United States
En.vi;onmental Protection
Agency
Environmental Monitoring
Systems Laboratory
P.O. Box 93478
Las Vegas NV 89193-3478
EPA600/R-92/122
June 1992
Research and Development
Gross Alpha-Beta in Water
Intercomparison Study
A Statistical Evaluation of the
May 15,1992 Data
5168GR92NRD-10
-------
Gross Alpha-Beta in Water
Intercomparison Study
May 15, 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 Gross Alpha-Beta in Water; May 15, 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.
-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992 1/19
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 Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992 2/19
Gross Alpha Statistical Summary 233 Participants
The known value of this nuclide is 15.0 pCi/1 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
43(18.5 %) Failed to respond «.%
6(2.6 %) Outliers '
13(5.6 %) Out of control
but not an outlier
Statistic
146(62.7 %) Within all limits
Respondents
25(10.7 %) 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
16.13
12.25
150.15
75.97
7.53
0.09
14.33
-4.44
-0.05
Grand Avg 14.34
4.94
24.36
34.41
-4.37
-0.13
14.17
-5.56
-0.17
22(11.6 %) More than 3 norm. S.D.
22(11.6 %) Between 2 and 3 norm. S.D.
;85(44.7 %) Within 1 norm. S.D.
of known value
61(32.1 %) Between 1 and 2 norm. S.D.
-------
3/19 EMSL-LV Inter-comparison
Gross Alpha
Lab Res. 1
A
AB
AE
AF
AI
AJ
AK
AL
AN
AO
AP
AR
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CJ
CK
CO
CP
CQ
CS
CX
D
DB
DD
DE
DG
=
0
14.0
18.0
14.0
23.0
23.0
14.0
22.0
10.0
10.0
20.0
16.0
16.0
9.0
15.0
12.0
14.0
17.0
20.0
10.0
12.0
11.0
13.0
10.0
14.0
15.0
12.0
'
.-,. 8&0-
15.0
10.0
13.0
9.0
18.0
12.0
15.0
20.0
14.0
15.0
19.0
21.0
13.0
9.0
7.0
Res. 2
14.0
20.0
13.0
24.0
16.0
12.0
24.0
9.0
13.0
16.0
18.0
16.0
9.0
14.0
f
14.0
14.0
18.0
21.0
12.0
14.0
10.0
12.0
9.0
14.0
16.0
11.0
.-..XS&& *
15.0
14.0
12.0
10.0
17.0
12.0
16.0-
21.0
13.0
14.0
18.0
19.0
11.0
11.0
9.0
Res. 3
14.0
21.0
13.0
22.0
14.0
13.0
23.0
11.0
14.0
16.0
16.0
16.0
10.0
14.0
j.
15.0
14.0
21.0
19.0
11.0
13.0
12.0
12.0
12.0
14.0
16.0
12.0
'
,,'; l8(Mfc
15.0
13.0
13.0
11.0
18.0
12.0
17.0
22.0
12.0
16.0
18.0
18.0
12.0
12.0
7.0
No data submitted
Insufficient
data
X s
Study: Gross Alpha-Beta in Water, 15-May-1992
Exper.
Sigma
0.00
1.53
0.58
1.00
4.73
1.00
1.00
1.00
2.08
2.31
1.15
0.00
0.58
0.58
1.53
0.00
2.08
1.00
1.00
1.00
1.00
0.58
1.53
0.00
0.58
0.58
J.., 86,04 .,.
0.00
2.08
0.58
1.00
0.58
0.00
1.00
1.00
1.00
1.00
0.58
1.53
1.00
1.53
1.15
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.000
0.354
0.118
0.236
1.120
0.236
0.236
0.236
0.473
0.473
0.236
0.000
0.118
0.118
0.354
0.000
0.473
0.236
0.236
0.236
0.236
0.118
0.354
0.000
0.118
0.118
10,29$
0.000
0.473
0.118
0.236
0.118
0.000
0.236
0.236
0.236
0.236
0.118
0.354
0.236
0.354
0.236
14.00
19.67
13.33
23.00
17.67
13.00
23.00
10.00
12.33
17.33
16.67
16.00
9.33
14.33
-
13.67
14.00
18.67
20.00
11.00
13.00
11.00
12.33
10.33
14.00
15,67
11.67
..,,..42S,00 ,
15.00
12.33
12.67
10.00
17.67
12.00
16.00
21.00
13.00
15.00
18.33
19.33
12.00
10.67
7.67
TAG SYMBOLS
Determined
to be an
outlier
-0.12
1.84
-0.35
3.00
1.15
-0.47
3.00
-1.50
-0.70
1.04
0.80
0.57
-1.74
0.00
-0.23
-0.12
1.50
1.96
-1.16
-0.47
-1.16
-0.70
-1.39
-0.12
0.46
-0.93
8&$8 ,
0.23
-0.70
-0.58
-1.50
1.15
-0.81
0.57
2.31
-0.47
0.23
1.38
1.73
-0.81
-1.27
-2.31
IT & Above
j|. = Below
-0.35
1.62
-0.58
2.77
0.92
-0.69
2.77
-1.73
-0.92
0.81
0.58
0.35
-1.96
-0.23
»
-0.46
-0.35
1.27
1.73
-1.39
-0.69
-1.39
-0.92
-1.62
-0.35
0.23
-1.15
»
3*41 X
0.00
-0.92
-0.81
-1.73
0.92
-1.04
0.35
2.08
-0.69
0.00
1.15
1.50
-1.04
-1.50
-2.54
control limit
control limit
-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992 4/19
Gross Alpha
Lab Res. 1
DH
DM
DO
DP
DR
DS
DT
DX
BY
DZ
E
EA
EB
EH
EL
EO
ER
ES
PE '
FF
$9
FL
FN
FP
FU
FW
FZ
GE
GJ
GT
GZ
HE
HH
HI
HK
HL
HN
HP
HU
14.0
f f S f
9.0
i. , ,
11.0
18.0
14.0
f f jf '
15.0
7.0
29.0
16.0
19.0
11.0
13.0
14.0
25.0
15.0
-' '"'- tfetf"-
14.0
18.0
10.0
10.0
14.0
16.0
/ "/ 1 ' " ?/
4.0
14.0
/ : ;/'^!;
14.0
12.0
12.0
11.0
16.0
16.0
f
15.0
f ff f
Res. 2
12.0
'? - -~CV?
f . .
8.0
f
18.0
15.0
13.0
' ' '*> ,
15.0
7.0
26.0
16.0
18.0
12.0
11.0
14.0
25.0
'' ' " '' , ''
16.0
- ', *' ,6&o
11.0
22.0
10.0
11.0
11.0
18.0
"'*.",,'&,'>
4.0
15.0
' 13.0
13.0
11.0
12.0
16.0
16.0
/ '
13.0
' ~ t
Res. 3
12.0
/ - -
11.0
*- '.
f
14.0
20.0
14.0
', - '"
15.0
7.0
25.0
16.0
17.0
10.0
14.0
14.0
24.0
f ' ' _._, ' f ff
14.0
r - -:<&&0
11.0
23.0
13.0
12.0
12.0
16.0
'^:^''' f -/'
3.0
* , * M ;r ' ','
/, t,,t, ', ",
U.O
13.0
12.0
12.0
10.0
17.0
16.0
16.0
'* '. -
s No data submitted
0 B
Insufficient
data
XS
Exper.
Sigma
1.15
' ,
1.53
3.51
2.52
0.58
/
0.00
0.00
2.08
0.00
1.00
1.00
1.53
0.00
0.58
&00
1.00
{WSh
1.73
2.65
1.73
1.00
1.53
1.15
f f
0.58
0.58
0.58
0.58
0.58
1.00
0.58
0.00
1.53
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.236
'
0.354
;
0.827
0.591
0.118
' , ',
0.000
0.000
0.473
0.000
0.236
0.236
0.354
0.000
0.118
4473
0.236
0.591
0.354
0.591
0.354
0.236
0.354
0.236
f
0.118
0.118
0.118
0.118
0.118
0.236
0.118
0.000
0.354
12.67
'
9.33
_. ..
'
14.33
17.67
13.67
' ' '
15.00
7.00
26.67
16.00
18.00
11.00
12.67
14.00
24.67
40.00
15.00
,"- mm
12.00
21.00
11.00
11.00
12.33
16.67
' ;, ', ' ""''''
3.67
14.33
13.33
12.33
11.67
11.00
16.33
16.00
14.67
TAG SYMBOLS
Determined
to be an
outlier
:0.58
- t
-1.74
'*,
0.00
1.15
-0.23
'
0.23
-2.54
4.27
0.57
1.27
-1.16
-0.58
-0.12
3.58
8.89
0.23
wM
-0.81
2.31
-1.16
-1.16
-0.70
0.80
' , ' '
-3.70
0.00
-0.35
-0.70
-0.93
-1.16
0.69
0.57
0.11
tl s Above
U s Below
:0.81
-- .
-1.96
*
*
-0.23
0.92
-0.46
*
0.00
-2.77
4.04 IT
0.35
1.04
-1.39
-0.81
-0.35
3.35 11
V
*
8.66 X
0.00
W 4$ - ' X
-1.04
2.08
-1.39
-1.39
-0.92
0.58
*
-3.93 U
*
-0.23
*
-0.58
-0.92
-1.15
-1.39
0.46
0.35
*
-0.12
control limit
control limit
-------
5/19 EMSL-LV Intercomparison Study: Gross Alpha-Beta in Water, 15-May-1992
Gross Alpha
Lab Res. 1
HY
I
1C
ID
IE
10
J
JE
JG
JH
JM
JN
JP
JQ
JS
K
KC
KE
KF
KH
BJT
KX
KZ
L
LA
LE
LF
LG
LL
LM
LR
LS
LT
XX
M
MA
ME
MQ
MS
MV
MX
MY
N
NA
NB
=
0 m
13.0
14.0
22.0
24.0
21.0
15.0
11.0
14.0
12.0
9.0
11.0
10.0
14.0
14.0
16.0
9.0
17.0
14.0
22.0
18.0
6.0
20.0
3.0
20.0
8.0
3.0
13.0
11.0
f
16.0
9.0
19.0
18.0
5.0
4.0
17.0
19.0
8.0
Res. 2
13.0
13.0
23.0
16.0
19.0
15.0
11.0
17.0
10.0
9.0
9.0
11.0
15.0
15.0
17.0
9.0
,
18.0
14.0
20.0
14.0
5.0
18.0
3.0
20.0
9.0
5.0
14.0
' , * *< " ', '
10.0
' * ' '' ' +'
16.0
10.0
19.0
14.0
6.0
4.0
19.0
20.0
8.0
Res. 3
12.0
10.0
22.0
23.0
19.0
15.0
11.0
18.0
9.0
11.0 %
11.0 %
9.0
16.0
17.0
19.0
9.0
,
-
19.0
'
14.0
23.0
14.0
6.0
18.0
3.0
18.0
9.0
4.0
14.0
** -° / °*
10.0
f
15.0
9.0
20.0
14.0
8.0
4.0
18.0-
21.0
8.0
No data submitted
Insufficient
data
x &
Exper.
Sigma
0.58
2.08
0.58
4.36
1.15
'
0.00
0.00
2.08
1.53
1.15
1.15
1.00
1.00
1.53
1.53
0.00
"
, , -
1.00
0.00
1.53
2.31
0.58
1.15
0.00
1.15
0.58
1.00
0.58
, *'
0.58
0.58
0.58
0.58
2.31
1.53
0.00
1.00
1.00
0.00
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
0.473
0.118
0.945
0.236
0.000
0.000
0.473
0.354
0.236
0.236
0.236
0.236
0.354
0.354
0.000
0.236
0.000
0.354
0.473
0.118
0.236
0.000
0.236
0.118
0.236
0.118
0.118
0.118
0.118
0.118
o'.473
0.354
0.000
0.236
0.236
0.000
12.67
12.33
22.33
21.00
19.67
15.00
11.00
16.33
10.33
9.67
10.33
10.00
15.00
15.33
17.33
9.00
-
18.00
14.00
21.67
15.33
5.67
18.67
3.00
19.33
8.67
4.00
13.67
'
10.33
15.67
9.33
19.33
15.33
6.33
4.00
18.00
20.00
8.00
TAG SYMBOLS
Determined
to be an
outlier
-0.58
-0.70
2.77
2.31
1.84
0.23
-1.16
0.69
-1.39
-1.62
-1.39
-1.50
0.23
0.34
1.04
-1.85
/
1.27
-0.12
2.54
0.34
-3.01
1.50
-3.93
1.73
-1.97
-3.58
-0.23
-1.39
0.46
-1.74
1.73
0.34
-2.78
-3.58
1.27
1.96
-2.20
ft s Above
fl. s Below
-0.81
-0.92
2.54
2.08
1.62
*
0.00
-1.39
0.46
-1.62
-1.85
-1.62
-1.73
0.00
0.12
0.81
-2.08
*
*
1.04
-0.35
2.31
0.12
-3.23 11
1.27
-4.16 U
1.50
*
-2.19
-3.81 U
-0.46
* ;
-1.62
»
0.23
-1.96
1.50
0.12
-3.00
-3.81 U
1.04
1.73
-2.42
control limit
control limit
-------
EMSL-LV Intel-comparison Study : Gross Alpha-Beta in Water, 15-May-1992 6/19
Gross Alpha
Lab Res. 1
NE
NF
NG
NH
NI
NJ
NK
NO
NP
NT
O
OA
OB
OE
OF
tot*
QAf
OS
Of
OY
OZ
P
PA
PB
PC
PG
PL
PM
"PF
PQ
PR
PV
-PW
Q
QA
QC
QJ
QM
QP
QQ
QT
QU
QW
QX
17.0
32.0
14.0
fff f f
8.0
9.0
18.0
10.0
13.0
8.0
17.0
10.0
15.0
12.0
13.p
f
,
11.0
20.0
9.0
17.0
21.0
16.0
17.0
f f s
f fff f
6.0
13.0
24.0
9.0
, ' ''i' ' '";
12.0
17.0
15.0
18.0
6.0
10.0
11.0
7.0
12.0
15.0
25.0
Res. 2
18.0
29.0
15.0
, - * '*
8.0
11.0
16.0
9.0
16.0
9.0
14.0
10.0
14.0
12.0
13.0
f
/ f' ' - ,''
9.0
21.0
10.0
21.0
21.0
17.0
17.0
, ;,',
9.0
14.0
25.0
8.0
»'£% '/"/'''
10.0
18.0
14.0
- 19.0
6.0
11.0
11.0
8.0
14.0
16.0
25.0
Res. 3
20.0
30.0
16.0
-/: , ;* / , "-
8.0
9.0
16.0
9.0
13.0
9.0
16.0
8.0
14.0
13.0
15.0
', / " "'
', ' '"
8.0
* fff f ff
22.0
11.0
13.0
20.0
18.0
15.0
f f * b ^ ^
10.0
13.0
22.0
,..,, 8;°L
'ff''!^/4''''^f' '
10.0
16.0
18.0
20.0
7.0
10.0
10.0
7.0
16.0
12.0
28.0
s No data submitted
0
Insufficient
data
x =
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
1.53
1.53
1.00
*" . ' f
0.00
1.16
1.15
0.58
1.73
0.58
1.53
1.15
0.58
0.58
1.15
,
1.53
1.00
1.00
4.00
0.58
1.00
1.15
'
2.08
0.58
1.53
0.58
/ '* '
1.15
1.00
2.08
1.00
0.58
0.58
0.58
0.58
2.00
2.08
1.73
0.354
0.354
0.236
* Sf f
0.000
0.236
0.236
0.118
0.354
0.118
0.354
0.236
0.118
0.118
0.236
'
0.354
0.236
0.236
0.945
0.118
0.236
0.236
0.473
0.118
0.354
0.118
0.236
0.236
0.473
0.236
0.118
0.118
0.118
0.118
0.473
0.473
0.354
18.33
30.33
15.00
'/, ";- * -''
8.00
9.67
16.67
9.33
14.00
8.67
15.67
9.33
14.33
12.33
13.67
-
''", ' - '*',',
9.33
21.00
10.00
17.00
20.67
17.00
16.33
, -
8.33
13.33
23.67
8.33
> > f f
10.67
17.00
15.67
19.00
6.33
10.33
10.67
7.33
14.00
14.33
26.00
TAG SYMBOLS
Determined
to be an
outlier »
1.38
5.54
0.23
' ', '"' ' " ,"
-2.20
-1.62
0.80
-1.74
-0.12
-1.97
0.46
-1.74
0.00
-0.70
-0.23
,
-1.74
2.31
-1.50
0.92
2.19
0.92
0.69
'
-2.08
-0.35
3.23
-2.08
- ' < ;''
-1.27
0.92
0.46
1.61
-2.78
-1.39
-1.27
-2.43
-0.12
0.00
4.04
IT s Above
li 3 Below
1.15
5.3i tr
0.00
*
-2.42
-1.85
0.58
-1.96
-0.35
-2.19
0.23
-1.96
-0.23
-0.92
-0.46
.
'*
-1.96
2.08
-1.73
0.69
1.96
0.69
0.46
*
-2.31
*
-0.58
3.00
-2.31
- ' ' '
-1.50
0.69
0.23
1.39
-3.00
-1.62
-1.50
-2.66
-0.35
-0.23
3.8i tr
control limit
control limit
-------
.7 / 19 EMSL-LV Inter-comparison Study: Gross Alpha-Beta in Water, 15-May-1992
Gross Alpha
Lab Res. 1
QZ
R
RB
RD
RE
RF
RG
EH
RI
RJ
RK
RM
RN
RQ
RR
ES
RU
RV
RZ
S
SA
SC
SD
SF
SG
SI
SL
SM
SN
SO
SR
ss
ST
su
sx
sz
T
TA
TC
TE
TG
TH
TI
14.0
18.0
15.0
16.0
3.0
12.0
15.0
30.0
''
20.0
21.0
8?&
10.0
9.0
24.0
17.0
10.0
19.0
13.0
17.0
26.0
20.0
15.0
15.0
10.0
14.0
18.0
15.0
18.0
12.0
12.0
16.0
12.0
11.0
9.0
12.0
3.0
9.0
Res. 2
16.0
18.0
17.0
14.0
3.0
14.0
18.0
30.0
,
18.0
19.0
$t&
11.0
/
12.0
25.0
17.0
11.0
18.0
15.0
17.0
25.0
20.0
15.0
14.0
10.0
15.0
16.0
14.0
18.0
11.0
16.0
18.0
12.0
12.0
9.0
12.0
3.0
11.0
Res. 3
17.0
20.0
16.0
15.0
2.0
17.0
'
18.0
30.0
f ''
17.0
24.0
87*0
10.0
,,
10.0
31.0
12.0
13.0
17.0
11.0
16.0
19.0
19.0
17.0
15.0
10.0
15.0
17.0
16.0
19.0
9.0
13.0
17.0
13.0
14.0
9.0
13.0
2.0
15.0
s No data submitted
0 =
Insufficient
data
X s
Exper.
Sigma
1.53
1.15
1.00
1.00
0.58
f
2.52
f
1.73
0.00
'
1.53
2.52
Qi
-------
EMSL-LV Intel-comparison Study: Gross Alpha-
Gross Alpha
Lab Res. 1 Res. 2
TK *"';;";<"' ;*','#;< &',>#
TL 16.0 14.0
TM 39.0, 39.0
U 21.0 21.0
W 10.0 11.0
X '
Y 23.0 23.0
Z 00.0 73.0
Exper. Rng anal
Res. 3 Sigma (R + SR)
&', ''',*?' ''''-"' ? - v,*&;
14.0 1.15 0.236
" ' 3&0 1,70 0.3S4
20.0 0.58 0.118
10.0 0.58 0.118
* . , , ' ,,''
23.0 0.00 0.000
59.0 16,04 5.846
Beta in Water, 15-May-1992 8
Normalized deviation
Average (grand-avg) (known)
* '-/* /,';-;;// x/?*i~v *<".', -
14.67 0.11 -0.12
" 38.00 ' &19 ' 7.^7
20.67 2.19 1.96
10.33 -1.39 -1.62
'',,","/",'
23.00 3.00 2.77
74.07 ' &K90 20.07
/19
Tag
'*»'
X
*
X
Data sorted by Laboratory Average
Average Tag
2.67 li
2.67 U
3.00 U
3.67 U
4.00 U
4.00 U
5.67 U
6.33
6.33
7.00
7.33
7.67
8.00
8.00
8.33
8.33
8.67
8.67
9.00
9.00
9.33
9.33
9.33
9.33
9.33
9.33
9.67
9.67
10.00
10.00
10.00
10.00
10.00
10.33
s No data submitted
0 = Insufficient data
Lab Average Tag
TH 10.33
RE 10.33
LG 10.33
GJ 10.33
MY 10.33
LS 10.33
LE 10.33
QM 10.67
MX 10.67
E 10.67
QT 10.67
DG 11.00
NI 11.00
NB 11.00
PV 11.00
PM 11.00
NT 11.00
LR 11.00
TE 11.33
KC 11.67
OS 11.67
OA 11.67
NO 12.00
MQ 12.00
DO 12.00
AU 12.33
NJ 12.33
JM 12.33
SN 12.33
OZ 12.33
JP 12.33
CJ 12.33
AL 12.33
W 12.33
TAG SYMBOLS
Lab Average Tag
RU 12.33
RR 12.67
QP 12.67
M 12.67
JN 12.67
JH 13.00
BL 13.00
SU 13.00
QQ 13.00
Q 13.33
DE 13.33
JE 13.33
HI 13.67
FU 13.67
FP 13.67
EL 13.67
BI 13.67
BG 14.00
S 14.00
TI 14.00
HH 14.00
BO 14.00
FL 14.00
DD 14.00
CO 14.33
TG 14.33
TA 14.33
. T 14.33
OE 14.33
I 14.33
HE 14.67
FW 14.67
CA 14.67
BK 14.67
Lab
AN
HY
EO
DH
CE
SC
CS
BH
AJ
PQ
GZ
AE
sx
OF
LT
DX
AZ
QU
NP
KZ
ER
BM
BA
A
RG
QW
OB
GT
DS
AW
TL
SO
SM
HP
ft s Above control limit
x = Determined to be an outlier * Us Below control
limit
-------
9/19 EMSL-LV Intel-comparison Study:
Gross Alpha
Gross Alpha-Beta in Water, 15-May-1992
Data sorted by Laboratory Average
Average Tag
15.00
15.00
15.00
15.00
15.00
15.00
15.00
15.00
15.00
15.33
15.33
15.33
15.33
15.67
15.67
15.67
15.67
15.67
15.67
16.00
16.00
16.00
16.00
16.00
16.33
16.33
16.33
16.67
16.67
% Frequency
Lab Average
SS 16.67
RD 16.67
NG 17.00
JQ 17.00
J 17.00
FF 17.00
DZ 17.00
CX 17.00
C 17.33
RZ 17.33
MV 17.67
LA 17.67
JS 17.67
SL 18.00
QZ 18.00
QC 18.00
O 18.00
ME 18.33
BN 18.33
RB 18.33
HL 18.33
EB 18.67
CP 18.67
AR 18.67
PG 19.00
JG 19.33
HK 19.33
SD 19.33
NK 19.67
Tag Lab
FZ
AP
SZ
SR
RI
QA
PB
P
K
AO
DT
CK
AI
SA
N
KH
EH
ST
RM
NE
D
R
LF
BB
QJ
MS
LL
DB
SI
Average Tag
19.67
19.67
20.00
20.00
20.67
20.67
21.00
21.00
21.00
21.00
21.33
21.67
22.33
23.00
23.00
23.00
23.33
23.67
24.67 ff
26.00 tr
26.67 tr
26.67 tr
30.00 tr
30.33 tr
38.00 x
40.00 x
60.67 x
74.67 x
87.00 x
125.00 x
Lab
IE
AB
NA
BC
U
PA
OY
ID
FN
CQ
RN
L
1C
Y
AK
AF
SG
PR
ES
QX
RV
EA
RJ
NF
TM
FE
FJ
Z
RQ
BW
distribution of responding labs(expected prec. vs known value)
_
-6 ' ?4
= No data submitted
0 s Insufficient data
_T__ .-flll.f.
exp. prec. -2
|||||||_||_| m
, 0 +2 exp. orec. **
known
value
TAG SYMBOLS tT s Above control
x = Determined to be an outlier $ = Below control
I
+6
limit
limit _,
-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15>May-1992 10 / 19
Gross Alpha
% Frequency distribution of responding labs(std. dev. vs mean value)
0-*r
* '4 std.dev. -2 mO^ +2 std. dev.
value
-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992 11/19
Gross Beta Statistical Summary 233 Participants
The known value of this nuclide is 44.0 pCi/I with an expected precision of 5.0; the control limits
are 35.3 to 52.7; the warning regions are 35.3 to 38.2 and 49.8 to 52.7
42(18.O %) Failed to respond .
6(2.6 %) Outliers
35(1 S.O %) Out of control *
but not an outlier
Statistic
; 125(53.6 %) Within all limits
Respondents
25(10.7 %) 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
44.89
26.78
717.24
59.66
2.03
0.03
43.67
-0.76
-0.01
Grand Avg 42.79
6.81
46.42
15.92
-2.75
-0.18
43.67
-0.76
-0.05
41(21.5 %) More than 3 norm. S.D. ,
25(13.1 %) Between 2 and 3 norm. S.D.
,82(42.9 %) Within 1 norm. S.D.
t
of known value
- 43(22.5 %) Between 1 and 2 norm. S.D.
-------
127
19 EMSL-LV Intel-comparison
Gross Beta
Lab Res. 1
A
AB
AE
AF
AI
AJ
AK
AL
AN
AO
AP
AR
AU
AW
Air
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CO
CJ
CK
CO
CP
CQ
CS
CX
D
DB
DD
DE
DG
=
0
45.0
36.0
37.0
47.0
50.0
47.0
48.0'
44.0
42.0
41.0
40.0
44.0
40.0
45.0
35.0
46.0
44.0
43.0
43.0
45.0
59.0
42.0
38.0
42.0
38.0
56.0
20.0
43.0
46.0
47.0
46.0
45.0
33.0
46.0
49.0
43.0
31.0
47.0
48.0
45.0
43.0
39.0
Res. 2
44.0
42.0
40.0
47.0
52.0
48.0
47.0
47.0
45.0
42.0
39.0
46.0
40.0
44.0
37.0
47.0
45.0
44.0
43.0
46.0
56.0
38.0
46.0
42.0
39.0
59.0
,
23.0
42.0
47.0
49.0
^' '
44.0
49.0
34.0
45.0-
50.0
44.0
30.0
47.0
49.0
46.0
43.0
33.0
Res. 3
44.0
45.0
36.0
43.0
50.0
46.0
47.0
48.0
42.0
44.0
44.0
45.0
41.0
42.0
38.0
48.0
47.0
45.0
40.0
45.0
49.0
41.0
36.0
43.0
41.0
56.0
f >
24.0
41.0
45.0
50.0
S , .- '
44.0
48.0
38.0
46.0
50.0
45.0
32.0
47.0
51.0
45.0
44.0
38.0
No data submitted
Insufficient
data
X s
Study: Gross Alpha-Beta in Water, 15-May-1992
Exper.
Sigma
0.58
4.58
2.08
2.31
1.15
1.00
0.58
2.08
1.73
1.53
2.65
1.00
0.58
1.53
, '
1.53
1.00
1.53
1.00
1.73
0.58
5.13
2.08
5.29
0.58
1.53
1.73
f
2.08
1.00
1.00
1.53
'
1.15
2.08
2.65
0.58
0.58
1.00
1.00
0.00
1.53
0.58
0.58
3.21
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
1.120
0.473
0.473
0.236
0.236
0.118
0.473
0.354
0.354
0.591
0.236
0.118
0.354
0.354
0.236
0.354
0.236
0.354
0.118
1.345
0.473
1.345
0.118
0.354
0.354
0.473
0.236
0.236
0.354
0.236
0.473
0.591
0.118
0.118
0.236
0.236
0.000
0.354
0.118
0.118
0.709
44.33
41.00
37.67
45.67
50.67
47.00
47.33
46.33
43.00
42.33
41.00
45.00
40.33
43.67
36.67
47.00
45.33
44.00
42.00
45.33
54.67
40.33
40.00
42.33
39.33
57.00
22.33
42.00
46.00
48.67
44.67
47.33
35.00
45.67
49.67
44.00
31.00
47.00
49.33
45.33
43.33
36.67
TAG SYMBOLS
Determined
to be an
outlier
0.53
-0.62
-1.78
1.00
2.73
1.46
1.57
1.23
0.07
-0.16
-0.62
0.77
-0.85
0.30
-2.12
1.46
0.88
0.42
-0.27
0.88
4.11
-0.85
-0.97
-0.16
-1.20
4.92
-7.09
-0.27
1.11
2.04
'
0.65
1.57
-2.70
1.00
2.38
0.42
-4.08
1.46
2.27
0.88
0.19
-2.12
ft s Above
li s Below
0.12
-1.04
-2.19
0.58
2.31
1.04
1.15
0.81
-0.35
-0.58
-1.04
0.35
-1.27
-0.12
»
-2.54
1.04
0.46
0.00
-0.69
0.46
3.70 ft
-1.27
-1.39
-0.58
-1.62
4.50 ft
»
-7.51 1). .
-0.69
0.69
1.62
»
0.23
1.15
-3.12 $
0.58
1.96
0.00
-4.50 U
1.04
1.85
0.46
-0.23
-2.54
control limit
control limit
-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992 13/19
Gross Beta
Lab Res. 1
DH
DM
DO
DP
DR
DS
DT
DX
DY
DZ
E
EA
EB
EH
1S&
EL
EO
ER
ES
HV
EW
FE
FF
"y&f'
FL
FN
FP
FU
FZ
GE
GJ
GT
Glf
GZ
TTR
HH
HI
HK
HL
HN
HP
=
0 s
44.0
' '-' ';' -^
47.0
48.0
f
44.0
49.0
43.0
45.0
f
''
42.0
44.0
43.0
41.0
43.0
,' , * ,
48.0
42.0
, ,' '"; #* "' '
6o!o
' * "; ^ '
51.0
45.0
40.0
'- > ''&01/'
43.0
40.0
40.0
35.0
26.0
44.0
18.0
44^0
'' -'" "ti"";f'
" /' %
48.0
50.0
45.0
47.0
45.0
48.0
-
40.0
Res. 2
44.0
' ,' "' '"7
42.0
49.0
- ', ', '" -*
46.0
55.0
44.0
46.0
! ff ff
41.0
44.0
41.0
41.0
45.0
f f f
49.0
41.0
' ' ,'' "<*''' ',
61.0
* ' ""-, '
53.0
46.0
52.0
'-'', ' *&"-
46.0
41.0
40.0
36.0
27.0
45.0
22.0
42.0
pj^^-p:,
44.0
49.0
43.0
47.0
45.0
48.0
_,
38.0
Res. 3
42.0
42.0
46.0
f ** "" *"' ff
46.0
51.0
46.0
46.0
''' .' '?, '", '
40.0
44.0
43.0
44.0
44.0
/, ', " f
50.0
50.0
V*' "-'"', '-
58.0
' , /' ' , '
47.0'
46.0
41.0
'/>r>^0 '
41.0
42.0
41.0
37.0
;' *2 £*?- " <
31.0
45.0
19.0
* V ff *'
44.0
/ * ' '
46.0
50.0
45.0
42.0
46.0
48.0
42.0
No data submitted
Insufficient
data
x =
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
1.15
2.89
1.53
,,
1.15
3.06
1.53
0.58
'
1.00
0.00
1.15
1.73
1.00
-
1.00
4.93
'
1.53
.
3.06
0.58
6.66
S0v00 '
2.52
1.00
0.58
1.00
2.65
0.58
2.08
1.15
2.00
0.58
1.15
2.89
0.58
0.00
2.00
0.236
0.591
0.354
0.236
0.709
0.354
0.118
*
0.236
0.000
0.236
0.354
0.236
' ' ,<*
0.236
1.120
* "
0.354
0.709
0.118
1.795
0*000
0.591
0.236
0.118
0.236
0.591
0.118
0.473
0.236
0.473
0.118
0.236
0.591
0.118
0.000
0.473
43.33
43.67
47.67
"
45.33
51.67
44.33
45.67
' '' '
41.00
44.00
42.33
42.00
44.00
' ',
49.00
44.33
', '," ' ' ' ' "
59.67
,* ,- ., '' /
50.33
45.67
44.33
&00
43.33
41.00
40.33
36.00
28.00
44.67
19.67
y '
43.33
46.00
49.67
44.33
45.33
45.33
48.00
40.00
TAG SYMBOLS
Determined to
be an
outlier *
0.19
0.30
1.69
* ,
0.88
3.07
0.53
1.00
'
-0.62
0.42
-0.16
-0.27
0.42
'
2.15
0.53
/
5.85
'
2.61
1.00
0.53
4&T4 - *
0.19
-0.62
-0.85
-2.35
-5.12
0.65
-8.01
0.19
1.11
2.38
0.53
0.88
0.88
1.80
-0.97
ft s Above
\ s Below
-0.23
-0.12
1.27
' / *
0.46
2.66
0.12
0.58
9
-1.04
0.00
-0.58
-0.69
0.00
»
1.73
0.12
*,
5.43 ft
*
2.19
0.58
0.12
18,16 x
-0.23
-1.04
-1.27
-2.77
*
-5.54 4
0.23
-8.43 U
-0.23
*
0.69
1.96
0.12
0.46
0.46
1.39
*
-1.39
control limit
control limit
-------
147
19 EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992
Gross Beta
Lab
HY
I
1C
ID
IE
IU
J
JE
JG
JH
JM
JN
JP
JS
K
KCf
fOS
KF
KH
id*
Kit
KZ
L
LA
LE
LF
LG
LL
LM
LR
LS
LT
M
MA
ME
MQ
MS
MV
MX
MY
N
NA
NB
Res. 1
55.0
48.0
48.0
41.0
57.0
37.0
43.0
42.0
44.0
47.0
44.0
42.0
46.0
41.0
14.0
43.0
,,
44.0
52.0
45.0
44.0
43.0
31.0
45.0
'
51.0
28.0
50.0
45.0
36.0
43.0
39.0
37.0
46.0
29.0
42.0
48.0
45.0
48.0
Res. 2
54.0
42.0
49.0
41.0
54.0
42.0
43.0
s
43.0
47.0
43.0
47.0
41.0
41.0
42.0
10*0-
%
43.0
'
,
44.0
52.0
44.0
40.0
42.0
37.0
46.0
48.0
29.0
42.0
42.0
41.0
38.0-
38.0
37.0
48.0
29.0
41.0
48.0
50.0
45.0
Res. 3
50.0
39.0
50.0
42.0
54.0
40.0
43.0
-,
43.0
44.0
45X)
47.0
41.0
47.0
45.0
1&$
45.0
'
f
45.0
52.0
45.0
42.0
41.0
32.0
42.0
f f
52.0
28.0
46.0
42.0
45.0
39.0
40.0
35.0
50.0
33.0
36.0
47.0
55.0
44.0
= No data submitted
0
Insufficient
data
X S
Exper.
Sigma
2.65
4.58
1.00
0.58
1.73
2.52
0.00
0.58
1.73
2.00
1.73
0.58
3.21
2.08
Q.5&
1.15
'
' '
0.58
0.00
0.58
2.00
1.00
3.21
2.08
*
2.08
0.58
4.00
1.73
4.51
2.65
1.00
1.15
2.00
2.31
3.21
0.58
5.00
2.08
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.591
1.120
0.236
0.118
0.354
0.591
0.000
0.118
0.354
0.473
0.354
0.118
0.709
0.473
0.348
0.236
0.118
0.000
0.118
0.473
0.236
0.709
0.473
0.473
0.118
0.945
0.354
1.120
0.591
0.236
0.236
0.473
0.473
0.709
0.118
1.345
0.473
53.00
43.00
49.00
41.33
55.00
39.67
43.00
42.67
45.00
45.00
46.00
41.33
44.67
42.67
um
43.67
44.33
52.00
44.67
42.00
42.00
33.33
44.33
,.
50.33
28.33
46.00
43.00
40.67
40.00
39.00
36.33
48.00
30.33
39.67
47.67
50.00
45.67
TAG SYMBOLS
Determined
to be an
outlier
3.54
0.07
2.15
-0.50
4.23
-1.08
0.07
'
-0.04
0.77
0.77
1.11
-0.50
0.65
-0.04
-9*74
0.30
'
0.53
3.19
0.65
-0.27
-0,27
-3.28
0.53
2.61
-5.01
1.11
0.07
-0.74
-0.97
-1.31
-2.24
1.80
-4.32
-1.08
1.69
2.50
1.00
tt s Above
$ = Below
3.12 IT
-0.35
1.73
-0.92
3.8i tr
-1.50
-0.35
*
-0.46
0.35
0.35
0.69
-0.92
0.23
-0.46
10.16 X j
* :
* :
-0.12
«
*
0.12
2.77
0.23
-0.69
-0.69
-3.70 U
0.12
*
2.19
-5.43 II
0.69
-0.35
-1.15
-1.39
-1.73
-2.66
1.39
-4.73 JJ.
-1.50
1.27
2.08
0.58
control limit
control limit
-------
EMSL-LV Intercomparison
Study: Gross Alpha-Beta in Water, 15-May
1992 15 / 19
Gross Beta
Lab
NE
tar'
NG
KR
NI
NJ
NK
NO
NP
NT
O
OA
OB
OE
OF
OL
OM
OS
otf
OY
OZ
P
PA
PB
PC
PG
Pi*
.PM
,JSP
PQ
PR
PV
/FIT
Q
QA
QC
QJ
QK
QM
QP
QQ
QT
QU
QW
QX
Real
31.0
34.0
' , '
34.0
43.0
50.0
39.0
44.0
46.0
50.0
41.0
55.0
45.0
46.0
f
** f
48.0
36.0
49.0
53.0
45.0
40.0
'
45.0
44.0
f f
20.0
45.0
30.0
' f' "*'"*"*
33.0
39.0
35.0
42.0
34.0
39.0
37.0
46.0
30.0
30.0
31.0
42.0
Res. 2
32.0
35.0
,'' ' ' /''
36.0
43.0
47.0
34.0
43.0
43.0
47.0
37.0
50.0
46.0
42.0
+ ..
,
56.0
38.0
50.0
51.0
45.0
41.0
', ' ' '',
46.0
,, '
49.0
'".,,. ' ' 't'/
22.0
46.0
33.0
f f " ffff" ff
f f.f j.S f f f
' fS f s ' '
40.0
39.0
. 36.0
45.0
36.0
38.0
38.0
47.0
33.0
30.0
28.0
41.0
Res. 3
34.0
33.0
' / //'* '/
38.0
43.0
48.0
32.0
41.0
40.0
50.0
37.0
56.0
46.0
41.0
' ' ' '
/
49.0
37.0
50.0
58.0
44.0
43.0
f ff
44.0
"-"-
42.0
'"?,' ,%'&'
19.0
47.0
31.0
f'Jff &
-------
167
19 EMSL-LV Intercomparison Study: Gross Alpha-Beta in Water, 15-May-1992
Gross Beta
Lab
QZ
R
RB
RD
RE
RF
RG
EH
RI
RJ
EH
RM
RN
RQ
RR
RS
RU
RV
RZ
S
SA
sc
SD
SP
SG
SI
SL
SM
SN.
SO
SR
ss
ST
su
sx
sz
T
TA
TO
TE
TO
TH
TI
Res. 1
45.0
51.0
54.0
54.0
51.0
31.0
>
22.0
51.0
49-0
44.0
40.0
24.0
40.0
36.0
51.0
- - 9&0"""
46.0
37.0
f
48.0
51.0
33.0
39.0
37.0
50.0
46.0
43.0
44.0
39.0
26.0
44.0
46.0
43.0
68.0
35.0
40.0
Res. 2
43.0
52.0
57.0
50.0
53.0
37.0
23.0
57.0
46.0
43.0
40.0
25.0
47.0
36.0
54.0
96.0
49.0
40.0
44.0
52.0
36.0
41.0
39.0
50.0
48.0
44.0
42.0
35.0
33.0
47.0
45.0
47.0
66.0
34.0
42.0
Res. 3
45.0
53.0
58.0
48.0
45.0
33.0
22.0
51.0
49.0
43.0
40.0
24.0
42.0
39.0
- '
55.0
90,0
48.0
42.0
" *- "
45.0
51.0
32.0
32.0
37.0
50.0
50.0
44.0
45.0
35.0
24.0
44.0
44.0
49.0
,.
$8.0
32.0
45.0
s No data submitted
0 s
Insufficient
data
X 3
Exper.
Sigma
1.15
1.00
2.08
3.06
4.16
3.06
0.58
3.46
'
1.73
0.58
0.00
0.58
'
3.61
1.73
2.08
- 'tJI -
1.53
2.52
M
2.08
0.58
2.08
4.73
1.15
0.00
2.00
0.58
1.53
2.31
4.73
1.73
1.00
3.06
..
0,00
f
1.53
2.52
Rng anal
(R + SR)
0.236
0.236
0.473
0.709
0.945
0.709
_.
0.118
0.709
0.354
0.118
0.000
0.118
0.827
0.354
0.473
0,709
0.354
0.591
/
0.473
0.118
0.473
1.120
0.236
0.000
0.473
0.118
0.354
0.473
1.120
0.354
0.236
0.709
0.000
0.354
0.591
Normalized deviation
Average
44.33
52.00
56.33
50.67
49.67
33.67
,
22.33
53.00
48.00
43.33
40.00
24.33
/
43.00
37.00
'
53.33
$Mff
47.67
39.67
. .V .V ff f
45.67
51.33
33.67
37.33
37.67
50.00
48.00
43.67
43.67
36.33
27.67
45.00
45.00
46.33
68,00
33.67
42.33
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
0.53
3.19
4.69
2.73
2.38
-
-3.16
,
-7.09
3.54
1.80
0.19
-0.97
-6.39
0.07
-2.01
,
3.65
ItXk
1.69
-1.08
1.00
2.96
-3.16
-1.89
-1.78
2.50
1.80
0.30
0.30
-2.24
-5.24
0.77
0.77
1.23
6.7$
-3.16
-0.16
IT s Above
Jl 3 Below
0.12
2.77
4.27 IT
2.31
1.96
*
-3.58 ' U
*
-7.51 1
3.12 IT
«
1.39
-0.23
-1.39
-6.81 U
«
-0.35
-2.42
*
3.23 It
17*21 X :
1.27
-1.50
«
0.58
2.54
-3.58 U.
-2.31
-2.19
2.08
1.39
-0.12
-0.12
-2.66
-5.66 li
0.35
0.35
0.81
»
8.31 x
*
-3.58 11
-0.58
control limit
control limit
-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992 17
Gross Beta
Lab Res. 1 Res. 2
-TJBt//; ' '/"K'^V
TL 40.0 43.0
TM 57.0 54.0
U 39.0 39.0
W 48.0 43.0
2t - - ' *' /''
Y 38.0 38.0
Z 36&0 -, $07.0
Exper. Rng anal
Res. 3 Sigma (R + SR)
43.0 1.73 0.354
56.0 1.53 0.354
38.0 0.58 0.118
45.0 2.52 0.591
'f ff* f V ff , ' ffff
38.0 0.00 0.000
* ' awM> '..'.- . mat 43,373 .
Normalized deviation
Average (grand-avg) (known)
42.00 -0.27 -0.69
55.67 4.46 4.04
38.67 -1.43 -1.85
45.33 0.88 0.46
' ,' ,' ''£" ' , '''*>,
38.00 -1.66 -2.08
39133 130.74 120,32
/19
Tag
-*
IT
x
Data sorted by Laboratory Average
Average Tag
6.00 x
14.67 x
19.67 U
20.33 U
22.33 U
22.33 U
24.33 U
27.67 U
28.00 U
28.33 U
29.67 U
30.00 U
30.33 11
31.00 U
31.33 U
32.33 11
33.33 U
33.67 11
33.67 li
33.67 11
34.00 U
34.67 11
34.67 li
34.67 11
35.00 1J. .
35.00 li
36.00
36.00
36.33
36.33
36.67
36.67
37.00
37.00
s No data submitted
0 s Insufficient data
Lab
FJ
KC
GJ
PQ
RI
BW
RR
SX
FZ
LS
QW
QU
MX
CX
PV
'NE
LG
TH
SL
RG
NG
QT
QK
QC
NO
CO
NI
FU
su
MS
DG
AZ
RV
OY
Average Tag
37.33
37.33
37.67
37.67
38.00
38.00
38.33
38.67
38.67
38.67
39.00
39.33
39.67
39.67
39.67
40.00
40.00
40.00
40.00
40.33
40.33
40.33
40.67
41.00
41.00
41.00
41.00
41.33
41.33
41.33
42.00
42.00
42.00
42.00
TAG SYMBOLS
Lab
SM
QP
SN
AE
Y
Q
OA
U
QM
QA
MQ
BN
SD
MY
IU
RQ
ME
HP
BL
FP
BK
AU
MA
FN
DZ
AP
AB
PB
JP
H>
TL
LF
LE
EB
Average Tag
42.00
42.00
42.33
42.33
42.33
42.33
42.33
42.67
42.67
42.67
43.00
43.00
43.00
43.00
43.00
43.00
43.00
43.00
43.33
43.33
43.33
43.33
43.33
43.33
43.67
43.67
43.67
43.67
43.67
44.00
44.00
44.00
44.00
44.33
IT a Above control
x s Determined to be an outlier . * U a Below control
Lab
C
BG
TI
QX
EA
BM
AO
NP
K
JG
RU
OF
NT
NJ
M
J
I
AN
RN
QJ
GT
FL
DH
DE
ST
ss
KH
DM
AW
EH
E
CS
BC
QZ
limit
limit
-------
18 / 19 EMSL-LV Intel-comparison Study:
Gross Beta
Gross Alpha-Beta in Water, 15-May-1992
Data sorted by Laboratory Average
Average Tag
44.33
44.33
44.33
44.33
44.33
44.33
44.33
44.67
44.67
44.67
44.67
44.67
45.00
45.00
45.00
45.00
45.00
45.00
45.00
45.33
45.33
45.33
45.33
45.33
45.33
45.33
45.67
45.67
45.67
% Frequency
Lab
LL
KZ
HH
FF
EO
DT
A
PA
LA
JS
GE
CJ
T
SZ
PM
PG
JM
JH
AR
w
HK
HI
DR
DD
BH
BB
SG
OE
NB
Average
45.67
45.67
45.67
45.67
46.00
46.00
. 46.00
46.00
46.00
46.33
46.33
46.33
47.00
47.00
47.00
47.33
47.33
47.67
47.67
47.67
48.00
48.00
48.00
48.00
48.33
48.67
49.00
49.00
49.00
49.33
Tag Lab
FE
DX
CP
AF
PR
LT
JN
GZ
CA
TA
QQ
AL
D
BA
AJ
CK
AK
SC
N
DO
SR
RM
MV
HL
NK
CE
O
1C
EL
DB
Average
49.67
49.67
49.67
49.67
50.00
50.00
50.33
50.33
50.67
50.67
51.00
51.33
51.67
52.00
52.00
53.00
53.00
53.33
53.67
54.00
54.67
55.00
55.67
56.33
57.00
59.67
68.00
84.33
93.67
391.33
distribution of responding labs(expected prec. vs known
Tag
1T
tr
tr
tr
IT
tr
tr
tr
tr
tr
IT
X
X
X
X
value)
Lab
RE
OZ
HE
CQ
SO
NA
LR
EW
RD
AI
OS
SI
DS
R
L
RJ
HY
S
OB
P
BI
IE
TM
RB
BO
ES
TE
NF
SA
Z
° -6 T I
s No data submitted
0 = Insufficient data
. . .........I 1
I T
exp. prec. ~2
TAG
lllTlll.T....f ..
kno°wn +2 e*P-Prec-
value
SYMBOLS tT
x s Determined to be an outlier #
74
s Above control
s Below control
S8
+6
limit
limit
-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 15-May-1992 19 / 19
Gross Beta
% Frequency distribution of responding labs(std. dev. vs mean value)
*T "T T mrmmm
-* ~4 std. dev. -2 ^ +2 8td. dev.
mean
value
------- |