cvEPA
United States
Environmental Protection
Agency
Office of Research and
Development
Washington, DC 20460
EPA/600/R-94/121A
July 1994
Blind-A Performance
Evaluation Study
A Statistical Evaluation of
the April 19,1994 Data
0014red94.121a
-------
Blind-A
Performance Evaluation Study
April 19, 1994
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,
4
Enclosed are the results of the Nuclear Radiation Assessment Division (EMSL-LV)
Performance Evaluation Study for Blind-A; April 19, 1994.
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: Blind-A, 19-Apr-1994 1/34
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.
-------
2/34 EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
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: Blind-A, 19-Apr-1994
3/34
Gross Alpha Statistical Summary 216 Participants
The known value of this nuclide is 86.0 pCi/1 with an expected precision of 22.0; the control limits
are 47.8 to 124.2; the warning regions are 47.8 to 60.5 and 111.5 to 124.2
48(22.2 %) Failed to respond
146(67.6 %) Within all limits
8(3.7 %) Outliers '
2(O.9 %) Out of control
but not an outlier
.
Statistic
Respondents
12(5.6 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
88.55
24.95
622.58
28.18
2.96
0.10
84.00
-2.33
-0.08
Grand Avg 84.40
14.63
214.02
17.33
-1.87
-0.11
83.67
-2.71
-0.16
1O(6.O %) More than 3 norm. S.D
07(63.7 %) Within 1 norm. S.D.
of known value
12(7.1 %) Between 2 and 3 norm. S.D.
39(23.2 %) Between 1 and 2 norm. S.D.
-------
4/34
Gross Alpha
Lab Res. 1
A
AA
/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
CM
CO
CP
CQ
CS
CX
D
DB
DD
DE
DG
DM
102.0
88.0
-' 237^
83.0
81.0
78.0
81.0
103.0
82.0
78.0
107.0
88.0
95.0
85.0
90.0
120.0
70.0
88.0
85.0
120.0
90.0
96.0
,~: :, ;, - 1
77.0
70.0
83.0
78.0
75.0
79.0
' *'*,''
100.0
84.0
87.0
105.0
91.0
81.0
92.0
- 102.0
62.0
.,-... ,;..,,
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Res. 2
102.0
84.0
234.0 :
95.0
'' - - '- '"'-,-
81.0
74.0
80.0
106.0
71.0
70.0
101.0
93.0
95.0
87.0
97.0
110.0
79.0
85.0
88.0
113.0
88.0
101.0
- , -- V ,
76.0
" 75.0
90.0
77.0
81.0
78.0
- ' V ^ /''
1.02
0.07
-0.11
1.73
0.44
-0.37
0.47
1.54
-1.68
ft s Above
U = Below
1.36
0.05
11&00'; IX /'
0.39
^'V, I > , -
-0.45 '
-0.81
-0.52
1.63
-0.68
-1.13
1.60
0.29
0.87
0.05
0.60
1.63
-0.79
0.13
-"V" ' -;-ป :
-0.13
2.49
0.05
1.00
/v\ \ -- ^
-0.71
-1.00
0.13
-0.60
-0.63
-0.63
*{/.; ;<;<;'> -
0.89
'., ^ r ,,~
-0.05
-0.24
1.60
0.31
-0.50
0.34
1.42
-1.81
v: * ^'
control limit
control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
Gross Alpha
Lab Res. 1
DO
DS
DT
DZ
E
EB
EH
EL
EO
ER
EV
EX"
FE.'
FF
FJ
FL
FN
FU
FZ
GI
GQ
GT
GZ
HH
ffl
HK
HL
HP
HU
HX
I
IA
1C
ID
IE
iu
J
JE
JG
JH
JN
JQ
JS
JY
=
0 a
" ^ v V -, ^ " x ,-
81.0
88.0
86.0
86.0
95.0
, 5A-SL,
L > s \ ~.
90.0
83.0
75.0
i --j --ซ ^ ^ ., ซ.w.
^ ^ -4i^?M^o v
94.0
68.0
56.0
130.0
86.0
78.0
0 * V*'
69.0
77.0
70.0
75.0
94.0
104.0
67.0
' !; I67;o3:
- " f~\ ;..^
60.0
^ " y^. W** -* :..-,
88.0
106.0
96.0
87.0
78.0
102.0
78.0
77.0
61.0
83.0
Res. 2
^vซ X- -. % v ^
vi ซA * ; ^-i^ -.-
88.0
71.0
82.0
80.0
99.0
52.0
,S-\ V"^\ -...-!?-- ,"-
90.6
84.0
77.0
93.0
69.0
54.0
118.0
81.0
66.0_
"' ^ - "* ^ , v'"1- * x
72.0
82.0
73.0
80.0
95.0
104.0
62.0
^V^BtC^:
;s ,-'4-' <^|!'
...ljl-9.^
84.0
106.0
100.0
92.0
83.0
105.0
66.0
89.0
71.0
81.0
Res. 3
^^Ukv
88.0
83.0
83.0
83.0
98.0
50.0
"\ \--\ ! -
87.0
84.0
77.0
89.0
69.0
56.0
122.0
82.0
80.0
^;"\, ^-V:
76.0
83.0
68.0
78.0
100.0
104.0
62.0
r$1j6%ft;#
^^^..^^
_"j59.0(^
80.0
107.0
89.0
90.0
93.0
112.0
71.0
86.0
75.0
80.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
W:\ \" '
4.04
8.74
2.08
3.00
2.08
1.00
<~,V>, ; / ^ ^
1.73
0.58
1.15
2.65
0.58
1.15
6.11
2.65
rr7-^:;
\ I, 1 V - > ' -" <
3.51
3.21
2.52
2.52
3.21
0.00
2.89
ซv'w-SL66v-V'
\ V:" ^'""-:
ซ..,.J;ฎi ,
4.00
0.58
5.57
2.52
7.64
5.13
6.03
6.24
7.21
1.53
5/34 1
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
T-v1,^ - '
0.188
0.456
0.107
0.161
0.107
0.054
0.081
0.027
0.054
0.940
0.134
0.027
0.054
0.322
0.134
0.376
0.188
0.161
0.134
0.134
0.161
0.000
0.134
J 6.134
- - >;
_,p.l34
0.215
0.027
0.295
0.134
0.403
0.268
0.322
0.322
0.376
0.081
j:,\'v.^'-l-\r7%^
85.67
80.67
83.67
83.00
97.33
51.00
. \,!""--\^ \ ov'
89.00
83.67
76.33
92.00
68.67
55.33
123.33
83.00
^^,7.4-5^
' ,v- ^ ?--'<. -v ^4--
72.33
80.67
70.33
77.67
96.33
104.00
63.67
^v^^isejoo^}.^
r^-^V^-V^l^
JB1.00
84.00
106.33
95.00
89.67
84.67
106.33
71.67
84.00
69.00
81.33
TAG SYMBOLS
Determined
to be an
outlier
k^-':Vy oVXx
0.10
-0.29
-0.06
-0.11
1.02
-2.63
^ ' % v
0.36
-0.06
-0.63
0.60
-1.24
-2.29
3.07
-0.11
^ -0.77^ _ ^
,>\ฃ- '->'>' ''"
-0.95
-0.29
-1.11
-0.53
0.94
1.54
-1.63
il5i64l;^ :/
""X*"1 ? "* i % * ' '
^^; ,.
-0.03
1.73
0.83
0.41
0.02
1.73
'^'* *'''' '.'"'' '
-1.00
-0.03
-1.21
-0.24
ft s Above
& = Below
./CV*^', ;
-0.03
-0.42
-0.18
-0.24
0.89
-2.76
v >
0.24
-0.18
-0.76
4.78 X
0.47
-1.36
-2.41
2.94
-0.24
-0.89
\ " ^ <.- ^ ' ' ^ *
:"V;V ;' ."
-1.08
-0.42
-1.23
-0.66
0.81
1.42
-1.76
-6'4lr::,~ >
"?'-5\^\ป,
^-1.97
-0.16
1.60
0.71
0.29
-0.10
1.60
-1.13
-0.16
-1.34
-0.37
control limit
control limit
-------
6/34
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
> -...i i i- ' '
Gross Alpha
Lab
K
KE
KM
KT
KX.
L
LF
LG
LL
LM
LR
LT
M
MA
MN
MO
MP
MQ
MS
MV
MY
N
*NA
'NO'
NH
NJ
NK
NO
NT
O
OF
OS
OX
OY
P
PA
PB
PC
PG
PI
PM
PP
PQ
PR
=
'0 &
Res. 1
91.0
82.0
^ - f
100.0
77.0
83.0
74.0
101.0
81.0
100.0
79.0
75.0
' ':\ '- '" "" I
94.0
78.0
97.0
143*0
.- \ ^ >:
140*0
82.0
63.0
65.0
84.0
91.0
227,6
74.0
76.0
94.0
78.0
62.0
85.0
140.0
100.0
100.0
72.0
74.0
Res. 2
98.0
83.0
110.0
81.0
84.0
81.0
97.0
80.0
%'1%'J\
70.0
82.0
80.0
-;> "*"'":j^"
92.0
74.0
93.0
140.0
; 141,0 ;
80.0
65.0
68.0
88.0
91.0
243.0
75.0
82.0
97.0
78.0
70.0
81.0
143.0
92.0
104.0
73.0
74.0
Res. 3
93.0
75.0
118.0
82.0
84.0
80.0
91.0
86.0
" ,-*-: V266.6
74.0
72.0
104.0
75.0
66.0
79.0
152.0
97.0
114.0
70.0
76.0
No data submitted
Insufficient
data
X s
Exper.
Sigma
3.61
4.36
V
9.02
2.65
0.58
3.79
5.03
3.21
*Yr':-'-""' '
18.25
2.08
2.52
< *ซ* * ' >
<
* '\ ";- '"
1.15
- -*,.
2-08
3.06
- - '^2.62 ,'-
; ^ " *"
^^\ ' -
3.06
4.16
3.00
2.00
1.15
,;--; 14.53 -
0.58
5.03
5.13
1.73
4.00
3.06
6.24
4.04
7.21
1.53
1.15
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.188
0.215
"
0.483
0.134
0.027
0.188
0.268
0.161
0.886
0.107
0.134
- -','-
1 v
0.054
, ' ,
0.107
0.161
0.134
0.054
0.161
0.215
0.161
0.107
0.054
0.779
0.027
0.268
0.268
0.081
0.215
0.161
0.322
0.215
0.376
0.081
0.054
94.00
80.00
109.33
80.00
83.67
78.33
96.33
82.33
--, \ - ' ' s ,\ - ' ~"\"
79.00
79.67
77.67
" *'
' ' /,' -'-/"'' ;i-
93.33
< - ,
75.67
96.33
142,67
'*'.",'<' \;
140.00 ,
82.67
61.67
68.00
86.00
90.33
: 242.00
74.33
76.67
98.33
77.00
1 66.00
81.67
145.00 .
96.33
< ,
106.00
71.67
74.67
TAG SYMBOLS
Determined
to be an
outlier
0.76
-0.35
i
1.96
-0.35
-0.06
-0.48
0.94
-0.16
\" /, >^;-'',
-0.42
-0.37
-0.53
":r'::"*r:;?'">\.
0.70
-0.69
0.94
4,59 v ;
- ;' 5
Y;448.:, :,
-0.14
-1.79
-1.29
0.13
0.47
12.41
-0.79
-0.61
1.10
-0.58
-1.45
-0.21
4.77
0.94
1.70
' <'
-1.00
-0.77
IT s Above
li = Below
0.63
-0.47
.... * , ^ #
1.84
-0.47
-0.18
-0.60
0.81
-0.29
;:-\s\ ">:-* .
-0.55
-0.50
-0.66
' '" -':', ' '
*--
"/;'" Vป: -
, ' "" >
0.58
, - /.',,
-0.81
/' , -'
0.81
i.46 X
/'";'';;:"-<>; '
4^vf-^l;
-0.26
-1.92
-1.42
0.00
0.34
12;28 x
-0.92
-0.73
0.97
-0.71
-1.57
-0.34
4.65 x
0.81
- '-' ' ,
1.57
, -
-1.13
-0.89
control limit
control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Gross Alpha
Lab Res. 1
PT
PV
PW
PY
Q
QC
QJ
QK
QL
QP
QQ
QT
QU
QW
QX
QY
QZ
RC
RD
RE
RF
RG
RJ
RK
RL
RM
RP
RR
RV
RZ
S
sc
SD
SF
SI
SL
SM
SO
SR
ss
ST
SW
sx
sz
T
=
0 s
40.0
89.0
\ ^ *
:> > V$T:
46.0
1 *" \ V- ^ x Ss
s s "
118.0
,; ,, 's' ;>;,'.
84.0
97.0
72.0
102.0
98.0
82.0
^ 1; ซ \ v. -.V
73.0
70.0
60.0
106.0
83.0
79.0
98.0
- ' . ,I;J
83.0
. V "' "-;"':,- '
73.0
82.0
83.0
83.0
83.0
88.0
100.0
49.0
75.0
67.0
79.0
60.0
92.0
65.0
81.0
69.0
84.0
64.0
Res. 2
39.0
91.0
'-\\ ';-' "V1'
* - **!.. * >* ; ^
50.0
1^ ;r\;;"^
123.0
;svs $x^*-w
83.0
100.0
90.0
80.0
126.0
82.0
** '>^-
83.0
74.0
51.0
99.0
79.0
77.0
88.0
,f ' * -s->'? -
75.0
^-pt^:'V"
71.0
78.0
82.0
84.0
83.0
87.0
104.0
58.0
71.0
75.0
71.0
64.0
85.0
71.0
85.0
80.0
81.0
64.0
Res. 3
37.0
94.0
S! - '"' o^'"'^ -. ""-. - -
:S>r>: *..
52.0
;p/yr:\^ ,;
135.0
J^;gC::C^
92.0
102.0
64.0
99.0
115.0
84.0
'- /'*??%'
80.0
72.0
49.0
96.0
88.0
77.0
95.0
^,\f:^^X?'
70.0
j^ , i- f, ; C
70.0
81.0
83.0
85.0
82.0
87.0
104.0
56.0
89.0
86.0
73.0
63.0
85.0
74.0
86.0
66.0
97.0
67.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
1.53
2.52
- \ < .
-> 0- ,^ ' - '' -'
3.06
", '- -" \ v"'
8.74
;;*Vi\'\?"\^' '
4.93
2.52
13.32
11.93
14.11
1.15
>" "-' - ~ >- - ,"
5.13
2.00
5.86
5.13
4.51
1.15
5.13
s ^ * -.^ \ "" ^ s
6.56
',', x '- -l- -
1.53
2.08
0.58
1.00
0.58
0.58
2.31
4.73
9.45
9.54
4.16
2.08
4.04
4.58
2.65
7.37
8.50
1.73
Rng anal
(R + SR) Average
0.081
0.134
- - > -K "> ,
0.161
0.456
"'r-/-\--^
0.242
0.134
0.698
0.591
0.752
0.054
, ,;V *
0.268
0.107
0.295
0.268
0.242
0.054
0.268
',ป >, "'
0.349
0.081
0.107
0.027
0.054
0.027
0.027
0.107
0.242
0.483
0.510
0.215
0.107
0.188
0.242
0.134
0.376
0.430
0.081
38.67
91.33
-, * -t "' y*"1
.V'-':,-,yvv\ปxv
49.33
'',"" "\i " ! \
125.33
4>7;:^:^:;^
86.33
99.67
75.33
93.67
113.00
82.67
;^S v-^-
3.22 ^
y^3liV .;
0.15
1.20
-0.71
0.73
2.25
-0.14
\;-.-^- v<-i^i:
-0.45
-0.98
-2.45
1.25
-0.08
-0.53
0.73
* ^%"v ^ ^ ^ - "* s ^ % ^ ' i
" 1s' ^\ x ^ t""" "^
-0.66
-'V,' - *.-' '"-1 i
-1.03
-0.32
-0.14
-0.03
-0.14
0.23
1.44
-2.37
-0.48
-0.66
-0.79
-1.74
0.23
-1.13
-0.03
-1.00
0.23
-1.53
ft = Above
U = Below
-3.73 U
0.42
\7^;>>'t-"ซ.y
:-:::$r - ..-ซ'
-2.89
'\ ' '-
3.10 It
-f->\ -1- *'
0^03
1.08
-0.84
0.60
2.13
-0.26
X-^"^\ซ';
-0.58
-1.10
-2.57
1.13
-0.21
-0.66
0.60
- ""X ^ -V V " ^ 9
-0.79
1 ' ~.ป ,
-l!l5
-0.45
-0.26
-0.16
-0.26
0.10
1.31
-2.49
-0.60
-0.79
-0.92
-1.86
0.10
-1.26
-0.16
-1.13
0.10
-1.65
control limit
control limit
-------
8/34
EMSL-LV Performance Evaluation: Blind-A,
Gross Alpha
Lab Res. 1
TA
TD
TE
TG
TH
TI
TL
TN
TQ
TS
TY
U
UA
UE
UG
UK
UN
UP
UQ
UW
UY ;-,
VA
vc
VG
Vl ' "
VJ
VM
VN
yo
VT
w
WA
X
z-
81.0
114.0
79.0
75.0
84.0
93.0
103.0
93.0
87.0
64.0
88.0
104.0
102.0
82.0
105.0
58.0
86.0
88.0
89.0
97.0
74.0
119.0
57.0
78.0
115.0
N \ " '
55.0
177,0
Res. 2
79.0
106.0
78.0
75.0
89.0
94.0
104.0
94.0
91.0
76.0
82.0
86.0
110.0
82.0
103.0
53.0
93.0
84.0
78.0
- ' ^ ' '
102.0
84.0
207.0
62.0
86.0
107.0
' -V. - ' --Xs " f
67.0
158.0
Res. 3
90.0
105.0
80.0
104.0
88.0
94.0
110.0
95.0
91.0
65.0
85.0
92.0
94.0
95.0
102.0
54.0
93.0
88.0
86.0
\ .' >
93.0
91.0
15.0
' _ '
f ,,
53.0
92.0
115.0
-';<' ;;"
72.0
170,0
Data
Average
38.67
49.33
51.00
53.33
54.33
55.00
Tag
Ji
Lab
PT
Q
EH
RD
SI
UN
Exper.
Sigma
5.86
4.93
1.00
16.74
2.65
0.58
3.79
1.00
2.31
6.66
3.00
9.17
8.00
7.51
1.53
, -i" "
2.65
4.04
- 2.31
5.69
t
4.51
8.54
96.11
4.51
7.02
4.62
;*" '->->-,>' -' "- '
8.74'
9.61
Rnganal
(R + SR)
0.295
0.242
0.054
0.779
0.134
0.027
0.188
0.054
0.107
0.322
0.161
0.483
0.430
0.349
0.081
0.134
0.188
0.107
0.295
0.242
0.456
8.914
0.242
0.376
0.215
0.456
0.510
19-Apr-1994
Average
83.33
108.33
79.00
84.67
87.00
93.67
105.67
94.00
89.67
68.33
85.00
94.00
102.00
86.33
103.33
55.00
90.67
86.67
84.33
"
97.33
83.00
113.67
57.33
85.33
112.33
-< '
64.67
168.33
Normalized
(grand-avg)
-0.08
1.88
-0.42
0.02
0.21
0.73
1.67
0.76
0.41
-1.26
0.05
0.76
1.39
0.15
1.49
-2.31
0.49
0.18
0.00
_ '
, ' "' v^' '< f _ f
1.02
,
-0.11
2.30
,
-2.13
0.07
2.20
V ''
-1.55
6,61
deviation
(known) Tag
-0.21
1.76
-0.55
-0.10
0.08
0.60
1.55
0.63
0.29
-1.39
-0.08
0.63
1.26
0.03
1.36
/".' "''<
-2.44
0.37
0.05
-0.13
-' \, ';- ,,\ , -
;'* ป 'C'/>
- , '
0.89
, v'o '!. ' -*'-'
-0.24
2.18
-' - .
-2.26
-0.05
2.07
, -" . : ~, v i
-1.68
6.48 x
sorted by Laboratory Average
Average
= No data submitted
0 s Insufficient data
X
55.33
57.33
61.00
61.67
62.33
63.00
Tag
Lab
FL
VO
I
NK
SR
DG
Average Tag Lab
TAG SYMBOLS
s Determined to be an outlier
63.67
64.67
65.00
66.00
68.00
68.33
HP
X
T
PA
NO
TS
ft = Above control limit
!! = Below control limit
-------
EMSL-LV Performance
Gross Alpha
Average Tag
68.67
69.00
70.00
70.33
71.33
71.67
71.67
71.67
71.67
72.00
72.33
73.33
74.33
74.33
74.67
74.67
75.33
75.67
75.67
76.00
76.00
76.00
76.33
76.67
77.00
, 77.00
77.33
77.67
77.67
77.67
78.00
78.00
78.33
78.33
78.33
78.67
79.00
79.00
79.33
79.67
79.67
80.00
80.00
80.33
= No data submitted
0 = Insufficient data
Data sorted
Lab
FJ
JS
ST
GZ
RR
sx
PQ
JN
AR
RC
GQ
CA
SO
OS
PR
FZ
QT
MV
AK
SM
RM
BH
EV
OX
P
C
AP
RG
M
HI
CK
CJ
SL
LF
CG
QZ
TE
LR
AL
LT
DB
KX
KE
RV
Average
80.33
80.67
80.67
81.33
81.67
82.33
'82.67
82.67
82.67
82.67
83.00
83.00
83.00
83.00
83.33
83.33
83.67
83.67
83.67
84.00
84.00
84.00
84.00
84.33
84.33
84.67
84.67
85.00
85.33
85.33
85.67
86.00
86.33
86.33
86.67
86.67
86.67
86.67
87.00
87.33
87.33
87.33
87.67
87.67
Evaluation: Blind-A, 19- Apr- 1994
by Laboratory Average
Tag Lab
AJ
GT
DT
JY
PB
LL
SC
RZ
OX
NJ
VJ
FU
E
CS
TA
RF
L
ER
DZ
SW
S
JQ
1C
uw
BM
TG
JE
TY
VT
CQ
DS
NT
UE
QP
UQ
BO
BA
AA
TH
SZ
ss
SD
CE
BK
Average
89.00
89.67
89.67
89.67
90.00
90.33
90.33
90.67
91.00
91.33
92.00
93.33
93.67
93.67
93.67
93.67
94.00
94.00
94.00
95.00
96.33
96.33
96.33
96.33
97.00
97.33
97.33
97.33
98.33
98.67
99.67
100.33
102.00
102.67
103.33
103.33
104.00
104.00
105.67
106.00
106.33
106.33
106.33
106.33
TAG SYMBOLS ft =
x 3 Determined to be an outlier ^ =
9/34
Tag Lab
EO
TQ
J
AW
D
O
DD
UP
AF
PV
FF
MQ
TI
RJ
QU
BC
U
TN
K
IE
PG
N
LG
HK
AZ
VG
EB
CO
OY
BS
QQ
RE
UA
SF
UG
A
HL
DE
TL
PM
JG
ID
CX
AU
Above control limit
Below control limit
-------
10/34
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Gross Alpha
Average
Tag
Data sorted by Laboratory Average
Lab Average Tag Lab | Average
Tag:
Lab
106.67
106.67
108.33
109.33
112.33
113.00
BG
AO
TD
KT
W
QW
113.67
117.67
123.33
125.33
140.00
142.67
IT
x
X
VM
BN
FN
QJ
NH
NA
145.00
146.67
156.00
168.33
232.00
242.00
x
x,
X
X
X
X
PC
FE
HU
Z
AE
OF
responding labs
Frequency distribution
-6
-4 -2 0 +2 +4
Normalized deviation of the mean from the known value
responding labs
Frequency distribution
10
I.II...T-.
-4 -2 0 +2 . *4.
Normalized deviation of the mean from the grand average
= No data submitted
0 = Insufficient data
TAG SYMBOLS
x = Determined to be an outlier
IT s Above control limit
li = Below control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
11/34
Radium-226 Statistical Summary 216 Participants
The known value of this nuclide is 20.0 pCi/1 with an expected precision of 3.0; the control limits
are 14.8 to 25.2; the warning regions are 14.8 to 16.5 and 23.5 to 25.2
98(45.4 %) Failed to respond ;
4<1.9 %) Outliers
15(6.9 %) Out of control
but not an outlier
Statistic
. 81 (37.5 %) Within all limits
Respondents
18(8.3 %) In warning zone
but within control
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
21.41
11.67
136.15
54.51
7.03
0.12
19.43
-2.83
-0.05
Grand Avg 19.72
4.23
17.93
21.47
-1.39
-0.07
19.40
-3.00
-0.14
19(16.1 %) More than 3 norm. S.D. ,
6(55.9 %) Within 1 norm. S.D.
of known value
.
18(15.3 %) Between 2 and 3 norm
i
15(12.7 %) Between 1 and 2 norm. S.D.
-------
12/34
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Radium-226
Lab
A
AA
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
CM?
CO
CP
CQ
cs
ex
D
DB
DD
DE
DO
m
DL
DM
=
0 =
Res. 1
19.2
-' -; * *
20.0
19.5
19.3
18.5
17.4
17.5
V , ' " j ' ,
18.4
18.1
14.6
23.6
15.0
31.7
17.0
20.2
16.3
19.0
16.3
18.6
15.9
17.4
17.1
14.0
19.0
- \ ,v - *:
26.7
20.2
j
20.9
''" ''' , :v
^
Res. 2
20.6
-''"-'i, -
20.2
19.5
22.5
19.6
19.1
18.7
1 . "
18.9
18.4
15.9
24.4
15.2
31.9
19.1
20.0
15.3
19.2
16.1
s = '
18.0
16.7
20.0
17.9
16.0
18.6
, - '" ./. : "
- ;;v '-\ \v-
', _ ,j,<;~
26.3
19.1
20.9
\~ " -, v
-.v '~"v /
Res. 3
20.0
20.3
18.8
* '",
20.4
20.2
20.5
'' - :"",''
19.8
V -
19.5
18.4
16.9
23.6
15.9
31.3
17.8
20.2
15.1
19.1
16.2
< ,
"' -'-x ~'-"-"
17.6
18.2
20.5
18.7
17.0
17.6
\ ^ ' X ป, - "" 4x J
>, ซ"'--; '" '*:*ซ%
^\ <, ''~',.
\
24.9
19.0
20.9
. -
--<-, -, s :;,
No data submitted
Insufficient
data
X
Exper.
Sigma
0.70
0.15
0.40
1.63
0.86
1.55
1.15
0.55
0.17
1.15
0.46
0.47
0.31
1.06
0.12
0.64
0.10
0.10
s > s
, "" '''
0.50
1.17
1.66
0.80
1.53
0.72
iv;.,'""*v'y:;'
"("' -\- - , ,'- "'-'
I V '
0.95
-.
0.67
0.01
" '''', ^ ~- J ^
Rnganal
(R + SR)
0.276
0.059
0.138
0.630
0.335
0.610
0.453
0.217
0.059
0.453
0.158
0.177
0.118
0.413
0.039
0.236
0.039
0.039
11
0.197
0.453
0.610
0.315
0.591
0.276
; ^
0.354
0.236
0.000
'! :,
*
Normalized deviation
Average
19.93
',' , ~ -;''
20.17
19.27
20.73
19.43
19.00
18.67
^ s ' " * ,
18.93
18.30
15.80
23.87
15.37
31.63
17.97
20.13
15.57
19.10
16.20
18.07
16.93
19.30
17.90
15.67
18.40
""''' ":-
,.,
25.97
19.43
<
20.90
TAG SYMBOLS
= Determined
to be an outlier
(grand-avg) (known) Tag
0.12
;-\^,;..:\u,.. '-\\^
0.26
-0.26
, ' ,
0.58
-0.17
-0.42
; --
-0.61
^ * *' ' "* *. '' "
-0.46
-0.82
-2.26
2.39
-2.51
6.88
-1.01
0.24
. V < ^ -. * ' /" $ \
-2.40
-0.36
-2.03
f"' ' ., S. ' s
-0.96
-1.61
-0.24
. -r.05
-2.34
-0.76
' \ ~" 's-> ', '
' " "" V,' -'"*', '
\ ' * , ^
3.61
'- ,
-0.17
0.68
' ft f" " " '' ""
* * "" ' >
tt = Above
JJ = Below
-0.04
::rp r":i^^ *
0.10
-0.42
%-> ; - ^;-,
0.42
-0.33
-0.58
, ';* " '" , ' '
-0.77
:'/''' ' -'V ,'
-0.62
-0.98
-2.42
2.23
-2.68
6.72 It
-1.17
0.08
'" " '' '" ''*,
-2.56
-0.52
-2.19
' ' " - * - * \
;V-C:.: ''
-1.12
-1.77
-0.40
-1.21
-2.50
-0.92
^^3* '*%?*'
;;://, *, ; ;' , rV-
' '' " -. ~~ V '
"- , -:C: ,
3.44 tt
,: :* >
, -,'
-0.33
- 9
0.52
' ' - r, '.t\
*
;''/*'' ' '" ' '
,' -
control limit
control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Radium-226
Lab Res. 1
DO
DS
DT
DZ
E
EB
EH
EL
EO
ER
EV
EX
FE
jfF
FJ
FL
FN
FU"
FZ^
GI
GQ
GT
GZ
HH
m
HK
HL
HP
HU
HX
I
IA
1C
n>
IE
ru
J
JE
JG
JH
JN
JQ
JS
JY
=
0 =
' . ', l'"-A*
: W. ''";
18.2
20.9
17.4
33.8
" " ^ s \
15.9
20.1
17.8
-' V"
18.4
- , '
-- " ;; ":>',:. ;-
' J ^ ; - "-"'
23.6
,> , ;:' -T-;
, l ^ \
16.3
11.1
' * ' ' ' ,' '
18.6
18.7
24.7
20.8
16.8
X'-'\v
ซ!NXX-;;
21.4
18.9
28.9
14.0
21.0
16.4
13.9
Res. 2
N-: V4 4-K
" -*Ov? ''"s'v
20.2
20.4
18.2
35.1
ซ%s<-s '^ v v,. .. ;""*
17.3
19.9
18.6
V VVVV
--.,-.,-' -V~-
18.9
1 ^ .V^f^ !
-:';^;;v :-;
'Y'^A -, r."
21.2
Vxrh'cJV. "
5*.'^X-,
18.4
10.4
* /: ^ sV"' .<- *, , ,\-
"! " * ' C> '
* * s ^
- r /-\ ^~ %
20.3
18.7
22.5
20.8
- . / T ;'
19. 1
^^^^'J^
] ^r^:^r?v-
20.1
20.6
26.1
16.9
20.0
20.9
18.2
Res. 3
- -N v, ""^ x^ V ^s
4->'ป^.V,; V
21.4
21.1
17.6
31.2
SA'V >>- -
19.3
20.0
18.9
J19.1%
," O " "v
.^0 ^''i* ^vS ^ ^
* ^ ^ " "" ^ ""* s"" V ""
20.0
IV" > ฐr :
:'A- ; "
20.9
9.8
v-.v \ V -
N " - v ^ \
*' n s "
s V '"" ^ *" " \
21.3
18.7
24.9
20.7
;y --""T '
19.3
'fvCTPf '..
"-'if?/,>-/ x
19.6
20.1
28.9
14.1
22.0
18.7
14.5
No data submitted
Insufficient
data
x =
Exper.
Sigma
' s * "
; ป >.!: '
1.62
0.36
0.42
1.99
1.71
0.10
0.57
0.36
" -
1.83
'"- ^ \ '
; /;\\^-
2.30
0.65
V/ '. (, ' ';
1.37
0.00
1.33
0.06
1.39
% > ; ; t "f \
0.93
0.87
1.62
1.65
1.00
2.25
2.33
Rng anal
(R + SR) Average
i: -V \ - :
0.630
0.138
0.158
0.768
V"T'V
0.669
0.039
0.217
0.138
- , 5l c'5 :-v
0.709
;ป
0.906
0.256
0.532
0.000
0.473
0.020
0.492
* ,.
0.354
0.335
0.551
0.571
0.394
0.886
0.847
or-\;;>^>'^%-^
,\,:4^v. ^"';1'^
19.93
20.80
17.73
33.37
~ "" J\ ::V v'
17.50
20.00
18.43
1 \ ^; ; ;-:4;.
18.80
, X
N * ? ^ ;V^ &
s X1""1 ^ >-. ' " v >
21.60
' NS"- \ >".=','
r '. ~i -~ \ " - ' - *
18.53
10.43
" " ; ^ \\ < S"
X , /, , '^*
- v "" s V w> -^
" * . -
20.07
18.70
24.03
20.77
, ,--*-> t^\
18.40
, -\ ,, ^ซx-u /' -
:-; _ /;--'
20.37
19.87
27.97
15.00
21.00
18.67
15.53
TAG SYMBOLS
Determined
to be an
outlier
13 / 34 ]
Normalized deviation
(grand-avg) (known) Tag
V '^V? A-v/i^^ i -:
^^vQ^^;;:V^
0.12
0.62
-1.15
7.88
^ >*^ VV,;-,^ ^ __ ^
-1.28
0.16
-0.74
>xN^. ,'
^0.53
," - -VvV'rWฐ -
s^0^^'' '" ' i N V^-.^ V\^X ^
-\!S!^>!',* ~> *- ,'-C
1.08
-VC-'1V -! W ~ " "
"v#- :"vV
-0.69
-5.36
,^;~7v':^\ T '
"~" "/ \* ", ^ ^
" " " ^ \%
0.20
-0.59
2.49
0.60
, ",-\,-\ \ ,--u
-0.76
V~i"ฐ^'x<^V
"" -'. >
0.37
0.08
4.76
-2.73
0.74
-0.61
-2.42
ft = Above
U s Below
;:>^:v Vlป ,
"' ;>,".'"- ,
-0.04
0.46
-1.31
7.72 ft
% ซ s\^
-1.44
0.00
-0.90
.> '--,;' " * '
-0.69
. '' ' ' -' - ' " ,
vX ', 'V ' :
' '^V- !: f+ ,'
0.92
/', -~ / -> ' * *'
":?;^<\T-%*-
-0.85
-5.52 li
\ ; -. ^ ^
- > 3-; , - -
\ฐ "; s ;\\ซ
V\-'\*'- ;/' ,''
0.04
-0.75
2.33
0.44
^ "." / ,
-0.92
i>rv^/
*'-,' -' ,< -'
0.21
*
-0.08
4.60 ft
-2.89
:.:.'"::. V.
0.58
-0.77
-2.58
control limit
control limit
-------
14 /
34
Radium-226
Lab Res. 1
K
KE-:
KM
jg^..
L
'LF'
LG
LL
LM
LR
LT
M
MA
MN
MO
MP
MQ
MS
MV
MY
N
NA,
NG
NH
NT
NJ
NK
NO
NT
O
OF
OS
OX
OY
P
PA
PB
PC
PG
PM
PP
PQ
PR
=
0 s
18.2
* 7 \ ' '
^ ;"" ' " ";
18.7
' '
50,0
19.2
23.0
;, , ><
- ' ' '
'- ':--'-,
20.7
118.4
_.
14.2
21.0
', ' ' '
22.1
19.8
- ,
16.2
20.2
18.7
20.2
20.0
19.0
18.3
16.0
17.8
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
Res. 2
19.6
"""-.
* "> ' : " *'
18.8
,\ "/:, ~-V-
\ i ~ >-
V' ' . v:'.1
nY8iO-
19.2
26.0
\ , _ i > ,
0 v\. "- ,
21.2
119.9
15.5
; '//
20.0
,-" -
23.2
20.2
16.5
,,"
20.4
18.5
20.7
20.2
20.1
17.5
16.0
18.8
Res. 3
19.5
' "'.''
1 . '/- * f-''
\ ' ""'
18.9
"/, > < - < *
J" 4 "j
(x< .';-' ,.' -';/'-
-' ^,1106.0, '-
18.7
23.0
/ '^ - - - 7:- ;
*" , <\
71: ' ,,,\'
.^"-Vr;'; C
;;.l/ r/-":-s
20.0
119.3
s "" -^'
14.9
18.0
% " :*x ::'' /
24.5
20.6
, - -'-' ';-'/'
16.6
J( - >. [ -.!:'''
19.8
19.0
21.4
20.2
20.9
18.2
16.0
21.5
' !~' '' ',
No data submitted
Insufficient
data
X s
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand- avg) (known) Tag
0.78
"w. f
0.10
>! ,
,'
i 28.10 ,
0.29
1.73
, T
x ' - - "- ;- -< *
,:,'- -' -. -'
0.60
0,76
0.65
, - '.
1.53
1.20
0.40
0.21
' '
0.31
0.25
0.60
0.12
0.95
0.44
0.00
1.91
0.276
, v
0.039
, ,
- - '
20:097
0.098
0.591
" " "T'-'
<--'-,'
0.236
0.295
0.256
0.591
0.473
0.158
0.079
0.118
0.098
0.236
0.039
0.374
0.158
0.000
0.728
* ^
19.10
'; ^
18.80
-.*,'> -ป-'-
- , , - "- . ,
79.33
19.03
24.00
'
' \>' *
" '' \: ' \ *
{;.-*'*.
20.63
11&20
- >
14.87
19.67
,
23.27
20.20
> '
16.43
"-' -'' , - '"'-
20.13
18.73
20.77
20.13
20.00
18.00
16.00
19.37
TAG SYMBOLS
Determined
to be an
outlier
-0.36
's "" ' ^ 'ซ''
'"" "" r " S \
t
-0.53
-. i. f ^ ,
<__*,,", ,\^*,>.
-0.40
2.47
-. * - >
,<
0 , ,
"'.- * :
^r~; >s-'-v^" {
0.53
57.43
-/ -" ;.^~~ ,
-2.80
-0.03
-' ! ' ',
2.05
0.28
-1.90
% * "
0.24
-0.57
0.60
0.24
0.16
-0.99
-2.15
-0.21
1t s Above
U = Below
-0.52
"- '". ' n ^ ', ~\
\^t ;;' v*', :
-V /'--' '.Vซ':<
-0.69
- -, '* , to " ,
,;
\->{-^^,*>\t> ?>
'- ;_ *
0.37
,67.27,; Xv
-' ;, " , , - *
-2.96
"'-' '; -(ป^
-0.19
^^ f
1.89
0.12
'*,-,' <'*'.,
-2.06
" > ' y "-*-
0.08
-0.73
0.44
0.08
0.00
-1.15
-2.31
-0.37
control limit
control limit
'
-------
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
Radium-226
Lab
PT
PV
PW
PY
Q
QC
QJ
QK
QL
Jt __
QF 7
QQ
QT
9u
%* llf "
QX
QY
QZ
RC
RD
'RE'-
RF
RG
RJ
RK
RL
RM
RP
RR
RV
RZ
S
sc
SD
SF
SI
SL
SM
SO
SR
ss
ST
SW
sx
sz
T
=
0 =
Res. 1
11.4
27.6
22.5
21.5
* ' -.
\ :
% ^ ' " \4
- ^ !; v ^ *" "^
"\ V^t^T-vJ
' ;-, ' ">"!XX
7.3
16.7
- ^ ^^ ฐ xC-xC \ ^
^ % " ' ^ s ^.*-
33.4
20.4
18.6
23.4
36.1
::^
21.8
S "" * ^ t N\ ^
-,
^ * '* ^
,- '*
20.3
. - - !o
16.0
17.2
21.6
20.0
16.7
21.0
27.6
9.0
17.3
18.8
16.5
19.2
19.3
Res. 2
11.0
24.9
21.3
V- SsS * Vs
f , %> " ^1*
22.0
;-^V -:;:?;"
;^7^^5
',5 5?']'" u/::
^: -^ :^^|J:-
"''" s''''^ "" J1" ''
s;\: ^,5,5 :>e
-\ -^x,ฃ;$
9.2
26.0
s -.> / ^ ^,^"^ *** %l1 " fs!!
^"c1 ^ ^ V" - ^ -^*Si
32.3
19.8
18.6
21.2
33.1
4\x- v\ ;^ '-"-v
21.4
- V-K-' v ;":-
- ,' -%f \r ^ ^
--^ '<- ,-.' '/
21.2
^V^, 0 -, ;^, ^
, .,..^ " v-- <% \\
20.6
17.6
20.2
20.8
16.1
18.2
25.9
8.5
18.1
18.8
18.6
20.1
20.5
Res. 3
10.9
23.0
20.1
V' >v'-"^ ' '-
24.7
' v - ^ '' ' V *
*;\ ' -/^" ^x '
< '"'-''-^x '" -
^ij. ^,s 5 '.^j ,_ v
V;>"^\\v;^,,;
v^J-'V-^-
10.4
16.9
^?T" ssTs'"^ "v
^^ %i" ''^ ^X^
32.9
20.2
19.7
20.9
26.0
,?>.ป-,, ,~ ,,
20.2
;
v\^ _, ^ ^^
\- "
''">^ "*". v" +
V *v^ \ ,v\\
17.8
^^:\- o * .
V" T """x %
18.4
18.1
20.6
19.9
16.3
17.9
27.0
8.2
17.4
20.1
17.9
18.8
20.0
No data submitted
Insufficient
data
x. =
Exper.
Sigma
0.26
2.31
1.20
1.72
x1 ปi-?. : s _
ซ -\> >\ , .' : -
1.56
5.31
^ ^^ s -.- -ฐ O
0.55
0.31
0.64
1.37
5.19
--.
0.83
1.76
< , ,
2.30
0.45
0.72
0.49
0.31
1.71
0.86
0.40
0.44
0.75
1.07
0.67
0.60
15/34
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.098
0.906
0.473
0.630
"- '-%..
,
s\ - '
',-' ซ!
0.610
2.583
*\-."
". * ''X^ l Xs\s ^
0.217
0.118
0.217
0.492
2.883
0.315
0.669
0.906
0.177
0.276
0.177
0.118
0.610
0.335
0.158
0.158
0.256
0.413
0.256
0.236
11.10
25.17
21.30
')""'Y^A>'''VHhX'
22.73
s ^-X'' v1" " V * s " S
:/, ;v'-^-\vl^^V^
i\ ""-.-" ; \\- ^ v \ *"
y " s ^ ^^ V^s"" ^^
11 *''* v \ s " K -. s "\
^ . s vi :-.<"'''-
\ x\VX:-. i'V v-;- -:*:
\,; >--" >l " \,; ,x-
8.97
19.87
S ^ ^s s^ SA-.^.^VV. . s-.-. S X"-"^ ^
" ^ ^ *" " s s \ ^ *" - i *'''
32.87
20.13
18.97
21.83
31.73
> i " ,'{' Vป-; ' \: -- "A;
21.13
s ' V \-.\ " *" ^
-.% ^v "" ""t
"""*."'
19.77
' ^ ; . \
- - ,-- -/ "
18.33
17.63
20.80
20.23
16.37
19.03
26.83
8.57
: . ^ - ' ' ' ;. :. , .' .
17.60
19.23
17.67
19.37
19.93
TAG SYMBOLS
Determined
to be an
outlier
-4.98
3.14
0.91
S V % - ' l-
\ J
'--V. :~''' :' '-
3KVV:\:"
X ^ "" ^ "\ ^"i. ^s
,-vl-V', '-". '-x
!-ป'''-,-
-6.21
0.08
^ -y -;- ;- -^\^ - ~ "^-
7.59
0.24
-0.44
1.22
6.93
-^T'/IC-1 \
0.81
?x *! *' * ~
* - ^\ ^^
' ;-- x\ **,
' ~v^\ ;"';
" t v s ^
0.03
"",.-
--1 \ - -. - ^ -
-0.80
-1.21
0.62
0.29
-1.94
-0.40
4.11
-6.44
" ' ^ -.::*' .-'
" .-..-..-. ',
-1.23
-0.28
-1.19
-0.21
0.12
ft = Above
U = Below
-5.14 U
2.98
0.15
": ' -^\ '' ' ซ
1.58
\ " - ^ ',
;' V; : ' '
\' * -, ' :*
;- ^" ;; ,* ,
-."o -i^s s -
v">' ~,% '* "-
; " ' ซ N
-6.37 Ji
-0.08
^ ," * ^ s-
^ % "
7.43 ft
0.08
-0.60
1.06
6.77 ft
>:-..V >. 'v
0.65
*\. .* ""%'
sv* 0* * * * *
- 5' - * ,
;r ป'; '*";
;: \v-'- ' *.
-0.13
,,';'; ,ป
^ , - ซ .
-0.96
-1.37
0.46
0.13
-2.10
-0.56
3.95 ft
. "; ' *
-6.60 JJ.
, ..-T., ....... g.., .
;-'::-:
-1.39
-0.44
.:. # .,
-1.35
-0.37
-0.04
control limit
control limit
-------
1 16 / 34
EMSL-LV Performance Evaluation: Blind-A,
19-Apr-1994 1
Radium-226
Lab
TA
TD
TE
TG
TH
TI
TL
TN
TQ
TS
TU
U
VUA ' "
UE
UK
UN
UP
UQ
UW *
UY
VA
VC "' -
VG
VI
VJ
VM
, m
vo
VQ
VT
W
WA
X
z >;<
Res. 1
22.6
27.8
20.4
8.7
25.6
23.6
10.0
20.4
19.0
17.2
19.2
13.8
""'
21.9
17.8
19.8
19.5
39.8
37.6
,-.ป - -
22.8
21.4
19.4
17.5
Res. 2
23.5
31.1
16.8
10.9
25.7
21.2
9.1
22.4
17.0
19.3
19.0
18.6
21.2
18.4
20.4
20.0
~;V 4:0
*' " " ,'
30.9
, ป ;
27.3
22.3
19.4
22.4
- ''
Res. 3
25.5
32.0
20.8
9.2
23.9
20.2
9.7
24.5
21.9
19.4
18.6
13.7
tf\f,
22.6
' -. <" '
19.8
21.4
19.8
Exper.
Sigma
1.48
2.21
2.20
1.15
1.01
1.75
0.46
2.05
2.46
1.24
0.31
2.80
0.70
1.03
0.81
0.25
/, ' '' 41<2 k '' ' 0.76-
s ' s '' , '
37.9
0 v ' '"-
-v*'' ><
*
""' . , o-
^
--J
f
29.5
20.4
19.5
19.0
Data
Average
8.57
8.97
9.60
9.60
10.43
11.10
Tag
Ji
U
U
Ji
II
11
Lab
SM
QT
TG
TL
GQ
PT
*O '' '
1.29
- -.., ,
' -; :
-;, ' ;-/ :
-.- ^s
3.42
0.95
0.06
2.51
Rnganal
(R + SR)
0.571
0.827
0.788
0.433
0.354
0.669
0.177
0.807
0.965
0.433
0.118
0.965
0.276
0.394
0.315
0.098
0.276
; 0.473
Sr
V
1.608
0.374
0.020
0.965
Average
23.87
30.30
19.33
9.60
25.07
21.67
9.60
22.43
19.30
18.63
18.93
15.37
21.90
18.67
20.53
19.77
; 40*67
38,43
-> - >
'ft > "
'>
\
26.53
21.37
19.43
19.63
Normalized
(grand-avg)
2.39
6.11
-0.22
-5.84
3.09
1.12
-5.84
1.57
-0.24
-0.63
-0.46
-2.51
w. ~'\" : - \f'
1.26
-: _;;;,-
-0.61
0.47
0.03
,12.09 =
. ;
; 10.80
"/ -,
-' ;; ' ' *', * '
, "" ' ! '
,
; - , x
3.93
0.95
-0.17
-0.05
deviation
(known) Tag
2.23
5.95 ft
-0.38
-6.00 li
2.93
0.96
-6.00 li
1.40
-0.40
-0.79
-0.62
"
-2.68
"'-x -\"\- ---ป
1.10
-0.77
0.31
-0.13
1 *t^ OO v>
, / X JL*C7O - ^
.;.:;"'..; I\
* * , *'
10.64 x
, \\ , , .,
: ,;\: -- - '*;".
*
'.:-',- -< - > '>
'\ -'.-'
... * ' ,-' ;-".'
3.77 ft
0.79
-0.33
-0.21
, - .
sorted by Laboratory Average
Average
& No data submitted
0 = Insufficient data
X
14.87
15.00
15.37
15.37
15.53
15.57
Tag
Lab
NH
JG
BC
U
JY
BM
Average Tag Lab
TAG SYMBOLS
= Determined to be an outlier
15.67
15.80
16.00
16.20
16.37
16.43
CJ
AZ
PM
BO
SD
OF
ft = Above control limit
li s Below control limit
-------
EMSL-LV Performance Evaluation:
Radium-226
Blind-A, 19- Apr- 1994
17 / 34
Data sorted by Laboratory Average
Average Tag
16.93
17.50
17.60
17.63
17.67
17.73
17.90
17.97
18.00
18.07
18.30
18.33
18.40
18.40
18.43
18.53
18.63
18.67
18.67
18.67
18.70
18.73
18.80
18.80
18.93
18.93
18.97
19.00
19.03
19.03
19.10
19.10
19.23
% responding labs
in
IU" -----------
Q Kซ _ _
-6 -4
= No data submitted
[0s Insufficient data
Lab
CA
EL
SS
RZ
sx
E
CG
BH
PG
C
AW
RV
I
CK
ER
GI
TS
UN
JS
AP
HL
OY
L
FE
AU
TU
QZ
AL
SF
LT
K
BN
ST
Average Tag
19.27
19.30
19.30
19.33
19.37
19.37
19.43
19.43
19.43
19.63
19.67
19.77
19.77
19.87
19.87
19.93
19.93
19.93
20.00
20.00
20.07
20.13
20.13
20.13
20.13
20.17
20.20
20.23
20.37
20.53
20.63
20.73
20.77
Lab
AF
TQ
CE
TE
SZ
PP
WA
DB
AK
X
NJ
UQ
RM
QU
J
T
DT
A
PC
EO
HK
QY
PB
OX
BK
AE
NT
SC
ID
UP
N
AJ
HU
Average Tag
20.77
20.80
20.80
20.90
21.00
21.13
21.30
21.37
21.60
21.67
21.83
21.90
22.43
22.73
23.27
23.87
23.87
24.00
24.03
25.07
25.17
25.97 It
26.53 ft
26.83 ft
27.97 ft
30.30 ft
31.63 ft
31.73 ft
32.87 ft
33.37 ft
38.43 x
40.67 x
79.33 x
119.20 x
Lab
P
S
DZ
DE
JN
RF
PW
W
FN
TI
RC
UE
TN
Q
NO
TA
BA
M
HP
TH
PV
CS
VT
SI
JE
TD
BG
RD
QX
EB
VG
UW
LR
NA
Frequency distribution
_
lib
-2 0
Normalized deviation of the mean
*. .. .
+2 +4
from the known value
TAG SYMBOLS ft B Above
x = Determined to be an outlier U = Below
ฎl
_!
+6
control limit
control limit
-*
-------
18/34 EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Radium-226
% responding labs Frequency distribution
10-
IfilllfK
I,
T- *H
-6 -4 -2 0 +2 +4 +6
Normalized deviation of the mean from the grand average
-------
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
19/34
Radium-228 Statistical Summary 216 Participants
The known value of this nuclide is 20.1 pCi/1 with an expected precision of 5.0; the control limits
are 11.4 to 28.8; the warning regions are 11.4 to 14.3 and 25.9 to 28.8
105(48.6 %) Failed to respond;
; 98(45.4 %) Within all limits
2(O.9 %) Outliers
4(1.9 %) Out of control
but not an outlier
Statistic
Respondents
- 7(3.2 %) In warning zone
but within control
'
Non-outliers
Mean
Std. Dev.
Variance
%Coef. ofVar.
% deviation of mean from known value
Norm. dev. of mean from known value
Median
% deviation of median from known value
Norm. dev. of median from known value
20.08
4.35
18.91
21.66
-0.12
-0.01
20.40
1.49
0.07
Grand Avg 20.07
3.58
12.85
17.86
-0.16
-0.01
20.40
1.49
0.08
6(5.4 %) More than 3 norm. S.D
70(63.1 %) Within 1 norm. S.D.
of known value
7(6.3 %) Between 2 and 3 norm. S.D.
28(25.2 %) Between 1 and 2 norm. S.D.
-------
20/34
\
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Radium-228
Lab
A
AA
AE
AF
AI
AJ
AK
AL
AO
AP
AR
AU
AW
AZ
BA
BC
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CM
CO
CP
CS
CX
D
DB
DD
DE
DG
m
DL
DM
Res. 1
20.6
18.1
19.3
20.2
19.4
19.8
22.6
"'I'* ''''
16.3
16^8
14.8
20.8
20.5
21.3
18.1
18.7
;' .* 'v-,;
19.5
' ' "" r '
18.0
"-{'.
19.6
14.2
19.9
25.2
15.0
22.0
'* ' ':- "~ v V'
^
15.3
> ,
" ;
21.0
21.1
' : " ' ,' ' .
*
Res. 2
19.6
' ';
17.8
19.2
24.8
19.5
19.0
21.1
- "- >'>,-, ,,,
17.3
18.7
14.9
20.2
23.9
18.7
22.8
19.0
;' ' r - -' ' ''< ' '
20.3
i '
18.1
, i
18.5
13.3
18.9
17.6
16.0
20.2
.',;\r^'v?
r- ;.:',Vy:
15.1
20.9
1
21.1
- . :',"-"- ,
* ' -
Res. 3
19.1
17.4
19.7
23.7
19.4
19.5
16.9
4h;V; *--,\
18.2
' * \
8.7
15.4
20.5
20.8
19.1
22.2
16.9
\ "/ ," '
19.6
18.1
- '--' ;."' "
17.6
20.1
20.3
18.3
15.0
21.9
"" s \\'%
* s5 '
*"' '' ' C^'i '''' "' "'' ~~ Ji'iv'
15.8
, -^ ,'
19.8
21.0
; !, .'
= No data submitted
0 9
Insufficient
data
X =
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
0.76
0.35
0.26
2.40
0.06
0.40
^2.95
V , ^ ' ' !.\V,"
0.95
- \"
5.31
0.32
0.30
1.88
1.40
2.56
1.14
0.44
0.06
,;y \ , -
1.00
3.69
0.72
4.20
0.58
1.01
i:> ; .;'-' it;
< '."
0.36
,s%
0.67
0.06
;- - , s " -.
0.177
0.083
0.059
0.543
0.012
0.095
0.673
/ :
0.224
1.345
0.071
0.071
0.402
0.307
0.555
0.248
0.095
0.012
0.236
0.803
0.165
0.898
0.118
0.213
', *
0.083
1
0.142
0.012
19.77
-' ,
17.77
19.40
22.90
19.43
19.43
20.20
,,,,,., '" -"- -
17.27
14.73
15.03
20.50
. 21.73
19.70
21.03
18.20
X
19.80
: [' &[
18.07
18.57
15.87
19.70
20.37
15.33
21.37
, ' ',%ซ., ' - ;" ^'
15.40
20.57
21.07
1 ' ,< - -* - -
TAG SYMBOLS
Determined to be an
outlier
-0.10 ,
,"'' f >'
-0.80
-0.23
0.98
-0.22
-0.22
0.05
'- *,'', ป - ;-' '-,; i
-0.97
' , ~ -
-1.85
-1.74
0.15
0.58
-0.13
0.33
-0.65
^-'j^^^&
-0.09
; '({M ij' ' ' '*" '"" ^ "
-0.69
_ ; v;,: - " v^
-0.52
-1.46
-0.13
0.10
-1.64
0.45
; ^v^:'/:^
; .' ;^r?;5vn
-1.62
0.17
0.35
\ >
It = Above
ii 3 Below
-0.12
-:v-', V V- -
-0.81
-0.24
0.97
-0.23
-0.23
0.03
">-;>;'v- '''""
-0.98
';, ' -' '
-1.86
-1.76
0.14
0.57
-0.14
0.32
-0.66
\,ซ^>';;*r';"
-0.10
;/- \ , ป,
-0.70
^*'^'-""''*\ .
,; ' * "
-0.53
-1.47
-0.14
0.09
-1.65
0.44
' V \> '"
' <-" :. '*',
^^"V;
-1.63
:. : -*
*
0.16
0.33
; :v ', .-.
*
control limit
control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Radium-228
Lab Res. 1
DO
DS
DT
DZ
E
EB
EH
EL
EO
tWO '
Ell
EV
EX
;FE'
FF
FJ
FL
FN
FU
FZx
GE
GI
GQ
GT
GZ
HH
HI
HK
HL
HP
HU
-BET
I
1A
1C
ID
IE
IU
J
JE
JG
JH
JN
JQ
JS
JY
=
0 3
'- . ^ :. *; ,' w
**,>, ^ <
16.2
23.8
\ s s
16.8
.' =:.- '- ;:- ' V-
22.4
17.0
- ^ , , ^ ^\;
' ' '" ; -1
, ^ " ,\s^
, x
^ * /; , >vV
^ X * V vx*'* >
,, "V \ ,"f , ' \
, .-<*'- ;<;
23.4
\,x " ":
-- .;- , - "
26.0
20.0
. "" / " " -. %
* J - ^
> > , sv\
20.7
16.6
19.8
18.5
'' ^
;\ * ,- -'
15.5
22.0
16.4
24.3
19.5
14.3
Res. 2
;7-*;t?i\;V^
^^xy-V
15.6
24.1
,' . - -XV ป
17.2
* " v <" < "
20.5
18.0
*, '- \~ V'>'ฐ
x^'t- -" ^r-^'
{$-V,.^ "JV
rvA^v'dx>
\^!;;SV;tv'
ฐ * * ,*" s \ * ^ ^ x % ^
v^vl? J ,V!A
"< V --'"'' , !- !,
24.1
;'' ^XN \ /ฃl
j-x7*;^,;;-
" X S s * -' " '
28.2
20.6
> , ;?-
^ vv-.s^ ^^ ^ v^ -^X-- '
xs. < , *vC "-
'' v\ ^. ^
x- \x~--~ ""-
* s"1"^ ^ ^ " N-\
; ^ :-\!*-^-:t:'
18.6
16.8
17.8
V:V"\? \l;
; " ^;^?
,19.3^
v^^'4^3
-'t^> \&
15.7
21.9
19.9
25.2
20.8
19.5
Res. 3
y^v.syy.ฃ,v
-.^ vxy*;" '
17.6
24.1
s t w s ."XS^ v " \
^^-.\^ \
15.9
'> 5 ;V^ ^ ' ''
23.2
17.2
* S ^ ^ ^ -.-
*;>,v - -\--^\-; ''
^ii^;;
1^-V"f -->,
24^0
s*"' >* .. -.'"^ ^ ^~"-'
\"";\" ;^"r^
\v ^^- - ^ *
29.8
21.0
-:* >~; -
% v % ^ ^ ^ \
SJTป -,-*' '- ?:
..V* ^ ' ~! V ""
\- T s^';"' ^ *" " -
-t' , _ \X* >.. \- >
17.6
17.5
17.8
-,';: >->v . - - ^
H"^^\^;^
__Jฃ.l,
?v If*1--^- ; \ s ,'
':";v*T:''
15.9
21.0
19.2
25.2
22.0
16.8
No data submitted
Insufficient
data
x =
Exper.
Sigma
> V ,-"x;- - "
v. s s^ * s ' -.
1.03
0.17
0.67
'-, ,' ' ' '-' '!-
1.39
0.53
1 ~ \ \' s
\ '"- ^x1 --
** ' -f :- '
0.38
\ v
X " i
1.91
0.50
%s i ' ^ s
+t v * s v .^
X ' "% * -
1.58
0.47
1.15
* v O v "
1.67
;; '\; \" '
0.20
0.55
1.85
0.52
1.25
2.60
x\
21/34
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
-0 " ' "^! ;
0.236
0.035
0.154
" ซV ป ^ '- ;
0.319
0.118
1 ,ls' "-
"'- ' l-\~-*
.' ,- - , '
* * * .,
-" , ' ''1~
- 5," v- '
,,. ,--"
* ;: -: '* ">-'
0.083
/;-s
0.449
0.118
-. ^ -.-.
\: ' ฐ-
0.366
0.106
0.236
s (
..
0.378
s, ' ' >' "
0.047
0.118
0.413
0.106
0.295
0.614
;>>\ .C-^JxI^Vj^"-!
-."^r-.-U\V^*'^
16.47
24.00
, "" **' -'-.\'v% ' "- " ret5:
16.63
"-,">;': vX^\';,p*;'" S V
22.03
17.40
"-' ',- , ฐ"/'-'v '
" -c " -*'-' ^/S ปs VA" \ > - ^ '
- * ป V,i"'- :^V''ง,\
'"':^\'v'> ;"iv,A -
/'r ^v^y^j-
-!-ซh^ป^> --/%MV'->!
11 -. f " * /
^ ^^~f~^: ^
""^^.-^A^^^
23.83
- -\ -\- H -h",' *"'. '-'-
" t '' --s ^ %. *-.\^- "' ""* >^
* '- ".>'< vs. rl5-. % "i^V t VT
28.00
20.53
,-:;*.' _; - ป , ' '
^ ^\ V^Xi^ ^^X^^xix" ^--^^
~ ,^'1" ' "V-'-"1
ป"' "' ' - ~X"'-1 x^-'*"-
** " '^'^'i.v s s % v ^C'''^'''1
- '"' '-'- ^-" '.-,
18.97
16.97
18.47
'\ , _ \^ >v-^ ' , "!X
,, x*5.\ s' ' - Sx*"'*- -."'*-x
17.97 _
," l"^-" '"" ,"" """vr - *ปw -^
- Vs'KฃssS> '
-1.25
1.36
;>;V--\ r '
-1.19
^S;?V1^X ^
0.68
-0.92
x. "- \ ' ,' ^
C;^ -;^ ^4".'--
x !'! ' -^, "x;~\
^\f^\(;'l
- '-'ivf;'ซ
* ^^sX^^' '
0 s X^s '^^ ^ "
"V>: ;,''v^
r ^^^- '=
1.30
0 c- ^'V'-^x
-' '^i^
t,' :" ' ^-^\ \
2.75
0.16
'* f -^ " -\ x
**> ** ^ l ^ v v^% -"j;
^V'\' "^^ ,f
" "^v^VV"^ \
* s V V \VS V '"" ^ * ^
S " ^ X- ^ ^ -.' " vV
-0.38
-1.07
-0.55
-' ~ ~. , -\ ' "
' ',; t' - .' -
-0.73
^ s^ * V" *' s ^^
" * *" "" -* " S V
-1.51
0.54
-0.54
1.67
0.24
-1.11
ft s Above
Jl = Below
"s>t>v::ป--
i;'N^-'- :; *'"-'
-1.26
1.35
"x"- X " '
-1.20
f f?c "-v. , -
0.67
-0.94
. ~ ,'-
j,;\^\y - * ''
/-'xl:-\ -
^%\\ _> !ซ
-V~ y- />"'
; v;'^5 _ -'-'.
w ' s ^^
% ^ ^ % s "* S s \ * C
,x-X;-v".-. 'ฐ:ซ J
1.29
\5'i,5^ ;-:-*.!-
'>- /s"5* f *^ >'\* ^~
V'x;\x>o :-;.
2.74
0.15
- ซ .
x ^\Y--V %Vv l "
vCTj? v. \* ^
"" * """^ ' s"'* "
V ->N * 'O ^ V s' '''' ' ""
- %^> ซ", \ ' ป\
-0.39
-1.09
-0.57
' "' ; ' ' ,,*
^K::% : ; ^:>ป
-0.74
';,-C'->!vv "- *-, .' ''
'\ *"-^- \;~^ -
-1.52
0.53
-0.55
1.66
*
0.23
-1.12
control limit
control limit
-------
(r
227
34
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Radium-228
Lab
K
KE
KM
Kf
try
.*ป*ป.
L
ijT
L}
LL
LM
LR
LT
M
MA
- UMJTL*
MN
MO
MP
MQ
MS
MV
MY
N
NA
'NG
NH
Nl
NJ
NK
NO
NT
O
OF
- \
OS
ox
OY
P
PA
PB
PC
PG
PI
PM
PP
PQ
PK
=
0 =
Res. 1
19.8
- , *"
20.8
s * >
- ,
,t ,*
24.0
17.5
22.0
'-,'. ", ~: ,,
f \. ';
ซ I : ' >! '
20.5
' < . .'
20.8
19.0
-, 1
20.6
20.7
15.8
20.9
13.5
15.1
20.5
27.3
15.0
26.1
/ '- '- /' --
Res. 2 Res. 3
19.2
s
-< * ;" " " *
20.3
^ _ 4 .""/,- *
' " ' f ' - v '
\-,_ \ '-.;,V4
37.0
18.3,
21.0
*i*
'*.<'''-. '
' ' '-' ', >-"'
.' '>
21.4
'' *''
21.6
%
19.0
21.6
21.2
v; '" '" ' ฐ ' . ' ,'
18.0
' S *1'V
20.6
12.9
12.5
20.0
27.9
14.0
23.3
s ;. *s , - ^ \ -\-
4 s -x/ ' ' -' \-- "__ ,
18.0
' r
2ฐ-2
^..rr
-.'- ' <
\< ,,C' , '
,-'-'-'V '
18.0
17.7
20.0
, "
,-"'
'"'--.- V ,
"
""'
20.8
v
19.4
20.0
22.3
21.6
> X,
20.2
19.7
14.1
16.8
19.9
28.5
16.0
21.9
v,,, ' <
, ,,ซ,-'
No data submitted
Insufficient
data
x =
Exper.
Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
0.92
0.32
',;';-'^'
'.*.''
-.v,'(,v> -
9.71
0.42
1.00
- Y - _
""''
*
"" < '
0.46
- ..'' - ' -',
,. <---,,. , -
1.11
''*
0.58
" '- -. % '
0.85
0.45
; ;'.
2.20
'-.\ ' ' : "" '^
0.62
0.60
2.17
0.32
0.60
1.00
2.14
-,.-
- "
0.213
^
0.071
,- ( ' ,
3.371
0.095
0.236
- ซ
,, , 1
> s
0.106
0.260
0.118
0.201
0.106
0.520
0.142
0.142
0.508
0.071
0.142
\
0.236
0.496
19.00
,
20.43
1 . ป ' - '< '
1 "; ' x-<.,.
-'" . '.,._, -*""; ','
26.33
17^83
21.00
""' f ^ . %1" "* v
J * ' * '
v-- ' s
/ : , ',, ;:
,,'''. -'" '',
,
'
20.90
..',-' ' - ! ' ~
- ^ " ' <
20.60
19.33
. - " - -- . ''
21.50
21.17
18.00
20.40
13.50
14.80
20.13
27.90
15.00
23.77
TAG SYMBOLS
Determined
to be an
outlier
-0.37
j
"
-- ' ^ : ''
^ *
0.13
," V " ,"" '
! ' f .
'
, , , ; :- ,,;, \
2.17
-0.77
0.32
. . :, " \.
s ,- ; " .
.,-.*' '- >^;
0.29
.',., , -\ :--:,- ' ~
1 , - ";> ' ;
0.18
x , -
\-0.25
,'
0.50
0.38
.
-0.72
0.12
-2.28
-1.82
0.02
2.71
-,_
-1.76
1.28
, , .,
TT = Above
li s Below
-0.38
,'i - ,< <-'-'->>.-,.
.ij /. '!">t'-
,;' t'.'/x,*-!
**
0.12
'' --;< %'.,iป>> ,
. . \ ^ - - <
r{"' -'"- k'*'" -
*; - ,'*': '
2.16
-0.79
0.31
: -'"'> t
"V?! v> ''.
'V//' \ ';:,"
''V/Q^ !;"/
'-' :J~;", *'<:/
'ป:
0.48
0.37
', '"' '''.-'
-0.73
. ; \ '_y
0.10
-2.29
-1.84
-
0.01
2.70
, ' ', ป
-. -. ' ., ,
-1.77
1.27
' .' . - * "
-- ป*, '
control limit
control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
\\
23/34
Radium-228
Lab
PT
PV
PW
PY
Q
QC
QK
QL
QP
QQ
QT
QU
QW
QX
QY
QZ
RC
RD
RE
RF
RG
RJ
WJMT
tin.
RL
RM
RP
RR
RV
RZ
S
sc
SD
SF
SI
SL
SM
SO
SR
ss
ST
SW
sx
sz
T
=
0 =
Res. 1
12.2
18.7
17.6
v V s , ^ "
22.1
- ^ %%/ v*'
\ % .
** "" s !"'' " C ^
* s ^ ^ X %' "" " - "
20.9
9.9
15.6
28.1
20.5
20.4
26.8
23.6
, " y> " A""
24.6
1 - "'- ^"V'v.
; ,^,V ,,Vv, ,
1 '. '. " ^ >x
21.6
' ! v .> -1
\ V'/iLl-Vi
20.4
16.5
20.5
21.4
20.1
20.7
>
15.9
21.1
19.3
19.6
19.4
17.7
19.7
Res. 2
9.5
22.1
17.0
'' -^;; :'5\
18.4
&%:;<
oS:-<
sO"1 s '"'.
x.^^r'
Vs* ^ 'l\
21.3
11.9
14.2
30.0
24.3
21.3
25.0
26.3
,;'.vJ
21.0
10.7
14.5
28.5
20.0
22.1
24.7
20.0
-V':-\ \ ""'-}
20.1
' ~ \ ' fs*-
\'i-; \' s'l " " x"
,v'--';\,-0-V
27.2
'-"' v-- -i'~-
->-*' ' s\;,"'" \v/
v-'"v,XiV8;8-
20.0
18.5
21.3
21.1
20.6
18.0
18.7
' ' ' ''' ';
20.8
18.8
21.1
20.4
27.2
20.6
No data submitted
Insufficient
data
x =
Exper.
Sigma
1.44
1.86
0.38
,x-\ -;-jr:; >
1.91
'-"''"
" .'!;'-;" v
; ,v\ _;--,-
0.21
1.01
0.74
1.00
2.35
0.85
1.14
3.16
%-.--- ' x - ' \;
2.25
11 -. "'
* -" ^
".,v.-.
3.49
1,19
0.61
1.06
0.80
1.65
0.76
1.80
1.40
1.82
0.50
0.78
4.07
4.92
0.59
Rng anal
(R + SR)
0.319
0.402
0.083
"" \V ^ " * "'''.''"
0.437
; , _ ;,; '
'" , X 's
"-y' "V"'!"
0.047
0.236
0.165
0.224
0.508
0.201
0.248
0.744
0.532
-
0.756
0.260
0.142
0.236
0.189
0.354
0.177
0.402
.-.. . :-.
0.331
0.390
0.118
0.177
0.886
1.233
0.130
Normalized deviation
Average
10.57
20.83
17.43
- ^ "'-" "< *
20.53
'-> '';"';->',;"
> >;' ^''"
* : '
- *:":' ^ป*
', -*;;:?
21.07
10.83
14.77
28.87
21.60
21.27
25.50
23.30
^ s X ^ %
22.27
^ * v
> > ^ -. * .
*'~ -
23.20
s -X
" v
-'V-.,'r;ป8
20.53
17.70
21.30
22.20
20.77
20.03
17.37
'' ' ",
22.00
19.30
20.47
22.23
23.20
20.37
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
-3.29
0.27
-0.91
-^r\;r- r'\-' ;-
0.16
-VV J- -' , " _ \_
^ ^ t
>- " "" '"'''
\ " > , X " ^ '," ^
0.35
-3.20
-1.84
3.05
0.53
0.42
1.88
1.12 __
"^ o - ^ ss"w
0.76
"* ; ; '%%
/ C,
'''. s V , - ^ , ;,
1.08
v'
_] % " " " * , v v \^ 4
;: ,':-6.28:-.V.x
0.16
-0.82
0.43
0.74
0.24
-0.01
-0.94
0.67
-0.27
0.14
0.75
1.08
0.10
ft = Above
U = Below
-3.30 U
0.25
-0.92
. ;-iiv ;-. :;..,
0.15
vrr, /*.-
^ , \ \ i
x. . ,
, A ' _ซ
- v s -^
- -1' V -' - -
0.33
-3.21 Ji
-1.85
3.04 ft
0.52
0.40
1.87
1.11
"i ^C . ^ '-', * ' -
0.75
:^ ;;":.
.'\*;":; "* "
; *'\ *
1.07
o~ >/;;-', ! "
Vฃ:'%1'-
>-6.29 X
0.15
-0.83
0.42
0.73
0.23
-0.02
'i':': . ,ซ ,.
-0.95
?'.--";;'' . * '
'' - '''
0.66
-0.28
0.13
0.74
1.07
0.09
control limit
control limit
/
-------
24/34
EMSL-LV Performance Evaluation: Blind-A,
19-Apr-1994
Radium-228
Lab
TA
TD
TE
TG
TH
TI
TL
TN
TQ
TS
TY ' -ฐ';
u
UA ': \
UE
UG
UK
UN
UP
UQ
UY '\:
VA
vc
VG
VI
VJ
VM
VN
vo
VQ
VT
W
WA
X
Z
Res. 1
33.6
29.7
24.7
16.4
13.0
17.1
18.8
19.7
25.3
25.5
23.4
, ' * .
23.3
-
18.1
15.5
21.7
'f ,
14.9
' -'
22.3
26.7
20.7
17.2
Res. 2
27.3
20.5
24.8
16.0
12.6
16.9
16.0
22.9
22.9
22.1
' < -.'
19.5
' "" "" ' V '' v
23.3
"V*
, s\<
17.7
23.0
20.7
" ,/39.8-
- '., -';,'.,,+:
'','- -'''
r -f s N
16.3
- v- "
V, "' >
27.3
25.5
19.0
17.2
Res. 3
31.9
35.9
22.5
15.1
13.2
16.8
19.8
22.8
22.0
21.9
., -'!
23.1
~-'\ " -.
16.1
\
18.1
23.3
21.2
r,:-V 3
- il ' '-
' * * .-.'
'''ซ,-'
'
--
15.3
'
-r ,/ -,
.;;
._
28.1
24.3
20.9
19.0
Data
Average
1.93
10.57
10.83
12.93
13.50
14.73
Tag
X
II
U
Lab
RV
PT
QU
TH
OY
AU
Exper.
Sigma
3.26
7.75
1.30
0.67
0.31
0.15
1.97
1.82
1.71
2.02
^ " ^
2.17
4.16
0.23
4.42
0.50
0.72
' ' *\
' '
.' ' . -
'-
---"v;'";V,ซ*lซs
, , "'''' ' : =
'~ ;- -": s- -,
-1.59
' -". * ' ,- , *
- " ,-.-,,
-" v-'xซr-'
\ .' / ' --i ;
'' v !-'*,'
"'"'"''.'-Vt '
2.01
1.87
0.03
-0.80
sorted by Laboratory Average
Average
s No data submitted
0 s Insufficient data
X
14.77
14.80
15.00
15.03
15.33
15.40
Tag
Lab
QW
P
PM
AW
CJ
CS
Average Tag Lab
TAG SYMBOLS
= Determined to be an outlier
15.50
15.70
15.83
15.87
16.47
16.63
ft = Above
II = Below
VG
ID
TG
CA
DT
EB
control limit
control limit
-------
EMSL-LV Performance Evaluation:
Radium-228
Blind-A, 19- Apr- 1994
25/34
Data sorted by Laboratory Average
Average Tag
16.87
16.93
16.97
17.27
17.37
17.40
17.43
17.70
17.77
17.80
17.83
17.97
17.97
18.00
18.07
18.20
18.20
18.47
18.50
18.57
18.97
19.00
19.30
19.33
19.40
19.43
19.43
19.70
19.70
19.77
19.80
% responding labs
in. _____
IU _________
-6 -4
= No data submitted
0 = Insufficient data
Lab
JY
TI
HL
AP
SM
EO
PW
S
AE
X
LT
UN
I
OF
BO
TL
BK
HP
JE
C
HK
K
ST
NJ
AF
AK
AJ
CE
BC
A
BM
Average Tag
20.03
20.13
20.20
20.20
20.37
20.37
20.40
20.43
20.47
20.50
20.53
20.53
20.53
20.57
20.60
20.60
20.77
20.77
20.83
20.90
20.90
21.00
21.03
21.07
21.07
21.17
21.20
21.27
21.30
21.37
21.50
Lab
SI
PB
WA
AL
T
CG
OX
L
SW
AZ
RZ
Q
GQ
DB
UP
NH
JS
SF
PV
UE
N
M
BH
QT
DE
NT
UQ
QZ
sc
CK
NO
Average Tag
21.60
21.63
21.73
21.80
22.00
22.00
22.03
22.20
22.23
22.27
22.90
23.17
23.20
23.20
23.30
23.40
23.77
23.83
24.00
24.00
24.90
25.50
25.50
25.90
26.33
27.90
28.00
28.70
28.87 ft
30.93 ft
39.13 x
Lab
QY
J
BA
TN
U
ss
EL
SD
sx
RF
AI
TS
RM
SZ
RD
TQ
PP
FN
TE
DZ
JG
W
RC
VT
LR
PC
GI
TD
QX
TA
UW
Frequency distribution
jJti
ll.llll.llllll
-2 0
Normalized deviation of the mean
_
+2 +4
from the known value
TAG SYMBOLS ft = Above
x = Determined to be an outlier U = Below
+6
control limit
control limit
-------
26/34 EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Radium-228
% responding labs -Frequency distribution
-6 -4-2 0 +2 +4 +6
Normalized deviation of the mean from the grand average
-------
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
27/34
Uranium (Natural) Statistical Summary 216 Participants
The known value of this nuclide is 25.0 pCi/1 with an expected precision of 3.0; the control limits
are 19.8 to 30.2; the warning regions are 19.8 to 21.5 and 28.5 to 30.2
92(42.6 %) Failed to respond
2(0.9 %) Outliers
17(7.9 %) Out of control
but not an outlier
Statistic
. 89(41.2 %) Within all limits
Respondents
16(7.4 %) 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
24.16
3.94
15.51
16.30
-3.36
-0.21
24.27
-2.93
-0.19
Grand Avg 24.39
3.53
12.48
14.48
-2.44
-0.17
24.30
-2.80
-0.20
21(16.9 %) More than 3 norm. S.D. %
15(12.1 %) Between 2 and 3 norm. S.D
.60(48.4 %) Within 1 norm. S.D.
of Known value
28(22.6 %) Between 1 and 2 norm. S.D.
-------
28/34
i
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
Uranium (Natural)
Lab
A
AA
AE
AF
At
AJ
AK
AL
AO
AP
AB
AU
AW
AZ
BA
BC
BG
BH
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CM
CO
CP
CQ
CS
CX
D
DB
DO
DE
PG
DI
DL
DM
Res. 1
28.8
22.8
32.7
25.7
26.6
29.3
22.8
26.0
-/'- ', ;
'' - \ '
23.4
25.2
25.1
21.5
21.1
27.7
22.2
^ j
24.1
21.1
20.9
24.1
25.3
25.0
25.3
23.0
24.5
23.9
I
*
28.3
24.4
24.6
23.0
20.1
.,- ,
Res. 2
30.0
24.3
30.6
24.4
"1 '
23.1
28.6
18.6
' '-'><ป'
25.0
"AV''>> :/*''>
23.5
26.2
22.2
21.7
21.8
25.0
22.4
>* , ' '' ' -, ''
22.9
17.1
21.6 '
25.7
25.7
25.0
24.4
22.0
24.3
24.7
-; -
' '
29.6
24.6
26.9
23.0
20.2
Res. 3
29.8
24.4
33.5
22.1
',- .'
27.6
30.3
20.5
\ , .
26.1
' ,-" "'' *-,
20.1
27.1
23.7
21.4
24.5
24.8
22.8
23.0
22.6
21.2
26.5
24.4
25.2
24.1
22.0
22.4
23.7
? ' '
C \
26.9
24.5
24.8
23.0
20.3
;:, -
~" '- !
= No data submitted
0 =
Insufficient
data
X =
Exper.
Sigma
0.64
0.90
1.50
1.82
1 '
2.36
0.85
2.10
0.61
"" ' '" / ' ,' ,'
1.93
0.95
1.45
0.15
1.80
1.62
0.31
', ' <
0.67
2.84
0.35
1.22
0.67
0.12
0.62
0.58
1.16
0.53
v "^^
,' ,
1.35
0.10
1.27
0.00
0.10
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.236
0.315
0.571
0.709
0.886
0.335
0.827
0.217
0.669
0.374
0.571
0.059
0.669
0.571
0.118
0.236
1.158
0.138
0.473
0.256
0.039
0.236
0.197
0.413
0.197
,
0.532
0.039
0.453
0.000
0.039
29.53
23.83
32.27
24.07
- '-;'','
25.77
29.40
20.63
25.70
-. *". , *:',
--/--<; ,..-,..
22.33
26.17
23.67
21.53
22.47
25.83
22.47
* '
23.33
20.27
21.23
25.43
25.13
25.07
24.60
22.33
23.73
24.10
,f
*:*'- !
3.
28.27
24.50
25.43
23.00
20.20
\-:
-
TAG SYMBOLS
Determined
to be an
outlier
2.97
-0.32
4.55
-0.19
0.79
2.89
-2.17
0.76
^ * , "/"" " ^
'' ' '' ''./
-1.19
1.03
-0.42
-1.65
-1.11
0.83
-1.11
;: ' ' .'"\
-0.61
-2.38
-1.82
0.60
0.43
0.39
0.12
-1.19
-0.38
-0.17
s / "
2.24
0.06
0.60
-0.80
-2.42
,/ - \ ''
' "'
IT = Above
li s Below
2.62
-0.67
4.20 ft
-0.54
*
0.44
2.54
-2.52
*
0.40
/;V- V \'V '
" ''~V' ' '
-1.54
0.67
-0.77
r2.00
-1.46
0.48
-1.46
'"" ^'.--^V'^
-0.96
-2.73
-2.17
' ' ' ' *',*.
* -
0.25
0.08
0.04
-0.23
-1.54
-0.73
-0.52
. ' % Vi-.J , % m
-
"'- ",-""'
i - ' ' ' \ '
- ,ซ
1.89
-0.29
0.25
-1.15
,
-2.77
i <
*
, ' , , , , , * , '
control limit
control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
29 / 34 1
Uranium (Natural)
Lab
DO
DS
DT
DZ
E
EB
EH
EL
ER
EV
EX
FE
FF
FJ
FL
FN
Fir
FZ
GE
GI
GQ
GT
GZ
HH
m
HK
HL
HP
HU
HX
I
IA
ic
ID
IE
IU
J
JE
JG
JH
JN
JQ
JS
JY
=
0 =
Res. 1
26.2
* - - ', ' ; ; s
26.5
30.6
22.1
24.1
23.5
20.1
! ' _ : <%-
1 , s * V\ -
24.3
- .. /--\\ '"ci
^';-t-9J7;^
\ % % V
19.5
26.9
1 X "
27.4
-, . ,
*
23.1
30.4
25.6
13.2
31.4 ^
30.9
21.6
23.8
23.1
18.9
24.7
Res. 2
22.8
K""--^'^-\.,-:^
22.8
31.9
22.9
25.1
22.7
21.6
S'^|> . \' ' V^vf
^Ky'V;/;?1,
23.9
^^-K^-itSr'
^';vj-0<8 )ฃ/':,
^s^-v.Vvx; ^"X^,"^ -.
20.0
C-s>,F>or''.^'
25.6
x^*'"^xl\\^^V<'
"",:?? ';?--'f
29.3
S x """ ^ 5,
X,V''\\ i^x -
> AV\^; - ''
24.4
27.4
26.1
13.2
32.4
|ip;Si|
31.1
20.1
25.4
26.0
18.9
22.8
Res. 3
23.2
- ป\ i
25.2
32.3
22.8
25.3
- " "" " % V
25.2'
22.1
-, , ' -',\ : .'
x'?\!;t 'V"
23.9
Vs ""j " '^'" ^
,r;,9,^;.
r-xx'S>'< \
19.1
^-C-^*
28.5
/. \~\-~"
28.3
Xsv-J A>-X
S>^ ''
22.0
32.8
25.1
13.6
28.2
1^:^
32.3
20.2
25.2
25.0
19.1
23.6
No data submitted
Insufficient
data
x =
Exper.
Sigma
1.86
1.88
0.89
0.44
0.64
1.28
1.04
X . ," * > * '
0.23
~ ' '^ ' ,% l
,x\vNOป10,
- ,v ,,^ ^.^
0.45
'\ '* ' , ,: . - -v "*
1.45
% \ Xs
^
0.95
' -<' '.;
1.20
2.71
0.50
0.23
^ ^\ ^ % * k >
"-. ^"s"" s ".
2.19
0.76
0.84
0.87
1.47
0.12
0.95
Rnganal
(R + SR) Average
0.669
vr :- -' ~ ::-.
0.728
0.335
0.158
0.236
h s , - s ^^ '-%.
0.492
' " A s - > """ ' '
0.394
" o ' - "* A -- - ^
0.079
^V ^.V^o/, - ,'-
- 0.039;' y \;r;
;;* -'o'' ^\ ,"V5
0.177
"V -"'''/'-';
0.571
-'"'' ^^ % ^S'' ^ ^i ** ^
v "" * - ^ "" ,X^\ ^
- ,: / -x; >/^-
0.374
^-, , ~.--\
0.473
1.120
0.197
0.079
',', " v,?- , %"V>
0.827
0.276
0.295
0.315
0.571
0.039
0.374
24.07
*""'; ',T!
24.83
31.60
22.60
24.83
- s ; -
23.80
21.27
24.03
;; ;.;,!; 0
9^8p
'ป> ^Vf
19.53
v;- <^c
27.00
v/;^
28.33
s -^- - -<.-1
-v -V*.
r \W\
- C, ' i -
23.17
30.20
25.60
13.33
30.67
31.43
20.63
24.80
24.70
18.97
23.70
TAG SYMBOLS
Determined
to be an outlier
Normalized deviation
(grand-avg) (known) Tag
-0.19
^^ST^;";;; "
0.26
4.16
-1.03
0.26
- -\ > - - 0 ,ฐ-
-0.34
~_-1.80
\ s "
-0.21
" " " - 1 v * , ^ "
:^-8ป42ซ^C'
-:V^;" ^r^v?^
-2.80
'iiVvi-'-'C^V^'"'
,.v,.l;51
;o-." ^xN"-^-- "~*v ^' *x ;?'"''"
'v -Vv-^x;>^>"
2.28
-\^;;;^ix^
^Y\s-!'-, X >'ป->%^,,
^ ;'''"'" \ -
-0.71
3.35
0.70
-6.38
3.62
* - ;; ; * ; ^^ ^\
^ "" x * _ % v' " v '"" '
4.07
-2.17
0.24
0.18
-3.13
-0.40
ft = Above
Ji = Below
-0.54
\V'-\: 7.ป "'.
-0.10
3.81 ft
-1.39
-0.10
-0.69
-2.16
w v % -. % v
" " 9
V ^ % -
-0.56
%'i:-;vj. V;*
f-%;78-/.,;' x: -
::>V "v :-\"'ซ--
-3.16 &
\V>: ;-',;ซ-;
1.15
^V>v.''--.ซ :!
' ' r- / '* ' '
1.92
v-'- -.- ;; . '
:\"".AV/;^ป-'
ซ '.;.' ; .,
-1.06
3.00
0.35
-6.74 U
3.27^ ft
3.71 ft
-2.52
-,, ป^'-
-0.12
-0.17
-
-3.48 &
-0.75
control limit
control limit
-------
30/34
EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Uranium (Natural)
Lab
K
- KE,'
KM
KT
KX
L
LF
LG
LL
LM
LR
LT
M
'MA,
MO
MP
MQ
..MB'
MV
MY
N
NA
KG
NH
NT
NJ
NK
NO
NT
O
OF
OS
OX
OY
P
PA
PB
PC
PG
PI
PM
PP
PQ
PR
Res. 1
27.5
f '
18.0
: - - <
28.2
/ %' -' -' ' <."
29.8
,/'
' ;
, .'<,<,** ' : \ "*
- ',-*..
32.5
28.0
24.0
22.0
23.0
23.2
21.3
21.0
18.5
20.7
22.4
25.5
23.2
21.0
23.1
24.3
Res. 2
27.3
19.0
24.0
, ^ * , ;- 'X*''
\H '*'-'
27.6
1 >_
^ '""
- , %
29.0
28.0
24.2
23.0
25.1
23.8
22.9
23.0
18.1
' .v
20.4
21.6
24.7
24.4
22.0
23.1
24.6
Res. 3
23.5
- "-..
'0\ '>' ' V
21.0
V , , ' , '
25.9
; "Y "'''''W'"-
- vv- ":--V-,'
1 "'' s.
"% * \ ' ,
26.8
, ' j
/V ^ 'Y'***'
\ . ,-- '-;-^
'. . vv.i;
"-.""' V1 >" ' s
30.4
30.0
23.3
"; -
24.0
24.6
25.1
24.5
' S
27.0
18.5
\ ^. ;' '
21.3
21.6
25.0
25.3
22.0
23.0
24.1
= No data submitted
0 s
Insufficient
data
x =
Exper. Rng anal Normalized deviation
Sigma (R + SR) Average (grand-avg) (known) Tag
2.25
_' V" ' < '
1.53
2.10
'- - ' , \
'-*',
v \
^ ^ > -.
1.55
-, y
s '*"'' ^ " r t
, , " C * ' * -= - :
*';'' ' ,
-' ,,'V --" ''
1.76
1.15
0.47
1.00
1.10
0.97
1.60
3.06
0.23
0.46
0.46
0.40
1.05
0.58
- 0.06
0.25
" ,~
0.788
0.591
0.827
/
f
0.591
""
;-
0.689
0.394
0.177
0.394
0.413
0.374
0.630
,,
1.345
0.079
0.177
0.158
0.158
0.413
-t
0.197
0.020
0.098
26.10
-. ' *' "
"ป ,
19.33
J. s , , s . ; '*-.
26.03
' * ' -, V '
* ' ^
28.07
'^ ' ~~ *
K-. " * ' ' ''/- -
"" \ "" ' - -> \ ^ " ^ \ '
r.-- ./-,/
;-, v I --; ,, -;
30.63
28.67
23.83
\ ' ;S ," "
23.00
24.23
24.03
22.90
23.67
18.37
20.80
21.87
25.07
24.30
21.67
23.07
24.33
TAG SYMBOLS
Determined ^to
bean
outlier
0.99
\? '' *-'""",
-2.92
P/95
> ^
, ' - '' ซ
2.12
>
%*" I " *" "
3.60
2.47
; - - -,-
-0.32
-./ '-;>'
-0.80
-0.09
-0.21
-0.86
-0.42
-3.48
-2.07
-1.46
0.39
-0.05
-1.57
-0.76
-0.03
IT = Above
H 3 Below
0.64
>-'", ,-x" \-
-3.27 Ji
', - W-;v/*- -
0.60
-"'",''" ; * -
:,./ /,-- >y\
" "' '
/-;-_" V --' *V
:, <>', '
1.77
s-y, -v'
"i .- \ ' ' ' "" % ~~'..
- s -''(^ -
.x< '*>":>!'''
>;';t "\"V/''
>;-:; i; >;ป"'-,
--/- -:;- -- >-'
3.25 tl
2.12
. ; --' '" ;-->'
-0.67
/"- 'ป'>'. ' ป' "
-1.15
-0.44
-0.56
-1.21
;\' ,-\"'- *'-
-0.77
-3.83 U
^ -' 'i'- ' !^'
-2.42
-1.81
- '\ -
0.04
-0.40
,.ป
-1.92
-1.12
-0.38
control limit
control limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
Uranium (Natural)
Lab Res. 1 Res. 2
PT
PV
PW
'pjji;
Q
QO
QJ
QK
QL
QP
QQ
QT
QU
QW
QX
QY
QZ
RC
RD
RE
RF
RG
Rj
L.1X&
':RL:-
RM
RP
RR
RV
RZ
S
sc
SD
SF
SI
SL
SM
SO
SR
ss
ST
SW
sx
sz
T
=
0 =
,:. '-iQiSi.^
15.9
27.4
-' 'ฃ-.'';
22.9
23.0
SVซ I
, :->H /
25.7 ^
21.2
\ ^ ,.\..X
17.2
25.8
20.3
25.9
24.8
^
26.5
26.9
24.4
25.3
23.2
22.8
22.8
26.3
27.1
24.3
26.6
33.0
26.0
21.8
22.8
24.0
25.4
26.0
20.9
27.3
^.:iiL6'"H
16.8
34.6
' ; ฐ-y. \ ~; ; --
20.5
y\\ ' , ..;;,-' '*
23.6
-^T^TT;
Tv v' *>4K\ /!;;,' -vVsSi
25.2
18.0 _
17.0
26.1
22.1
24.9
24.5
\ ; C
-
25.9
-> .
l-
21.5
25.5
26.4
23.6
23.9
23.2
26.4
24.5
24.1
24.4
30.0
26.2
23.7
23.0
23.9
24.9
25.1
21.6
28.9
Res. 3
. 9;8
14.7
24.2
A?P-\-
18.5
23.5
C -..'" \^ "
25.4
20.2
15.1
26.4
20.0
24.7
25.0
' y.
>
25.6
\
T
X
26.7
26.8
26.1
24.7
21.9
23.5
26.2
27.2
24.0
25.7
34.0
27.6
21.7
21.5
25.0
25.5
28.1
22.3
26.4
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.95
1.05
5.33
X4-. ' ,-j ' -,
2.20
- r "s-"-'."
0.32
/; - -xv ;-'*' '
0.25
1.64
1.16
0.30
1.14
0.64
0.25
0.46
3.06
1.20
0.57
0.78
1.00
0.35
0.10
1.53
0.15
1.11
2.08
0.87
1.13
0.81
0.61
0.32
1.54
0.70
1.27
Rnganal
(R + SR) Average
0.354
0.413
2.996
V" s "" "
0.866
0.118
,'\-- . :,
0.098
0.630
0.413
0.118
0.413
0.236
0.098
0.177
1.120
0.473
0.217
0.295
0.394
0.138
0.039
0.532
0.059
0.433
0.788
0.315
0.394
0.295
0.217
0.118
0.591
0.276
0.492
\10;53 -
15.80
28.73
vv-:' ^"VVV
20.63
23.31
\"-* :s"VV;^'>
25.43
%_\^' w.'soj _
16.43
26.10
20.80
25.17
24.77
-'
\
26.00
A
25.03
25.57
25.93
23.83
22.87
23.17
26.30
26.27
24.13
25.57
32.33
26.60
22.40
.' :- - '.':'.
22.43
24.30
25.27
26.40
21.60
27.53
TAG SYMBOLS
Determined
to be an
outlier
31 / 34 1
Normalized deviation
(grand-avg) (known) Tag
!-'4-8iOQ^-':
-4.96
2.51
:;&ฃ ;;*ซ- V%"
-2.17
-;r , - - ' ' >
-0.59
^V\"- -Kj-^ "--issV "
0.60
-2.65
-4.59
0.99
-2.07
0.45
0.22
x^ AX
\
0.93
X ' X* ^
it* -
0.37
0.68
0.89
-0.32
-0.88
-0.71
1.10
1.08
-0.15
0.68
4.59
1.28
-1.15
;V: '":'.;' v^V
-1.13
-0.05
0.51
1.16
-1.61
1.81
ft = Above
li = Below
-8i35 x
-5.31 U
2.16
r/'-- :. ซ
-2.52
,' J* , .
-0.94
- ^ , , ซ -
0.25
, AS .. ^U' - - -
-3.00
i! v "* vs
-4.95 li
0.64
-2.42
0.10
-0.13
"
0.58
x
0.02
0.33
0.54
-0.67
-1.23
-1.06
0.75
0.73
-0.50
0.33
4.23 ft
0.92
-1.50
/"' ป.
-1.48
-0.40
0.15
0.81
-1.96
1.46
control limit
control limit
-------
32/34
EMSL-LV Performance Evaluation: Blind-A,
19-Apr-1994
Uranium (Natural)
Lab
TA
TD
TE
TG
TH
TI
TL
TN
TQ
TS
TU
-TY' >
U
UA
UE
UG
UN
UP
UQ
uw
^UY;;V
VA ' '' -
vc
VG
VI
VM - -
vo
VT : '
w
WA
X
Z
Res. 1
34.3
19.0
26.8
13.8
24.0
30.5
28.7
23.2
27.6
i" '-*
23.6
24.3
23.6
24.6
20.4
,. ,
>
27.1
26.3
24.8
19.7
23.6
Res. 2
36.2
21.2
24.9
12.5
24.1
28.1
- > '
23.9
24.1
27.8
- -' -
26.3
; v t
24.2
36.8
20.9
'' - - ' ' -X<,
25.6
' , - .... -
27.6
25.7
26.9
23.0
24.1
Res. 3
31.2
12.4
25.8
14.3
23.8
28.6
-.
28.8
23.1
28.1
-\
30.1
25.2
>,
32.8
22.0
, ,~ ;
19.1
"-- ' ,
26.3
25.9
26.0
23.3
24.3
Data
Average
9.80
10.53
13.33
13.53
15.80
16.43
Tag
x
x
U
U
H
U
Lab
FJ
PT
HU
TH
PV
QX
Exper.
Sigma
2.52
4.58
0.95
* '
0.93
0.15
1.27
2.80
0.55
0.25
3.27
\ ,
0.55
6.77
1.90
3.44
' , *
./
0.66
0.31
4
1.05
2.00
0.36
Rng anal
(R + SR)
0.984
2.395
0.374
0.354
0.059
0.473
0.965
0.197
0.098
1.533
0.197
4.046
0.728
1.533
.' ' ; '
0.256
0.118
0.413
0.709
0.138
Average
33.90
17.53
25.83
13.53
23.97
29.07
27.13
23.47
27.83
* ,-
26.67
24.57
31.07
22.50
>,\; '-X
21.70
-..;'
J
27.00
25.97
25.90
22.00
24.00
Normalized
(grand-avg)
5.49
-3.96
0.83
-6.27
-0.24
2.70
1.58
-0.53
1.99
.>- , ,>->*'. fv -,-
1.31
0.10
3.85
-1.09
'-,- -,V ' ' " 'x '
-1.55
';,-"-',
1.51
0.91
0.87
-1.38
-0.23
deviation
(known)
5.14
-4.31
0.48
* ' s-'
-6.62
-0.60
2.35
"'.'
1.23
-0.89
1.64
%0 '>' ~~"r '\
0.96
-'\ --
-0^25
' - * * * \ '
3.50
-1.44
-, '/, 'v - ;
-1.91
v,v-;;"
' - ^ -,v ' - ,
1.15
0.56
' '' . ' "'
0.52
-1.73
-0.58
Tag
ft
U
*
Ji
' ป,
, -
*'
ft
'-:'V
, .'
-'
; *\
*
, ,'ป ,
; ฃ
' ."ป
sorted by Laboratory Average
Average
3 No data submitted
0 s Insufficient data
x
17.53
18.37
18.97
19.33
19.53
19.80
Tag
U
U
U
U
U
Lab
TD
OS
JS
KT
FN
QU
Average Tag
TAG SYMBOLS
= Determined to be an outlier
20.20
20.27
20.63
20.63
20.63
20.80
ft 3 Above control
U- s Below control
Lab
DE
BN
Q
IE
AL
QZ
limit
limit
-------
EMSL-LV Performance Evaluation: Blind-A, 19- Apr- 1994
Uranium (Natural)
33
/34
Data sorted by Laboratory Average
Average Tag
20.80
21.23
21.27
21.53
21.60
21.67
21.70
21.87
22.00
22.33
22.33
22.40
22.43
22.47
22.47
22.50
22.60
22.87
22.90
23.00
23.00
23.07
23.17
23.17
23.33
23.37
23.47
23.67
23.67
23.70
23.73
23.80
23.83
23.83
23.83
% responding labs
in -
IU" -----------
i
-6 -4
Lab
OY
BO
ER
BC
SZ
PM
UW
P
X
CJ
AW
SO
ss
BK
BG
UP
E
RZ
NT
NJ
DB
PP
S
HK
BM
QJ
TS
OF
BA
JY
CK
EL
RV
NH
AA
Average Tag
23.97
24.00
24.03
24.03
24.07
24.07
24.10
24.13
24.23
24.30
24.30
24.33
24.50
24.57
24.60
24.70
24.77
24.80
24.83
24.83
25.03
25.07
25.07
25.13
25.17
25.27
25.43
25.43
25.43
25.57
25.57
25.60
25.70
25.77
25.83
Frequency distribution
m _
-2 0
Lab
TI
Z
NO
FE
DO
AF
CM
SF
NK
ST
PC
PQ
CX
UE
CG
JE
RD
J
EB
DT
RM
PB
CE
CA
RC
SW
QQ
D
C
RP
SI
HP
AP
AJ
TE
Average
25.83
25.90
25.93
25.97
26.00
26.03
26.10
26.10
26.17
26.27
26.30
26.40
26.60
26.67
27.00
27.00
27.13
27.53
27.83
28.07
28.27
28.33
28.67
28.73
29.07
29.40
29.53
30.20
30.63
30.67
31.07
31.43
31.60
32.27
32.33
33.90
Tag
ft
ft
ft
ft
ft
ft
ft
ft
+2 +4
Lab
BH
W
RR
VO
RG
L
QY
K
AZ
SD
SC
sx
SM
u
VG
FZ
TQ
T
TU
LT
CS
GQ
NA
PW
TL
AK
A
HL
N
I
UN
ID
DZ
AE
SL
TA
+6
Normalized deviation of the mean from the known value
s No data submitted
0 = Insufficient data
TAG SYMBOLS
ft =
x s Determined to be an outlier II =
Above control
Below control
limit
limit
-------
34/34 EMSL-LV Performance Evaluation: Blind-A, 19-Apr-1994
Uranium (Natural)
% responding labs Frequency distribution
-6 -4 -2 0 +2 +4 +6
Normalized deviation of the mean from the grand average
------- |