rxEPA
United States
Environmental Protection
Agency
Environmental Monitoring
Systems Laboratory
P.O. Box 93478
Las Vegas NV 89193-3478
EPA 600/R-93/007a
January 1993
Research and Development
Performance Evaluation-A
Intercomparison Study
A Statistical Evaluation of the
October 20,1992 Data
5168GR92NRD-A
-------
Performance Evaluation-A
Intercomparison Study
October 20, 1992
Environmental Protection Agency
Environmental Monitoring Systems Laboratory
Las Vegas, Nevada
-------
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
OFFICE OF RESEARCH AND DEVELOPMENT
ENVIRONMENTAL MONITORING SYSTEMS LABORATORY-LAS VEGAS
P.O. BOX 93478
LAS VEGAS, NEVADA 89193-3478
(702/798-2100)
Dear Participant,
Enclosed are the results of the Nuclear Radiation Assessment Division (EMSL-LV)
Intercomparison Study for Performance Evaluation-A; October 20, 1992.
The Known value for each analysis was determined by gravimetric methods,
checked by chemical analyses performed by EMSL-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
Intercomparison Program, and can be found in the Environmental Radioactivity
Laboratory Intercomparison 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 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 has been approved for publication as
an EPA document.
-------
EMSL-LV Intercomparison Study: Performance Evaluation-A, 20-Oct-1992 1/31
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
thซ 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
chiirts. 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.
-------
2/31 EMSL-LV Intercomparison Study: Performance Evaluation-A, 20-Oct-1992
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 Laboratory Intercomparison Studies Program information brochure
[Draft Revision of EPA-600/4-81-004], available from Frank Novielli, EMSL-LV, 702/798-2159.
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-A, 20-Oct-1992 3/31
Gross Alpha Statistical Summary 209 Participants
The known value of this nuclide is 29.0 pCi/1 with an expected precision of 7.0; the control limits
are 16.9 to 41.1; the warning regions are 16.9 to 20.9 and 37.1 to 41.1
51 (24.4 %) Failed to respond -,
5(2.4 %) Outliers '
5(2.4 %) Out of control '
but not an outlier
Statistic
121(57.9 %) Within all limits
Respondents
- 27(12.9 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
30.19
17.39
302.24
57.59
4.09
0.07
28.17
-2.87
-0.05
Grand Avg 28.42
6.07
36.87
21.37
-2.01
-0.10
28.00
-3.45
-0.16
1O(6.3 %) More than 3 norm. S.D.
27(17.1 %) Between 2 and 3 norm. S.D
.80(50.6 %) Within 1 norm. S.D.
t
of known value
n 1 and 2 norm. S.D.
-------
4/31 EM8L-LV Intercomparison
Study: Performance Evaluation-A, 20-Oct-1992
Gross Alpha
Lab
A
AE
AF
AI
AJ
AK
AL
AO
AP
AR
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CO
CQ
CS
D
DB
DD
DE
Itt
s ;
nrtt '*'
A^*4 *
DM
DO
DS
DT
DZ
E
Res. 1
24.0
24.0
33.0
39.0
37.0
28.0
25.0
30.0
29.0
31.0
26.0
28.0
21.0
30.0
33.0
70.0
28.0
22.0
' '' C,- r'/.
36.0
.. '",-." ^ s "*' " '/?
21.0
31.0
33.0
22.0
25.0
27.0
25.0
24.0
25.0
17.0
22.0
25.0
39.0
25.0
19.0
35.0
/ '"' '""->f^*^f^f
-. ** f* " tf "" * MS '/v-y
r . ;.'-. f ; ''P-"^. '/* 'ฃ
s ^ f J ^ ^'"f ,S>A
\:,.^,:^^
^ '<*'**> ^^-3
21.0
33.0
25.0
30.0
Res. 2
24.0
25.0
30.0
39.0
36.0
28.0
29.0
34.0
29.0
30.0
32.0
28.0
21.0
31.0
34.0
;eo.o:
29.0
23.0
'- '-- "- ",-,' -
35.0
-,"> "!.~" '-~', >-\i--'
20.0
33.0
23.0
23.0
27.0
29.0
28.0
32.0
24.0
17.0
24.0
26.0
41.0
26.0
21.0
35.0
r^;^;^^
'.' * f '' S ''' "*' ' *'$
''/-.A, -. " y ff f' S^'
'ftC^' t ""v /'ff ^ *'*''
f'4,^:V'-%> ;4
l!|i Y*&ฃ. 14
21.0
31.0
27.0
31.0
Res. 3
24.0
29.0
28.0
39.0
40.0
28.0
27.0
36.0
32.0
28.0
33.0
28.0
26.0
31.0
33.0
48V0
30.0
24.0
35.0
> ' ~ " ' r" "..
20.0
34.0
32.0
25.0
22.0
23.0
32.0
26.0
26.0
17.0
26.0
26.0
40.0
26.0
19.0
36.0
' ^ ^v^i""*^'
't' J. '"' ' ^ t s'
'/ j^f^'"" '$ *""' ""
*' "'"'" - ''
4M:f^^:
vi?^Ji &$
22.0
30.0
26.0
30.0
3 No data submitted
0 3
Insufficient
data
X 3
Exper.
Sigma
0.00
2.65
2.52
0.00
2.08
0.00
2.00
3.06
1.73
1.53
3.79
0.00
2.89
0.58
0.58
12,17
1.00
1.00
0.58
0.58
1.53
5.51
1.53
2.52
3.06
3.51
4.16
1.00
0.00
2.00
0.58
1.00
0.58
1.15
0.58
"'''-,"
&> . -. ,.
^f 'ft"- ' ~" *" "
4 ' ^'-^ ' '' ,
: ป*< ,'" ''
>&';Y>>^;"; -
0.58
1.53
1.00
0.58
Rng anal
(R + SR)
0.000
0.422
0.422
0.000
0.338
0.000
0.338
0.506
0.253
0.253
0.591
0.000
0.422
0.084
0.084
2.631
0.169
0.169
0.084
0.084
0.253
0.844
0.253
0.422
0.506
0.591
0.675
0.169
0.000
0.338
0.084
0.169
0.084
0.169
0.084
*
0.084
0.253
0.169
0.084
Normalized deviation
Average
24.00
26.00
30.33
39.00
37.67
28.00
27.00
33.33
30.00
29.67
30.33
28.00
22.67
30.67
33.33
56:oo
29.00
23.00
35.33
i
20.33
32.67
29.33
23.33
24.67
26.33
28.33
27.33
25.00
17.00
24.00
25.67
40.00
25.67
19.67
35.33
: '*''''
'
\t \ \-
>"- ?- '. '{"'>< ?:
21.33
31.33
26.00
30.33
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
-1.09
-0.60
0.47
2.62
2.29
-0.10
-0.35
1.22
0.39
0.31
0.47
-0.10
-1.42
0.56
1.22
6.82
0.14
-1.34
1.71
-2.00
1.05
0.23
-1.26
-0.93
-0.52
-0.02
-0.27
-0.85
-2.83
-1.09
-0.68
2.87
-0.68
-2.17
1.71
' " : f *
J ' '' f
-. ' ' ' ff j
,"
-------
EM8L-LV Intel-comparison Study: Performance
Evaluation-A, 20-Oct-1992 5/31
Gross Alpha
Lab
EB
EH
--.EL\;
Res. I
35.0
35.0
- , ,- :x V\;
EO 36.0
EV 35.0
FX
:-FE>'
FF
FJ
HFItv
FL
FN
FU
:\FW^
FZ
^GB^
--'Gift'
GQ
GT
GZ
HH
m
HK
HL
HN
HP
HU
HY
J_
."lA;-
1C
m
IE
- IU ;
J
JE
JG
rซJHt
JN
JQ
JS
< jrr^
JY
K
,s ซ -s\.-\ ^^ --,-
^^"iV^V^ViC
29 "6
21.0
|l;::$ 3JBfJ$
33.0
34.0
30.0
*Jv3$tf " \%
42.0
22.0
32.0
\'' -~ ' ' :- -'1*'" - \ . '
,1__34.0^
29.0
x*.\'^
fOVvV"-"'
29.0
30.0
"vJ7 <&$
26.0
39.0
31.0
^l&O-O"'''
__ 32.0_
>r^!!?SF'"-
- , v^"^4 ^-''t'^'"1 '\ ^ --
30.0
17.0
26.0
28.0
25.0
33.0
43.0
24.0
26.0
39.0
26.0
22.0
^r'-.rr-j??^,^
38.0
24.0
34.0
;\V^'Y'>S-S'
27.0
26.0
JJ3.0
r^^TliLb''
19.0
29.0
20.0
^Sff.^K;^-'
29.0
34.0
s No data submitted
0 B
Insufficient
data
x =
Exper.
Sigma
0.00
1.53
2.00
4.58
-,-
0.58
4.73
1.00
3.51
2.52
0.58
5.77
8.14
'"'*' ^ v i " \
0.00
3.06
0.58
3.06
2.00
0.58
0.00
2.65
0.00
0.00
1.00
1.00
V- '
2.31
1.15
1.00
,,,
1.15
3.51
2.00
1.53
1.73
2.65
1.53
V *:.,y ; -, "
0.58
5.51
Rng anal
(R + SR)
0.000
0.253
,
0.338
0.759
0.084
0.759
0.169
0.591
0.422
0.084
0.844
1.506
0.000
0.506
0.084
0.506
0.338
0.084
0.000
0.422
0.000
0.000
0.169
0.169
0.338
0.169
0.169
0.169
0.591
0.338
0.253
0.253
0.422
0.253
"" N " "%
0.084
0.844
Normalized deviation
Average
35.00
33.33
34.00
34.00
29.33
24.67
7.00
29.33
36.33
30.33
223.33
35.67
X-?\i*' %/
30.00
20.33
26.67
25.33
27.00
32.33
43.00
22.00
26.00
39.00
25.00
23.00
'v-v;~ :
39.33
22.67
33.00
' " *
27.67
22.33
31.00
..-,' -61:33'
21.00
26.00
19.67
" ,,-tS-7\^-- "'
28.67
30.33
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
1.63
1.22
-
1.38
1.38
x
0.23
-0.93
-5:30
0.23
1.96
0.47
"! " 48:23 , ' "
^1.79
'--V;V/7:'' _,>\-
-tv-'--' -- ,- -
0.39
-2.00
-0.43
-0.76
-0.35
0.97
3.61
-1.59
-0.60
2.62
-0.85
-1.34
: : '- *-*,-
2.70
-1.42
1.13
\ " f
-0.19
-1.51
0.64
--'' ---;:;8ll4 ---"'
-1.84
-0.60
-2.17
-Y^T""--:, '"
0.06
0.47
It = Above
& = Below
1.48
1.07
1.24
1.24
"
0.08
-1.07
-5.44 x
.0.08
1.81
0.33
48.09 x
1.65
/ ''
0.25
-2.14
-0.58
-0.91 '
-0.49
0.82
3.46 ft
-1.73
-0.74
2.47
-0.99
-1.48
--
2.56
-1.57
0.99
'
-0.33
-1.65
0.49
8.00 ซ x
-1.98
-0.74
-2.31
. .
-0.08
0.33
control limit
control limit
-------
6/31
EMSL-LV Intercomparison Study: Performance
Evaluation-A, 20-Oct-1992
Gross Alpha
Lab
. KE
KT
KX
KZ
L
LE
LF
LG
LM
LR
LT
M
MA y
ME
MNx;
MO (
>MP/y
MQ
MS
MV
MY ^y
>->
N'
NA
.NO"-"?
NH
NJ
NK
NO
NT
NZ
O
OE
OF
OK,'; :>
bLv.y
OM
OS
OX
OY
oz r r
p
PA
PB
PC
PE
No
Res. 1
50.0
29.0
27.0
31.0
27.0
22.0
25.0
- , '- V*
26.0
24.0
25.0
**;**- >.'
37.0
" -\ N -.' "" \
\~ -*,>;. \?
21.0
18.0
28.0
-;;r;-;:r V"/
^x \ ,
28.0
22.0
27.0
31.0
22.0
36.0
31.0
24.0
- "78&X
. ;^;>: yy
,;,ป?;;<''"' '-'
,'-\," *'*', "'!
31.0
20.0
42.0
25.0
18.0
35.0
, - - .'
Res. 2
49.0
30.0
31.0
32.0
30.0
21.0
28.0
-V -:" o; ;
21.0
26.0
26.0
" ,: " t.s',,>- '
32.0
'.;. _,-v :f c
'<? ',"''' "\ *
rS"v\: -T
22.0
19.0
_33.0^
"' ^ ,; X 5"
* i *" .,'
29.0
' 'ฃ ;\:s*;V; ";-
19.0
25.0
31.0
23.0
36.0
\\f ;~;r
33.0
25.0
^T/.tjis^
;,; t^^jy*
*' ' ff"ฃ&V "V'J
^*1?4^
30.0
18.0
48.0
" i
29.0
20.0
37.0
- \ ;' '
, \
Res. 3
47.0
30.0
31.0
32.0
30.0
19.0
26.0
" $
23.0
25.0
25.0
* 'V;'^-- -
34.0
h - " " - ^ '' /;
"~>y>; v'^ ^
'*,:\!"c^'~;$
22.0
20.0
30.0
Y:\-v**; '?' ^
^ ''/'XN % '
J^v,JO.Om
"'"" " ,'*-', - ',
19.0
30.0
29.0
21.0
36.0
'**''''', -t^'-'S
34.0
26.0
}iy;;,T^6V
fS^^rftK
f^S^K-^v!
S^if^1^
29.0
19.0
v42.0;v
,'' J'\";j^
39.0
12.0
36.0
~r.y .-;':;/> -
" ^ '' ^ "" ^ ' "
data submitted
0 = Insufficient
data
X 3
Exper.
Sigma
1.53
0.58
2.31
0.58
1.73
1.53
1.53
2.52
1.00
0.58
2.52
*-/-..;.
yyy
^; ,; --
0.58
1.00
2.52
","'" ' ':
^l.W
"' '"-''' " ' '
1.73
2.52
1.15
1.00
0.00
5?-"*l
1.53
1.00
i%;"yi.53
- i f* <
^5'-: , '" -' '
^!py> > %
1.00
1.00
3.46
-.' "
7.21
4.16
1.00
, > _,
Rng anal
(R + SR)
0.253
0.084
0.338
0.084
0.253
0.253
0.253
0.422
0.169
0.084
r
0.422
0.084
0.169
0.422
0.169
0.253
0.422
0.169
0.169
0.000
0.253
0.169
0.253
0.169
0.169
0.506
1.345
0.675
0.169
Average
48.67
29.67
29.67
31.67
29.00
20.67
26.33
23.33
25.00
25.33
34.33
21.67
19.00
30.33
29.00
v % ' ^ "" "e
20.00
27.33
30.33
22.00
36.00
32.67
25.00
73.67
,
30.00
19.00
44.00
31.00
16.67
36.00
f
TAG SYMBOLS
Determined
to be an outlier
Normalized deviation
(grand-avg) (known) Tag
5.01
0.31
0.31
0.80
0.14
-1.92
-0.52
- "-;-,, -,
,;: ^y?y
-1.26
-0.85
-0.76
'=:" '-'
1.46
-1.67
-2.33
0.47
* ," '' ' ;
<
0.14
-2.08
-0.27
0.47
-1.59
1.88
1.05
-0.85
11.20
^ ' f ''-.'-.', s
/ . .'.."v.!
0.39
-2.33
3.86
0.64
-2.91
1.88
IT s Above
U 3 Below
4.87 tT
0.16
0.16
0.66
0.00
-2.06
-0.66
,^y -% ;
-1.40
-0.99
-0.91
'\ '- -
1.32
' ,
/ ' ; '
-1.81
-2.47
0.33
'v" '
0.00
-'';'" -
-2.23
-0.41
0.33
-1.73
1.73
'
0.91
-0.99
11.05 x
, ' -
;' ""-1 '!-
0.25
-2.47
3.71 It
0.49
-3.05 U
1.73
-, '"
control limit
control limit
i
'
-------
EMSL-LV Intercomparison
Gross Alpha
Lab Res. 1
PG
PL
PM
PP
PQ
PR
PT
PV
PW
'TW%y
Jfc I ''"'"'
Q
QC
QK
QP
QQ
QT
QU
QW
QX
QZ
RC
RD
RE
RF
RG
RJ
RK
RM
RN
RO
RP
1 RR
RT
RU:
RV
RZ
s
sc
SD
SF
SG
SI
SL
SN
SO
28.0
^ V J'" ' -/:
24.0
V ' V- '' 's '
22.0
\v . \
38.0
25.0
36.0
>\ ""^ ; ,. s v _ \ ^
21.0
32.0
^ \ % V~%
24.0
36.0
24.0
38.0
39.0
19.0
25.0
24.0
36.0
47.0
32.0
20.0
34.0
21.0
37.0
27.0
f'^\^l^^
s ^'^T'* \ .."-
"l^"^*^*/ ?*'"
25*0
v^\V':pง
33.0
27.0
27.0
36.0
31.0
28.0
36.0
28.0
24.0
18.0
Res. 2 Res. 3
28.0
A __ป,
27.0
22.0
37.0
36.0
35.0
~vY '" -.0;: ?" '
20.0
27.0
25.0
36.0
15.0
42.0
41.0
19.0
26.0
25.0
38.0
39.0
30.0
20.0
36.0
21.0
31.0
,. .,j?q.p.,,...ซ
\::^^V^A^^
/Y-'/-'-V><-'ซl
!~i\,:; fi \ j'"--*^--/
23.0
<^^^7^f"\
32.0
29.0
28.0
34.0
30.0
26.0
31.0
24.0
31.0
''"'
18.0
28.0
24.0
19.0
37.0
34.0
34.0
19.0
34.0
28.0
36.0
20.0
40.0
40.0
20.0
23.0
26.0
50.0
35.0
32.0
21.0
35.0
20.0
34.0
28.0
T\?'\
\-?s^ '5"v
**^ ^
24.0
'-3. ^ """ .* %"
38.0
31.0
29.0
32.0
26.0
26.0
31.0
23.0
26.0
22.0
3 No data submitted
0 3
Insufficient
data
X 3
Study: Performance Evaluation-A, 20-Oct-1992 7/31
Exper.
Sigma
0.00
1.73
1.73
0.58
5.86
1.00
1.00
3.61
2.J8
0.00
4.51
2.00
1.00
0.58
1.53
1.00
7.57
6.11
1.15
0.58
1.00
0.58
3.00
1.53
1.00
3.21
2.00
1.00
2.00
2.65
1.15
2.89
2.65
3.61
2.31
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.000
0.253
0.253
0.084
0.928
0.169
0.169
0.591
0.338
0.000
0.759
0.338
0.169
0.084
0.253
0.169
1.345
1.024
0.169
0.084
0.169
0.084
0.506
0.253
0.169
0.506
0.338
0.169
0.338
0.422
0.169
0.422
0.422
0.591
0.338
28.00
25.00
21.00
37.33
31.67
35.00
.
20.00
31.00
25.67
36.00
19.67
40.00
40.00
19.33
24.67
25.00
41.33
40.33
31.33
20.33
35.00
20.67
34.00-
28.33
24.00
34.33
29.00
28.00
34.00
29.00
26.67
32.67
25.00
27.00
19.33
TAG SYMBOLS
Determined
to be an
outlier
-0.10
-0.85
-1.84
2.21
0.80
1.63
-2.08
0.64
-0.68
1.88
-2.17
2.87
2.87
-2.25
-0.93
-0.85
3.20
2.95
0.72
-2.00
1.63
-1.92
1.38
-0.02
-1.09
1.46
0.14
-0.10
1.38
0.14
-0.43
1.05
-0.85
-0.35
-2.25
ft s Above
li = Below
-0.25
-',' '
-0.99
ซ
-1.98
- v'
2.06
0.66
1.48
' , .
-2.23
0.49
-0.82
1.73
-2.31
2.72
2.72
-2.39
-1.07
-0.99
3.05 ' ft
2.80
0.58
-2.14
1.48
-2.06
1.24
-0.16
-1.24
1.32
0.00
-0.25
1.24
0.00
-0.58
0.91
-0.99
-0.49
-2.39
control limit
control limit
-------
8/31
EMSL-LV Intercomparison Study: Performance
Gross Alpha
Lab Res. 1
SR
ss
sw
sx
sz
T
TA
TE
TG
TH
TI
TK
TL
TM
TN
TP
TQ
TS ....."
TT; ! . ,
TV" , ,_ "-
TV'.' -
TY
TZ"""
u
UA
W
X
Average
7.00
16.67
17.00
18.33
18.67
19.00
19.00
19.33
19.33
19.67
19.67
19.67
20.00
s No
32.0
21.0
27.0
29.0
25.0
20.0
23.0
24.0
33.0
19.0
25.0
17.0
35.0
32.0
A ^
? \-:^
** t * "" . *
'*** t .- < *-^ ''"
17.0
", '}^:~ '"
25.0
28.0
26.0
33.0
Res. 2
31.0
18.0
30.0
28.0
26.0
30.0
23.0
23.0
27.0
18.0
25.0
19.0
36.0
32.0
"'",'> ,* ' ''
^v ft _ ' -;
r^"*'" " *,
;. * '',A%X 'V
24.0
," "~r ^
24.0
30.0
25.0
33.0
Tag
X
U
Res. 3
33.0
21.0
29.0
25.0
29.0
28.0
29.0
25.0
26.0
18.0
25.0
20.0
36.0
31.0
/';- " - - _ ';
- _ - ^,,v^
^ ^ '-.* ^ ' i
'O^s '-''.'*--
25.0
26.0
26.0
26.0
30.0
Data
Lab
FK
PA
CO
TL
TN
OX
MS
SO
QX
QT
JS
DD
SS
Exper.
Sigma
1.00
1.73
1.53
2.08
2.08
5.29
3.46
1.00
3.79
0.58
0.00
1.53
0.58
0.58
' *-' ?.;
" ;-;, ' -/
4.36
1.00
2.00
0.58
1.73
Rnganal
(R + SR)
0.169
0.253
0.253
0.338
0.338
0.844
0.506
0.169
0.591
'
0.084
0.000
0.253
0.084
0.084
0.675
0.169
0.338
0.084
0.253
Evaluation-A,
Average
32.00
20.00
28.67
27.33
26.67
(
26.00
25.00
24.00
28.67
18.33
25.00
18.67
35.67
31.67
, , '<
22.00
25.00
28.00
25.67
32.00
20-Oct-1992
Normalized deviation
(grand-avg) (known)
0.89
-2.08
/' ,':.,' '-'"V.-f
0.06
-0.27
-0.43
-0.60
-0.85
-1.09
0.06
-2.50
-0.85
-2.41
1.79
0.80
-1.59
-0.85
-0.10
,0.68
0.89
0.74
-2.23
">O -- \
-0.08
-0.41
-0.58
^i V
-0.74
-0.99
-1.24
-0.08
-2.64
-0.99
-2.56
1.65
0.66
-1.73
-0.99
-0.25
-0.82
0.74
N
Tag
:, s
; V-
'' ป-
*
'' .:
v
,ป
"
' '
sorted by Laboratory Average
Average
data submitted
0 = Insufficient
data
X
20.00
20.00
20.33
20.33
20.33
20.67
20.67
21.00
21.00
21.33
21.67
22.00
22.00
Tag
Lab Average
Q
NH
RG
GT
BO
RK
LE
PQ
JN
DS
MQ
TY
NO
22.00
22.33
22.67
22.67
23.00
23.00
23.33
23.33
24.00
24.00
24.00
24.00
24.67
TAG SYMBOLS
s Determined to be an outlier
Tag
11 3 Above
11 s Below
control
control
Lab
HN
JE
ID
AZ
I
BK
LR
C
TH
RT
CQ
A
QZ
limit
limit
-------
EMSL-LV Intercomparison Study: Performance Evaluation-A,
Gross Alpha
20.Oct.1992 9 / 31 I
Data sorted by Laboratory Average
Average Tag
24.67
24.67
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.00
25.33
25.33
25.67
25.67
25.67
25.67
26.00
26.00
26.00
26.00
26.00
26,33
26.33
26.67
26.67
26.67
27,00
27,00
27,00
27.33
27.33
27.33
27,67
28.00
28.00
28,00
2800
= No data submitted
0 = Insufficient data
Lab
FJ
CA
U
TM
TG
SI
RC
PM
OE
LT
HY
CK
M
HH
W
QP
DB
CS
TE
JQ
HP
DZ
AE
LF
CE
T
SF
GZ
SL
HI
AL
SZ
NJ
CJ
J
UA
S
PG
AW
Average Tag
28.00
28.33
28.33
28.67
28.67
28.67
29.00
29.00
29.00
29.00
29.00
29.33
29.33
29.33
29.67
29.67
29.67
30.00
30.00
30.00
30.33
30.33
30.33
30.33
30.33
30.33
30.33
30.67
31.00
31.00
31.00
31.33
3V33
31.67
31.67
31.67
32.00
32.00
32.33
32.67
TAG SYMBOLS
x s Determined to be an
Lab
AK
RN
CG
TI
SX
JY
SD
RZ
NA
L
BH
FL
FF
BW
KX
KT
AR
OS
GQ
AP
NK
MV
K
FU
E
AU
AF
BA
QC
P
JG
RF
DT
TQ
PV
KZ
X
SR
HK
SG
Average
32.67
32.67
33.00
33.33
33.33
33.33
34.00
34.00
34.00
34.00
34.33
34.33
35.00
35.00
35.00
35.33
35.33
35.67
35.67
36.00
36.00
36.00
36.33
37.33
37.67
39.00
39.00
39.33
40.00
40.00
40.00
40.33
41.33
43.00
44.00
48.67
56.00
61.33
73.67
223.33
outlier
Tag Lab
O
BS
IE
EH
BC
AO
SC
RM
EV
EO
RV
ME
RJ
PW
EB
DE
BM
TP
FZ
QQ
PB
NT
FN
PT
AJ
HU
AI
1C
QW
QU
D
RE
IT RD
1T HL
IT OY
IT ' KE
x BG
x JH
x OF
x FW
IT = Above control limit
U = Below control limit
-------
" 10/31 EMSL-LV Intel-comparison Study: Performance Evaluation-A, 20-Oct-1992
Gross Alpha
% responding labs Frequency distribution
10
^6 5 -2 0 +2 +4
Normalized deviation of the mean from the known value
% responding labs Frequency distribution
10-r
O-1r
-4 -2 0 +2+4 +6
Normalized deviation of the mean from the grand average
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-A, 20-Oct-1992 11/31
Radium-226
Statistical Summary
209 Participants
The known value of this iiuclide is 7.4 pCi/1 with an expected precision of 1.1; the control limits
are 5.5 to 9.3; the warning regions are 5.5 to 6.1 and 8.7 to 9.3
112(53.6 %) Failed to respond .
5(2.4 %) Outliers
12(5.7 %) Out of control
but not an outlier
Statistic
, 75(35.9 %) Within all limits
Respondents
** 5(2.4 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
9.54
11.72
137.42
122.88
28.92
0.18
7.37
-0.45
0.00
Grand Avg 7.49
1.16
1.34
15.46
1.19
0.08
7.33
-0.90
-0.06
17(17.5 %) More than 3 norm. S.D. ,
5(5.2 %) Between 2 and 3 norm. S.D
48(49.5 %) Within 1 norm. S.D.
of known value
m 1 and 2 norm. S.D.
-------
127
31 EMSL-LV Intercomparison Study: Performance Evaluation-A, 20-Oct-1992
Radium-226
Lab
A
AE
AF
AI
AJ
AK
AL
AO
AP
AK
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CO
CQ
cs
0
DB
DD
DE
DJ
DL
T>M
- *ปllป
DO
DS
DT
DZ
E
Res. 1 Res. 2
6.6
6.6
6.7
8.8
11.6
6.9
x
7.0
^\งv'':r.,;
, S ' -/H" Iv-'
7.4
7.0
7.5
7.7
5.6
6.9
7.3
''! ,C *', , **' ,;'-
.?!_ ..
, - f': -V A'<^/ *
6.7
- ">-' : V;;". C/,'-
''v*"'-;; :!'!'ฃ *%-.
8.2
7.3
7.0
6.3
7,0
6.2
' ^ < '' ^ V ' ', " .
,'V;,S^ :;-:;
7.3
',, ' \ป V'vซ
7.1
";> '^, - "--.rv;,
6.6
---'"''^ ,1 ;'-;! 1
-,;:="v'it-'t'-%:"
.', V" -\"X '""! '^'v'"1, *<> \
*" " - x " %\ '._ j.s ^s *%.';"' >
' ^ * % ^ v* * ^ '' '
V-, ' ' '' ' - '*ป >-'
8.0
8.0
6.6
6.8
6.6
6.6
8.0
10.0
6.5
7.1
r"\:--s
%'s' s
6.3
8.0
8.4
7.6
6.6
6.1
6.9
' ' !;-' *'-,.
6.8
>,1?",
7.1
" '--- J
":>?^C'vV-T s
$-.%:$"ฃ
6.9
I?^P,;^ '
6.7
'vT-\VA> X? ';'
6.5
7^v -:i^>^' ":'^
<;^"-'4";?:
,... - < f:^--' k-
~'9,;"'X A " il -
~ --;,;", j ', '',
:';S;-' \ ;
8.1
7.7
6.7
= No data submitted
0 =
Insufficient data
x =
Exper.
Sigma
0.15
0.29
0.06
0.40
0.90
0.26
<
0.06
'' , v
0.82
0.76
0.45
0.06
0.53
0.42
0.35
0.06
0.21
~, , ,
"'-'', "'
0.23
0.21
0.42
0.70
0.68
0.38
Vfftpv.^ M.S ^ ซ
:^: ; \
0.20
-:', ,*' ;
0.35
% ts^y- ,
0.06
r-:lt--,'"-
t - - ,/ x
-'-( V
** ^ '
, ~-y
-'-',
0.06
0.17
0.49
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.161
0.268
0.054
0.430
0.859
0.268
0.054
0.859
0.805
0.483
0.054
0.537
0.430
0.376
0.054
0.215
0.215
0.215
0.430
0.752
0.698
0.376
0.215
0.376
0.054
0.054
0.161
0.483
6.63
6.77
6.67
8.40
10.57
6.80
7.07
S f-- "^ ', v. :
6.50
7.17
7.97
7.67
6.00
6.57
7.27
6.73
X*
6.93
8.07
7.13
7.13
7.03
7.23
6.63
7.10
.. ''% ''"'" ^
6.73
6.53
> -' ' -
\ '",' -'- - ' "-'
8.07
7.80
6.93
TAG SYMBOLS
Determined
to be an
outlier
-1.35
-1.14
-1.29
1.44
s
4.85
-1.08
-0.66
^ __-." ?"' ,
_%, ^ X
-1.56
-0.51
0.75
0.28
-2.34
-1.45
-0.35
-1.19
-0.87
0.91
-0.56
-0.56
-0.72
-0.40
-1.35
. -
-0.61
- - ^ '
-1.19
-1.50
- "',''
0.91
0.49
-0.87
It s Above
li = Below
-1.21
-1.00
-1.15
1.57
^ > * ซ f s * %
4.99 IT
-0.94
^
-0.52
"v-rt"^C . '
, ,-; " ,'
-1.42
-0.37
0.89
0.42
-2.20
-1.31
-0.21
*
-1.05
ป, -
-0.73
- '
,;;
1.05
-0.42
-0.42
-0.58
-0.26
-1.21
'
*
-0.47
-.'- '
-1.05
-1.36 .
\_ \.
: ' , \ฐ '
" '
", ' ' ' **
- - ''
"
1.05
0.63
-0.73
control limit
control limit
-------
EMSL-LV Intel-comparison
RadJium-226
Lab Res. 1
EB
v*jฃ
EO
*yi
5'.'<
FF;:
ฃ
FN
^
, {jjjsj^
oiy
GQ
.??.
s A tงTf **<'
A JDUt:'?-''
HK
HL
HP
HU
HY
I,_,
:^:
7.2 ^
fit'ty
. ,. \ \ \!| s 5%
y>l;ffi)-S'
x s h > "1 "* s \ J" \* ?
7.0_
^f||i
'^-ฃC^^
/Y\xY.\S'l ./,
'_JM,_v
'~?xr
\5i l\ s V """V *"'*'"' ,5. "" ""
^v*1?.X''Vv ^ ^i'-'^'*^
' 7.8
7.3
- V*,*\>''> ', V :Sv ,
8.1
7.1
7.2
^^9.3^ ^
;i^-;fe
6.2
N^-^lg
7^6
9.9
^__i-5,^
,-. ? V ^ > % VV %% S H^ , ^ _..
% $" V ^ X^ ^ "^ X-.V>1'V..->- V
9.6
7.9
4.9
6.9
Res. 2
^ ^ - ^ \ ^ - ; ^
^'^i ^"'x'-'sl^,' ,-,"
7.2
L^x':^^
f T\VS ;'
f;;5^5:0\;vป
- s ,v ^\ ^ ^'"'"'i' s ,-, \
/__7.3
'vi'-^V-i0 ^:l
"\^ir?"^r\"^~ v
/;; ,-""Vr ' ;<"'"
^ll;0_ \
8.1
* ,'; '{^C , \,\,%
7.3
7.7
"" - \> ^- ' o
8.2
7.2
7.2
8.0 ^_
,H \v;-\ivS-\C ;!ฐ^-\"
*J_ 5.7
JI^Hs^
.. ^ ,
8.6
_.^,-|JL._.
9.0
7.9
5.1
6.3
Res. 3
/ ^ 5 5\
f^f"
7.7
l^^.-o
-^b%
v'%' ^" sv v
I8'2
- *>v;~ '"
' f-xf\-<
7.2
8.0
* i -: ,'
7.5
7.9
8.0
7,2
7.9
_ 8.1
'll^1'
6.7
Vxi.W"
7.7
8.1
^7.6
9.8
7.8
4.6
6.2
= No data submitted
0 s
Insufficient
data
x =
Study: Performance Evaluation-
Y
A, 20-Oct-1992 13/31
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
0.29
. "-"' ~-\ ; --/
^..'<'lis::%
0.62\
,- !^ ;
;
0.10
0.10
0.25
0.31
0.10
0.06
0.40
0.72
:; ^ -
0.50
0.10
0.93
0.96
0.42
0.06
0.25
0.38
0.268
-VV.\\:
1:141
0.644
%V '
0.107
0.107
0.268
0.322
0.107
0.054
0.376
0.698
0.537
0.107
0.967
1.039
0.430
0.054
0.268
0.376
^ ' x< "* .. " S^!^ -* -
'''. "V''S ' :'^;:>
7.37
;,^\>>: '-:A15
;-*-:: ' 46^3 ;
. _7.50 ^
" ' * " ^ ' - -- v ^ \ '
VV " "I ^ " *s
' '-- '/; ':
7.10
8.10
- %,-. 5 > % .
7.53
7.63
8.10
7.17
7.43
8.47
";*'" -" '" ;~.
6.20
" v ,-. \
7.70
8.87
8.47
9.47
7.87
4.87
6.47
TAG SYMBOLS
Determined
to be an
outlier
"K~ \-\-\ ,~v,- . <
^- yi^V'V, ,
-0.19
^y >,r-v;/,:>\~
.',- 6Li6,,:>->:^
^-.^ X < "; v
. " ' , ^
0.02
' ' . ซ \' x\
-V >" o v "
-0.61
0.96
0.07
0.23
0.96
-0.51
-0.09
1.54
-V.^>;\- - ซ
-2.03
% v ฃ f
0.33
2.17
1.54
3.11
0.60
-4.13
-1.61
It s Above
& s Below
.;;,: ,,.
: -/ y *'V-
-0.05
:-;\; ;;v:
, '
61.30 x
- - - *
0.16
,, ,
- ซ
y ' ,,
-0.47
i'10 ,
*
0.21
0.37
1.10
-0.37
0.05
1.68
..
-1.89
%-
0.47
2,31
1.68
3.25 ft
0.73
-3.99 $
-1.47
control limit
control limit
-------
14 / 31 EMSL-LV Intel-comparison
Study: Performance
Evaluation-A, 20-Oct-1992
Radium-226
Lab
KB
KT
KX
JMwA
KZ
L
LE
LF
LG
LM
LR
LT
M
MA
ME
MN
MO
MP
MQ
MS
MV
MY
N
WAV
N*
NH
NJ
NK
NO
NT
NZ
O
OE
OF
OK
OL
OM
OS
OX
OY
OZ
P
PA
PB
PC
PE
Res. 1
* * '"'*
'. ," ': '>''
8.3
7.5
-, '/\ >?"'-
7.5
7.2
8.3
' '--"V//;;ป'
v
,; %,^;;:
' '"1 ' '":': ;,
, , ;; '-\ --, . \
"f>V-^,"
"/vH^b
;h;>:= : ^
-"~^^'"r./"'
7.7
11.0
- : '" " \- .''
7.2
6.5
' ' v-S
- vi ' ^'V**r>
^ s' v ^ * ^
9.0
'"- :'t!2J;J
"" ;;', *?>.: ?'~
*:'*",* \*"';,i>'
\ V~f^k4
7.8
6.0
-, - ' ^;'7: ' ,
7.2
' '--'' "'' '"
7.6
20.0
" i -, s
Res. 2 Res. 3
Y;;-, Y.i --CYY -,-'O
, ' ',,_ ' , ~~ ^ "" ' ,
8.3 7.3
7.2 7.0
.Vvr\.,; ---^ r;.'\^ .. -u'-V-
'-: V'5'Y%"- : '', 'V '-"-, \vo.s.
<,,':;/; ' :/; -; ,,' \ ;
-\ I -V - ;- -- - Y%; ,--'
7.2 7.3
8.9 7.9
'%. \>~. - < , / '\
7.7 7.1
-Sv( :,"' \> ;*,':- , /,; %
-"' ( '
V Y'! ' /"' , / /- - '
"!>'V-/S/;YV>V/ Y\
- ',s"v;-' ." v "' \ ' v
Yl^^Y,^^;;^,^; >
%pY ;v-^; Y:;,';|" ;; f ' ;< . ! '
^'V;^A-^Y';XV^!"
|?5;(M^\;;^\ -;^ ;
Y;^?-'-'-iY;--Y' '':" '-':-
6.9 7.2
9.1 7.9
'^ "" """ *"' /". '' "J '-.'''
7.3 7.5
6.1 6.3
Y;^r"^^;v^-F-Y;!
& ? '-/. ^.^ ''^ ' x'% ^'-^;f'
V -^Y!:;-|!fe -! V'S^
9.0 7.4
Yr^ioil^^ io0;^Y
-^^^Jf^dY^
-,iU4^/^ ffX'-i"- *-'iV-
?r, 'Y^^^^ptVr V '/ < Y^
7.7 7.8
6.5 6.4
Y^!!' Y * YYY '"^ '
8.5 8.7
-{.;'' ^ Y Y^>'Y Y Y; '-""
7.4 . 7.8
Y 19.0 l % 19.0 ,
% X" '* " "* ^^ ^S ' ' s
a No data submitted
0 a
Insufficient data x =
Exper.
Sigma
0.58
0.25
"*S ,"
:' Y -V
0.15
0.85
0.60
-;-
* ,' *
'y ~A'
'
v **<
0.40
1.56
0.15
0.20
;Vฃf \
Y^Y''^ , -
YY Y
0.92
YYiee* ,
VYy --
"~
\'~vป' ,
0.06
0.26
-' ', '
0.81
0.20
0.58
Rnganal
(R + SR)
0.537
0.268
j *
0.161
0,913
0.644
0.430
2.266
0.161
0.215
0.859
2.470
0.054
0.268
0.805
0.215
0.537
Normalized deviation
Average
- - _ -
7.97
7.23
7.33
8.00
7.70
, - ' -
!
7.27
9.33
7.33
6.30
8.47
= 110.73
\
7.77
6.30
8.13
7.60
19.33
TAG SYMBOLS
Determined
to be an outlier
(grand-avg)
-. ' " ^ ^
0.75
-0.40
s v ""'
' ' ' ? -', " -
" ' ' ,
-0.24
0.81
0.33
' -' >-
-0.35
2.91
,
-0.24
-1.87
J ' ' ' < < *
1.54
162.57
f"
.:
0.44
-1.87
1.02
'- ' J
0.18
18.65
(known) Tag
*, _ , '>^!V - --'-
' ",,,'"
%
0.89
-0.26
'
", - -"~" - ' ,*.v >
/;- ,' 'V".
,- -' ,:
-- ' -
-0.10
0.94
-- ,'
0.47
,% ' ' ' * -
*
, '
;:; .
:
V V " *
"' '* . ' ป,'
'
.- , ' -'
-0.21
3.04 It
, *
-0.10
-1.73
>
-,-: Y , - * -
'..,. ' ' ," '
1.68
162.71 x
' % ' '
' .' " '
0.58
-1.73
-
1.15
-
0.31
18.79 x
*
ft a Above control limit
li s Below control limit
-------
EMSL-LV Intercomparison
Radium-226
Lab
PG
- PLT
PM
PP
PQ
PR.
PT
PV
PW
: PY
Q
\QC!
QK
QQ
QT
^U,
QX
QZ
RC
".RDJ
RF
RG
}iuS
RM
RN
, -sf;
^RO
-"ijซ^
JttJtTV
;^mi
R$
RV
RZ
S
sc
SD
SF
^SQl
SI
:*SL^
* 8N '
SCK
Res. 1
7.4 _
":;v)\^^-
5.7
^ 6.7 _
-"""-'\ '- ' -rf;-:'
'/vs>V-ป^ *;...* V'x
7.8
6.9
v^vs ; 36i2'7;-v
;)- .y'.-vx.x.-:* :^";
'"^^"7.4^
^^~Jv^7-;?;'^
;0;^;x--f$:^Cl;>
?fc:f^I
4.3
7.6 ^
10.0
7.2
8.1
SS^JSI
10.3
6.3
;SliSP
"Y.g"""
6.6
^^tT^^^^C^^1"
% "? t?ฐ*C* ; ซ"^^^
x?CT A\ ^ ^s >" ~" "- ^i
i!*\\\ ^ vb """I" "^ ^ s\ v"^
:ฅfeฎM
i^Sii
6 A
. 7.4
6.9
7.5
9.6
__7.3^ _
- S^r'vl ' ^'r~' 'r!'
5.0
;s^;:;;^fj;^
^Vs1';?/^ < ^^
l\;^r:Sl?
Res. 2
_6.4
^/{^^\, ^
'*" ~ siaT
7.7
^SXC' '1"^'$ ^^1*$? '
^.^^t^'^X
r^v^-ง\v^? ,
^ \ ^ 0* ^ ^ ''' ^^ ^ "'
iSlllf
^f;.^^;
7.6
7.4
6.9
7.0
9.2
_6.6_
^ ^\i" V V __ v%'%-
"5.3_
W ^ wy<*, vซv-.%^ sv.vvv.vs
,~? ~'V IvV
^y^s
Res. 3
^5.9
Sr^--t?>->:\: -
6.3
ปซ_,.,6:3,.
;'t\'C'v>!/o "
X/^;\\- -f 1 5- ' x -
7.8
6.2
;v-vv4d.8
" "" ^ x ซ , x
'""'"7.9
V-?-- \ -\~ r
\V^;---\:
'-%-!. >S\,-X - ซ
6.3
7.7
10.2
6.8
., . ป, 9:5.
;:v^V?\;xx- ,
9.2
9.0
J>M" ::
9.1
6.9
^^^^^^^^^K1^0 "
^^>^^Y^^Ho,^
^t^'fer^y '^ x%
v^' ^^Xii'V^ "s\SXss "C
1S!S:'
* *^\\*; ^xC1'1 \, "
"7.2
7.3
7.0
7.2
8.2
6.7
tJ: *.'**' - xfe --,-. -
5.0
f^*- -"IT:- 7 v""' "
, " - " ^:" v
,-.X' " v * " \">
s^ *** > v v
s No data submitted
0 s
Insufficient
data
X =
Study: Performance Evaluation-A, 20-Oct-1992 15/31
Exper.
Rnganal
Sigma (R + SR) Average
0.76
0.32
0.21
0.23
0.36
2.36
0.50
1.13
0.26
0.20
0.35
0.71
0.55
1.56
0.62
0.57
" ^ s
0.61
0.06
0.06
0.25
0.72
0.38
0.17
0.805
0.322
0.215
0.215
0.376
3.800
0.537
1.141
0.268
0.215
0.376
0.752
0.591
1.857
0.644
0.591
0.644
0.054
0.054
0.268
0.752
0.376
0.161
6.57
'-''."' V
6.07
6.53^
, "' s -
7.93
6.60
38.80
7.90
" " " ~ -
5.00
7.80
10.20
6.83
8.87
\^ ' '
9.77
8.10
8.60
7.07
" .y^ ^ __ ^- ^j,
, -V "-'
^ \
7.07
7.37
6.93
7.23
9.00
6.87
5.10
/\ \"
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
^-1.45^^
11 "X . XA " VS-L \ >S
s s * * ." \ C"- !-- " s s ,
-2.24
_ _:1.50
>\X ^r^;Xi '" -'
,\- ,4 -\;XV;^ " -,,s';'
0.70
-1.40
49.30
0.65
""""I " ^ \^v
1 " o ^
-3.92
0.49
4.27
-1.03
2.17
t- y - \ -
3.59
0.96
- *-y ' ,'' O -
1.75
-0.66
"i"" ^VAS^-'^^'-^^ V" ^"" ^
--" ^v--x" "- Co 4^T,A
-^ "" *'",* \ s^s A' ""^\^
" ^ " -l \ ;''''' v v
' " " ^ % \ i s
-0.66
-0.19
-0.87
-0.40
2.38
-0.98
-3.76
;,~V, , ,^ - ,.'.ป,
IT = Above
U s Below
-1.31
xs : -*,--
-2.10
-1.36
\ ,\-\- '
~^s>'
0.84
-1.26
49.44 x
0.79
*
-3.78 U
0.63
4.4i tr
-0.89
2.31
' *
3.73 IT
1.10
,
1.89
-0.52
* " ' v
^ " % v
^ ~
, " -" - .
,
-0.52
-0.05
-0.73
-0.26
2.52
-0.84
. ','
-3.62 li
ซ
^
control limit
control limit
-------
16 / 31 EMSL-LV Intercomparison Study: Performance Evaluation-A, 20-Oct-1992
Radium-226
Exper. Rng anal
Normalized deviation
Lab Res. 1 Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known)
SR -? ' " "'" 'Y *' "' '.; vY YVj>iฃ? /$" -, 3*
SS 7.0 7.4
8T \ /-v _ , : Y'Y>; ;
8W - '. ,/ !Y Y Y'/ ' ,.
SZ 7.0 6.8
T 7.2 7.7
TAY--\<, Y' , - \;^;;; =. ,
..:YY ,- - - - ' '>
Y,- Y:,,-. ,./;/-''<', ,-Y-\Y .-
Tag
Y <'
7.0 0.23 0.215 7.13 -0.56 -0.42
- -'-f' :-\ ' ''" - - ">v '"
-*'''"'"' Y, ',. '
;. r Y^"J\ '"/^'*": '^
';,ป
"*"
7.2 0.20 0.215 7.00 -0.77 -0.63
7.6 0.26 0.268 7.50 0.02 0.16
% V ' , ' "
TBS 22>3 21/iY 20,0 l;ie 1.448 21.23 21.64 21.78
TG 10.6 9.2 10.6 0.81 0.752 10.13 4.16 4.30
TH ; '--" . YYY > -: " ;5v>; v "- '-: '
TI 3.4 5.6
*FR ' '''"- " j 'f-*"j * " - ^ ^-v- -' "" :- '
s ..'' v^ ""^^s\ V'% ' ^ ' N'v' ' X'"' --i ' ''^
,>TL': :;;:;Y^YiY^ ,-. ' Y
TM;;"Y: V^^Y 'r-Yvrv-V:' '
TN 10.2 10.0
TQ l^,8;5, 7J.J_,
" t ' f *. J -. -;
;- -'--' ,\ ' * s 'Y ' " > :
' *
X
1T
, * *
4.4 1.10 1.345 4.47 -4.76 -4.62 li
"^ '- \ * ,
'*' 1 ' * , ^
,** s ' '. ' ' , ~ ' ;
VX' - 'V'" *.'-''* ' 5
~ ' .*"'>,'*
** ' ' <. ^ ^ * ^
~ -: * ; Y' . - - "
'" '* * '
9.4 0.42 0.430 9.87 3.74 3.88
tr
8.5 0.35 0.322 8.30 1.28 1.42
TS 12.7 10.3 10.4 1.36 1.550 11.13 5.74 5.88
' rrrn* - ' ~~" ~~-\'~~i^\-'"f ~;"v^x;->; sy~ ,;?; y^ _-;
..Y ; r "- ' ' ',.' > '-; ' Y} Y ' ,---V' '; t , - -;
'':;^'^SYiB-
TZ -' -.* ; Y; v;-: - -
U 8.0 7.5
VA :"' " Y-''-- r-/ป; $< '
W 7.4 7.7
X' *' . * "- , > s, "\% vl>''%
v/ป , - ,-,*,.
* ; ~<"~-~.'."\ ,~ '.'- _ . - " ^
- '" " ' " y~ '- " '
' v % ' ',
*.*"'''*"
, ^, ^ , .,...., , . , " '
1 ' '* ' ' , Y' - ~
V
IT
: '
6.8 0.60 0.644 7.43 -0.09 0.05
*'' 'ฃ>' . " .; ,-"
' -
7.2 0.25 0.268 7.43 -0.09 0.05
V
Data sorted by Laboratory Average
Average Tag Lab
4.47 11 TI
4.87 U JY
5.00 Ji QT
5.10 U SI
6.00 BG
6.07 PM
6.20 ID
6.30 OY
6.30 ; NT
6.47 K
6.50 AW
6.53 PP
6.53 DE
= No data submitted
0 = Insufficient data
Average Tag Lab
6.57 PG
6.57 BH
6.60 PV
6.63 CK
6.63 A
6.67 AF
6.73 DB
6.73 BM
6.77 AE
6.80 AL
6.83 QZ
6.87 SF
6.93 E
TAG SYMBOLS
x s Determined to be an outlier
Average Tag
6.93
6.93
7.00
7.03
7.07
7.07
7.07
7.10
7.10
7.13
7.13
7.13
7.17
IT s Above control
!) = Below control
Lab
BO
S
SZ
CG
RV
RN
AP
GQ
CS
SS
CE
CA
HU
limit
limit
-------
EMSL-LV Intel-comparison Study: Performance
Radium-226
Evaluation-A, 20-Oct-1992 17
731 1
.
""' v
Data sorted by Laboratory Average
Average Tag Lab
7.17 AZ
7!23 SC
7.23 L
7.23 CJ
7.27 NH
7.27 BK
7.33 NO
7.33 LT
7.37 RZ
7.37 EO
7.43 W
7.43 HY
7.43 U
7.50 T
7.50 FN
7.53 HK
7.60 PB
7.63 HL
7.67 BC
Average Tag
7.70
7.70
7.77
7.80
7.80
7.87
7.90
7.93
7.97
7.97
8.00
8.07
8.07
8.10
8.10
8.10
8.13
8.30
8.40
Lab Average Tag
ME 8.47
J 8.47
OX 8.47
QU 8.60
DZ 8.87
JX 8.87
Q 9.00
PT 9.33 ft
BA 9.47 ft
KZ 9.77 ft
M 9.87 ft
DT 10.13 ft
C 10.20 ft
RG 10.57 ft
HP 11.13 ft
GZ 19.33 x
P 21.23 x
TQ 38.80 x
AI 46.33 x
110.73 x
Lab
OF
JG
I
RM
RC
JE
SD
NJ
JS
RF
TN
TG
QX
AK
TS
PC
TE
PW
FF
OK
i
% responding labs Frequency distribution
J :-;--
.. .__-. --_- .
__ liillllMilil.
6 -4 -2 0
.1- ____
+2 T 4 T
1
+6
Normalized deviation of the mean from the known value
% responding labs Frequency distribution
_ ___ -iliilllitilHil-,
-6 -4 -2 0
Normalized deviation of the mean from
_1_ _ _
+2 . +4
the grand average
s No data submitted TAG SYMBOLS ft s Above control
0 = ^Insufficient data x s Determined to be an outlier & = Below control
+6
limit
limit
-------
EM8L-LV Intel-comparison Study: Performance Evaluation-A, 20-Oct-1992 18/31
Radium-228 Statistical Summary 209 Participants
The known value of this nuclide is 10.0 pCi/1 with an expected precision of 2.5; the control limits
are 5.7 to 14.3; the warning regions are 5.7 to 7.1 and 12.9 to 14.3
119(56.9 %) Failed to respond;
5(2.4 %) Outliers
1O(4.8 %) Out of control --
but not an outlier
Statistic
; 71 (34.O %) Within all limits
Respondents
* 4(1.9 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
13.85
32.86
1079.66
237.23
38.51
0.12
10.22
2.17
0.01
Grand Avg 10.15
2.45
6.02
24.17
1.51
0.06
10.13
1.33
0.05
15(16.7 %) More than 3 norm. S.D. .
4(4.4 %) Between 2 and 3 norm. S.D.
;46(51.1 %) Within 1 norm. S.D.
t
I of known value
25(27.8 %) Between 1 and 2 norm. S.D.
-------
19 / 31 EMSL-LV Intercomparison
Study: Performance
\
Evaluation- A, 20-Oct-1992
Radium-228
Lab
A
AE
AF
AI
AJ
AK
AL
AO
AP
AR
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CO
CQ
cs
D
DB
DD
DE
DJ
DL
DM
DO
D8
DT
DZ
=
0 a
Res. 1
11.8
9.2
9.6
11.3
9.7
11.2
3.7
1.5
6.5
10.3
10.9
, ~~ f '*
10.2
9.6
11.7
8.6
* '
8.6
12.0
10.8
10.7
10.0
14.8_ (
' ' * \ '7r;'"v '
11.7
8.5
9.9
v! '>'
/' - ~ '
^
9.5
11.5
Res. 2
12.9
8.5
9.4
11.1
12.9
10.3
3.4
- ' 1,4 -
4.5
9.4
10.8
11.9
10.7
11.6
11.1
4 ,,,;. ,,.<.;..,
8.6
11.6
10.9
9.0
11.0
17.3
' "' '-/ '/<"
9.3
'-,', -
9.5
9.9
V - ? -
. ;" *:^;:'
' ' : <;' --''
s * - ,\ ' ซ' > .-
9.3
11.8
Res. 3
13.4
8.8
9.7
10.8
10.3
8.5
3.6
.'
1.8
3.7
10.5
10.5
11.6
10.6
11.1
'>-
10.7
8.5
11.0
9.4
9.6
10.0
13.8
.'"'V^;^
*,',--lr?vx
11.5
1 : " V\
9.0
-. --, ',? "
9.8
v j ' ",- >, ':-:
f- \-
^\ ;;:/ -
:. : ;;;;*. \
' , V , %* ^ ^
8.5
11.6
No data submitted
Insufficient
data
X S
Exper.
Sigma
0.82
0.35
0.15
0.25
1.70
1.37
0.15
0.21
1.44
0.59
0.21
0.91
0.61
0.32
1.34
*
0.06
0.50
0.84
0.86
0.58
1.80
* '':. '- *
1.33
0.50
0.06
0.53
0.15
Rnganal
(R -ป SR)
0.378
0.165
0.071
0.118
0.756
0.638
0.071
0.095
0:662
0.260
0.095
0.402
0.260
0.142
0.591
0.024
0.236
0.354
0.402
0.236
0.827
0.567
0.236
0.024
0.236
0.071
Normalized deviation
Average
12.70
8.83
9.57
11.07
10.97
10.00
3.57
1.57
4.90
10.07
10.73
11.23
10.30
11.47
;
10.13
8.57
11.53
10.37
9.77
10.33
15.30
10.83
9.00
9.87
9.10
11.63
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
1.77
-0.91
-0.40
0.63
0.57
-0.10
-4.56
5.95
-3.64
-0.06
0.40
0.75
0.10
0.91
-0.01
,.
-1.10
0.96
0.15
-J0.27
0.13
3.57
0.47
-0.80
-0.20
'"' s '- ~~
-0.73
1.03
IT 3 Above
11 = Below
1.87
-0.81
-0.30
0.74
'
0.67
0.00
-4.46 U
-5,84 x
-3.53 Jl'
0.05
0.51
- ,
0.85
0.21
*
1.02
0.09
-0.99
1.06
0.25
-0.16
0.23
3.67 ft
'V; ; /
0.58
-0.69
-0.09
*
~ ซ,
-0.62
1.13
control limit
control limit
-------
EMSL-LV Inter-comparison Study: Performance Evaluation-A, 20-Oct-1992 20 / 31
Radium-228
Exper. Rng anal Normalized deviation
Lab Res. 1 Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
EO 10.8 __10.4^ 11.0
0.31
0.142
10.73
0.40
0.51
0.29 :
~ , *!>!* v.
0.45
; \v---o'-'-s; -VoK-^VO _"*\!'* s^-^ \ V -' - N-'\Y: - ;--*:'
"'V--ฐ ;". \- " ,\<- --;^\^v' ^-V- <--,'', {o^.'iv* x,v
0.213
* ^ ^^,^ V;--1 .^i-^^s'V Xv. s^^^* JSji^^fti.v?*'vปx .^^t ^'v *** 'i"1 "^x'V *N % t ''"
" itti&^* ^>.^^^^C^f ^ ฐ; C>V;- ,ซ*.ซ \ - >.--
C ^Tc\--i>-3i^V*K ^$&'^^^^^^ ;^\ ^:-^"-^H C's- V -*-
JS
JX
JY
K
,;^'-.-.* s?o , ^\ ^^ ^ v^^-^
~i ;,iK' / i '4V ;-H, ',-^ซ > r; - -\^ซ
^X^:HS\>K>^!,v'.-<.yv,ft- **$*
' -a-v^-vA^M-xi^--,:!- ^.'
' "'?-, f - ''- "!>.' *-> Xx-'^s- " "
11.0 9.6
12.6 12.1
6.7 8.8
6.5 8.8
11.0
13.1
7.0
6.8
0.59
1.05
1.11
0.75
0.46
0.40
0.92
0.21
0.81
0.50
1.14
1.25
0.260
0.496
0.520
0.354
0.213
0.165
0.378
0.095
0.331
0.236
0.496
0.543
11.50
9.97
-v, --.j
8.20
11.23
5.73
11.47
10.53
12.60
7.50
7.37
0.93
-0.13
-1.35
0.75
-3.06
0.91
0.26
1.70
-1.84
-1.93
0.25
-0.67
1.04
-0.02
-1.25
0.85
-2.96
1.02
0.37
1.80
-1.73
-1.82
0 =
No data submitted
Insufficient data
TAG SYMBOLS
Determined to be an outlier
ft = Above control limit
$ = Below control limit
-------
21 /
31 EMSL-LV Intercomparison Study: Performance Evaluation-A, 20-Oct-1992
Radium-228
Lab Res. 1 Res. 2
KE
KT
KX
KZ
L
LE
LF
LG
LM
LB
LT
M
MA
ME
MN
MO
MP
MQ
MS
MV
MY
N
NA;
NH
NK
NO
NT
NZ
O
OB
OF
OK
6L
OM
OS
OX
OY
P
PA
PB
PC
PB
=
0 =
9.4 9.1
9.7 9.7
12.1 11.2
9.6 10.9
6.8 6.2
/fcSMS
9.6 A1'1,
12.3 13.4
9.6 9.0
10.5 9.1
" ^ , 325.0 ' ' ',>, 'jtt&M Jl
10.2 10.1
11.1 V17.6_
4.5 6.1
10.8 10.6
16.2 18.4
No data submitted
Insufficient data
Exper.
Res. 3 Sigma
9.5 0.21
9.7 0.00
10.3 0.90
9.0 0.97
7.6 0.70
1 - V, -,"''-, ! i ",
8.4 1-35
s ' ^ *
16.5 2.18
10.1 0.55
' v *'sV ' ' >/'"
8.2 1.16
J^^.^
10.1 0.06
._.14.9v 3.27
5.2 0.80
11.0 0.20
15.4 1.55
Rng anal
(R + SR) Average
0.095 9.33
0.000 9.70
0.425 11.20
0.449 9.83
t
0.331 6.87
t '
\
0.638 9.70
2.245 21.33
0.992 14.07
0.260 9.57
0.543 9.27
3.596 320.67
0.024 10.13
2.020 14.53
0.378 5.27
0.095 10.80
0.709 16.67
TAG SYMBOLS
x s Determined to be an outlier
Normalized deviation
(grand-avg) (known) Tag
" ' , ;*,' > *
-0.57 -0.46
-0.31 -0.21
/ ' ' *
0.73 0.83
-0.22 -0.12
-2.28 -2.17
,' ' ' ' - ' *.
-0.31 -0.21
7.75 7.85 x
2.71 2.82
-0.40 -0.30
, ,, , ,, ^^
. ** - ' ; '' '
-0.61 -0.51
215.13 215.24 x
-0.01 0.09
3.04 3.14 TT
-3.38 -3.28 &
0.45 0.55
4.51 4.62 ft
*
IT = Above
$ s Below
control limit
control limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-A, 20-Oct-1992 22/31
Radium-228
Lab Res. 1
^P 6JL~.
11.1
9.9 ~~
_ 9.7
lllSfli
8.1
11.2
8.0
13.2
10.4
11.2
__4J>_
Res. 2 Res. 3
งSrf:^at
12.4
8.1
12.4
4.5
L!L ,7:L, , .1
14.3
__sป:7
15^0
10.8
10.4
__7.3
10.5
\ *< . '' "1 0 ft ' s s ^
^%^* txJLlTiV ^o^S1-^ ^'".
9.2
__12.4___
\^^- > s-Sxx- '|SA^
^%^7-y^c^^
8.8
11.9
8.0
12.8
9.1
__12.6
,_iv^4.
''vl'K:
10.5
8.7
10.5
4.9
9.3
' s^s; "-.' ^-^
"^ X"^"- is^
29.4
10-0
12.0
10.7
12.2
8.0
10.8
II
8.5
13.3
*%NX" x^" -11" ^
txซ C^Vt v-."
^x"^"^ % ^
j ^t-^y?-^ "" -
^j|{>
10.8
11.3
8.1
9.0
9.1
12.6
^4.5_
% " > \ .
= No data submitted
0 3
Insufficient
data
x =
Exper.
Sigma
\ - - v
1.23
0.38
1.23
0.56
1.01
10.75
0.91
1.73
0.49
1.75
0.96
0.30
0.70
1.87
!:L\-A l>
-ซx\"\\- ' -, s !l
1.40
0.38
0.06
2.32
0.75
0.81
0.06
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
- -i*
0.543
0.165
0.543
0.260
0.425
8.456
0.402
0.709
0.213
0.827
0.449
0.142
0.473
1.436
0.331
0.851
s " ^ vv"
0.638
0.165
0.024
0.992
0.307
0.331
0.024
, " \
"-- "^;^- :x~^Vx
11.90
8.27
11.90
4.40
8.13
17.43
9.33
13.00
11.03
12.17
7.13
10.80
20.50
9.20
11.80
f "' -/^ \ /;>V^
/-vf;;^;Cr"'
9.23
11.47
8.03
11.67
9.53
12.13
_4.47_
TAG SYMBOLS
Determined
to be an
outlier
>^>;-:^r-
1.21
-1.31
1.21
-3.98
-1.40
- s \
5.05
-0.57
1.97
0.61
1.40
;2.09
0.45
-0.66
_1.14_ ^
^-'-^'^X,''"^^
X;|^Arfv
-0.64
0.91
-1.47
1.05
-0.43
1.37
-3.94
t! = Above
& = Below
':>.;v;.,.?i
1.32
-1.20
1.32
-3.88 U
-1.29
\ -, "
5.15 tr
-0.46
2.08
0.72
1.50 (
-1.99
0.55
6<70 x,
7.27 x
-0.55
1.25
';^;; - -
; : ;>s ' '
-0.53
1.02
-1.36
1.15
-0.32
1.48
-3.83 11
control limit
control limit
-------
23 /
31 EMSL-LV Intercomparison Study: Performance Evaluation-A, 20-Oct-1992
Radium-228
Lab
SR
ss
ST
8W
SX
sz
T
TA
TE
TO
rpg-
TI
TK
TL
'TM
TN
TP
TQ
TR
TS
wrti
A A
TV
TW
TY
TZ
U
UA
W
.. ,r f
X- -
Exper.
Res. 1 Res. 2 Res. 3 Sigma
;,- **>:/;- * *, '," r^tt ;=-" v,i, .% ซ v,;>; ; --
11.9 10.1 11.9 1.04
" ' ' "-' >,'' * '''*,' '" '
9.9 10.0 10.5 0.32
12.5 14.2 10.8 1.70
9.3 10.9 9.1 0.99
^ '''-'' "" ' , i;
_- " v ., \ ,. "* ^"^ s ' * .
]:" Vi'^v;'?' ;*''';'''' '?" ^ *''"-' :
'' ' r '" '' ' <~" ฃ' J ' --'''/-" ,'" ",l
6.0 6.5 9.1 1.66
'-.' / , -,* '-' f^;:T,v'">\'-\~ '"' '/; -^' /-- -"- , - -
-\.' ^\i-- '^v -\~ '*''-<,:.. ''>*c-' r-- !- ' ? ;-A . \ .
-"v'i'\-'ฐ t^^^-'-'l;; ? ;-" V:"^""' ? '--^ - '
. - \ -V'-'/'r'^ }--', ;" -V-' '' -- -.'--'
12.4 12.0 13.0 0.50
" ^ ;-";^^;;_-;^:v-5- - < v^, . -
8.5 8^4 8.8 0.21
','*'..- '';-'-"' !xvV<\ "V>',i,' -V" X>' -"'
16.4 13.2 13.6 1.74
^ ^ v,,v.ซ,-^ ซ^,.,,ป J..-/--V;-.- ~^ >; -,-;<_- -,- ~ ^
,,'l > - -ff't "**.'.'''*'*''"". ^
- ^">v J^:,-"- -,. i.'. S?;AX- ,CA ฃ, \ , " " " ,
" '- - ''x*, ' 1 '"!."." '">,*ซ?,'ฃ-. ,- C> >v -x"/,'""' '. '' . '
\''' ':;'-.;'i-t ^r;/, '>.>'-; * '' '- "'' -'"; '"
'" ,""*--":^> v-V;ป../^ ^!"- <"', :;-'-:'"'/ " "'
- ,- , - ,' , ^
8.9 6.3 8.9 1.50
' " T!: ff;>" v Jff^^1 J/V^ ' ?/^,< ^.Jf," '/:\* -" ;- / ^ -
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
'- * -',-"'_ ฐ : ". -,-' ,v -; ,HV-I>-SV - i'\ ,-;: , - ,
0.425 11.30 0.80 0.90
-,"-",,' "--',',,
, '
0.142 10.13 -0.01 0.09
0.803 12.50 1.63 1.73
0.425 9.77 -0.27 -0.16
'',,ป.
'",-,' ,
- '' - ^:~. ' :-, '-,/.-; - ;:, >/"'--' -^\ ' - -'- -:~-
'-'--, ' ' --
0.732 7.20 -2.04 -1.94
, ;(,' s ' ,* ,
' - -' '' * .' ' ' -' , , ' " * ' '
0.236 12.47 1.60 1.71
0.095 8.57 -1.10 -0.99
' - ' . ' - ' '
0.756 14.40 2.94 3.05 ft
''.-'" * ' , _ ."' * 9
- , _ - '
' ' ~ - '- ! ,% -,, V , ' ; --
' ' '
- - '; >';/ \
0.614 8.03 -1.47 -1.36
. ^ ^ , 5 , ^ ^ ^ , - % - ,^ ' , ^ -^ '^
0.425 10.07 -0.06 0.05
- ' --,-' / - ", , '- t > ,
Data sorted by Laboratory Average
Average Tag Lab Average
=
1.57 x AW 8.03
3.57 U AP 8.13
4.40 li PW 8.20
4.47 U SI 8.27
4.90 U AZ 8.57
5.27 11 P 8.57
5.73 JE 8.83
6.87 ME 9.00
7.13 RD 9.03
7.20 TI 9.10
7.37 K 9.20
7.50 JY 9.23
8.03 U 9.27
Tag Lab Average Tag Lab
S 9.33 QU
Q 9.33 KZ
ID 9.53 SD
PP 9.57 NT
TQ 9.57 AF
C 9.70 NH
AE 9.70 L
DB 9.77 T
HL 9.77 CG
DT 9.83 M
RM 9.83 GQ
RV 9.87 DE
OF 9.97 I
No data submitted TAG SYMBOLS ft = Above control limit
0 a Insufficient data x = Determined to be an outlier U- = Below control limit
-------
EMSL-LV Intel-comparison Study: Performance
Radium-228
Evaluation-A, 20-Oct-1992 24
/SI ]
Data sorted by Laboratory Average
Average Tag
10.00
10.07
10.07
10.13
1013
10.13
10.30
10.33
10.37
10.37
10.53
10.53
10.73
10.73
10.80
10.80
10.83
% responding labs
10-
o - '
6 -4
Lab Average Tag
AL 10.97
W 11.03
BA 11.07
SX 11.20
OX 11.23
BO 11.23
BK 11.30
CJ 11.47
HK 11.47
CE 11.47
JS 11.50
FN 11.53
EO 11.63
BC 11.67
RF 11.80
PB 11.90
CS 11.90
Frequency distribution
________________ _ _ _ _ _ _ _
I
llll.llll
Lab Average Tag
AK 12.13
QZ 12.17
AI 12.47
LT 12.50
J 12.60
BH 12.70
SS 13.00
RZ 14.07
JG 14.40 IT
BM 14.53 tT
HP 15.30 ft
CA 16.67 IT
DZ 17.43 IT
SC 19.67 x
RN 20.50 x
PV 21.33 x .
PM 320.67 x
iJL "~--. -."". :
+2 +4
Lab
SF
RC
TN
SZ
JX
A
QX
NO
TS
OY
CK
PC
QT
RG
RK
NJ
OK
- -
1
+6
Normalized deviation of the mean from the known value
% responding labs
0 * Iff f
-6 -4
Frequency distribution
I I
.. . _- 1 Illlllllllll
-2 0
_ . . .
+2 +4
1
+6
Normalized deviation of the mean from the grand average
= No data submitted
0 = Insufficient data
TAG SYMBOLS IT a Above control
x s Determined to be an outlier !! = Below control
limit
limit
-------
EMSL-LV Intel-comparison Study: Performance Evaluation-A, 20-Oct-1992 25 / 31
Uranium (Natural) Statistical Summary 209 Participants
The known value of this nuclide is 10.2 pCi/1 with an expected precision of 3.0; the control limits
are 5.0 to 15.4; the warning regions are 5.0 to 6.7 and 13.7 to 15.4
1O1 (48.3 %) Failed to respond,
7(3.3 %) Outliers
7(3.3 %) Out of control
but not an outlier
Statistic
88(42.1 %) Within all limits
Respondents
- 6(2.9 %) 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
11.03
6.77
45.86
61.42
8.09
0.12
10.00
-1.96
-0.03
Grand Avg 9.74
2.17
4.72
22.31
-4.49
-0.21
10.00
-1.96
-0.09
14(13.O %) More than 3 norm. S.D.
7(6.5 %) Between 2. and 3 norm. S.D.
73(67.6 %) Within 1 norm. S.D.
of known value
14(13.O %) Between 1 and 2 norm. S.D.
-------
26 /
31 EM8L-LV Intercomparison
Uranium (Natural)
Lab
A
AE
AF
AI
AJ
AK
AL
AO
AP
AR
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CO
CQ
cs
D
DB
DD
DE
DJ
DL
DM
DO
DS
DT
DZ
E
=
0 s
Res. 1
10.8
13.1
11.5
10.6
10.0
13.0
7.6
s t ^ J -^ ^ ^ :
^ O " . s ?'
5.9
11.2
9.6
9.1
10.1
7.7
8.6
'* ' ,~ ' -',,
4.4
% ^ ^ S ^ -.;. *
*" . ,. * A
9.6
";- - ?, f \^' ,
! ^ '' K "" ซป
9.0
10.0
12.6
11.0
11.0
9.1
9.6
;* >>-*^'
11.1
10.1
10.0
* ^: "{' y,",f ' ?_
10.5
-f , - 4 $^ '-''.*-
'' ' -' -\r'^ ,'-
' .. -} ..
''^ r24Sง
f '',''' 'ฃ* ;
10.0
9.8
10.6
Res. 2
11.7
13.1
10.1
9.2
10.0
11.2
8.8
x ^ '-
V1' /-'^vV
-' " <'* "' y':' '
6.2
11.3
9.2
8.7
10.1
7.7
8.8
4.6
10.2
* ': V " V ' A*, S,'-
'' %' '\ , v11'
8.8
9.7
11.7
10.0
11.0
9.5
9.4
-'vS-tT^'
11.4
10.1
11.0
P";r^|^ '^x ;-,,4-,{-,C
/"V x^loj>;'
*'~'', '-;~V' ','--t^i~
10.2
10.5
9.5
Res. 3
12.5
16.8
10.9
10.2
13.0
12.5
7.6
"/' > :\_
-V, ;-,/;-
'* \ " ^ v
5.3
11.3
9.7
8.6
10.3
7.9
8.9
;!-" , , " "
4.9
C'" - ': -
9.2
V S- v s ^ J
8.9
9.5
11.8
10.0
11.0
9.6
9.5
'!;' "<'<*,"< f-?'"- >*
\ ,--,! ;>;"ซ',
11.7
10.0
9.0
f'^'^'C ''
10.5
,J*^fTrr-
,--;, ^;-4i>\
-,i, ">'-ป> /,
v-v:22V$;;
V ^ -;:J>>4
8.7
10.9
9.0
No data submitted
Insufficient
data
X a
Study: Performance Evaluation-A, 20-Oct-1992
Exper.
Sigma
0.85
2.14
0.70
0.72
1.73
0.93
0.69
0.46
0.06
0.26
0.26
0.12
0.12
0.15
0.25
0.50
0.10
0.25
0.49
0.58
0.00
0.26
0.10
': ' '"":
0.30
0.06
1.00
0.00
'~i* **" *
v:\ ,-
'~- '
" *;- ll2g' ..
A~s
0.81
0.56
0.82
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.335
0.728
0.276
0.276
0.591
0.354
0.236
0.177
0:020
0.098
0.098
0.039
0.039
0.059
0.098
0.197
0.039
0.098
0.177
0.197
0.000
0.098
0.039
0.118
0.020
0.394
0.000
0.453
0.295
0.217
0.315
11.67
14.33
10.83
10.00
11.00
12.23
8.00
' ' ^ " *
-; \ ;
5.80
11.27
9.50
8.80
10.17
7.77
8.77
4.63
;
9.67
8.90
9.73
12.03
10.33
11.00
9.40
9.50
11.40
10.07
10.00
10.50
f //''' - :
,
, .
23.43 i.
-' t "
9.63
10.40
9.70
TAG SYMBOLS
Determined
to be an
outlier
1.11
2.65
0.63
0.15
0.73
1.44
-1.01
>,V. -
-2.28
0.88
-0.14
-0.54
0.25
-1.14
-0.56
-2.95
-0.04
, '
-0.49
0.00
1.32
t).34
0.73
-0.20
-0.14
/ - -;
0.96
0.19
0.15
0.44
- '/, ;
- V '" "',*-''"
-;;J'.90;' \ -;
-0.06
0.38
-0.02
ft s Above
Ji = Below
0.85
2.39
0.37
-0.12
0.46
1.17
-1.27
.}.. ,
' ''
""*"'-,-,
- " -'"'-
-2.54
0.62
-0.40
-0.81
-0.02
-1.40
-0.83
' - .- , ,
-3.21 Ji
9
-0.31
-0.75
-0.27
1.06
0.08
0.46
-0.46
-0.40
' '
0.69
-0.08
-0.12
0.17
!\\ V'-'
.' - ,ป,
*
7.64 x
' '
-0.33
0.12
-0.29
control limit
control limit
-------
EMSL-LV Intercompariaon Study: Performance Evaluation-A, 20-Oct-1992 27 / 31
Uranium (Natural)
Exper. Rng anal Normalized deviation
Lab Res. 1 Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
EB
10.0
10.4
10.7
0.35
0.138
10.37
0.36
0.10
, > -^ *V Xป ^C o ซ'--'- i;* x V -'" -~;'~ : - ~ ,
fWliVs.y^ >! S^^WV*-" ^-" x- - Vป "-
ปT* * w^vx* .V.VN x > ^'^^^^ \-.'^ \ s s ^i ^ x ^-O \ v >sX\v'' iV^ ^^ "" "" s ,
k^Sft^ฎ ^ป^iS^^^;;:!:
J2-rt^(^i|^^f^VT
FE 10.0 10.0 10.0
i^'M-g^piC^Tfl^-- v;\;>r;; xi,:~>F^;-1- T^ --\
- - ^M^JVi^^^^^-'^HS;;^^ \ "':
11.
FN 10.5
11.2
0.00
0,26
0.36'
0.64
GQ 11.6 10.0 11.2 0.83
*^^^?t*^o;tซซ8jปTO?^8?RW^^y!r^;r^rv''^'1"''"x\1 T "- "
! GTc^-^-^fix^"'^ 'I^X^^;*1-'-^*"5*'^ V-1 ' ':~x 'lS>''
GZ """"?''A 7.8 8.3 0.45
0.64
0.00
1.11
0.57
0.15
0.40
0.96
0.25
0.26
HK
HL
6.1
9.5
HP
HY
I
6.9
9.2
10.7
6.1
9.5
9.1
10.3
10.9
ID
IE
JE
8.2
10.0
*ฃ- -*"js^v
W:
10.4
8.7
8.2
^10.3
-4s ^ sA',- '" ^-.-
^.^
10.2
9.2
7.2
9.5
8.3
9.5
11.0
8.9
11.8
^o-'-Ct
" -
10.7
9.1
V U " v\ ^
JS 10.0 9.9 10.0
v" ^^J" '*M**ซA^* ^ MC**\'ซC1 "^-Nr-ty** \" ^w i, \^ " \ ' ^r^^*;> % "C1 T ^ % ^"J* * - "
0.06
"*- ^' -, > ---"'-'c
0.000 10.00
0>098 ; ^; ;2&37:;
0.15 -0.12
7.60
0.138
0.236
0.315
0.177
0.217
0.000
0.433
0.217
0.059
0.138
0.354
0.098
0.098
10.90
10.27
10.93
v N ^ y^s
:^:,>: : -
7.83
6.47
9.50
8.10
9.67
10.87
0.67
0.30
0.69
-1.10
-1.89
-0.14
0.40
f
0.04
0.42
-1.37
-2.16
-0.40
-0.95 -1.21
^-,'V;i; 5^( /^' "
-0.04 -0.31
0.65 0.38
8.43
10.70
10.43
9.00
-0.76
0.55
0.40
-0.43
-1.02
0.29
" _-, ., ^
0.13
-0.69
0.020
9.97_
% " ^ o"* "" ^
0.13
-0.13
9
9
JY
K
12.0
9.0
11.0
9.9
11.0
10.0
0.58
0.55
0.197
0.197
11.33
9.63
0.92
-0.06
0.65
-0.33
9 = No data submitted
0 = Insufficient data
TAG SYMBOLS
x = Determined to be an outlier
ft s Above control limit
= Below control limit
-------
28 / 31 EM8L-LV Intercomparison Study: Performance Evaluation-A, 20-Oct-1992 1
Uranium (Natural)
Lab Res. 1 Res. 2
KB
KT
KX
KZ
L
LE,
LF
LG
LM
LR
LT
M
MA
ME
MN
MO
MP
MQ
MS
MV
MY
N-
NA
NG
NH
NJ
NK
NO
NT
;SNZ
Q
OE
OF
OK
OL
OM
OS
OX
OY
OZ
P
PB
PC
PE
=
0 9
- vV- , "*'--'
3.8
-, s <
11.5
! ):; VY '''
- '
,' ' * -"',-'' '*
s "" -. *j -. V' .
- Vy'- ;'"'T ;}
11.9
;-. Y*, <,.;; ;
X -X - "" "> '
" > * ! v ' " \- > " \*-*
9.8
-; y v,p"";'v
-^V&V/i';;:
''*'''$** ,"/'ฃ;
, "V "Y"" ~:
.,,J?,-*L -
- ,Vrf'P^'V^
. Yy -\r:" " *
~\i , ~' ' Frปป
9.0
,*V!' J '---; v '/
11.0
9.1
8.1
8.6
10.1
,. ;^V>>''V
^VvFxL^
-'^"^'rv/
14.2
''/'YiC^W^
" ^ A^ C-'.v ;;
Y"^V-''\4
9.6
i Y^C^iv'""
11.0
9.9
_,6.1_
11.2
45,4
- ''* .,' ,
'-; - - " ซ"'s
4.0
11.5
" ;- / -,
*" "" """ % * "" A ""
c/ ' ^ -;/"
^ j\ f f ..'
11.5
-> v'' -r\'"-'
: ,;:,,y4- i.
9.2
"* % "" '"" O^"-'^ "" /%
H"% ซ ',-, i"
';i'">1:-TX,.'' ;
s-
$ .. & " ' "
,. "^ / - --^
11.7
^/ " ^' \' -
,- Y"' ' .- -- '
10.0
"''""i '"A ' '" '
^'- v\rf- ':*'>-
-,:"" 7; ; ^.i^, - ,.
9.7
J^VV^^^'"-^'''
*;'; "^. -ป/''-*
IK >!;'<;. :>'-Y
11.0
*" T\ <' '' "
10.2
9.2
7.6
10.5
11.4
^'^%^:
Av^c>/l>/4
|f:fp,;: ';?*"? ^
12.6
>#Yt{^4^/'?>--
If^^S'ฎ-
Y,"ป?pv';^.' "!ฃ*/'-'' '>
^ 10.3
pli-y^^v--
11.4
10.3
3.0
11.0
44.0
'"'', ' s ^ /
No data submitted
Insufficient
data
X S
Exper.
Sigma
0.10
0.35
-< '.-,, -
0.20
- r ' " '
'''-,, '"
0.42
^ t
- - --1
0.10
A -1 ^ '
? - "
1.00
*<
0.49
0.49
0.29
0.97
1.25
-ifV:r , ;
"^}.^- " s
r
0.90
,*',-, ,';--,,
'f f \ '.
1.13
, - - - . . " /
; , -
-0.04
',' -"; ^-:. -' '
I-"' "/ '.
'"
-0.08
V
0.15
'- ' V " , /
0.59
-0.51
:1.04
-0.18
0.94
;,;"
2.27
, ' > -
' .
0.19
-* * "' ' * >
0.82
0.11
-3.49
0.73
20:30
ft s Above
II s Below
'ซ" X" "*-.
-3.64 11
"-. " '" "
- :
0.64
'- ;" -;'"' '"
i
; . .
v'
"V,/ ^^>
0.87
-
-
-0.31
.
* Y : > ' - --
-
-0.35
'' " '' ' "? '" /
,
-0.12
/ ~ . ''',
0.33
-0.77
-1.31
-0.44
0.67
/.-.,. -
*'"" ^ ''"
;;/ ': "
2.00
- ป--;
' ' ' ' ',
-
-0.08
v- -"" /'- '.
0.56
-0.15
-3.75 ii
0.46
20.03 x
' 0
control limit
control limit
-------
EMSL-LV Intercomparison
~V(
Study: Performance Evaluation-A, 20-Oct-1992 29/31
Uranium (Natural)
Lab
- 'a r* "
\ * Wซs
PL-i
PM
PP
PQ
PR
PT
PV
^plfC
' ^y'0
-PY.v
Q
Res. 1
;* ^ s ^ '* \ ^ >o ^i.'-
;^-% ' -'\;- j*1 ">rv;i-
x ' 1 V C ","- ' '
4.9
10.6
10.3
-',^;:,-^%"\v^\
9.4
4.7
T^ฅ4ซ0^
;;^; ^v; s -''''^''^.''h''''
T^" lX,^?"5/^
^8.2'
"'iป^sf^?W^|^
QQ
%s v *> iaS"**'
'^ ซ MTJ&
"* ^w " gjxtj
SI
SL
* ***. 5r"iis
so
=
0 a
7.5"^
jSji!^^1" *i'"1'1^ ^^'-''.^^xt^s 0^"
^VV^;^" ^ ^ ' *"ft^> ^-.^X
! j5"s5'X"- h ^\ % '^'^^''st'^'.v
iil^S
f r-^W^'SJ:
14^"'
8.0
10.8
15.2
^.p>s;;I$^%'Vx'
9.8
10.0
?^IS^^
^^^13.3'
7.6
9.9
^^^*^\^*W^^i*^Aฅ*:l^S>!'
is^^l^'"'^ ^"S^tss"'" v ^x '
VhsSSftN^ h^fhXiS.si V\ 1 \ ^V\'"
_.ll-3_
,~t|"x; l'-^^-^
^ * >V^ฐ^*V ^s^ ^ ^* V^ X
"C' C^^ ^5^\xt*^^
^i<'*>-H'^!^sy^f\s^
l,'l;tซ|t^^f^J|&
J^Sv^v^^w
""ia!?"
9.3
9.9
9.1
10.2
^ h\Xv! ' ^\\<\X!!' ''"'''''^X' 1'-\
^V.h ^? ^v*V **^s- ^'C''^?^
3.0
16.0
s^s^>"1'^ ^"^"^ w ' ss*^
4.2
Res. 2
^ "* s sh iV^ " "''
^^ป^*\ h\'^"x /-
"^ *" ^s - " % ^ %
4.8
10.6
10.1
9.0
4.1
^:45.dlv
s ^"^ s w^^ ' \^
h^ -, s ^^ "" s >
_^'^9.0 ^
^^ll$3
^S!:^
'."'. 7-2 .
s
**
^\st;'V""^ ^ "'^^v^
^X'^ rijTi'^" ฐ-"
^--'^ --^%/^Cr^ ^v
-,;it^,;;;-.\'K
13.1
7.8
14.3
15.0
-7>^r^';^:^
9.8
10.0
x ^ is \ 1*. ^ \
11.7
7.8
9.9
\KC?^'^^^:^^'^^*
Jjsv ; ^''s^h''^ ^-^L.|\
" %' ^iwf ^ -. -.SSSSs"1 ^S\S*
__113_
งง;^\*i^
^^^^V^ ^-V^ ; i.,^
^-.V^I-fO * ^ >f"~-^
Sj^^A^^-lH^i'
^SJlf^fl.l'l
y^l'.v?~~&?Trf
'"9.7 '
9.6
10.0
10.1
10.4
^XT"-*1^* ^^ * ^Xs"^^-^
<ป i^j"*^* '^"ซV o
2.8
11.0
AWMVMW.VJW. ^\ 1^ -A
4.8
Res. 3
1 "'"'' 'h " *'-o
t" I i i j. h- i ""
^ ^ " s "
5.1
10.4
10.1
:-"""'- ;- - -
9.2
4.0
^-;V,;4o;o" '
^-is* ""'-''X'-'x ' "
f 1 *\ \ \
9.1 _
^^I^'V'^;,
'^rC ^c?~~ T
,.,,7.6,
h \\^ \ ^ ^ ^C'-s" SVN
h^v1"1" ^^ " "" ^ -. -
^ ^ N ^-.-.'1-5 ^ ^ % "" s^h
jj,/$'$& : ,
^ \V'' ::.' ' f
15.1
7.3
10.8
15.1
V-' .-^s ''.'' -
9.8
10.0
y?V"sl X-x x
12.5
7.1
10.8
^^^^X^'^'S'^^4^.- V^.
O^l^l4*^^ -x.^j ^ * f
hhSii-sCs1 hs-.'\\s% XS.A ^ ** >
11.3
<%^"-^-^-5\
^ i"' ^ '"^"^ **-'' ' ""
j,h^xS^ J'l J* ^*vSs-w V^' * """
TSst3tsy^J% *V^ ^
* > ;-\\ v ^> i\^ * ^ x vi ._ \\^-
,$?$&:':&* j^-.^ '. V^
8.5
8.9
9.5
10.8
10.8
X'*v* V-J'' o ""v"^ ^ - ",
^*^ s^hv C^^ --S' " *% '''
S1S- "" %h% h hV ^ ^ "'
2.8
18.0
hV^^^^1hhl,hhV.^AhHK,hy. -^ hi h ^
5.7
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.15
0.12
0.12
0.20
0.38
2.60
0.75
O ,. ** ** j h, *X
" " % h - ซ
0.21
v v - ..^ . %
s "- * - '; ..
h " '''' ^ ^ v "" .,
::;c;o.6i
1.00
0.36
2.02
0.10
* *' s , - ,
0.00
0.00
0.80
0.36
0.52
-, O-- v"1li' -.^ . AH-., in
0.00
* v%
\--0
\" -v r v " ^
- \
0.69
0.35
0.26
0.85
0.31
i hv. < s __
0.12
3.61
v v %s si h h v .
0.75
Rng anal
(R + SR) Average
- ^ - s
0.059
0.039
0.039
0.079
0.138
0,788
0.295
rvrr^v
A1-* ^> * O^' /
1 V-* i* hC
' ~!"
0.079
" . h ^
\ "" - "* h ^
0*197
0.394
0.138
0.689
0.039
0.000
0.000
0.315
0.138
0.177
s v,^ IWAhh ^ ^ v
^ N^ ' v' ^ s*
6.000
, \ ^ s/^
v^ \i x
-^
0.236
0.138
0.098
0.335
0.118
% hh --S
s " V "
0.039
1.720
v. h s h
0.295
" " s .S
" \ % '-. s ^X ' '<-'
v" <"' s '" i>* ' ' /r'"s^v^:-;i
N;/ \-; '^f , t
7.43
h * h ^ 's Vl %""' 5 A ^ 'h
^ ' ^ "" -. 5 ' ^\ --N
%1 S\ '''' J'JhJ' ^ * S --s" \
' " ,^;- ^19:73:-;
- =:*' v:"
14.13
7.70
11.97
15.10
' \- \,:- "
9.80
10.00
vx
12.50
7.50
10.20
:- ^"^S's^^'V^h h"i ^ """--^T
^ tvXs"" ''"' * h""1* X ^ \^' ^
-. \ S S S SIS
11.30
'-s1; - ""'
' """"'- *^ \ ' ""-." "
, "\ ^sV v^^Xs , )
"^- s"-\*\" "WJ * *"'
9.30
9.27
9.80
10.00
10.47
h^ '''- ^v
" - "* "" 0 * * ^ ^ ^
2.87
15.00
M V sW.,_ - ^ ^
O % s" hS * %
4.90
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (knovm) Tag
^ 'vO K "%v J ""'
^^V^'^A'0,:'^
".^v-*;?^^^ ;
-2.78
0.46
0.25
-0.31
-3.16
0\ 18,02" , ' "
^
Vs \
-0.45
,-,-'' *
''"
- !" ', -
-3.04 li
0.19
-0.02
,' . ' "
-0.58
-3.43 U
18.36 x
-0.71
S|?I?S?i.S:^ *:*
V-^u7fJ;iS^
-1.33
-" - v/ ฐ-,v " v- ;- ,- ,,~~ -'
:\-\f , C ป' ,,f , ,;V -> --
\^Vl\t'-''^ ^ SV ^ *. ,
^;-5.^T;;\;v-/-
\:-vl!;c!- v -5'- ,
2.54
-1.18
1.28
3.09
0.03
0.15
N v
1.59
-1.29
0.26
^t^1" \-"?'<' '^\o ^t1 ^F*^ ^\^"" "
^ V"S i?^5 s^s"'-'' ? ^ ' ^ ^ '"'-'
-.1 *" ** C " O"1
0.90
^
-"""' '"' "^ \
"; \v\ ^"-^ s x ^-- ," w"
\ ^ \ h- f , f- i " ss
11 "" s " " % " " !
-0.26
-0.27
0.03
0.15
0.42
h"1 \ ^ s s"^'' !|i" *" * "" ''
- *i " ^ "** ^\^ s o ^
-3.97
3.04
O \ l\% w " h"\ ^ X % "
'*''>'' ' V
-2.80
ft = Above
li = Below
\ ^ '' , ^ .','
-1.60
" .. si h
*" "'" "."" s
5.5<0 x
;=,
2.27
-1.44
1.02 ,
2.83
-0.23
-0.12
1.33
-1.56
p.qo
v ^"" ^^
0.64
*
"" - s * A
i
\^
-0.52
-0.54
-0.23
-0.12
0.15
*
-4.23 U
2.77
\ "v "
-3.06 li
control limit
control limit
-------
30/31
EMSL-LV Intercomparison Study: Performance
Evaluation-A,
20-Oct-1992
Uranium (Natural)
Lab
SB
ss
8T,
SW
SX
3Z
T
TA
TE
TG
TH
TI
TK;-:*" -
TL
_ _ , '
/ml', -
^^^ *''
TN - ' ,
TP
TQ
TB
T8
TT x - ;
TY>" '
tf "'
**"
UA
W
X
Res. 1 Res. 2
1 ' .:"' '"'^
9.9 9.6
- *-*'
r\,-;, -\;V.;',r--\'"
9.7 10.0
10.8 13.3
% '' ^ " v - -s
8.7 9.2
10.5 10.7
' > > ' "" , _
9.6 8.3
10.5 9.8
* -' "- s ' '>-5.' "/'' , \.
j > * * ** \' * o , ^ ^/
-- '>" -r i-''-'v',!?s; -C,;-^
10.2 10.2
9.6 9.6
,' , ' , H- , ,^
'-.,6pปi".;';;.;B4i6';.
^Efiii
-\ '-1-: ; '''^'-' ,","\
; '-' > ,?; "v::: 0
>-/-/,-; -, " ;-; ,/\;"
""t f.f *" j ^ '' ^ .
.. ',/ "I- ,' ;^-vvป-';,.
10.0 12.3
10.3 11.7
Res. 3
./"* "" "%""'
- ,
9.7
10.5
11.7
, ' '
'" V s
^ ,* ^ i. ^
,. .
-\ ' ;-.
8.7
9.4
'",
9.1
9.4
s"
i(
-^
'ป,'-
10.3
\ --''
9.3
;^ o 61.6
'-'".^
f ' ^
,-,-;>* - 1
^ ""
13
; ,
r^V
h' '-,
11.1
9.7
Data
Average
1.30
2.87
3.70
3.90
4.27
4.63
4.90
4.93
5.80
6.47
7.43
7.50
7.70
Tag
x
II
II
II
||
II
II
II
Lab
TV
SI
P
KT
PV
BM
SO
PM
AW
HK
QQ
RM
QZ
Exper.
Sigma
0.15
-. v ^
>. *
0.40
1.27
""
0.29
0.70
0.66
0.56
0.06
0.17
2.24
0,00
^l
N /" x* ' J < - < '
f
1.15
1.03
Rnganal
(R + SR)
0.059
0.158
0.492
0.098
0.256
0,256
0.217
-. ;
0.020
0.059
0.866
0.000
0.453
0.394
Average
Normalized
(grand-avg)
9.73
10.07
11.93
8.87
10.20
9.00
J 's sV
9.90
-s ',- -"
10.23
9.50
52.07
, > \ ! ,
0.00
%',S'
0.19
1.27
.-
-0.51
0.26
-0.43
0.09
' ' *"
0.28
-0.14
24.44
1.30
11.13
10.57
4.87
V
0.80
0.48
deviation
(known)
-? ' "
-0.27
*v "- S "" ""
1 \,-f ,L:> *
-0.08
1.00
-0.77
0.00
-0.69
-0.17
0.02
-0.40
24.17
5.14
! -
0.54
0.21
Tag
V
'- '
- '
:
,
- s
, ป
x
* f
'- x\
*
sorted by Laboratory Average
Average
= No data submitted
0 s Insufficient data
x
7.77
7.83
7.93
8.00
8.10
8.43
8.77
8.80
8.87
8.87
8.90
8.97
9.00
Tag
Lab
BH
GZ
NK
AL
HP
ID
BK
BC
TE
NJ
C
Q
JE
Average
9.00
9.20
9.27
9.30
9.40
9.43
9.50
9.50
9.50
9.50
9.60
9.63
9.63
TAG SYMBOLS
s Determined to be an outlier
Tag
ft s Above control
II s Below control
Lab
TI
PT
S
RZ
CK
NO
HL
CO
BA
TQ
MS
K
DT
limit
limit
-------
EMSL-LV Intercomparison Study: Performance
Uranium (Natural)
Evaluation-A, 20-Oct-1992 31
/31 1
Data sorted by Laboratory Average
Average Tag
9.67
9.67
9.67
9.70
9.73
9.73
9.80
9.80
9.90
9.93
9.97
10.00
10.00
10.00
10.00
10.00
10.00
10.07
10.07
10.07
10.17
10.17
10.20
% responding labs
10* -----------
ฐ -'6 ' -4
Lab
ME
HY
BO
E
SS
CA
SC
RF
TL
OZ
JS
RG
NA
FE
DB
AI
SD
SZ
OS
D
PQ
BG
TG
Average Tag
10.20
10.23
10.27
10.33
10.37
10.40
10.43
10.47
10.50
10.53
10.57
10.70
10.77
10.83
10.87
10.90
10.93
11.00
11.00
11.00
11.13
11.17
11.27
Frequency distribution
Illlll
T - - -l-Tllllf III-T-
Lab
RN
TP
FZ
CG
EB
DZ
J
SF
DE
PP
X
IE
NH
AF
I
FN
GQ
PB
CJ
AJ
W
OY
AZ
Average Tag
11.30
11.30
11.33
11.37
11.40
11.67
11.70
11.93
11.97
12.03
12.23
12.50
13.67
14.13
14.33
15.00
15.10
19.73 x
23.37 x
23.43 x
42.00 x
44.90 x
52.07 x
m
+2 ' +4
Lab
RP
L
JY
NT
CS
A
LT
T
RC
CE
AK
RK
OF
QX
AE
SL
RD
QU
FJ
,DO
PW
PC
TS
" Us
+6
Normalized deviation of the mean from the known value
% responding labs
Frequency distribution
,0: 1::;;;;;::::::::::::::::::: j::::: I;::::::::::::::::::::
.HI..
ฐ -'6 ' 5
.... -Illllllll
f -2 T I T
_ -
. 1
+6
Normalized deviation of the mean from the grand average
s No data submitted
0 5 Insufficient data
TAG SYMBOLS ft = Above control
x = Determined to be an outlier li a Below control
limit
limit
------- |