r/EPA
United.Sta'ies
Environmental Protection
Agency
Environmental Monitoring
Systems Laboratory
P.O. Box 93478
Las Vegas NV 89193-3478
EPA 600/R-93/243
September 1993
Research and Development
Radionuclides in Milk
Performance
Evaluation Study
A Statistical Evaluation of
the September 24,1993 Data
9311-0138/md243
-------
Radionuclides in Milk
Performance Evaluation Study
September 24, 1993
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)
Performance Evaluation Study for Radionuclides in Milk; September 24, 1993.
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
Performance Evaluation Program, and can be found in the Environmental Radioactivity
Performance Evaluation Studies Program and Radioactive Standards Distribution
Program information brochure.
Please take a few minutes to review this report and the analytical data your
laboratory submitted to us. If there are any apparent discrepancies, please notify us
immediately.
We encourage you to make use of the computer-automated data-entry system
that has been in place for some time now. As the number of participants increases,
and it becomes unrealistic for us to receive results by mail or FAX, the computer
system will be our only avenue for accepting data.
If you have any questions or comments, please send a message via the data-entry
system or contact George Dilbeck at 702/798-2104 or Patricia Honsa at 702/798-2141.
Sincerely,
George Dilbeck
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 Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 1 / 27
The following pages consist of separate sections for each of the nuclides in this study with four
parts per section. After the first, each part is separated from the next by a new page or a thick
horizontal bar. The first page of each section is a statistical summary for the nuclide and starts
with a statement of the known value, the control limits, and the warning limits.
The warning limits are placed at two normalized standard deviations above and below the
known value and the control limits are three normalized standard deviations above and below
the known value. If you keep control charts, these values will be useful for anticipating problems
with the accuracy of your analytical methods.
The coin shaped pie chart at the top of the summary page shows the fate of all the samples
sent out in number and percentage terms. The pie chart starts at the top and rotates clockwise.
The first sector represents those participants who submitted analytical results within both the
warning and control limits. The next sector represents those who are in the warning region but
not out of control. The third sector represents those who are out of control, but have passed
the outlier test. The fourth sector represents those who have failed the outlier test. The last
sector represents those participants who have failed to respond properly. This is the case if no
analytical results were returned, or less than three determinations were reported, or if the results
were received too late. The reeding on the edge of the coin is spaced at one percent intervals, and
the sector shading becomes darker as the data reliability decreases. Sectors with zero width are
not shown.
The table in the center shows a number of statistical quantities calculated from the submitted
data based on the mean and median values in relation to the known value, both before and after
outlier removal. The lower pie chart uses the same construction as the upper chart and shows
the distribution of properly submitted data in terms of deviation from the known value divided
into sectors representing one, two, three, and greater than three normalized standard deviations.
The second part is an alphabetical listing, in lab-code order, of submitted data and several
calculated quantities. An entry that is shaded has been rejected because of one of the reasons
listed above or failure of the outlier test. The fifth and sixth columns are a measure of laboratory
precision. The Range analysis is a normalized value that you may use to keep precision control
charts. 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.
-------
2/27 EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993
The Range Analysis(R + SR) is calculated from the range, mean range and standard error of
the range values. The range is the difference between the maximum and minimum results for the
laboratory. The mean range is calculated by multiplying the expected precision by 1.693(for three
results). The standard error of the range is calculated by multiplying the mean range by 2.575(for
three results), subtracting the mean range from this product, and dividing the result by 3. If the
range is greater than the mean range, then the range analysis is calculated by subtracting the
mean range from the range, dividing the result by the standard error of the range and adding 1.
If the mean range is greater than or equal to the range, then the range analysis is calculated by
dividing the range by the mean range.
The normalized deviation of the mean from the grand average is calculated from the deviation
of the mean from the grand average and the standard error of the mean values. The deviation of
the mean from the grand average is calculated by subtracting the grand average from the
average of the laboratory's three results. The standard error of the mean is calculated by
dividing the expected precision by the square root of 3(the number of results). The normalized
deviation of the mean from the grand average is calculated by dividing the deviation of the mean
from the grand average by the standard error of the mean.
The normalized deviation of the mean from the known value is calculated from the deviation of
the mean from the known value and the standard error of the mean values. The deviation of the
mean from the known value is calculated by subtracting the known value from the average of the
laboratory's three results. The standard error of the mean is calculated by dividing the expected
precision by the square root of 3(the number of results). The normalized deviation of the mean
from the known value is calculated by dividing the deviation of the mean from the known value by
the standard error of the mean.
A complete explanation of the statistical calculations involved in the report may be found in
the Environmental Radioactivity Performance Evaluation Studies Program information brochure
[Draft Revision of EPA-600/4-81-004], available from George Dilbeck, EMSL-LV, 702/798-2104.
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 3/27
Strontium-89 Statistical Summary 111 Participants
The known value of this nuclide is 30.0 pCi/1 with an expected precision of 5.0; the control limits
are 21.3 to 38.7; the warning regions are 21.3 to 24.2 and 35.8 to 38.7
70(63.1 %) Failed to respond
2(1.8%) Outliers
15(13.5 %) Out of control
but not an outlier
Statistic
^.-20(18.0 %) Within all limits
Respondents
4(3.6 %) 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
27.41
18.80
353.62
68.59
-8.62
-0.14
24.33
-18.89
-0.30
Grand Avg 24.03
7.52
56.57
31.31
-19.91
-0.79
24.33
-18.89
-0.75
17(41.5 %) More than 3 norm. S.D..
4(9.8 %) Between 2 and 3 norm. S.D
11(26.8 %) Within 1 norm. S.D.
' of known value
9(22.0 %) Between 1 and 2 norm. S.D.
-------
4/27 EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993
Strontium-89
Lab
.A,-.,
-AA?
AE
ABf;
",,AI r
;!!AJf*
AK
:" ^AT^^"
x1* A** ;;!.'/
^ ^'lkii.^S
'TxApi\
yV % ฃ s xV
":AP"''
^AU
BA
BC
f.$gj
BH
^BL.r
;^BMv
> ID rf"^ ^
v j..py ^^ %>
f-nw;;
C
CA
,,,9JL
"X^,, h '"
:~,,C>,i^*>
Res. 1
_J1.0_
>v '-'7' *
31.0
l^xrV v,
\V:S>xj;;'
V\,!;Y<%;/ '{":
,yvvr^^v
27.0
..- ^> ./... .^v .*.'>.:> -^
^ - ;, x --v* sjA^*.
v-"1 & f^\s
32.0
22.0__
^*!^s%X^
:f:/ft-i6lcfe;^
Ii!'*^xit7jx^ซ,
30.0
18.0
39.0
S^'Sl^fJ
%sv'^%w ,\""it "'^ ป
Res. 2
29.0
""' -' '*,'\- v- '
28.0
'V^k;^.'
. ,.,., , ,i,.,,,,/, ' ..
' s' "''
> f%':- "1 ^ Ik"'
30.0
N ^ .-^ > - s.^ j '
Jf ,?f " V^^ , .. v ^ ^v"" <
V ^it* * f^;*%^ %'^ "3-$'' \ ^
"" ^ i *\" " %
^ .-,w fff .^v'ฃffffฃ,- ^ vr-''-v'ฃ
'V^^v^;-^'
. ,1-P...
29.0
JB.O^ _
1 ' V ' - '>,' '-
32.0
. ^4ฐ:1
/tff^l^/v'i;^.';'')
''?K^6^;d;''?i2
;3"'-?|^' \1^|'^'
29.0
19.0
32.0
^B'SrH^T'*?
">*,">:* ^ -'^'-'''""8,'
Res. 3
28.0
30.0
, * '
, '- -;"
>:^'.x^"
31.0
^ - J . "*'," ;=
*" % * / < ^ ^
-.'''''
''X ". '^'''' i-''1'1' "" S
-A -. ""' ' """
22.0
30.0
6.0
\
35.0
19.0
,'ix ''"'V . ', ',
s/|4 * \
^(dfiP>ฐ ซ.. X- >^ ^j^ : , -V V?^ /'' -' <='- "!" ><<" - - s '
D
Tiiia.-il-L''^
*"lt ilB^v
,;;.,. JfJJtf^-.
OE
^,**..~ V^V*
JJJIily
fiBMP
DT
.E_
EB_
EL
5J3X'
FE
!ป
HU
24.0
^ s Y^fc^x^^i^S-CC
^^C^/V''^ '*-';
15.0
*.s i ^w^ ^ ^^^ ,.rป^f^^"
?r -jf^f 'i'-llUf ^
^x^f^^f^K
25.0
20.0
26.0
26.0
4.- ,,~<
35.0
-^'^'!l^"" ^f ' i
12.0
24.0
% ^7 x\ ^K^^/'^\.^
Y<&: '-' * V-f^^t^
15.0
^'.>^ ^-: .v.v.*' ,-* ^v*. '
y< '-j-C^'AXV.'}?!^-;
^%^2|;^:
25.0^ _
20.0
32.0
29.0
34.0
;v>r'v;-'
11.0
25.0
\lf\ ^ C?** '
'*--"' "" """'- "
15.0
A-.-.-.W .*.-.' ' . .
^ %s- '-'i. x % ^ ^
rf \ ft ' > '
\$, ซ? -" ^ y
25.0
27.0
30.0
29.0
31.0
- >
13.0
= No data submitted
0 s
Insufficient
data
x =
Exper.
Sigma
1.53
1.53
,- - ;
' ,
2.08
s\ *
.-., .-
'-/"= \ "" -
13.43
0.58
0.00
1.73
1.53
"/,"' - -
11.14
1.00
1.53
3.51
...;
\ . j v ''
0.58
vv vv "
*T -
0.00
V^ ' ^
0 -f ' '" "'
Cv , ', .
0.00
4.04
3.06
1.73
2.08
1.00
Rng anal
(R + SR) Average
0.354
0.354
0.473
4.721
0.118
0.000
0.354
0.354
4046-
0.236
0.354
0.827
0.118
"'
0.000
0.000
0.827
0.709
0.354
0.473
0.236
29.33
29.67
- , ; , .
-, , ' "'
.'"''" '' ' "
29.33
, '" s<*
"" "" " % ' ' " ' '
16.33
29.33
6.00
33.00
20.33
'^ '"-: \ - '-,': +
'] '^.SB'iOO '
1 - ,ss - ,:'.'
29.00
19.33
35.67
24.33
;:-. ^ > ^ -
>
15.00
.... "
25.00
' -1 .'*"
22.33
29.33
28.00
33.33
12.00
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
1.84
- ',, i.' " '
1.95
,"' '" '"', "' *Vv
-:, " ,/:"^
'-''"-: >"^r>
1.84
, , ,.. , ,.x ^ - ,,, , s , .. -^
^ ,-H ^ ,^ , ^ซ. ^ ^'^ __ ^
/ ' f'f ~"~ s ^ %
S.... .. ,* /.... .. : -'._ .... j>.. ^
>s ' ;;'/ '"! -'""-' /'-,
-2.66
1.84
% -6.24
; . ' ' '
3.11
-1.28
V-,>'- v'-'"\-,,f
,' ป, 11,08." ' '."^
-1'"-' '"^ -'--V'-v
1.72
-1.63
4.03
: - : ,s;
v '' ' -
^ .
0.11
- v^ vr^;' ^ * ''' *' * "^ v
'-;"'-' - ;,-,
-3.13
.! % " ^ -' ' " .- .- '
' s $ f "^"-^ \ ' C"'
%"' s **' s " % "'" % - "^
0.34
-0.59
1.84
1.38
3.22
-4.17
It = Above
U = Below
-0.23
v~ ': --'-> --,
-0.12
^X. ^^ --^^'1: ^% ' ^
^1 .! ^. ^ J Vjv ,*
' ' '' \ , * >' '
f'~^'-: 7- -'':':
-0.23
Jf V^ ''' "X " - "^ ,
"* #v* !: -' - - '- ' ' ,
" " + -
i _f< 5 s'
:'"" :""' '"*?'-;'
-4.73 11
-0.23
,-ML A..
,'','-'.'' - ;
1.04
-3.35 Ji
r^Y^<';AH*;!>'>
' O,ft*l S* * v j '
^-x^V J,; ^ ^A ^,s
x?;v'-/">-'',V-"/'^<"-
-0.35
-3.70 11
1.96
,\ - '*- f ;
\ -J X" " ! '. !'*- '* "
j* ^
-1.96
^^^^w>v %^^^, ^.t ^
:- -,',- ' :, *'
-5.20 11
-/ S >.- S . *
-i1; '< '' V'*'V
>' * >** *.ป '
-1.73
-2.66
-0.23
-0.69
m
1.15
' ., ' .-' *
-6.24 Jl
control limit
control limit
-------
EMSL-LV Performance Evaluation:
Strontium-89
Lab Res. 1 Res. 2
IJ^TZZI^M^!-
'"KX""^ 26.0 28^6
MQ 19.0 24.6
ffi^ฃ|!|W>ii^%W|^P^^P^iWKฎiPffi^
]NZIZZ^ZZZ|2.63
I^Z~Iง^~1Z^I
PB 20.0 "" 18.6
JPC ..._._. _34.ฃ __..J31;
_^m22.0 4.73
'''~28ti 3.00
IIZ5M..1.L 8.-ฐ0.
"'"'" 17.0 "'"i.53""
Radionuclides in Milk, 24-Sep-1993 5/27 1
Rng anal
(R + SR) Average
.IJ>^!~I]$M^
Z?r236 1;.I"7IJlrIC
!.Zj?:ffiZZ'Zl?Mf
v.vSv'J;;>S|S:j;:;i;:;;;^^^
:|:ij>JS;:>>;.::>;:;;:;r|:::;^^
0.236 31.33
Si-SwwSs^^
IZ?iiiIIIIIII^
023^ 18.67
0.709 ...,...31,00_
0.709 24.33
J.120 20.33
iSi-i^ftiji^SM
0709 23.00
2.695 43.00
.,;''. .:" ;., ,',"..,. ";'.'.:; "_,'; .'V'|_- .:::;:;::;:r::::y:::'::!i'i:i:|:i;;:j;j^Sv^:>-:i:iS:|:;:::|!|
^'^^^i^M^^^^^S^^^^^tt
0354 16.67
TAG SYMBOLS
x = Determined to be an outlier
Normalized deviation
(grand-avg) (known) Tag
III^^ZZI^LZIZI
'. IZIyl.1 ZI-M?" Z,Z
""^^ ' -6.82 "7" ^-2.89
ฃ53" 0.'46
^^^^iS:::?:::>:::::;::i:::W^^i:::งl^^
ZIZIjiZZIIrlrHlZlZ.
-1.86 -3.93 1).""
ajlJZ^^ 0.35._...
0.11 :1.96
ZZI^ZZI^-?L^Zl.Z..
-036 -242
ZZlMiZ Zฑ?.9.IZ?. '.....
"-2.55" ^ -4.62 ii "
tt = Above control limit
11 = Below control limit
-------
6/27 EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993
Strontium-89
Exper. Rng anal Normalized deviation
Lab Res. 1 Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known)
\RG\- ' " : * <'<*A, ^W' *'%ฃ?$^>*l- -,*,
^R^\:;";^O S^"li2KS;=?4 '; : is
7.6 6.00 1.796 131.00 37.06 34:99
Tag
-.-,ป '
x.
S ^ _16.0 >% _ _ 17.0 18.0 1.00 0.236 17.00 -2.43 -4.50 U
'iSlML', ' -;"'- '""iAr v\s "*>" o'jV.v-'^-' ''
.. ...... .... \. ". .. ' * *
^ *
SS 26.0 25.0 22.0 2.08 0.473 24.33 0.11 -1.96
T 23.0 22.0 24.0 1.00 0.236 23.00 -0.36 -2.42
^^ ' ^ " " %->Ov % * "> V^^^Ffy. VjXX '^A "ft1* ^ ฃ"* _.v-'-\ "fvv i / -.''
-' TA * "V * <"" ""- * - r t "" - ; t-X '",'" ,**? \ ''..-" V 'ป <" ^ "' " s '" \
^ ; .. * <>\% '., * \'' s tV ^ f' -i^1- I'^A"'ป%l'r- ^'^V*- '"'-.''';'''" " s Vs*
", ^ ^ / f f . \ "-^ V Y ^ ^ - ^ ^ s ^ \ - A
, _, .. ^ ,,, , , , ,'..;,; x"< " ,;,,,,'- , ^ ,\
S '. ' , -. ' ' * , * 1 "-.''j***'''
*-,ฃ'*
^
* "* \' i )
y^^K^JI^S^SVl?^^^!^ '''//, i -:.,'.-. ,,L^X :. ^/^^^'vv., - 0-5
^^JTCJ '"-.'; ""''J^t^sC^tS'X1'*^^ ?.Tx>*'f\V '''^^ ^ ^<-> *' ^^C/^ \'^ ^^ ^
Vj-'i'Jf* ;\rx*'^ ^^^'-.^l-f'^l* 'f""!^ X'!"!}i": s'"'-'\' ;
^' ' ,' , ' ' " ' ~ '-','" ! ,"';,
s".,'>: - \ *''"'','" >'-- * \v""! 1'\"tv'1'i
' ''i* : S ^ ^ ^ % ^ v ' - * ' I, * \ . "\> %
-''*"'-'':>,", " , ,., ", ' ,',' ,,, '- - ",/'""''- "- '% V' '''
- .',
,''' *' -'
'- * - ,'"'
TQ 26.0 29^0 . I26-0 . i-73 ฐ-354 27-ฐฐ > ฐ3 -1-04
^Jp^^-'/j)-':!!";^ ^feปX^-: ^1lsX "?'''? ^X"
-'?ff*t*X^5sif "'"^('r'^i.yV"^','''^-''^'"-* T'"*- ' !->~"><"-' '
l^^?^^'<^-^^%ti^ ^lll* v i
:,fTW!^r\{ ^ x 7- >'%'"',^'i*-f*?-,t ,-C - v-'y \\j,<; : / ^
\,'X ;,v/ \ \ /:'" 'X" ';;:'\\"'''; V1
"?< - "* " - "" ^ ,- ^ i r ^
' -. " ' j \ f ^ f , . " " . / s"
. ป. ,
A *"\,"
T- - , '
U 23.0 26.0 26.0 1.73 0.354 25.00 0.34 -1.73
^y^^^^^^l^ll^l^f^Jff;;
IvT"", ^ *,^ ซ ^ , ^ / ^ ^^ssy ^ ,^ ;^_^';-^v^VV" "V.,.. - -" x^,rsV'^
VG 17.0 20.0 19.0 1.53 0.354 18.67 -1.86 -3.93
W^ 21.0 16LO_ 23.0 3.61 0.827 ,20.00 :^39 ^3-46
-.'"WAV >''' " '' >'>'ฃ': <'>*>.., , -C ^ '/ '" : , v ^"!
11 ^ -. ''
. : '"";
11
11
*
Y 31.0 32.0 29.0 1.53 0.354 30.67 2.30 0.23
Data sorted by Laboratory Average
Average Tag Lab
6.00 11 BC
7.67 U NJ
12.00 U HU
15.00 11 DE
16.33 11 AU
16.67 II R
17.00 It S
18.67 II VG
18.67 11 PB
19.33 Jl CA
19.67 11 J
20.00 11 W
20.33 11 PT
s No data submitted
0 = Insufficient data
Average Tag Lab Average Tag
20.33 li BL 29.33
21.67 MQ 29.33
22.33 E 29.33
23.00 T 29.33
23.00 Q 29.67
24.33 SS 30.67
24.33 PM 31.00
24.33 D 31.33
25.00 U 33.00
25.00 DT 33.33
27.00 TQ 35.67
27.33 KX 43.00 ft
28.00 EL 56.00 x
29.00 C 131.00 x
TAG SYMBOLS ft s Above control
x = Determined to be an outlier 11 s Below control
Lab
EB
BA
AK
A
AE
Y
PC
N
BH
FE
CJ
QL
BO
RK
limit
limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 7/27
Strontium-89
% responding labs Frequency distribution
10- - -
f ! fl f >
-6 -4 -2 0 +2 +4 +6
Normalized deviation of the mean from the known value
% responding labs Frequency distribution
10-
-6 -4 -2 0 +2 +4 +6
Normalized deviation of the mean from the grand average
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24~Sep-1993 8/27
Strontium-90
Statistical Summary
111 Participants
The known value of this nuclide is 25.0 pCi/1 with an expected precision of 5.0; the control limits
are 16.3 to 33.7; the warning regions are 16.3 to 19.2 and 30.8 to 33.7
61 (55.O %) Failed to respond
1(O.9 %) Outliers
11 (9.9 %) Out of control
but not an outlier
Statistic
/ 32(28.8 %) Within all limits
Respondents
6(5.4 %) 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
21.40
11.34
128.65
53.00
-14.40
-0.32
22.00
-12.00
-0.26
Grand Avg 19.97
5.23
27.36
26.19
-20.11
-0.96
22.00
-12.00
-0.57
12(24.O %) More than 3 norm. S.D..
6(12.O %) Between 2 and 3 norm. S.D.*ซ
17(34.0 %) Within 1 norm. S.D.
of known value
15(3O.O %) Between 1 and 2 norm. S.D.
-------
9/27 EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993
Strontium-90
Lab
A
AA
AE
AF
AH
AI
:AซF-
AK
AL
,AN;.
:,;AP\
AU
AY
>- A2ซ"
BA
BC
BG
BH
BL
' X A\j^^
^HMl
BO
' 'TMUT-
V
CA
CJ
CO
^ f^jpt-
'' '^^ <
D
"< :. \ i *
;" ฃKEKv
DE
-^w i\ " .- ^
:>|H*;
DT
;:b*
.B
:-;jfiA!
EB
EH
EL
FE
*%!?
fjfaf
vV'\3tM'-
HU
Res. 1
22.0
20.0
24.0
25.0
:,! ' ' ; v
23.0
22.0
>;;,-;, i;,,:f--!\
20.0
21.0
' >;. -"'
19.0
7.0
20.0
21.0
21.0
"*_. v. v* -\ *.ฃ/ ^ ซ-X^ " ":ป
^'V\f rp ^ ^ ^/ * ^
12.0
'' ^,v\^-" v^5 ^* ,"' *
22.0
22.0
23.0
_11.0
'# * " ^ v , -
24.0
. -.-JS^ X.. IJW.JW'V^ .V SAVb^ *,
^; -">^v of^** V ""-" ""^v
15.0
>^^ ; ,#. 'vvy *''**/ " ?'
^S^S?-??
22.0
5":i '4 " '^{^=:
25.0
17.0
/ .. <(. %
23.0
24.0
s,T'/.;Sj: ';v?r,''.I
; " J."~ _ / 1% >'
-^ /J ," -^'^ '-^ ' '
22.0
Res. 2
21.0
18.0
25.0
27.0
*'!, "v
' V ' -' '' V-
21.0
22.0
,,!-" \',r'"x ,s <,
^\'*\}\
19.0
21.0
'-/- ;"-'
18.0
6.0
24.0
20.0
23.0
'Vf -/If" ' V ",, ^jw
^S^s^ ;*'''$..
13.0
4'- ;';",;lA" i-vf!"
22.0
22.0
23.0
12.0
- - ':-4i **
23.0
s ^fr tVfJWff*t//t\4./^ "
\ !A^ ! fr? ^" S^C
15.0
'" '?"&* "\"Jf? r< ft,' 'A
?~v^St
23.0
ป'vW^
26.0
'
19.0
24.0
24.0
^ / *v t,tV., %% ,
V' 'i-;-,,-'^^
22.0
Res. 3
23.0
23.0
23.0
26.0
~ ' , '
20.0
22.0
'-."' /_- c-v";
-<-v\'>:-. -'
17.0
19.0
17.0
6.0
22.0
23.0
21.0
"* f oVJi," * ' t* * \% '
^y " -'"' tsป, ,
12.0
,-- ''-' . r-r-""'"
22.0
22.0
26.0
10.0
' ; ' - ,
23.0
^^^A^^ jv :: f s^-... ^ f.
"^-\^ - ^""*" ^C ', *
15.0
>s "/% * C1* ^ *'* ' .' ^ J /
r5S^3?
22.0
'\> V'-";' -
26.0
20.0
21.0
22.0
"" ', I ' " ,
' * " f
22.0
= No data submitted
0 s
Insufficient
data
X 3
Exper.
Sigma
1.00
2.52
1.00
1.00
1.53
0.00
1.53
1.15
1.00
0.58
2.00
1.53
1.15
' -, v <
V \ ' ". , " %"
0.58
0.00
0.00
1.73
1.00
0.58
".. *
V
0.00
^'-^ "> - , ' '' ' ""- "
^r.j: .1 /'.
0.58
0.58
1.53
1.53
1.15
0.00
Rnganal
(R + SR)
0.236
0.591
0.236
0.236
-
0.354
0.000
-
0.354
0.236
0.236
0.118
0.473
0.354
0.236
0.118
' j
0.000
0.000
0.354
0.236
0.118
0.000
-, ..,
0.118
0.118
0.354
0.354
0.236
0.000
Normalized deviation
Average
22.00
20.33
24.00
26.00
- """ ,*
21.33
22.00
" *'Sf~
.'\ '' -:',
18.67
20.33
18.00
6.33
22.00
21.33
21.67
'' $*? ? * " "'*'
' ' ^ * -.'
12.33
" ^ ..' -V-1
22.00
22.00
24.00
11.00
23.33
, A r.
15.00
V" "~ ^ : '
22.33
25.67
18.67
22.67
23.33
22.00
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
0.70
0.12
1.40
2.09
% * , ^
- "'
0.47
0.70
'.;" ';'-'-i '" ' ' ' - c
'-"";- -\ -; .-^ ^
-0.45
0.12
-0.68
-4.72
0.70
0.47
0.59
.r v ; * ^""^ "V f \ ''?* *..
-;,; " "' * $' ': ,."Vi *"'*
-2.65
", ' v- -\ '* ?
0.70
0.70
1.40
-3.11
1.16
" > ..ซ..( V v^ t^t ^ ^ ^
*."" - -' ? "
-1.72
\ ' ' * " * ^ % - % ^
' T' '-';{ : -'---- ^-^;'-
0.82
p. *
1.97
-0.45
0.93
1.16
0.70
1t 3 Above
II = Below
-1.04
-1.62
-0.35
0.35
" , "-'',/
"''". v * '
-, , -' : ' '
-1.27
-1.04
;\' ':".:" ,;"-'-ซ-'"-
-': ">" '- '* /
-2.19
-1.62
\
-2.42
-6.47 II
-1.04
-1.27
-1.15
X1 ' ^vx f""1- '* "" ''s" *" " ^'j
,-'/V --X'>*'^;
-4.39 il
- 'f ,' !,' !\* . ' A< ,V
-1.04
-1.04
-0.35
-4.85 II
/.".
-0.58
/ .-. ^t, t' *ฃs >ซ>
>- ,-' 'i-,, ***. ' , -
-3.46 II
VC ' s , f TV ' "" ' . <'- ^
'L --^V'-,*;^
-0.92
, *
0.23
*
-2.19
- '
-0.81
-0.58
',,*v , ,i.r.'. "
ฃ
-1.04
control limit
control limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 10/27
Strontium-90
Exper. Rng anal Normalized deviation
Lab Res. 1 Res. 2 Res. 3 Sigma (R + SR) Average (grand-avg) (known) Tag
1.15 0.236
26.67
2.32
0.58
^5j)SS^^c?>*:W:."VV. - -
MQ 29.0 26.0 27.0
;;
^^>4ir^:s?!-,'>^'-A'\~-xซ?-"--A=.r7.- "V > . ^ . - -
19.0
_.ป-_..ซ ,
1.53
1.73
1.15
\
0.00
0.58
t * \ s
1.53
1.53
1.15
3.79
0.58
0.118 24.33 1.51 -0.23
0.118 22.33 0.82 -0.92
0.354 27.33 2.55 0.81
0.354
0.236
-. ^
0.000
0.118
0.354
0.354
0.236
0.827
0.58 0.118
0.58 0.118
0.118
18.00 -0-68
-2.42
10.00
JL1.67
; .y i-.^-'^
23.33
23.33
21.67
19.67
30.67
13.67 -2.18
15.33
-3.45 -5.20
-0.58
-0.58
-1.15
-1.85
1.96
-3.93
1.16
1.16
0.59
-0.11
3.70
-1.61
-3.35
li
,ซ,
xป
= No data submitted
0 = Insufficient data
TAG SYMBOLS
x = Determined to be an outlier
ft s Above control limit
II = Below control limit
-------
11/27 EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993
Strontium-90
Lab Res. 1 Res. 2
-EC, ^"'v;\;V. v '>/;,;
JttK 91:6 98*0 1
S 14.0 12.0
;'SM-V~7;r"- >; -"Af^
SS 24.0 24.0
T 18.0 19.0
rtrt A "" t ,. ^ 5 "" s % "" % ""
* *Tป ^ ' >* ^ \ %v .- , - > -.J"
ซinxv" , ,' -, K-I^O -V, - ' ,., ' ! "
. TE .; -';\ ,"-> "\ ~'~' v'~
,^rr.%v ',;.\ ->Xv '::-'*"
TQ 18.0 16.0
* ป ^ - " ".; j - ' I1*'" r >. ? f ^ -v
""',.ฃซ* < ' .***'' ':'' ^" * '/ ' -''-'"
^ l-'-W- ^V- -%, "-- ซ s, -s- ,.' ' -- ;' ;_-x x ,
U 22.0 23.0
VG 14.0 14.0
W 21.0 23.0
'"'WA "* " ''" " "~" '-~^~' '' ''; -"!'" s "
Y 22.0 22.0
Average Tag
6.33 U
6.33 11
10.00 II.
11.00 II
11.67 II
12.33 U
13.67 U
14.00 U
14.67 U
15.00 II
15.33 U
17.67
18.00
18.00
18.67
18.67
= No data submitted
0 s Insufficient data
Exper. Rng anal Normalized deviation
Res. 3 Sigma (R + SR) Average (grand-avg) (known)
, ' * - " , "* st %
86,0 6.51 2.020 9133 24,72 22*98
16.0 2.00 0.473 14.00 -2.07 -3.81
25.0 0.58 0.118 24.33 1.51 -0.23
19.0 0.58 0.118 18.67 -0.45 -2.19
.-'' ,...- ^ - . .-.- ,- .:::. ' ^ .*.: \' ; "s . ^ " , - ^ ..
";""", ^ , , J __ * ^ , ," " "\- - ' "'--",. --
'- S ' %A " "" ' ^ "* ...."!.
-. ,' ,--V-/ .-. " :> - ; ->\v /"-'--- -: ->-'ซ, x ,; "';-' r ---
19.0 1.53 0.354 17.67 -0.80 -2.54
V,V ,'" "'' \-''^' * " ' ' , * * , -'" ~'v* " '* "\ ?"*< '* * * ' t ! , ',, ?S"^ _ >-\--,
22.0 0.58 0.118 22.33 0.82 -0.92
16.0 1.15 0.236 14.67 -1.84 -3.58
23.0 1.15 0.236 22.33 0.82 -0.92
-,,,/ " y ''-=" ' -\ -' -,,"">"* ,' ,-- \: '' "'. '--*' " ~';>T "''
22.0 0.00 0.000 22.00 0.70 -1.04
Data sorted by Laboratory Average
Lab Average Tag Lab Average Tag
NJ 18.67 AU 22.33
BC 19.67 PV 22.33
PB 20.33 AY 22.67
CO 20.33 AA 23.33
PC 21.33 BH 23.33
BO 21.33 AK 23.33
QL 21.67 PT 23.33
S 21.67 BL 24.00
VG 22.00 Y 24.00
DE 22.00 HU 24.33
R 22.00 CA 24.33
TQ 22.00 C 25.67
N 22.00 BG 26.00
BA 22.00 AL 26.67
T 22.00 A 27.33
EB 22.33 W 30.67
22.33 U 91.33 x
TAG SYMBOLS ft = Above control
x = Determined to be an outlier II s Below control
Tag
'* ,
x
11
' ,-*; -
0
*
;
* - *
: i
7 ^r;ป
Lab
L
DT
EL
PP
PM
FE
D
CJ
AE
SS
KX
E
AF
J
MQ
Q
RK
limit
limit
-------
ง
1
...1 .11 .1 1
1
1
. .
I ....
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 12/27
Strontium-90
% responding labs Frequency distribution
20-
10
' sf ~ ~ ~ ~ ~ ~ II ~I.B
i mmm mm ii.iii
5"
Normalized deviation of the mean from the known value
% responding labs Frequency distribution
20-
10-
A'5'5'JT
o "4 "* w
Normalized deviation of the mean from the grand average
1
_-___-__ -. _ _ _
..1. .11. II
I
.III I ...
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 13 / 27
Iodine-131 Statistical Summary 111 Participants
The known value of this nuclide is 120.0 pCi/1 with an expected precision of 12.0; the control limits
are 99.2 to 140.8; the warning regions are 99.2 to 106.1 and 133.9 to 140.8
21(18.9 %) Failed to respond ซ%
6(5.4 %) Outliers *
1 (O.9 %) Out of control
but not an outlier
Statistic
74(66.7 %) Within all limits
Respondents
*- 9(8.1 %) 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
120.07 Grand Avg 120.12
17.87 8.37
319.42 70.09
14.89 6.97
0.06 0.10
0.00 0.01
120.50 120.00
0.42 0.00
0.03 0.00
7(7.8 %) More than 3 norm. S.D.
9(10.O %) Between 2 and 3 norm. S.D.
55(61.1 %) Within 1 norm. S.D.
of known value
19(21.1 %) Between 1 and 2 norm. S.D.
-------
14/27 EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993
Iodine-131
Lab
A
AA
AE
AF
AH
AJ
AK
AL
AN
AP
AU
, AX
BA
BC
'""'JJ'L^^^
Res. 1
130.0
116.0
111.0
117.0
112.0
130.0
122.0
117.0
114.0
118.0
116.0
123.9 _
121.0
125.0
'?* 1 "" V,,T^ j^* ?,$""*
Res. 2
128.0
119.0
116.0
128.0
105.0
130.0
123.0
116.0
114.0
118.0
119.0
133.0
123.0
119.0
/* v .v *- % i.-
Res. 3
126.0
115.0
112.0
122.0
107.0
130.0
123.0
117.0
115.0
112.0
115.0
154.0
128.0
124.0
j. ' "s '
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
2.00
2.08
2.65.
5.51
3.61
0.00
0.58
0.58
0.58
3.46
2.08
15.82
3.61
3.21
0.197
0.197
0.246
0.541
0.345
0.000
0.049
0.049
0.049
0.295
0.197
2.002
0.345
0.295
128.00
116.67
113.00
122.33
108.00
130.00
122.67
116.67
114.33
116.00
116.67
136.67
124.00
122.67
JO
1.14
-0.50
-1.03
0.32
-1.75
1.43
0.37
-0.50
-0.83
-0.59
-0.50
2.39
0.56
0.37
t : v.
1.15
-0.48
-1.01
0.34
-1.73
*
1.44
0.38
-0.48
-0.82
-0.58
-0.48
2.41
'9
0.58
0.38
C-BCrX^ '.* ^H^p^'x^V'S/-;* ^$^f\'" """"', A , ' ' ^ \ \ ," " '" ,,V/?'V
BH
BL
BM
BO
C
CA
CJ
CO
CP
CQ
D
DD
DE
''jJii"
DM
DT
DY
E
EA
EB
EH
EL
EX
101.0
119.0
128.0
117.0
\ *< *- x 4*
124.0
121.0
130.0
119.0
122.0
124.0
118.0
126.0
118.0
S'\>'-'V''V-;i|;^^
118.0
122.0
125.0
113.0
119.0
112.0
116.0
119.0
145.0
; 66;0
96.0
115.0
120.0
122.0
122.0
130.0
130.0
114.0
123.0
138.0
121.0
129.0
118.0
^V*^iS;E<^
118.0
124.0
124.0
122.0
118.0
116.0
116.0
118.0
134.0
V 6&0
102.0
117.0
128.0
118.0
120.0
125.0
120.0
114.0
122.0
132.0
113.0
126.0
119.0
X- % ^'1 if
118.0
131.0
127.0
120.0
117.0
120.0
108.0
122.0
123.0
^J&.^v C- (l^O#V;-5vv;-. ^^Chi ^ - '' l&O,
:';ea&
HU
- ; "->,; ;cf '" ซs
$n\ --v; *" --,i- !-
101.0
,*' " -;. 'ฃ v ^
103.0
<;'?-;, *:' -
105.0
3 No data submitted
0 =
Insufficient
data
X 3
3.21
2.00
4.62
2.65
2.00
4.51
5.77
2.89
0.58
7.02
4.04
1.73
0.58
' , *
0.00
4.73
1.53
4.73
1.00
4.00
4.62
2.08
11.00
6,11
0.00
2.00
0.295
0.197
0.394
0.246
0.197
0.443
0.492
0.246
0.049
0.689
0.394
0.148
0.049
0.000
0.443
0.148
0.443
0.098
0.394
0.394
0.197
1.158
0.591
, 0.000
0.197
99.67
117.00
125.33
119.00
122.00
125.33
126.67
115.67
122.33
131.33
117.33
127.00
118.33
118.00
125.67
125.33
118.33
118.00
116.00
113.33
119.67
134.00
60,67
12.00
103.00
TAG SYMBOLS
Determined
to be an
outlier
-2.95
-0.45
0.75
-0.16
0.27
0.75
0.95
-0.64
0.32
1.62
-0.40
0.99
-0.26
-0.31
0.80
0.75
-0.26
-0.31
-0.59
-0.98
-0.06
2.00
-8.58
-10.61
-2.47
tT s Above
-2.93
-0.43
0.77
-0.14
0.29
0.77
0.96
-0.63
0.34
1.64
-0.38
1.01
-0.24
"; \, " - -*;'
-0.29
0.82
0.77
-0.24
-0.29
-0.58
-0.96
-0.05
2.02
-8.56 X
-15.59 x
*
-2.45
control limit
li s Below control limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 15/27
Iodine- 131
Lab
I
1C
IU
J
JR
JS
K
KL
KX
L
Hj^r
^i
LF
?งt"i'-ซs>v't ^?
^JtMfc
LR
M
MA
ML
MP
MQ
MV
N
TNHx
NJ
O
PB
!Jpcp
PI
PM
PP
PT
PV
HI
Q
QJ
QK
QL
.M,
%Q5Z "
f*||A^
Res. 1
125.6
118.0
120.0
121.0
122.0
112.0
114.0
124.0
118.0
111.0
^T^fJWfi?*
SlSsSS
120.0
^"^^X^^^^t^^^
i t..
^Iw'^tV-*
110.0
~:f s-ji'w^ฅ*v~ -.lifc8:0^x^
120.0
118.0
125.0
;ง'Sฅ?vx'"
123.0
130.0
136.0
113.0
127.0
* x|^->^jt03BiVv it ^--^V^
108.0
120.0
134.0
121.0
136.0
-t'l" ',->/-- ' ' i
_"ll5.0 "_"
Res. 3
118.0
115.0
114.0
119.0
119.0
101.0
114.0
136.0
118.0
108.0
.y -. *" ""C """'" % >
14410
120.0
"S^V *s-^WW^\.\-o^
; ^ ; ;x -\
101.0
106.0
114.0
119.0
125.0
112.0
129.0
126.0
2i8;d
130.0
117.0
125.0
v\C v""
12LO
130.0
140.0
119.0
131.0
fi^:
113.0
;150.0
120.0
133.0
96.0
131.0
118.0
s No data submitted
0 =
Insufficient
data
x =
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
5.57
1.73
3.21
2.00
1.53
5.57
0.58
8.33
1.73
1.53
0 v *" ^s^%<' *"" *" X%
48.69
5.77
- \\V\- ..V."- - ; w ""
"," V" :- " -
2.89
3.51
2.52
5.00
3.79
8.33
1.53
1.73
: 51.68 -
5.77
0.58
0.58
">--;-
2.52
0.00
14.57
9.17
2.08
i:'ฃ?52$t
2.89
10:00
1.15
0.58
13.23
6.56
1.73
0.541
0.148
0.295
0.197
0.148
0.541
0.049
0.788
0.148
0.148
- ss - -;,-:;r-
7.908
0.492
"t; \ >ซซ*. v -.--.
0.246
0.345
0.246
0.492
0.345
0.788
0.148
0.148
: 7.533
0.492
0.049
0.049
": \ x\: '
0.246
0.000
1.627
0.886
0.197
V-^f
0.246
0.984
0.098
0.049
1.439
0.640
0.148
124.00
116.00
117.67
119.00
120.33
107.00
113.67
126.67
117.00
109.33
,-."-."", ----'"^^^^ ^ws...^.^^.,,.
> - ;si83>67;JJ>
116.67
5^v v ^ *\<"w fซs^ * ^\"^^ v '."-^
o % ",' ;^ ^^Fx^\--
102.67
109.67
116.67
114.00
120.67
121.33
127.67
124.00
- ; -i58:al^Av; '
123.33
117.33
124.67
';; "-'r >,' ;-'':^A-
123.33
130.00
129.67
121.00
128.67
^^ Vs ^ Nv-T'"' " % "" ^" ^ wi' --N ,^ " f " > * viC"
109.67
\- ;,> 150.66 !T^>
120.67
133.67
106.00
137.00
, "- -< ;>- '
117.00
TAG SYMBOLS
Determined
to be an
outlier
0.56
-0.59
-0.35
-0.16
0.03
-1.89
-0.93
0.95
-0.45
_-lj56
-^ ป-,v,^ป^..-v,,^5
\iltfl4''
-0.50
ซ^ ซซ,SASV(^V.. ^ ^ s v^.
^"""V;
-2.52
-1.51
-0.50
-0.88
0.08
0.18
1.09
0.56
:5i52sV'-""'
0.46
-0.40
0.66
iriV-.V-x-^'f*
0^46
1.43
1.38
0.13
1.23
5:l^^>^;
-1.51
'4.3' i'^ :
0.08
1.96
-2.04
2-i*,,> .
,~\i 's > ' -
-0.45
\, "!v; ,
IT s Above
11 3 Below
0.58
-0.58
-0.34
-0.14
0.05
-1.88
-0.91
0.96
-0.43
-1.54
.njv^'Vv'i* r
\9il9ZVx*
-0.48
*-,> Y^ i VN w " " -1
^ T - ssO *\ >
-2.50
-1.49
-0.48
-0.87
0.10
0.19
1.11
0.58
{"SJSvt-.'x '
0.48
-0.38
0.67
K /, ''s;*
0.48
1.44
1.40
0.14
1.25
;?' -Y ^ -'
-1.49
433 ;x
0.10
1.97
-2.02
2.45
- '"V" , -,- ;'
-0.43
'XV - s
control limit
control limit
-------
16/27
EMSL-LV Performance Evaluation:
Radionuclides in Milk, 24-Sep-1993
Iodine-131
Lab
RK
S
SM
ss
T
TA
TD
TI
ซ ' My\vv ' " f-
'ฃฃ& ",h -.Vi'i
TQ
^"TFS'-v^ -" "-
^ X , ^ "^-.s v
i-Wfi 5;
U
F*J^\:VT?
VG
W
WA
Y
Res. 1
97.0
117.0
114.0
127.0
121.0
129.0
141.0
109.0
V.' .. t*:'*.^..
~> ' **' V
121.0
\;,. ^
' ^ ^ * C
-; \ '.,-
116.0
-V 'J"'~1%~
134.0
105.0
122.0
118.0
Res. 2
99.0
123.0
117.0
148.0
122.0
128.0
142.0
107.0
"^^A , .^ *\**\N, S\>V'.,J*
C *'':' ''"- V-",'- ,
122.0
\ **-\' /v "/;-
,--? * ' ^ J :^
vl;/;-X~^,-
119.0
rx'SP!'r^"'vi,
137.0
114.0
134.0
126.0
Exper.
Res. 3 Sigma
96.0 1.53
123.0 3.46
117.0 1.73
126.0 12.42
129.0 4.36
134.0 3.21
136.0 3.21
120.0 7.00
J J-*, .- ...W. . _. ^ ^ f -
\^-f\ ;x ; ' - ' " -* '
115.0 3.79
/ ''^ *!"',""'
; % ' - ' ,.. ....,,".- .-.-; .-\- '
'"\~: Y, =
112.0 3.51
v^-X ,"";'_; ; ,"? ' -
135.0 1.53
112.0 4.73
108.0 13.01
121.0 4.04
Rnganal
(R + SR)
0.148
0.295
0.148
1.158
0.394
0.295
0.295
0.640
0.345
/ ^ .- '
0.345
0.148
0.443
1.533
0.394
Normalized deviation
Average (grand-avg) (known)
97.33
121.00
116.00
133.67
124.00
130.33
139.67
112.00
f ff -.v.-.-.j ^ , *,;,;,ฃ,**,
-.".. '" "" "* ' * :
119.33
.^-.. .... " ."..V
'' . .' ;'
115.67
,! -' -V- ;V ''
135.33
110.33
121.33
121.67
-3.29
0.13
-0.59
1.96
0.56
1.47
2.82
-1.17
*A %-f-y-"*" w/x\v. . y
">, ? ' -;
-0.11
, /"' - :- "- "V
S /. .v.v .VS "* ..:: f.' --C
/ ^ ซ
-0.64
?", ""' ' /"- \ ,*'';
2.20
-1.41
0.18
0.22
-3.27
0.14
-0.58
1.97
0.58
1.49
2.84
-1.15
' * ' vf -
-0.10
' ; \.%* - .>
\%
-0.63
"-/:" ;'<;'
2.21
-1.40
0.19
0.24
Tag
1
*ป
- ' %
, V'
'- ป--,
.- ' ^"
* ,,
'vrVv* '
Data sorted by Laboratory Average
Average
12.00
60.67
97.33
99.67
102.67
103.00
106.00
107.00
108.00
109.33
109.67
109.67
110.33
112.00
113.00
113.33
113.67
114.00
114.33
115.67
115.67
s No
Tag
X
X
U
data submitted
0 = Insufficient data
Lab
FL
FE
RK
BH
LR
HU
QL
JS
AH
L
Q
M
W
TI
AE
EH
K
ML
AN
U
CO
Average
116.00
116.00
116.00
116.00
116.67
116.67
116.67
116.67
116.67
117.00
117.00
117.00
117.33
117.33
117.67
118.00
118.00
118.33
118.33
119.00
119.00
Tag
Lab
SM
1C
EB
AP
MA
LF
AU
AL
AA
R
KX
BL
0
D
IU
EA
DM
E
DE
J
BO
Average
119.33
119.67
120.33
120.67
120.67
121.00
121.00
121.33
121.33
121.67
122.00
122.33
122.33
122.67
122.67
123.33
123.33
124.00
124.00
124.00
Tag
124.00
TAG SYMBOLS
x s Determined to be an outlier
ft = Above
U = Below
control
control
Lab
TQ
EL
JR
QJ
MP
S
PT
WA
MQ
Y
C
CP
AF
BC
AK
PI
NJ
T
N
I
BA
limit
limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 17/27
Iodine-131
Average
Tag
Data sorted by Laboratory Average
Lab Average Tag Lab | Average
Tag
Lab
124.67
125.33
125.33
125.33
125.67
126.67
126.67
127.00
127.67
PB
DY
CA
BM
DT
KL
CJ
DD
MV
128.00
128.67
129.67
130.00
130.00
130.33
131.33
133.67
133.67
A
PV
PP
PM
AJ
TA
CQ
SS
QK
134.00
135.33
136.67
137.00
139.67
150.00
151.67
158.33
183.67
x
x
X
X
EX
VG
AY
QX
TD
QB
PW
NH
LE
% responding labs
Frequency distribution
10-
-6
-4-2 0 +2 +4
Normalized deviation of the mean from the known value
% responding labs
Frequency distribution
10
-6
-4-20 +2 +4
Normalized deviation of the mean from the grand average
s No data submitted
0 3 Insufficient data
TAG SYMBOLS
x = Determined to be an outlier
ft s Above control limit
& 3 Below control limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 18/27
Cesium-137 Statistical Summary 111 Participants
The known value of this nuclide is 49.0 pCi/1 with an expected precision of 5.0; the control limits
are 40.3 to 57.7; the warning regions are 40.3 to 43.2 and 54.8 to 57.7
17(15.3 %) Failed to respond -.,
4(3.6 %) Out of control
but not an outlier
Statistic
; 88(79.3 %) Within all limits
Respondents
" 2(1.8 %) 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
50.02
3.00
9.00
6.00
2.08
0.34
49.67
1.36
0.22
Grand Avg 50.02
3.00
9.00
6.00
2.08
0.34
49.67
1.36
0.22
4(4.3 %) More than 3 norm. S.D. ป,^
2(2.1 %) Between 2 and 3 norm. S.D. '
68(72.3 %) Within 1 norm. S.D.
of known value
2O(21.3 %) Between 1 and 2 norm. S.D.
-------
19/27 EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993
Cesium-137
Lab Res. 1
A
AA
AE
AF
AH
AI
AJ
AK
AL
AN
AP
AU
AY
-AZ":
BA
BC
BG
BH
BL
BM
BO
BW
C
CA
CJ
CO
CP
CQ
D
DD
DE
DM
DT
DY
E
EA
EB
EH
EL
EX
FE
FL
HU
=
0 a
52.0
49.0
49.0
51.0
48.0
47.0
57.0
50.0
50.0
47.0
47.0
48.0
49.0
;- -
51.0
50.0
i
55.0
49.0
50.0
49.0
52.0
51.0
52.0
50.0
53.0
47.0
51.0
47.0
54.0
53.0
47.0
48.0
53.0
50.0
50.0
50.0
46.0
49.0
52.0
49.0
51.0
40.0
Res. 2
49.0
49.0
49.0
48.0
46.0
47.0
59.0
50.0
52.0
47.0
50.0
50.0
53.0
,-,'- '',,.. 'i"
52.0
_v, 51,0~
S>1 S v S .- ^
52.0
49.0
52.0
48.0
50.0
50.0
49.0
50.0
61.0
48.0
54.0
50.0
51.0
53.0
48.0
53.0
54.0
53.0
49.0
51.0
48.0
49.0
43.0
48.0
50.0
41.0
Res. 3
52.0
49.0
49.0
45.0
44.0
46.0
60.0
50.0
52.0
49.0
52.0
49.0
48.0
53.0
52.0
, .- ' . . .- " . .v .
52.0
44.0
50.0
53.0
47.0
49.0
46.0
52.0
50.0
48.0
50.0
52.0
55.0
53.0
49.0
45.0
52.0
45.0
50.0
50.0
48.0
48.0
57.0
48.0
51.0
43.0
No data submitted
Insufficient
data
x =
Exper. Rng anal
Sigma (R + SR) Average
1.73
0.00
0.00
3.00
2.00
0.58
1.53
0.00
1.15
1.15
2.52
1.00
2.65
1.00
2.52
1.73
2.89
1.15
2.65
2.52
1.00
3.00
1.15
5.69
0.58
2.08
2.52
2.08
0.00
1.00
4.04
1.00
4.04
0.58
0.58
1.15
0.58
7.09
0.58
0.58
1.53
0.354
0.000
0.000
0.709
0.473
0.118
0.354
0.000
0.236
0.236
0.591
0.236
0.591
''
0.236
0.591
0.354
0.591
0.236
0.591
0.591
0.236
0.709
0.236
1.570
0.118
0.473
0.591
0.473
0.000
0.236
0.945
0.236
0.945
0.118
0.118
0.236
0.118
2.245
0.118
0.118
0.354
51.00
49.00
49.00
48.00
46.00
46.67
58.67
50.00
51.33
47.67
49.67
49.00
50.00
',""" r ~ -^
52.00
52.33
'"
53.00
47.33
50.67
50.00
49.67
50.00
49.00
50.67
54.67
47.67
51.67
49.67
53.33
53.00
48.00
48.67
53.00
49.33
49.67
50.33
47.33
48.67
50.67
48.33
50.67
41.33
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
0.34
-0.35
-0.35
-0.70
-1.39
-1.16
3.00
-0.01
0.46
-0.81
-0.12
-0.35
-0.01
0.69
0.80
' ' x , , :/
1.03
-0.93
0.22
-0.01
-0.12
-0.01
-0.35
0.22
1.61
-0.81
0.57
-0.12
1.15
1.03
-0.70
-0.47
1.03
-0.24
-0.12
0.11
-0.93
-0.47
0.22
-0.58
0.22
-3.01
ft = Above
& s Below
0.69
0.00
0.00
-0.35
-1.04
-0.81
3.35 IT
0.35
0.81
-0.46
0.23
0.00
0.35
>--' ' '
1.04
1.15
' - - '*' V * ' '
1.39
-0.58
0.58
0.35
0.23
0.35
0.00
0.58
1.96
-0.46
0.92
0.23
1.50
1.39
-0.35
-0.12
1.39
0.12
.0.23
0.46
-0.58
-0.12
0.58
-0.23
0.58
-2.66
control limit
control limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 20/27
Cesium-137
Lab Res. 1
v '. Nf '>
4HJLt
I
1C
IU
J
JR
JS
K
KL
KX
L
^St?\
LE
LF
\s'ijMf
LR
M
MA
ML
MP
MQ
i^ij.w.\ y.,"-
^MS,v
MV
N
NH
NJ
O
PB
PC
PI
PM
PP
PT
PV
PW
Aซ\ซ 'A.V^jV^V'
Q
QB
QJ
QK
QL
QX
R
^RA:\
V'"' ^ '' Y"4 *" "" ""^^ >s !s-\
^v*^i%งK^ji
47.0
46.0
52.0
48.0
50.0
63.0
51.0
51.0
48.0
49.0
^;~-i^?~"^r*'i^A|"
35.0
49.0
? ;\-i\A\-> x$<^V,,;sป
50.0
48.0
49.0
49.0
48.0
49.0
v-^V "ฃ VoX" * ^sV\\>"^V
s4*'~\'vvt^'^f ,
51.0
51.0
53.0
52.0
50.0
54.0
42.0
48.0
56.0
55.0
49.0
57.0
,_w_46Jp
Res. 2
^^%S V <,.. ^0 V
^^^ViV^f^v
53.6
49.0
52.0
50.0
52.0
48.0
51.0
50.0
47.0
46.0
v^-c ^v-y " ^ |
46.0
50.0
* *\^?\^- -*-\
48.0
48.0
48.0
51.0
49.0
47.0
OX^C1? 4 ^Vt\^V ^ " .,
fM\ ">^': >' '
48.0
52.0
53.0
55.0
50.0
51.0
44.0
50.0
55.0
53.0
50.0
51.0
48.0
Res. 3
>, i% f " ;
oฐ\^.{^: x%^ - ^
49.0
51.0
50.0
48.0
51.0
54.0
52.0
56.0
50.0
47.0
;^, . j, s. .; %
52.0
49.0
;"? "J>i ,;;"- : ,:-
52.0
49.0
52.0
43.0
53.0
56.0
*!;\* ''"'' \\. * *
'-\ ' 'J V>ฐ * ,-
52.0
51.0
50.0
51.0
49.0
52.0
47.0
52.0
52.0
56.0
51.0
54.0
45.0
Exper.
Sigma
v - v ''-
s sf , ^
3.06
2.52
1.15
1.15
1.00
7.55
0.58
3.21
1.53
1.53
8.62
0.58
SV * < --C ^
2.00
0.58
2.08
4.16
2.65
4.73
. l" ^ "
^ -,./ *
2.08
0.58
1.73
2.08
0.58
1.53
2.52
2.00
2.08
1.53
1.00
3.00
1.53
Rng anal
(R + SR) Average
, . "*\
0.709
0.591
0.236
0.236
0.236
2.470
0.118
0.709
0.354
0.354
,, . ....
2.921
0.118
. >''.',''-
0.473
0.118
0.473
0.945
0.591
1.120
s% ^^
*~ ' ,
0.473
0.118
0.354
0.473
0.118
0.354
0.591
0.473
0.473
0.354
0.236
0.709
0.354
* * ' * *-. \
';* .' -Vi* 'r!^"?""
49.67
48.67
51.33
48.67
51.00
55.00
51.33
52.33
48.33
47.33
,N - , ซ ^
44.33
49.33
i-- '"-' '*'".', ,
50.00
48.33
49.67
47.67
50.00
50.67
^ "" '" ""^ t \
,;- - -\".X,,-'
50.33
51.33
52.00
52.67
49.67
52.33
44.33
50.00
54.33
54.67
50.00
54.00
46.33
i^^v^^r^^rTyJ1; ^\r * \s~ ~,-y!V-; .. ... . .
46.6
50.0
53.0
57.0
48.0
58.0
49.0
s^-:,^^"^
50.6
50.0
48.0
57.0
47.0
60.0
49.0
^V.fel
51.0
50.0
53.0
60.0
50.0
60.0
51.0
|.;' '
s No data submitted
0 =
Insufficient
data
X =
2.65
0.00
2.89
1.73
1.53
1.15
1.15
- , _ ,ป'
0.591
0.000
0.591
0.354
0.354
0.236
0.236
' \
49.00
50.00
51.33
58.00
48.33
59.33
49.67
,- .. \/;4 -\
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
*\ ^ s. ^^5 % ~<. ^\ ^ ^> .:. *
!ซ ซ !- V;> -^ ",. V: ^yv^i
-0.12
-0.47
0.46
-0.47
0.34
1.73
0.46
0.80
-0.58
-0.93
-_ -; - ;j ~ -x ,- ,- ซ,> ป ซ ซ- vซ^ --
-1.97
-0.24
v'lrt^ ,V ' N' .,\X'V /!
-0.01
-0.58
-0.12
-0.81
-0.01
0.22
\ -i ^ i 5 * s ^\ j^^ r% ^ % %
^,A c >^ * <. s-"- -
0.11
0.46
0.69
0.92
-0.12
0.80
-1.97
-0.01
1.49
1.61
-0.01
1.38
-1.28
, s ^ i -. % v
-0.35
-0.01
0.46
2.77
-0.58
3.23
-0.12
?f!x'. --\;-^:-;'vr.;--.
ft s Above
Ji = Below
Vs % * , s
SV^XX \^V* -^
0.23
-0.12
0.81
-0.12
0.69
2.08
0.81
1,15
-0.23
-0.58
, w-v: - s - ^ ;;
-1.62
0.12
1 * t;v-\ ,." S"t>t.;
0.35
-0.23
0.23
-0.46
0.35
0.58
" \v ^ x\ * ^ **
;.V1-,- - >' >
0.46
0.81
1.04
1.27
0.23
1.15
-1.62
0.35
1.85
1.96
0.35
1.73
-0.92
, ,x * --
0.00
0.35
0.81
3.12 ft
-0.23
3.58 ft
0.23
\\\-^, ,
control limit
control limit
-------
21/27
EMSL-LV Performance
Evaluation:
Radionuclides in Milk, 24-Sep-1993
Cesium-137
Lab
RC \.
RK
S
SM
SS
T
TA
TD
TE
TI
'< < , \
>VJ!'|*:'..V;X
TQ
z$8 ;>*-;
S^l^;;
^iHi'W '-""<' -
u
. .. < - -V.JW. v
'*" XJB s "xv
VG
W
WA
Y
Average
41.33
43.67
44.33
44.33
45.67
46.00
46.00
46.33
46.67
46.67
47.33
47.33
47.33
47.67
47.67
47.67
47.67
47.67
48.00
48.00
48.33
Res. 1
47.0
50.0
50.0
48.0
49.0
40.0
61.0
50.0
49.0
.. ^A S V^V.
$' s " if '
47.0
. : >
AV^'V
"'' ' ' . vi.'
50.0
'.. " "^vwX-,*1
49.0
43.0
46.0
48.0
Res. 2
47.0
49.0
49.0
54.0
53.0
43.0
56.0
47.0
49.0
<. ^ <.
1 - -~,- ' -'#>
48.0
'-. * : \ ,. S '
>,\; ,j>V,^ ^
v"i'; ., t ,;-,' ,;,,,.
49.0
^ f. ~.^ J. .S-^-.'.S s.
V f-,f f" .--,. .
46.0
46.0
48.0
50.0
Tag
Res. 3
46.0
50.0
54.0
49.0
50.0
48.0
58.0
50.0
49.0
." ^ v ^ .""
. v v
48.0
:- s'i '' '
Exper.
Sigma
0.58
0.58
2.65
3.21
2.08
4.04
2.52
1.73
0.00
0.58
Rnganal
(R + SR)
0.118
0.118
0.591
0.709
0.473
0.945
0.591
0.354
0.000
0.118
Normalized deviation
Average (grand-avg) (known)
46.67
49.67
51.00
50.33
50.67
43.67
58.33
49.00
49.00
" v , : :f f " '
f ""* .,
47.67
-1.16
-0.12
0.34
0.11
0.22
-2.20
2.88
-0.35
-0.35
-. - <. \ * -"--, \
% "
-0.81
v ?
-0.81
0.23
0.69
0.46
0.58
-1.85
3.23
0.00
0.00
v. _f AS ^
-0.46
Tag
ป>:
ft
* - ~
' *\
/; ;..-,-. .^. :jy/ > -' .- -^^' -A ->'\v'>>>^''& -''.*'"
"' -' ""-' '" s
49.0
vv ^ % " f
48.0
48.0
44.0
49.0
Data
Lab
HU
TA
PC
LE
W
WA
AH
PW
RK
AI
L
EH
BL
VG
TQ
ML
CP
AN
DM
AF
QL
0.58
1.53
2.52
2.00
1.00
0.118
0.354
0.591
0.473
0.236
, ,, , ^ ,
49.33
' ' " "" ^ *s "
47.67
45.67
46.00
49.00
-x* - -
-0.24
"' v -" '*,-"
" " ! " '* \ *
-0.81
-1.51
-1.39
-0.35
V' '
0.12
'..*" '.'.:.:::
- '*
-0.46
-1.15
-1.04
0.00
> ป
- f - - '
..''+.'
sorted by Laboratory Average
Average
s No data submitted
0 = Insufficient data
X
48.33
48.33
48.33
48.67
48.67
48.67
48.67
49.00
49.00
49.00
49.00
49.00
49.00
49.00
49.00
49.33
49.33
49.33
49.67
49.67
49.67
Tag
Lab
M
KX
FE
J
1C
EL
DT
Y
TI
TE
Q
CA
AU
AE
AA
U
LF
E
S
R
O
Average
49.67
49.67
49.67
49.67
49.67
49.67
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.00
50.33
50.33
50.33
50.67
50.67
50.67
TAG SYMBOLS
s Determined to be an outlier
Tag
ft = Above
11 = Below
control
control
Lab
MA
I
EA
D
BW
AP
QB
PT
PI
MP
LR
C
BO
AY
AK
SS
MV
EB
T
MQ
FL
limit
limit
-------
f -^
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 22/27
Cesium-137
Data sorted by Laboratory Average
Average Tag Lab Average Tag Lab Average
50.67 EX 51.33 AL 53.00
50.67 CJ 51.67 CQ 53.33
50.67 BM 52.00 NH 54.00
51.00 SM 52.00 BA 54.33
51.00 JR 52.33 PB 54.67
51.00 A 52.33 KL 54.67
51.33 QJ 52.33 BC 55.00
51.33 N 52.67 NJ 58.00
51.33 K 53.00 DY 58.33
51.33 IU 53.00 DE 58.67
59.33
Tag Lab
BH
DD
PV
PM
PP
CO
JS
It QK
ft TD
IT AJ
IT QX
% responding labs Frequency distribution
10
mil.
. .. -.llillliiii-.i
-6 -4 -2 0 +2
Normalized deviation of the mean from the known value
% responding labs Frequency distribution
I
10 Illli
_ _ -illlllliii_ป- __
-6 -4 -2 0 +2
Normalized deviation of the mean from the grand average
s No data submitted TAG SYMBOLS ft 5
0 s Insufficient data x = Determined to be an outlier Ji s
+4 ' +6
+4 ' +6
5 Above control limit
= Below control limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 23 / 27
Total Potassium Statistical Summary 111 Participants
The known value of this nuclide is 1679.0 mg/1 with an expected precision of 84.0; the control limits
are 1533.3 to 1824.7; the warning regions are 1533.3 to 1581.8 and 1776.2 to 1824.7
29(26.1 %) Failed to respond %%
5(4.5 %) Outliers '
11 (9.9 %) Out of control
but not an outlier
Statistic
, 57(51.4 %) Within all limits
Respondents
-- 9(8.1 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
1866.54
1730.98
2996277.75
92.74
11.17
0.11
1689.67
0.64
0.01
Grand Avg 1674.07
95.22
9067.33
5.69
-0.29
-0.05
1689.67
0.64
0.11
16(19.5 %) More than 3 norm. S.D.
9(11.0 %) Between 2 and 3 norm. S.D.
32(39.0 %) Within 1 norm. S.D.
of known value
25(30.5 %) Between 1 and 2 norm. S.D.
-------
24 / 27 EMSL-LV Performance Evaluation:
Radionuclides in Milk, 24-Sep-1993
Total Potassium
Lab
A;<
AA
AE
AF
AH
AI
AJ
AK
AL
AN
''AK.
AU
AY
^AZ-"'
BA
vBCF
fitfi '
.iJtfvN
BH
BL
BM
BO
' v%4toซw* ' '
- "BW-'
c
CA
CJ
CO
CQ
D
DD
DE
DM
DT
DY
E
EA
'KB--
EH
EL
FE
-,'IBTL^
%GI5'>
HU
Res. 1
20010
1861.0
1635.0
1571.0
1680.0
1790.0
1761.0
1790.0
1708.0
-V " ' - ,
1630.0
1457.0
~T"\~ 7 <->' :;"*>'
1648.0
Res. 2
1 ''^"'i 9 ct n -^
ff ii fJlHrJif
1805.0
r'' ' ' f".
1584.0
1631.0
1650.0
1850.0
1763.0
1790.0
1727.0
' J. "" *
1600.0
1627.0
" "" f * ,^ "" "i"1"' ''"'ซ.
1720.0
Res. 3
23340
1868.0
1643.0
1603.0
1670.0
1870.0
1790.0
1800.0
1724.0
1660.0
1637.0
VT> - --~ ,- -
1780.0
Exper.
Sigma
167.37
34.53
32.01
30.02
15.28
41.63
16.20
5.77
10.21
30.00
101.16
66.09
Rng anal
(R + SR)
3.555
0.443
0.415
0.422
0.211
0.563
0.204
0.070
0.134
0.422
1.506
-
0.928
Average
2157.67
1844.67
1620.67
1601.67
1666.67
1836.67
1771.33
1793.33
1719.67
1630.00
1573.67
1716.00
Normalized
(grand-avg)
9,97 :
3.52
-1.10
-1.49
-0.15
3.35
2.01
2.46
0.94
, >v -': -> "
-0.91
-2.07
>', '"'vV*1 ?"' *
0.86
deviation
(known) Tag
9.87 X
3.42 ft
,
-1.20
-1.59
-0.25
3.25 ft
1.90
2.36
0.84
' ,//"Y;/ - -
-i.oi
-2.17
-; '^v" **?",.'" ^ '
0.76
^;^\'V;r:?^5:;8'l/"U'^ , , ',: / ; >\;'".J.': '-\"C V-
>V 'f""^"" *" l \ j^f? -" ""' y-
1580.0
1721.0
1760.0
1790.0
^ j-* j -.-*>. v * ^ -
~-"l] ";-. V
1708.0
1660.0
1640.0
1798.0 ^
1354.0
1761.0
1730.0
1520.0
1630.0
1580.0
1771.0
1774.0
1714.0
<'; , "- -- * '"' " "-' -
1650.0
1725.0
1740.0
:':. l':./;- ,/',.-." '
1435.0
'"" ^ 'T "l-'^ J"^^" v-."
1600.0
1681.0
1710.0
1680.0
, % X> 1K-. '; V-t<-> **f
'T^X' "-* -v-.V" v-v
1673.0
1590.0
1610.0
1724.0
1413.0
1569.0
1730.0
1520.0
1634.0
1640.0
1736.0
1754.0
1725.0
. : , , "-"*ซ"
1680.0
1681.0
1680.0
- ,, - - . ><. , '-
-X,'t ,' ' :--;fi
1461.0
- "V " "" ' w
1600.0
1674.0
1730.0
1680.0
. __ - * s >. "
' 'ป'
1693.0
1600.0
1610.0
1741.0
1453.0
1026.0
1650.0
1525.0
1644.0
1620.0
1782.0
1709.0
1669.0
'
1670.0
1670.0
1700.0
',
1487.0
= No data submitted
0 a
Insufficient
data
x =
11.55
25.36
25.17
63.51
17.56
37.86
17.32
38.76
49.80
381.21
46.19
2.89
7.21
30.55
24.02
33.29
29.67
15.28
29.10
30.55
i .. f
26.00
0.141
0.330
0.352
0.773
0.246
0.492
0.211
0.520
0.696
8.940
0.563
0.035
0.098
0.422
0.323
0.457
0.394
0.211
0.387
0.422
0.366
1593.33
1692.00
1733.33
1716.67
: V -.
1691.33
1616.67
1620.00
1754.33
1406.67
1452.00
1703.33
1521.67
1636.00
1613.33
1763.00
1745.67
1702.67
1666.67
1692.00
1706.67
1461.00
TAG SYMBOLS
Determined to be an outlier
*,C ^"^ *\ '
-1.66
0.37
1.22
0.88
' *, % ""
0.36
-1.18
-1.11
1.66
-5.51
-4.58
0.60
-3.14
-0.78
-1.25
1.83
1.48
0.59
-0.15
0.37
0.67
1 '
-4.39
%fs ' " \^' v-^< \ v
-1.77
0.27
1.12
0.78
' '; "'
ป
0.25
-1.29
-1.22
1.55
-5.62 Ji
-4.68 b
0.50
-3.24 II
-0^89
-1.35
1.73
1.37
0.49
' ' ' - -
-0.25
0.27
0.57
- ' ' *
' ' '*' '
-4.50 ll
ft = Above control limit
11 = Below control limit
-------
EMSL-LV Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 25/27
Total Potassium
Lab
Res. 1
Res. 2
HSKH'^^V';!1^^::, i'
I
1C
IU
J
JR
JS
K
KL
KX
L
"l^.
i%J2^
-s M^*-!.,*-.
LF
1748.0
1684.0
1660.0
1645.0
1590.0
1899.0
1626.0
1758.0
1660.0
1564.0
""T!TTrv>;"7
sv^l^^'l
"v,\ S %* \ ^""sV - %
1718.0
1700.0
1640.0
1659.0
1600.0
1839.0
1629.0
1805.0
1640.0
1556.0
Sk WWvf ^V* ^ -
^t^rH ;
. ; * "" > ^
1700.0 1600.0
Res. 3
:^x ?l\Vcv:~
1818.0
1701.0
1650.0
1668.0
1620.0
1942.0
1676.0
1781.0
1620.0
1570.0
-<.x ~ \
1700.0
Exper.
Sigma
^ -.,"","
51.32
9.54
10.00
11.59
15.28
51.73
28.04
23.50
20.00
7.02
,, ,
"ฐ /'-"
57.74
Rng anal
(R + SR)
'A ,'"- ,-"<*,
0.703
0.120
0.141
0.162
0.211
0.724
0.352
0.330
0.281
0.098
V
0.703
Normalized deviation
Average
,- ;^ .^"X^i^^
1761.33
1695.00
1650.00
1657.33
1603.33
1893.33
1643.67
1781.33
1640.00
1563.33
\ ', ;-'-
, , , ^ ^
1666.67
(grand-avg) (known) Tag
;^^lT>f:'fvป
1.80
0.43
-0.50
-0.35
-1.46
4.52
-0.63
2.21
-0.70
-2.28
' ', r -;^ 'ฐ ~
-0.15
*1^^>,W
1.70
0.33
-0.60
-0.45
-1.56
4.42 It
-0.73
2.11
-0.80
-2.39
:;; ''<",' .- -*'i\, ^
is -V>'' ~V\ป~-
-0.25
OLMi!'!'--N ฐ1;AV ^-' .- V"V ' . ' - '' ' ' .'' ' -v' """* ----:--,---;-;%-.-- v% ^;r V;ปrN;
LR
M
MA
ML
?|*P|
MQ
;AMSi-
MV
N
NH
'ฃ*fvjfeK
*^ *0
o
PB
IP?
w'JL'B'V; ^
^Js^il^
PM
pp
PT
PV
TPW^
^ugZ
Q
QB
QJ
QK
QL
,JX,
1806.0
1590.0
1734.0
1460.0
^?il4^&i?
1763.0
^jXv'^HS T'%!ft
1706.0
1732.0
1824.0
- lS -JS^IJ^Is"^;"
&'* V'^'H -Si -\^-.Sl-
1678.0
1763.0
?iY,;0jJJ8iCMr
^^ ^ o''*''!'"^ . ' ^S1
/\^^^^%r\ss"ix: -^
leoao
1486.0
1530.0
1720.0
^ '2329.6%'
x*.^^s \s'^x
1615.0
1710.0
1900.0
1688.0
1550.0
1711.0
1510.0
1722.0
1600.0
?|^14ll|6:
1590.0
'*^X'v ^'!
1714.0
1776.0
1850.0
?^\>"0 '-. "'^- ^
X* Vv-' -.''.':''''/ '"'"'* *
1678.0
1728.0
?^i(N52td'
'V\^v ^**<*^ ^ \ ss
*>X*V * ^ *
" 1600.0
1465.0
1597.0
1670.0
\ OOGJl f\
> ^*&&\F i\Jt
^ > ? s
1590.0
1730.0
1370.0
1720.0
1612.0
1648.0 1688.0
1912.0
1610.0
1746.0
1470.0
v^rioeslo^'"
1764.0
';. ' v N;f; ' '
1706.0
1704.0
1821.0
ฐ sv\v':'- /\? -.-^ vr^*
1655.0
1746.0
vV'il^6')0;.~
fe^ "" % ^ ^ ^
^ \ * ^" ^
<\ N S \
* % '%*"'* S
0.703
0.288
0.471
0.352
0.429
0.338
0.492
6.194
0.225
1.506
0.598
1809.67
1570.00
1734.00
1510.00
;13246T?
1705.67
^ "* I '**
1708.67
1737.33
1831.67
-.^"^ ,C"S*^;'
% s % \ ,* Ov. ซ
1670.33
1745.67
1056.67
" ซ s " Xv";
s
1633.33
1485.67
1574.67
1690.00
2323.33
1614.33
1740.00
1623.33
1706.00
1630.67
1689.67
y|^~-*%::';;kvx-v ^<-- - -' ' - ' ,
R
'^HA^-
^**^FTซ
1613.0
ซ,x''' cf^-"" v^^" I
xv^^ SA*^ ^i-^V ^ >) .. 't.*.' \*
1599.0
%ฃ\^\7^^\^
^*.'^' !t>.v-.. v . ...*
1562.0
7\ ^ '-'-i ;" ^
X ?, o\ . , \" . ,
s No data submitted
0 3
Insufficient
data
x =
26.35
' *
0.359
v
v
1591.33
>! \
TAG SYMBOLS
Determined
to be an outlier
2.80
-2.15
1.24
-3.38^
Zy^lgjij^r
0.65
^ " ""--^ ^ l>-- % \s->
0.71
1.30
3.25
J\ ';. *"1' \* I^?!- '5 xY,
' :~-';xx ,,V ! !- '^' \'% '-*
-0.08
1.48
\- ,;ii2^3t-f ,\ฃ
^ ' ^ (*"> S ^'^.S ^ "" SV N^ ^
0 *<**** \^ %
-0.84
-3.88
-2.05
0.33
13.39
-1.23
1.36
-1.05
0.66
-0.89
0.32
- s,.
-1.71
> * v" S ,<^ * <ฃ ,
v ^ * <
It 3 Above
& = Below
2.69
-2.25
1.13
-3.48 &
vTTsi?'^-^0
0.55
v^ - " 1,*~'1-'
0.61
1.20
3.15 ft
"> s/0^~!"; >r js . ,xs;-x
1 - ,\ v--'! -* ' -*,-"-
-0.18
1.37
i O Q O s V \s \\
* J**iปOO'X';;'''; s /> ^ v
% ^X * ^ * s "" > S ^ v""^ "" ^v
^ s-' -^ , '* ""
-0.94
-3.99 U
-2.15
0.23
13.29 x
i
-1.33
1.26
-1.15
0.56
-1.00
0.22
^
-1.81
ฃ Sv* >- ~ >ป^
control limit
control limit
-------
26 / 27 EMSL-LV Performance Evaluation:
Radionuclides in Milk, 24-Sep-1993
1
Total Potassium
Lab Res. 1
1 ' nmz* > *t **yocii ~"f\^
"^ .p^i^fc, * "-i. f jujy JL*\/ j
S 1660.0
SM - -'/-"
SS 1762.0
T 1605.0
TA 1580.0
TD 1630.0
TE 1690.0
TI 1807.0
''"fit**' "'"x ' ''"" ? <"v.'V
-*Tl^-: ;'"'* v 'X ; ,v
TQ 1646.0
**RS'^^-* '""' '*! "*'
; , VV"!'' *'' \ ' 'ป-
'flfwyi.
. j*nj*^My- ^ ^ -- ^ -^ ^
U 1795.0
VG 1880.0
W 1659.0
WA 1733.0
Y 1630.0
Res. 2
16728.0 :
1630.0
, ';"- "
1990.0
1576.0
1630.0
1610.0
1698.0
1862.0
*"' T;" ":~,x"', *"
V';*, V ""1- #",
1753.0
''' -"> "'">ป'
4 \t - ,^/4 - "<
<. *',* , ' s
1698.0
1890.0
1766.0
1723.0
1670.0
Exper.
Res. 3 Sigma
s 17864:0 663^00
1630.0 17.32
1637.0 178.99
1644.0 34.12
1580.0 28.87
1620.0 10.00
1688.0 5.29
1771.0 45.83
,'-~\-;' ,'\ ' * -\ - . -
,, ,-.?'' ~~-^- ,- ^ ",
1491.0 131.73
f " ~" - ;
<. ''" '-.
A ,
1576.0 109.74
1880.0 5.77
1695.0 54.45
1705.0 14.19
1760.0 66.58
Rnganal
(R + SR)
14.177
0.211
,
3.823
0.478
0.352
0.141
0.070
0.640
2.604
2.028
0.070
0.752
0.197
0.914
Normalized deviation
Average (grand-avg) (known)
Tag
1729100 I 32102 321.91 x'
1640.00
.... ., ,,. .,.-, .,..
1796.33
1608.33
1596.67
1620.00
1692.00
1813.33
- ; _ ,' "
1630.00
1689.67
1883.33
1706.67
1720.33
1686.67
-0.70
2.52
-1.36
-1.60
-1.11
0.37
2.87
'' v- '\ f "s
,- -* ... *
-0.91
0.32
4.31
0.67
0.95
0.26
-0.80
2.42
-1.46
-1.70
-1.22
0.27
2.77
' v< "''*!, 'V
-1.01
0.22
4.21
0.57
0.85
0.16
'" "
*
,s ; v "" '
, ' ^
ป-
ป ^
*
IT
Data sorted by Laboratory Average
Average
1056.67
1324.67
1406.67
1452.00
1461.00
1485.67
1510.00
1521.67
1563.33
1570.00
1573.67
1574.67
1591.33
1593.33
1596.67
1601.67
1603.33
1608.33
1613.33
1614.33
1616.67
Tag
X
X
JJ
&
U
$
U
H
= No data submitted
0 = Insufficient data
Lab
PC
MP
CQ
D
HU
PP
ML
DE
L
M
AY
PT
R
BH
TA
AH
JR
T
DT
Q
CA
Average
1620.00
1620.00
1620.67
1623.33
1630.00
1630.00
1630.67
1633.33
1636.00
1640.00
1640.00
1643.67
1650.00
1657.33
1666.67
1666.67
1666.67
1670.33
1686.67
1689.67
1689.67
Tag
Lab
TD
CJ
AF
QJ
TQ
AU
QL
PM
DM
S
KX
K
IU
J
LF
EH
AI
O
Y
U
QX
Average
1690.00
1691.33
1692.00
1692.00
1692.00
1695.00
1702.67
1703.33
1705.67
1706.00
1706.67
1706.67
1708.67
1716.00
1716.67
1719.67
1720.33
1733.33
1734.00
1737.33
1740.00
TAG SYMBOLS
x = Determined to be an outlier
Tag
ft = Above
& = Below
control
control
Lab
PV
C
TE
EL
BL
1C
EA
DD
MQ
QK
W
FE
MV
BA
BO
AN
WA
BM
MA
N
QB
limit
limit
-------
EMSL-LV
Total Potassium
Average Tag
1745.67
1745.67
1754.33
1761.33
1763.00
1771.33
% responding labs
in. __________
0 u . ...
Performance Evaluation: Radionuclides in Milk, 24-Sep-1993 27/27
Data sorted by Laboratory Average
Lab Average Tag Lab Average
PB 1781.33 KL 1836.67
E 1793.33 AL 1844.67
CO 1796.33 SS 1883.33
I 1809.67 LR 1893.33
DY 1813.33 TI 2157.67
AK 1831.67 IT NH 2323.33
17291.00
Frequency distribution
- _ _ -_. JL ___
. .. .1 .Illll-l 1.11 I...-- .-
ฐ -6 ' -4 -2 ' 6 +'2
% responding labs
IO' ----------
n I r
Normalized deviation of the mean from the known value
Frequency distribution
-6 -4 -2 0 +2
Normalized deviation of the mean from the grand average
3 No data submitted TAG SYMBOLS IT
0 s Insufficient data x = Determined to be an outlier JJ
Tag Lab
IT AJ
IT AA
IT VG
IT JS
x A
x PW
x RK
i
i i ^i
+4 +6
.. i
f i i^^^
+4 +6
5 Above control limit
s Below control limit
------- |