Gamma in Water, 3-Nov-1995
Barium- 133
Lab
A
AE
AF
AH
AI
AJ
AK
AL
AN
AP
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BW
C
CA
CC
CE
CG
CJ
CK
CM
CO
CP
CQ
cs
ex
D
DD
DE
DG
DH
DL
Res. 1
89.0
96.0
93.0
99.0
96.0
90.0
97.0
92.0
94.0
92.0
90.0
103.0
113.0
106.0
86.0
85.0
97.0
92.0
; :: * :-
111.0
99.0
99.0
89.0
93.0
95.0
, 103.0
89.0
104.0
94.0
86.0
101.0
95.0
101.0
105.0
86.0
102.0
91.0
92.0
94.0
105.0
Res. 2
85.0
99.0
97.0
98.0
"/
99.0
92.0
108.0
106.0
90.0
98.0
90.0
102.0
101.0
100.0
94.0
86.0
96.0
92.0
112.0
100.0
99.0
89.0
96.0
91.0
97.0
88.0
102.0
92.0
86.0
101.0
107.0
97.0
106.0
87.0
102.0
92.0
95.0
95.0
100.0
Res. 3
76.0
101.0
93.0
100.0
96.0
89.0
99.0
92.0
91.0
99.0
86.0
104.0
95.0
103.0
90.0
86.0
84.0
93.0
112.0
100.0
99.0
92.0
95.0
91.0
98.0
87.0
93.0
88.0
88.0
96.0
98.0
100.0
105.0
90.0
102.0
92.0
90.0
95.0
105.0
= No data submitted
0 s
^ -
Insufficient
data
X s
Exper.
Sigma
6.66
2.52
2.31
1.00
1.73
1.53
5.86
8.08
2.08
3.79
2.31
1.00
9.17
3.00
4.00
0.58
7.23
0.58
0.58
0.58
0.00
1.73
1.53
2.31
3.21
1.00
5.86
3.06
1.15
2.89
6.24
2.08
0.58
2.08
0.00
0.58
2.52
0.58
2.89
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.768
0.295
0.236
0.118
\
0.177
0.177
0.650
0.827
0.236
0.413
0.236
0.118
1.120
0.354
0.473
0.059
0.768
0.059
0.059
0.059
0.000
0.177
0.177
0.236
0.354
0.118
0.650
0.354
0.118
0.295
0.709
0.236
0.059
0.236
0.000
0.059
0.295
0.059
0.295
83.33
98.67
94.33
99.00
97.00
90.33
101.33
96.67
91.67
96.33
88.67
103.00
103.00
103.00
90.00
85.67
92.33
92-33
111.67
99.67
99.00
90.00
94.67
92.33
99.33
88.00
99.67
91.33
86.67
99.33
100.00
99.33
105.33
87.67
102.00
91.67
92.33
94.67
103.33
TAG SYMBOLS
Determined
to be an
outlier
-2.13
0.52
-0.23
0.58
0.24
-0.92
0.99
0.18
-0.69
0.12
-1.21
1.28
1.28
1.28
-0.98
-1.73
-0.57
-0.57
2.78
0.70
0.58
-0.98
-0.17
-0.57
0.64
-1.32
0.70
-0.75
-1.55
0.64
0.76
0.64
1.68
-1.38
1.10
-0.69
-0.57
-0.17
1.33
tl & Above
li = Below
-2.71
-0.06
-0.81
0.00
'- * -
-0.35
-1.50
0.40
-0.40
-1.27
-0.46
-1.79
0.69
0.69
0.69
-1.56
-2.31
-1.15
-1.15
. ' y^*
2.19
0.12
0.00
-1.56
-0.75
»
-1.15
0.06
-1.91
0.12
-1.33
-2.14
0.06
> "'' "' '
0.17
0.06
1.10
-1.96
-*\ -
0^52
-1.27
-1.15
-0.75
0.75
control limit
control limit
-y
-------
CRD-LV Performance
Evaluation
Gamma in Water, 3-Nov-1995
33/37
Barium-133
Lab
DM
DO
DR
DT
DZ
E
EA
EB
EL
.EW/
EX
EZ
FJ
IJ»W '"
FK >
FL
FU-
FZ
GE
GI
GL
GQ
HI
HJ
HK
HL
HP
HX
I
1C
J
JE
JG
JI
JS
JY
K
KH
KL
KX
L
LE
LF
LR
LT
M
Res. 1
86.0
99.0
89.0
101.0
95.0
98.0
84.0
94.0
' - '"-Cr:-\:,i
97.0
111.0
97.0
, s,,^^^,.
109.0
, , , ,--,,>\,
95.0
97.0
85.0
94.0
96.0
100.0
99.0
92.0
100.0
101.0
96.0
85.0
96.0
105.0
94.0
78.0
,\
98.0
97.0
92.0
106.0
100.0
100.0
106.0
93.0
93.0
116.0
101.0
85.0
Res. 2
86.0
99.0
91.0
102.0
94.0
98.0
85.0
94.0
o- ,V~N ^
101.0
105.0
100.0
'"-"\»..y>;i -,-- , >
> s * _'
115.0
."*»o '
96.0
92.0
94.0
87.0
96.0
112.0
97.0
91.0
100.0
94.0
92.0
95.0
106.0
101.0
95.0
79.0
r"V " ,,
97.0
101.0
94.0
104.0
100.0
107.0
104.0
101.0
95.0
112.0
100.0
85.0
Res. 3
89.0
111.0
102.0
99.0
94.0
98.0
87.0
95.0
100.0
109.0
101.0
- - , ;% - »
99.0
" , , - «v>
91.0
97.0
95.0
92.0
96.0
116.0
94.0
90.0
100.0
94.0
93.0
86.0
99.0
102.0
95.0
82.0
-,X *'Y, ;
97.0
98.0
95.0
104.0
99.0
102.0
102.0
97.0
96.0
109.0
96.0
90.0
3 No data submitted
0 s
Insufficient
data
X 3
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
1.73
6.93
7.00
1.53
0.58
0.00
1.53
0.58
2.08
3.06
2.08
\ " ''..
8.08
V t ,--- >' ' '
2.65
2.89
5.51
3.61
0.00
8.33
2.52
1.00
0.00
4.04
2.08
5.51
5.13
2.08
0.58
2.08
.;- V- - ' -
0.58
2.08
1.53
1.15
0.58
3.61
2.00
4.00
1.53
3.51
2.65
2.89
0.177
0.709
0.768
0.177
0.059
0.000
0.177
0.059
, ' .«
0.236
0.354
0.236
.
0.945
0.295
0.295
0.591
0.413
0.000
0.945
0.295
0.118
0.000
0.413
0.236
0.591
0.591
0.236
0.059
0.236
0.059
0.236
0.177
0.118
0.059
0.413
0.236
0.473
0.177
0.413
0.295
0.295
87.00
103.00
94.00
100.67
94.33
98.00
85.33
94.33
~- -<." ;«v^u^; --
99.33
108.33
99.33
"" - ""- "v"\ \\VT^-";-^- -
\ \
107.67
' , rjYVvt-v
94.00
95.33
91.33
91.00
96.00
109.33
96.67
91.00
100.00
96.33
93.67
88.67
100.33
102.67
94.67
79.67
.. 7/.,.,,"V:C\.I T
97.33
98.67
93.67
104.67
99.67
103.00
104.00
97.00
94.67
112.33
99.00
86.67
TAG SYMBOLS
Determined
to be an
outlier
-1.50
1.28
-0.28
0.87
-0.23
0.41
-1.78
-0.23
;..;- x\
0.64
2.20
0.64
"V" '"-^"
"s - l
2.08
* '" ' '
-0.28
-0.05
-0.75
-0.80
0.06
2.37
0.18
-0.80
0.76
0.12
-0.34
-1.21
0.81
1.22
-0.17
-2.77
"-t -' '; :,
0.29
0.52
-0.34
1.56
0.70
1.28
1.45
0.24
-0.17
2.89
0.58
-1.55
ft 3 Above
li 3 Below
-2.08
0.69
-0.87
0.29
-0.81
-0.17
-2.37
-0.81
-, ,>;\< , «
0.06
1.62
0.06
-. X "''\ u ^ /
\ - V
1.50
^"\<" :,-.;
-0.87
-0.64
-1.33
-1.39
-0.52
1.79
-0.40
-1.39
0.17
-0.46
-0.92
-1.79
0.23
0.64
-0.75
-3.35 ji
,-" ;- . ,v ',»<-.
-0.29
-0.06
-0.92
0.98
0.12
0.69
0.87
-0.35
-0.75
2.31
0.00
-2.14
control limit
control limit
-------
34 / 37 CRD-LV Performance
Evaluation
Gamma in Water,
3-Nov-1995
.x
Barium- 133
Lab
MA
ML
MP
MQ
MV
MX
MY
N
NH
NJ
NK
NO
NP
NZ
O
OA
OB
OK
OL
OM
OZ
P
PB
PE
PI
PM
P9
S;-PU;i
PV
PW
Q
QJ
QM
QP
QT
QU
QW
QX
QZ
R
RF
RH
RL
RO
RR
Res. 1
106.0
107.0
99.0
101.0
93.0
86.0
87.0
100.0
100.0
, , , , ; , ., , ,
104.0
95.0
'
>
84.0
104.0
90.0
89.0
97.0
80.0
92.0
89.Q
100.0
95.0
92.0
100.0
99.0
102.0
93.0
92.0
95.0
88.0
94.0
92.0
Res. 2
101.0
109.0
103.0
100.0
93.0
83.0
89.0
-»
.... ..,.. ,
99.0
97.0
*
-,
98.0
95.0
85.0
104.0
90.0
99.0
99.0
92.0
93.0
92.0
100.0
87.0
95.0
100.0
100.0
105.0
94.0
93.0
89.0
89.0
86.0
89.0
Res. 3
101.0
108.0
101.0
102.0
94.0
89.0
90.0
'
101.0
99.0
87.0
90.0
86.0
103.0
86.0
89.0
92.0
85.0
96.0
87.0
100.0
106.0
97.0
99.0
98.0
101.0
95.0
93.0
90.0
92.0
89.0
91.0
3 No data submitted
0 3
Insufficient
data
x =
Exper. Rng anal
Sigma (R + SR) Average
2.89
1.00
2.00
1.00
0.58
3.00
1.53
1.00
1.53
8.62
2.89
1.00
0.58
2.31
5.77
3.61
6.03
2.08
2.52
0.00
9.54
2.52
0.58
1.00
2.08
1.00
0.58
3.21
2.08
4.04
1.53
0.295
0.118
0.236
0.118
0.059
0.354
0.177
0.118
0.177
1.008
0.295
0.118
0.059
0.236
0.591
0.413
0.709
0.236
0.295
0.000
1.233
0.295
0.059
0.118
0.236
0.118
0.059
0.354
0.236
0.473
0.177
102.67
108.00
101.00
101.00
93.33
86.00
88.67
100.00
98.67
-
96.33
' 93.33
85.00
103.67
88.67
92.33
96.00
85.67
93.67
89.33
100.00
96.00
94:67
99.67
99.00
102.67
94.00
92.67
91.33
89.67
89.67
90.67
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
1.22
s * - ' ,
2.14
0.93
0.93
-0.40
-1.67
-1.21
- ' "' -1 '
0.76
0.52
0.12
-0.40
-1.84
1.39
-1.21
-0.57
0.06
-1.73
-0.34
-1.09
0.76
0.06
-0.17
0.70
0.58
1.22
-0.28
-0.51
-0.75
-1.03
-1.03
-0.86
ft = Above
U s Below
0.64
''s * ,' '?
1.56
* --
0.35
, *
0.35
-0.98
-2.25
-
-1.79
-'» . '
' - " ", »
0.17
-0.06
'
-0.46
-0.98
* /.
* -
-2.42
0.81
-1.79
-1.15
-0.52
*
-2.31
-0.92
-1.67
0.17
v -
-0.52
-0.75
0.12
0.00
0.64
-0.87
-1.10
-1.33
-1.62
'
-1.62
-1.44
control limit
control limit
-------
CRD-LV Performance
Evaluation: Gamma in Water,
3-Nov-1995
35/37
Barium- 133
Lab
RU
RV
RX
RZ
S
sc
SD
SF
SI
SM
SN
SR
ss
ST
SV
sx
sz
T
TB
TC
TD
TH
TI
TL
TO
TQ
TR
TS
U
UE
UM.
UN
UP
UR
UT
UW
UX
UY
VA
VC
VE
VG
VH
VI
VM
=
0 =
Res. 1
98.0
110.0
98.0
95.0
97.0
86.0
88.0
99.0
95.0
98.0
92.0
97.0
107.0
98.0
101.0
92.0
94.0
98.0
92.0
96.0
101.0
93.0
90.0
92.0
95.0
87.0
91.0
61.6
32:6
101.0
82.0
106.0
94.0
95.0
: :<' ' '
86.0
93.0
96.0
Res. 2
96.0
103.0
110.0
96.0
98.0
87.0
87.0
98.0
92.0
105.0
92.0
91.0
106.0
98.0
97.0
95.0
97.0
78.0
87.0
98.0
98.0
92.0
88.0
93.0
95.0
86.0
93.0
70.6
32,0
103.0
83.0
99.0
84.0
91.0
83.0
88.0
97.0
Res. 3
93.0
103.0
106.0
97.0
98.0
90.0
81.0
100.0
91.0
99.0
91.0
93.0
106.0
105.0
103.0
93.0
97.0
88.0
86.0
97.0
100.0
90.0
91.0
96.0
98.0
"- - " -
92.0
90.0
55;6
32.0
99.0
82.0
101.0
87.0
.' v .-'S::'?.
92.0
87.0
88.0
98.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
2.52
4.04
6.11
1.00
0.58
2.08
3.79
1.00
2.08
3.79
0.58
3.06
0.58
4.04
3.06
1.53
1.73
10.00
3.21
1.00
1.53
1.53
1.53
2.08
1.73
3.21
1.53
7.55
0.00
2.00
0.58
3.61
5.13
2.08
2.08
2.89
1.00
Rng anal
(R + SR)
0.295
0.413
0.709
0.118
0.059
0.236
0.413
0.118
0.236
0.413
0.059
0.354
0.059
0.413
0.354
0.177
0.177
1.345
0.354
0.118
0.177
0.177
0.177
0.236
0.177
0.354
0.177
0.886
0.000
0.236
0.059
0.413
0.591
0.236
0.236
0.295
0.118
Average
95.67
105.33
104.67
96.00
97.67
87.67
85.33
99.00
92.67
100.67
91.67
93.67
106.33
100.33
100.33
93.33
96.00
88.00
88.33
97.00
99.67
91.67
89.67
93.67
96.00
88.33
91.33
£2:66
32.06
101.00
82.33
102.00
88.33
92.67
85.33
89.67
97.00
TAG SYMBOLS
Determined
to be an outlier
Normalized
(grand-avg)
0.01
1.68
1.56
0.06
0.35
-1.38
-1.78
0.58
-0.51
0.87
-0.69
-0.34
1.85
0.81
0.81
-0.40
0.06
-1.32
-1.26
0.24
0.70
-0.69
.,
-1.03
-0.34
0.06
..
-1.26
-0.75
-5.83
4102
0.93
-2.30
1.10
-1.26
-0.51
-
-1.78
-1.03
0.24
deviation
(known) Tag
-0.58
1.10
0.98
-0.52
-0.23
-1.96
-2.37
0.00
-1.10
0.29
-1.27
-0.92
1.27
0.23
0.23
-0.98
-0.52
-1.91
-1.85
-0.35
0.12
-1.27
..,-, .' .
-1.62
-0.92
'-
-0.52
»
-1.85
-1.33
-6.41 x
-11.60 x
0.35
-2.89
0.52
-1.85
^ . ''"
-1.10
*
-2.37
-1.62
-0.35
ft = Above control limit
U- = Below control limit
-------
36/37
Barium
Lab
VO
VR
vs
VT
W
WD
WF
WI
WJ
WK
WL
WO
X
CRD-LV Performance Evaluation: Gamma
133
Res. 1 Res. 2
97.0 98.0
98.0 99.0
99.0 96.0
103.0 101.0
77.0 77.0
* " ,
896.0 900.0
89.0 88.0
751.0 544.0
115.0 118.0
82.0 93.0
Exper. Rng anal
Res. 3 Sigma (R + SR)
109.0 6.66 0.709
. 101.0 1.53 0.177
94.0 2.52 0.295
95.0 4.16 0.473
77.0 0.00 0.000
912.0 8.33 0.945
87.0 1.00 0.118
656.0 103.62 22.384
113.0 2.52 0.295
84.0 5.86 0.650
in Water, 3-Nov-1995
Normalized deviation
Average (grand-avg) (known)
Tag
101.33 0.99 0.40
99.33 0.64 0.06
96.33 0.12 -0.46
99.67 0.70 0.12
77.00 -3.23 -3.81
902.67 139.78 139.20
88.00 -1.32 -1.91
650.33 96.08 95.49
115.33 3.41 2.83
86.33 -1.61 -2.19
» -.-
u
*
X
X
Data sorted by Laboratory Average
Average
32.00
62.00
77.00
79.67
82.33
83.33
85.00
85.33
85.33
85.33
85.67
85.67
86.00
86.33
86.67
86.67
87.00
87.67
87.67
88.00
88.00
88.00
88.33
88.33
88.33
88.67
88.67
88.67
88.67
s No
Tag
X
X
U
U
data submitted
0 = Insufficient data
Lab
UT
UR
WF
JG
UX
A
PB
VH
SD
EB
PV
BC
NJ
X
M
CK
DM
SC
CX
WK
TC
CC
VA
UN
TD
PI
NO
I
AW
Average Tag
89.33
89.67
89.67
89.67
89.67
90.00
90.00
90.33
90.67
91.00
91.00
91.33
91.33
91.33
91.33
91.67
91.67
91.67
91.67
92.33
92.33
92.33
92.33
92.33
92.67
92.67
92.67
93.33
93.33
TAG SYMBOLS
Lab
Q
VI
TQ
RO
RH
BN
BB
AK
RR
HK
GL
UP
RF
GI
CJ
TL
SN
DE
AP
PM
DG
C
BH
BG
VE
SI
R
SZ
OM
Average Tag
93.33
93.67
93.67
93.67
93.67
93.67
94.00
94.00
94.00
94.33
94.33
94.33
94.67
94.67
94.67
94.67
94.67
95.33
95.67
96.00
96.00
96.00
96.00
96.00
96.00
96.33
96.33
96.33
96.33
ft = Above control
x = Determined to be an outlier !) = Below control
Lab
NH
TR
SR
PW
K
HX
QZ
FZ
DT
EL
E
AF
QT
LF
JE
DH
BO
GE
RU
U
T
RZ
QP
PQ
GQ
W
OL
HP
AU
limit
limit
-------
CRD-LV Performance Evaluation: Gamma in Water, 3-Nov-1995
Barium-133
Average Tag
96.67
96.67
97.00
97.00
97.00
97.00
97.33
97.67
98.00
98.67
98.67
98.67
99.00
99.00
99.00
99.00
99.00
99.33
99.33
99.33
99.33
99.33
99.33
% responding labs
in. ___________
° -6 ' -4
% responding labs
IU"
-6 -4
s No data submitted
0 = Insufficient data
Data sorted by Laboratory Average
Lab
HJ
AN
VM
TH
LE
AJ
JS
S
EA
OA
JY
AE
SF
QW
LT
BM
AH
VS
FJ
EX
CQ
CM
CA
Average Tag Lab
99.67 WD
99.67 TI
99.67 QU
99.67 KL
99.67 CE
99.67 BL
100.00 QJ
100.00 O
100.00 HL
100.00 CP
100.33 SX
100.33 SV
100.33 1C
100.67 SM
100.67 DZ
101.00 UW
101.00 N
101.00 MX
101.33 VO
101.33 AL
102.00 UY
102.00 DD
102.67 QX
Average Tag
102.67
102.67
103.00
103.00
103.00
103.00
103.00
103.33
103.67
104.00
104.67
104.67
105.33
105.33
106.33
107.67
108.00
108.33
109.33
111.67
112.33
115.33
650.33 x
902.67 x
Frequency distribution
_ _. II
_ . .iilillliLlliL. .
-2 0 +2 +4
Normalized deviation of the mean from the known value
Frequency distribution
_ .. __
_ __ |.
.Illllllll-llll.. T. . _
-2 0 +2 +4
Normalized deviation of the mean from the grand average
TAG SYMBOLS fl = Above
x = Determined to be an outlier U s Below
- - 1
37/37
Lab
MA
J
KX
DO
BA
AZ
AY
DL
PE
L
RX
KH
RV
CS
ss
FL
MP
EZ
m
BK
LR
WO
WL
WJ
lim
+6
ffii
+6
control limit
control limit
------- |