Gross Alpha-Beta in Water Intercomparison Study: a Statistical Evaluation of the January 31, 1992 Data


PA
         United States
         Environmental Protection
         Agency
             Environmental Monitoring
             Systems Laboratory
             P.O. Box 93478
             Las Vegas NV 89193-3478
EPA 600/R-92/054
March 1992
         Research and Development
Gross Alpha-Beta in Water
Jntercomparison Study

A Statistical Evaluation of the
January 31,1992 Data
                                         5161GR92QAD.COV-1

-------
         Gross Alpha-Beta in Water
          Intercomparison Study
            January 31,  1992
      Environmental Protection Agency
Environmental Monitoring Systems Laboratory
            Las Vegas, Nevada

-------
            UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
                        OFFICE OF RESEARCH AND DEVELOPMENT
               ENVIRONMENTAL MONITORING SYSTEMS LABORATORY-LAS VEGAS
                                  P.O. BOX 93478
                            LAS VEGAS. NEVADA 89193-3478
                             (702/798-2100 - FTS 545-2100)
Dear Participant,

   Enclosed are the results of the Nuclear Radiation Assessment Division (EMSL-
LV) Intercomparison Study for Gross Alpha-Beta in Water; January 31, 1992.

   This report introduces a new format that we hope is easier to read and interpret.
Although we have tested the software that produces this report carefully, and
compared the results with the previous  format, there is a possibility of error. We
encourage you to examine the data and inform us of any apparent discrepancies.

   We especially 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,  it becomes unrealistic for us to receive results by mail or FAX.

   If you have any questions or comments, please send a message via the data-entry
system or contact Frank Novielli at 702/798-2159 (FTS 545-2159) or Patricia Honsa
at 702/798-2141 (FTS 545-2141).
                                          Sincerely,
                                           -rank Novielli
                                          Senior Chemist
                                          Radioanalysis Branch
Enclosure

-------
                     NOTICE

This material has been funded wholly (or in part)
by the U.S. Environmental Protection Agency.  It
has been subject the Agency's review, and it has
been approved for publication as an EPA document.

-------
EMSL-LV Inter-comparison Study: Gross Alpha-Beta in Water, 31-Jan-1992 1/17

The following pages consist of separate sections for each of the nuclides in this study with four
ports per section. After the first, each part is separated from the next hy a new page or a thick
horizontal bar. The first page of each section is a statistical summary for the nuclide and starts
with a statement of the known value, the control limits, and the warning limits.

The warning limits are placed at two normalized standard deviations above and below the
known value and the control limits are three normalized standard deviations above and below
the known value. If you keep control charts, these values will be useful for anticipating problems
with the accuracy of your analytical methods.
The coin shaped pie chart at the top of the summary page shows the fate of all the samples
sent out in number and percentage terms. The pie chart starts at the top and rotates clockwise.
The first sector represents those participants who submitted analytical results within both the
warning and control limits. The next sector represents those who are in the warning region but
not out of control. The third sector represents those who are out of control, but have passed the
the outlier test. The fourth sector represents those who have failed the outlier test. The last
sector represents those participants who have failed to respond properly. This is the case if no
analytical results were returned, or less than three determinations were reported, or if the results
were received too late. The reeding on the edge of the coin is spaced at one percent intervals, and
the sector shading becomes darker as the data reliability decreases. Sectors with zero width are
not shown.
The table in the center shows a number of statistical quantities calculated from the submitted
data based on the mean and median values in relation to the known value, both before and after
outlier removal. The lower pie chart uses the same construction as the upper chart and shows
the distribution of properly submitted data in terms of deviation from the known value divided
into sectors representing one, two, three, and greater than three normalized standard deviations.

The second part is an alphabetical listing, in lab-code order, of submitted data and several
calculated quantities. An entry that is shaded has been rejected because of one of the reasons
listed above or failure of the outlier test. The fifth and sixth columns are a measure of laboratory
precision. The Range analysis is a normalized value that you may use to keep precision control
charts. If this value is between 2.0 and 3.0, your analytical process precision is in the warning
zone; if it exceeds 3.0 it is out of control. The eighth and ninth columns are the differences from
the mean of all non-outliers and from the known value, respectively. A tag symbol may appear in
the last column. Each page with tags has a symbol definition summary at the bottom. If there is
no tag symbol, the data is within the control limits, but it may be in the warning zone.

The third part is a three-column listing of result average, tag symbol, and lab-code in average
order excluding those labs not responding properly. In this order, all outliers and out-of-control
results appear at the top or bottom of the list.
The last part is two bar chart displays showing frequency distributions of responding
participants. The first chart places the known value at the center and a bar at each 0.2 unit of
expected precision. The second chart places the mean of the reported measurements at the center
and a bar at each 0.2 unit of standard deviation. In both cases, a bar includes those results within
0.1 unit up to the maximum of six. Any results more than six units from the center value are
shown cumulatively by a shaded bar one past the sixth unit. If the central tendency of the known
value distribution falls away from the center, an error in accuracy is indicated. If the distribution
is broad, poor precision is indicated. The mean value distribution is similar but uses the average
and standard deviation of reported results as its basis.

-------
        EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 31-Jan-1992    2/17
Gross Alpha                         Statistical Summary                      219 Participants
The known value of this nuclide is 30.0 pCi/1 with an expected precision of 8.0; the control limits
are 16.1 to 43.9, and the warning levels are 20.7 to 39.3
38(17.4 %) Failed to respond ».
2(O.9 %) Outliers •
29(13.2 %) Out of control '
       but not an outlier


         Statistic
                116(53.O %) Within all limits
Respondents
-• 34(15.5 %) 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
     24.42
      8.57
     73.47
     35.10
    -18.60
     -0.65
     24.33
    -18.89
     -0.66
    Grand Avg 24.04
                 7.79
                60.70
                32.42
                -19.88
                 -0.77
                24.33
                -18.89
                 -0.73
31(17.1 %) More than 3 norm. S.D. .
34(18.8 %) Between 2 and 3 norm. S.D.'
             63(34.8 %) Within 1 norm. S.D.
                           of known value
     53(29.3 %) Between 1 and 2 norm. S.D.

-------
1
3/17 EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 31-Jan-1992
Gross Alpha

Lab
A
AB
AE
AF
AI
AJ
AK
AL
AN
AO
AP
AR
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CO
CP
CQ
CS
cx
D
DB
DD
DE
DG

Res. 1
28.0
36.0
19.0
30.0
24.0
8.0
29.0
28.0

22.0
23.0
32.0
19.0
20.0
v"V,;
35.0
21.0
27.0
34.0
17.0
22.0
19.0
29.0
19.0
27.0
29.0
17.0
15.0
/•;/", ..,"•
28.0
21.0
27.0
34.0
21.0
29.0
18.0
32.0
26.0
33.0
~r * ~~'M&b>"
22.0
30.0
13.0
25.0
20.0

Res. 2
32.0
35.0
25.0
34.0
27.0
8.0
30.0
29.0

19.0
25.0
33.0
18.0
19.0

32.0
22.0
27.0
34.0
16.0
21.0
21.0
30.0
24.0
27.0
30.0
17.0
20.0

29.0
29.0
27.0
27.0
25.0
28.0
16.0
32.0
23.0
32.0
53,0
23.0
36.0
14.0
25.0
17.0

Res. 3
30.0
38.0
22.0
33.0
26.0
8.0
29.0
28.0

23.0
28.0
29.0
19.0
19.0

30.0
22.0
30.0
32.0
17.0
23.0
32.0
32.0
24.0
29.0
26.0
20.0
18.0
' ",'
28.0
21.0
27.0
30.0
29.0
25.0
13.0
32.0
22.0
35.0
64.0
23.0
33.0
12.0
26.0
17.0
• s No data submitted
0 =
Insufficient
data
x =
Exper.
Sigma
2.00
1.53
3.00
2.08
1.53
0.00
0.58
0.58
, ' - " "
2.08
2.52
2.08
0.58
0.58

2.52
0.58
1.73
1.15
0.58
1.00
7.00
1.53
2.89
1.15
2.08
1.73
2.52

0.58
4.62
0.00
3.51
4.00
2.08
2.52
0.00
2.08
1.53
7.77
0.58
3.00
1.00
0.58
1.73
Rng anal
(R + SR)
0.295
0.222
0.443
0.295
0.222
0.000
0.074
0.074

0.295
0.369
0.295
0.074
0.074

0.369
0.074
0.222
0.148
0.074
0.148
0.960
0.222
0.369
0.148
0.295
0.222
0.369

0.074
0.591
0.000
0.517
0.591
0.295
0.369
0.000
0.295
0.222
1.205
0.074
0.443
0.148
0.074
0.222
Normalized deviation
Average
30.00
36.33
22.00
32.33
25.67
8.00
29.33
28.33

21.33
25.33
31.33
18.67
19.33

32.33
21.67
28.00
33.33
16.67
22.00
24.00
30.33
22.33
27.67
28.33
18.00
17.67

28.33
23.67
27.00
30.33
25.00
27.33
15.67
32.00
23.67
33.33
55.33
22.67
33.00
13.00
25.33
18.00
TAG SYMBOLS
Determined
to be an outlier
(grand-avg)
1.29
2.66
-0.44
1.80
0.35
-3.47
1.15
0.93

-0.59
0.28
1.58
-1.16
-1.02
-. -f, *
1.80
-0.51
0.86
2.01
-1.60
-0.44
-0.01
1.36
-0.37
0.79
0.93
-1.31
-1.38

0.93
-0.08
0.64
1.36
0.21
0.71
-1.81
1.72
-0.08
2.01
6.78
-0.30
1.94
-2.39
0.28
-1.31
(known)
0.00
1.37
-1.73
0.51
-0.94
-4.76
-0.14
-0.36

-1.88
-1.01
0.29
-2.45
-2.31

0.51
-1.80
-0.43
0.72
-2.89
-1.73
-1.30
0.07
-1.66
-0.51
-0.36
-2.60
-2.67

-0.36
-1.37
-0.65
0.07
-1.08
-0.58
-3.10
0.43
-1.37
0.72
5.48
-1.59
0.65
-3.68
-1.01
-2.60
ft = Above control
II = Below control
Tag





II


- V;





*













•






II



X


II


limit
limit

-------
1
EMSL-LV Intercomparison Study: Gross Alpha-Beta in Water, 31-Jan-1992 4/17
Gross Alpha
Lnb
DH
DO
DP
DB
DS
DT
DX
DZ
E
EA
EB
EH
EK
EL
EN
EO
ER
"EB"
EV
''EW
FE
FF
FJ
FL
FN
FP
'•Flfi-
FW
iff, f,t s-y/
' JEZ- /

"!GE'
GJ
GQ
GT
'''GV--
-' GY*
;'GZ''
HH
HI
HK
HL
HN
HP
rBtu;
HY
Res. 1
20.0
13.0
34.0
» -'"- '," ' " ,'
28.0
21.0
19.0
22.0
26.0
36.0
31.0
31.0
53.0
13.0
26.0
31.0
30.0
".'•,*'•?' :'.'*•>' ''"'
27.0
„:.''„ ,'.'* '"',
41.0
24.0
9.0
5.0
23.0
12.0
,"" 'j,/v ff "j $ S, ,
' '' ' •• ' , ^ '' '' "

t f t '' ' •••'
18.0
22.0
29.0
r)£i ':^?^'!'->, '•"'.-
p|ftj^;4^:^
fv" , -I'vE '''""' " '•";',
18.0
8.0
15.0
26.0
31.0
27.0
" " ' ' "*'/'' "' * '", "
29.0
21.0
19.0
36.0

23.0
25.0
19.0
22.0
33.0
38.0
33.0
28.0
41.0
12.0
33.0
31.0
30.0
'': ;/ '':'
26.0
,-- - ?
41.0
24.0
8.0
4.0
22.0
13.0
'"'••••'f/" '•
15.0
"' , ''"£',' '*
'-"',' :'f'"

':'•','£'•,
21.0
20.0
30.0
, ' '' ^ y f
•S'/S \^ff
'/if}'"'", V ' ,'
17.0
8.0
15.0
26.0
25.0
27.0
rf s
30.0
• = No data submitted
0 =
Insufficient
data
x =
Exper.
Sigma
0.58
3.79
1.15

2.52
2.00
0.00
0.00
4.73
1.15
1.15
2.52
10.54
1.53
3.79
0.58
0.00

1.00

2.31
1.15
0.58
0.58
0.58
7.23
,'"", '/ ;~ ', ;
3.06
^' j- .- • f * , . '


-, '
1.73
2.52
2.08
{
," ' ', '

0.58
0.00
0.00
0.00
3.21
0.00

0.58
Rng anal Normalized deviation
(R + SR) Average
0.074
0.517
0.148

0.369
0.295
0.000
0.000
0.665
0.148
0.148
0.369
2.049
0.222
0.517
0.074
0.000

0.148

0.295
0.148
0.074
0.074
0.074
0.960
'" 'f
0.443
H „*
^ 5


0.222
0.369
0.295



0.074
0.000
0.000
0.000
0.443
0.000

0.074
20.33
17.33
35.33

25.67
23.00
19.00
22.00
27.67
37.33
31.67
28.33
42.00
11.67
30.33
31.33
30.00

26.00
.
42.33
23.33
8.33
4.67
22.-33
' 16-67
' ' -..'',' ";' '•','" '••
17.67
' , ' ' '{*','•
-,- '„',„• '-' , '•',• ' ' > '- '

-•,? ', ' ' ' ';, „ : ; . -
19.00
22.33
30.67



17.33
8.00
15.00
26.00
28.67
27.00
•'.''•";"'•" "-, "' '
29.33
TAG SYMBOLS
Determined
to be an
outlier
(grand-avg) (known) Tag
-0.80
-1.45
2.45

0.35
-0.22
-1.09
-0.44
0.79
2.88
1.65
0.93
3.89
-2.68
1.36
1.58
1.29
~ ,,''
0.43

3.96
-0.15
-3.40
-4.19
-0.37
-1.60
'/ '"' , :.' • ' '*',
-1.38
' j'-*' '" ' *'"
* '• //', --'••,,/',.
/ ' ' fr' " '* ,
f S $ ''ft.
-1.09
-0.37
1.44



-1.45
-3.47
-1.96
0.43
1.00
0.64
-• ; p '.-",'/"••'"
1.15
1T = Above
$ =z Below
-2.09
-2.74
1.15
f 9
-0.94
-1.52
-2.38
-1.73
-0.51
1.59
0.36
-0.36
2.60
-3.97 U
0.07
0.29
0.00
'"•< '..<.- • •
-0.87 _
- ' '' - • , '
2.67
-1.44
-4.69 U
-5.48 U
-1.66
-2.89
^•''\,',.' •• '•••',-
-2.67
' " f ' '""' * '
, ->-OtV :, ;*'-

'--'" '-, /--;'•-"
-2.38
-1.66
0.14
' f '?*.," " •
:'' *
-,
-2.74
-4.76 II
-3.25 H
-0.87
-0.29
-0.65
,O'T, '-{'.• '.
-0.14
control limit
control limit

-------
5/17 EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 31-Jan-1992
Gross Alpha
Lab Res. 1
I
1C
ID
IE
iu
j
JE
JG
JH
JM
JN
JP
JQ
JS
K
KC
KE
KF
KT
KX
KZ
L
LA
OS
LF
LG
LL
LM
LR
LS
LT
LX
LZ
M
MA
ME
ML
MQ
MS
MV
MX
N
NA
NE
NF
25.0
/C.'e&bt.'.'
37.0
32.0

17.0
27.0
21.0
24.0
11.0
22.0
21.0
35.0
30.0
18.0
11.0
19.0
30.0
• . <. «• -
25.0
26.0
27.0
V - f '
39.0
25.0
25.0

14.0
' j ^
23.0
23.0
, - - / •;- <.*; ;
30.0
33.0
^ ~>"^ "^ *"'^!f
25.0
30.0
21.0
12.0
25.0
35.0 .
26.0
4.0
Res. 2 Res. 3
23.0
•^"•60.6"* v.
24.0
31.0

18.0
30.0
19.0
24.0
12.0
25.0
20.0
31.0
28.0
17.0
10.0
22.0

30.0

24.0
25.0
26.0

41.0
28.0
26.0
' -
14.0
;^, - - ' ,-"•"
18.0
23.0
•••.'' •' >••• •*/',.*
31.0
" r'*'" v \ ?'""'•; "'°
34.0
-'"-:-;' * **'•*•-%$'£. :
23.0
37.0
22.0
13.0
24.0
35.0
26.0
4.0
23.0
7LO
24.0
31.0

16.0
23.0
22.0
28.0
10.0
23.0
22.0
35.0
2.8.0
20.0
11.0
19.0
30.0
+
24.0
25.0
26.0

41.0
22.0
27.0

12.0

22.0
23.0

30.0
-»- - --,,-
35.0

27.0
44.0
21.0
15.0
24.0
35.0
24.0
3.0
• = No data submitted
0 a
Insufficient
data
X =Z
Exper.
Sigma
1.15
,-'-,7.77, * •
7.51
0.58

1.00
3.51
1.53
2.31
1.00
1.53
1.00
2.31
1.15
1.53
0.58
1.73
0.00

0.58
0.58
0.58
^ , , -
1.15
3.00
1.00

1.15
2.65
0.00

0.58
1.00

2.00
7.00
0.58
1.53
0.58
0.00
1.15
0.58
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.148
1.205
0.960
0.074

0.148
0.517
0.222
0.295
0.148
0.222
0.148
0.295
0.148
0.222
0.074
0.222
0.000

0.074
0.074
0.074

0.148
0.443
0.148

0.148
0.369
0.000

0.074
0.148

0.295
1.064
0.074
0.222
0.074
0.000
0.148
0.074
23.67
62.33
28.33
31.33

17.00
26.67
20.67
25.33
11.00
23.33
21.00
33.67
28.67
18.33
10.67
20.00
30.00

24.33
25.33
26.33

40.33
25.00
26.00

13.33
21.00
23.00

30.33
34.00

25.00
37.00
21.33
13.33
24.33
35.00
25.33
3.67
TAG SYMBOLS
Determined
to be an
outlier
-0.08
8.29
0.93
1.58

-1.52
0.57
-0.73
0.28
-2.82
-0.15
-0.66
2.09
1.00
-1.23
-2.89
-0.87
1.29

0.06
0.28
0.50

3.53
0^21
0.43

-2.32
-0.66
-0.22
,
1.36
2.16

0.21
2.81
-0.59
-2.32
0.06
2.37
0.28
-4.41
IT = Above
U = Below
-1.37
:,7.00-'"^";;
-0.36
0.29
: " •
-2.81
-0.72
-2.02
-1.01
-4.11 11
-1.44
-1.95
0.79
-0.29
-2.53
-4.19 11
-2.17
0.00
: - - »
-1.23
-1.01
-0.79
•
2.24
-1.08
-0.87
*
-3.61 li
* -
-1.95
-1.52
- '' "'"»
0.07
0.87
• '
-1.08
1.52
-1.88
-3.61 11
-1.23
1.08
-1.01
-5.70 U
control limit
control limit

-------
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 31- Jan- 1992 6/17
Gross Alpha
Lab
NG
NH
NI
NJ
NK
NO
NP
NT
O
OA
OB
OE
OF
OIL
OM
OS
OT
OY
OZ
P
PA
PB
PC
PG
•*•' .
PP
PQ
PR
PV
Q
QC
9J
, Qit;'
QM

' QP
QQ
QT
QU
QW
QX
QZ
R
RB
RD
RE
• =
0 =
Res. 1
19.0
23.0
14.0
14.0
20.0
23.0
15.0
15.0
19.0
14.0
22.0
22.0
21.0
, '
',''>; ' *">/
25.0
< '
31.0
32.0
18.0
19.0
25.0
35.0
19.0
:2J' '- ^"''f^J'y''
4f ff f •.'/•" , ' /' ^f
31.0
26.0
16.0
36.0
25.0
25.0
'/^W^t^M
4.0

'",' ^:1',-->SA.'*i
19.0
17.0
28.0
24.0
13.0
32.0
24.0
28.0
s f
32.0
Res. 2 Res. 3
18.0
23.0
9.0
17.0
21.0
24.0
15.0
14.0
20.0
16.0
20.0
22.0
24.0
' /
/ '• v
24.0
'
32.0
32.0
18.0
17.0
25.0
35.0
19.0
t '• ''^L;L-'^ ''^:f"
'/, "$.'$': :'-!-,'
26.0
26.0
16.0
37.0
27.0
_ ^26.0 	 _
"&$f"y"^/jyjy,fsf ' 2 ''J/ttf',?Z.'
5.0

W^&i$%V/' '••&;: "?' •
	 "l8.0
14.0
27.0
25.0
12.0
33.0
23.0
27.0

35.0
19.0
25.0
11.0
17.0
20.0
25.0
16.0
16.0
20.0
15.0
23.0
24.0
28.0

^
24.0
s
32.0
33.0
17.0
17.0
25.0
37.0
18.0
''' f' ';'-•'''"
-' ',"*t '
30.0
26.0
18.0
31.0
28.0
26.0
t-/;"f|,'i
4.0
"••'* v ^ '
w*'
-------
7/17
EMSL-LV Intel-comparison
Gross Alpha
Lab Res. 1
RG
RH
"HI'-V •"
RJ
RK
RM
RN
RQ
RR
RS
RU
RV
RW
RY
RZ
S
SA
sc
SD
SF
SG
SI
SJ
SL
SM
SN ,
80
SR
ss
ST
SU
sw
sx
T
U
W
X
Y
23.0
9.0
»' %" '
26.0
11.0
25.0
27.0

34.0
15.0

57.0
31.6
25.0
31.0
28.0
11.0
25.0
50.0
20.0
20.0
32.0
••-;•-- „ ,
26.0
14.0
,; /•• -

32.0
18.0
18.0
20.0
9.0
35.0
20.0
22.0
22.0
35.0
18.0
Res. 2
28.0
	 7.0
ff- ^ is **•' ' ''
31.0
10.0
22.0
30.0
-•" ""' '•,-'•" \
32.0
16.0
s '' ' ' ;
40,0
33.0
26.0
31.0
29.0
19.0
27.0
42.0
24.0
21.0
31.0

25.0
15.0
V ' "' '*- ' * ,

30.0
20.0
18.0
16.0
14.0
33.0
19.0
24.0
21.0
35.0
17.0
Res. 3
26.0

;'V ',",;
7.0
J:
25.0
12.0
25.0
28.0
:, ,
•;" ••-
33.0
15.0


39.0
31.0
21.0
31.0
29.0
15.0
27.0
49.0
23.0
20.0
31.0


21.0
15.0
'-,-', '



33.0
21.0
19.0
23.0
13.0
30.0
22.0
20.0
20.0
37.0
21.0
Study: Gross Alpha-Beta in Water, 31-Jan-1992
Exper.
Sigma
2.52
1.15
• .',
3.21
1.00
1.73
1.53
-' --;_
1.00
0.58

10.12
1.15
2.65
0.00
0.58
4.00
1.15
4.36
2.08
0.58
0.58
.. _ -;
2.65
0.58


1.53
1.53
0.58
3.51
2.65
2.52
1.53
2.00
1.00
1.15
2.08
Rng anal
(R + SR)
0.369
0.148
A ' ,
0.443
0.148
0.222
0.222

0.148
0.074
(
1.627
0.148
0.369
0.000
0.074
0.591
0.148
0.591
0.295
0.074
0.074

0.369
0.074


0.222
0.222
0.074
0.517
0.369
0.369
0.222
0.295
0.148
0.148
0.295
Average
25.67
7.67


27.33
11.00
24.00
28.33


33.00
15.33


45.33
31.67
24.00
31.00
28.67
15.00
26.33
47.00
22.33
20.33
31.33


24.00
14.67




31.67
19.67
18.33
19.67
12.00
32.67
20.33
22.00
21.00
35.67
18.67
Normalized
(grand-avg)
0.35
-3.54

0.71
-2.82
-0.01
0.93

1.94
-1.88

4.61
1.65
-0!01
1.51
1.00
-1.96
0.50
4.97
-0.37
-0.80
1.58

-0.01
-2.03


1.65
-0.95
-1.23
-0.95
-2.61
1.87
-0.80
-0.44
-0.66
2.52
-1.16
deviation
(known)
-0.94
-4.84
f '
-0.58
-4.11
-1.30
-0.36
" - ,' --,'
0.65
-3.18

3.32
0.36
-1.30
0.22
-0.29
-3.25
-0.79
3.68
-1.66
-2.09
0.29

-1.30
-3.32


0.36
-2.24
-2.53
-2.24
-3.90
0.58
-2.09
-1.73
-1.95
1.23
-2.45
Tag
•'"'
||
'. ."-

II


- * -

II
, •
F




II

IT



* '

H
* -
* -




II






Data sorted by Laboratory Average
Average
3.67
4.33
4.67




Tag
U
II
II
Lab
NF
QM
FL
Average



• = No data submitted
0 = Insufficient data
x =
7.67
8.00
8.00
Tag
II
U
II
Lab
RH
ffl
AJ
Average Tag



TAG SYMBOLS
Determined to be an outlier
8.33
10.67
11.00
II
II
II
It s Above control
II = Below control
Lab
FJ
KC
RK
limit
limit
-------
EMSL-LV Intel-comparison Study:
Gross Alpha

Average Tag
11.00 U
11.33 U
11.67 U
12.00 H
12.33 U
13.00 li
13.33 U
13.33 li
14.67 U
15.00 U
15.00 U
15.00 U.
15.00 11
15.00 It
15.33 U
15.33 U
15.67 11
16.00 li
16.67
16.67
16.67
17.00
17.33
17.33
17.67
17.67
17.67
17.67
18.00
18.00
18.00
18.33
18.33
18.67
18.67
18.67
18.67
19.00
19.00
19.33
19.67
19.67
19.67
20.00
• = No data submitted
0 s Insufficient data

Data sorted by
Lab
JM
NI
EL
SW
QX
DD
MX
LR
SM
SA
QT
OA
NT
HK
RS
NP
CO
NJ
PV
FP
BG
J
HH
DO
PA
P
FW
BS
QQ
DG
BO
ST
K
Y
PG
NG
AU
GJ
DX
AW
su
ss
o
KE
Average
20.33
20.33
20.33
20.33
20.67
21.00
21.00
21.00
21.33
21.33
21.67
21.67
22.00
22.00
22.00
22.00
22.33
22.33
22.33
22.33
22.67
22.67
23.00
23.00
23.00
23.33
23.33
23.67
23.67
23.67
23.67
24.00
24.00
24.00
24.00
24.00
24.33
24.33
24.33
24.33
25.00
25.00
25.00
25.00
TAG
Gross Alpha-Beta in Water, 31- Jan- 1992 8

Laboratory Average
Tag Lab
T
SG
NK
DH
JG
W
LT
JP
MV
AO
OB
BA
U
DZ
BH
AE
SF
GQ
FN
BL
OE
D
R
LX
DT
JN
FF
NH
I
CQ
CA
SL
RY
RM
NO
BI
OS
OF
N
KZ
PB
MQ
LG
CJ
Average Tag
25.33
25.33
25.33
25.33
25.33
25.33
25.67
25.67
25.67
25.67
26.00
26.00
26.00
26.00
26.00
26.33
26.33
26.67
26.67
26.67
27.00
27.00
27.33
27.33
27.67
27.67
28.00
28.33
28.33
28.33
28.33
28.33
28.33
28.67
28.67
28.67
29.00
29.33
29.33
30.00
30.00
30.00
30.33
30.33
SYMBOLS ft s Above control
x = Determined to be an outlier 11 s Below control
717 )


Lab
QW
NE
L
JH
DE
AP
RG
QJ
DS
AI
RB
PR
LL
HL
EV
SC
LA
QU
QC
JE
HP
CE
RJ
CK
E
BM
BB
RN
ID
EH
C
BN
AL
S
JS
HN
PQ
HY
AK
KT
ER
A
M
EN
limit
limit
-------
9/17 EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 31-Jan-1992
Gross Alpha




Data sorted by Laboratory Average
Average Tag
30.33
30.33
30.67
31.00
31.33
31.33
31.33
31.33
31.67
31.67
31.67
31.67
32.00

% Frequency


° -6 ' I

Lab Average Tag Lab
CG 32.33 QZ
BK 32.33 OZ
GT 32.33 AZ
RZ 32.33 AF
SI 32.67 SX
IE 33.00 RR
EO 33.00 DB
AR 33.33 CS
SR 33.33 BC
RW 33.67 JQ
OY 34.00 ME
EB 34.33 RE
CP 34.67 Q

Average Tag
35.00
35.33
35.67
35.67
36.33
37.00
37.33
40.33
42.00
42.33
45.33 ft
47.00 ft
55.33 x
62.33 x
Lab
NA
DP
X
PC
AB
MS
EA
LF
EK
FE
RV
SD
CX
1C
distribution of responding labs( expected prec. vs known value)
U" .
•••||||BT._-
exp. prec. "2 ,0 +2
Known
value
% Frequency distribution of responding labs(std. dev.

_ — 	
exp. prec. +4

vs mean value)


+6




° -6 ' -4
• = No data submitted
0 = Insufficient data
• •« ••••••••••••••••••llf
_••- '
std. dev. -2 0 +2 §td. dev. +4
mean
value
TAG SYMBOLS
x = Determined to be an outlier
ft = Above control
•li = Below control
«^HNJi2
+6
limit
limit
-------
        EMSL-LV Intel-comparison Study:  Gross Alpha-Beta in Water, 31-Jan-1992  10/17
Gross Beta                          Statistical Summary                      219 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, and the warning levels are 24.2 to 35.8
37(16.9 %) Failed to respond »^
7(3.2 %) Outliers *
21 (9.6 %) Out of control'
      but not an outlier


        Statistic
                134(61.2 %) Within all limits
Respondents
*-• 2O(9.1 %) 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
     31.27
     12.26
    150.21
     39.19
      4.23
      0.10
     30.67
      2.22
      0.05
    Grand Avg 29.88
                 5.42
                29.41
                18.15
                 -0.40
                 -0.02
                30.67
                 2.22
                 0.12
29(15.9 %) More than 3 norm. S.D.
19(10.4 %) Between 2 and 3 norm. S.D
            .85(46.7 %) Within 1 norm. S.D.
                           of known value
   - 49(26.9 %) Between 1 and 2 norm. S.D.
-------
11 /
17 EMSL-LV Intercomparison
Study: Gross Alpha-Beta in Water, 31-Jan-1992
Gross Beta
Lab
A
AB
AE
AF
AI
AJ
AK
AL
AN,
AO
AP
AR
AU
AW
AY
AZ
BA
BB
BC
BG
BH
BI
BK
BL
BM
BN
BO
BS
BW
C
CA
CE
CG
CJ
CK
CO
CP
CQ
CS
CX
D
DB
DD
DE
DG
Res. 1
30.0
26.0
25.0
30.0
28.0
29.0
32.0
24.0
*• ' " < "
;-:/~-',"J"&£"'> ,
24.0
30.0
28.0
32.0

25.0
33.0
35.0
19.0
26.0
30.0
33.0
30.0
29.0
31.0
25.0
33.0
32.0
• ', „ "••/ - -'-
30.0
26.0
35.0
30.0
32.0
32.0
26.0
44.0
41.0
32.0
30.0
31.0
29.0
32.0
34.0
35.0
Res. 2 Res. 3
30.0
25.0
24.0
32.0
32.0
30.0
34.0
23.0
\' '•??- * ,--' '','"' -*'-•
-.-I&dV-";-^
26.0
32.0
28.0
31.0

23.0
33.0
35.0
21.0
27.0
30.0
32.0
35.0
30.0
29.0
24.0
32.0
32.0
•• "•'"•
30.0
30.0
38.0
31.0
31.0
33.0
27.0
43.0
39.0
31.0
31.0
32.0
28.0
32.0
34.0
44.0
30.0
25.0
23.0
32.0
31.0
30.0
33.0
21.0
.. ' ' i '
j, 4.0,,-,
27.0
31.0
27.0
31.0

26.0
33.0
36.0
25.0
29.0
29.0
32.0
32.0
35.0
32.0
26.0
32.0
34.0

30.0
27.0
34.0
30.0
32.0
34.0
27.0
43.0
39.0
32.0
35.0
31.0
31.0
31.0
35.0
40.0
• 3 No data submitted
0 a
Insufficient
data
x =
Exper.
Sigma
0.00
0.58
1.00
1.15
2.08
0.58
1.00
1.53
', 1'S'.. ~- '•'•-
: 1.00
1.53
1.00
0.58
0.58

1.53
0.00
0.58
3.06
1.53
0.58
0.58
2.52
3.21
1.53
1.00
0.58
1.15

0.00
2.08
2.08
0.58
0.58
1.00
0.58
0.58
1.15
0.58
2.65
0.58
1.53
0.58
0.58
4.51
Rnganal
(R + SR) Average
0.000
0.118
0.236
0.236
0.473
0.118
0.236
0.354

0.236
0.354
0.236
0.118
0.118

0.354
0.000
0.118
0.709
0.354
0.118
0.118
0.591
0.709
0.354
0.236
0.118
0.236

0.000
0.473
0.473
0.118
0.118
0.236
0.118
0.118
0.236
0.118
0.591
0.118
0.354
0.118
0.118
1.120
30.00
25.33
24.00
31.33
30.33
29.67
33.00
22.67
• -' f\ -",-. , ",, -•
3.00
25.67
31.00
27.67
31.33

24.67
33.00
35.33
21.67
27.33
29.67
32.33
32.33
31.33
30.67
25.00
32.33
32.67

30.00
27.67
35.67
30.33
31.67
33.00
26.67
43.33
39.67
31.67
32.00
31.33
29.33
31.67
34.33
39.67
TAG SYMBOLS
Determined
to be an
outlier
Normalized deviation
(grand-avg) (known) Tag
0.04
-1.58
-2.04
0.50
0.16
-0.07
1.08
-2.50
I - J ' ;, ''' .,
-9.31
-1.46
0.39
-0.77
0.50

-1.81
1.08
1.89
-2.85
-0.88
-0.07
0.85
0.85
0.50
0.27
-1.69
0.85
0.97

0.04
-0.77
2.00
0.16
0.62
1.08
-1.11
4.66
3.39
0.62
0.73
0.50
-0.19
0.62
1.54
3.39
ft s Above
U = Below
0.00
-1.62
-2.08
0.46
0.12
-0.12
1.04
-2.54
•- - '•' ' - ; i-} •„ ' .
-9.35 i x
-1.50
0.35
-0.81
0.46
• '
-1.85
1.04
1.85
-2.89
-0.92
-0.12
0.81
0.81
0.46
0.23
-1.73
0.81
0.92
•
0.00
-0.81
1.96
0.12
0.58
1.04
-1.15
4.62 ft
3.35 ft
0.58
0.69
0.46
-0.23
0.58
1.50
3.35 ft
control limit
control limit
-------

EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 31- Jan- 1992 12/17
Gross Beta
Lab
DH
DM
DO
DP
DR
DS
DT
DX
DZ
E
EA
EB
EH
EK
EL
EN
EO
:-'"jgR?
%gfc
EV
EW
FE
FF
FJ
FL
FN
FP
"-muu" i"'
i/P\J- '
' r} "'/ •&? ",
ina'iiifl •
/ wr*3a /
•xJF' TV"'
, IKMry ft
GE
Res. 1
30.0
21.0
33.0
34.0
32.0
29.0
30.0
32.0
31.0
32.0
32.0
32.0
30.0
53.0
31.0
23.0
34.0
''••7;., '•"'',:'• ^j'Jp)';' -;
i%!f|^'S5
28.0
29.0
26.0
31.0
42.0
26.0
32.0
36.0
f""f Sf' *''' -VY*" " / '
''&<%',?% "'$, $;/'** "'


^w^^'y^y^fffip/^?^
'^•y^-'/^rf^'
30.0
l^^f^Mof^
GQ
GT
'j^m'&'
'',£$/";
f'tr^Ff'
y „„, "<,'
•' GZV
HH
HI
HK
HL
"HN'
HP
' tfjntV'
' HlJ
,;HY,;
• =
0 =
27.0
14.0
' ,' '•> '',";{/">••"£;" "W
^i'^^i^y
'"'' ;* ",™% '$ *&fis£'f.
'?-> /'-''' '"'%%''*$$%'
>->/'- '•'^•"^*i^.
30.0
25.0
31.0
40.0
';'-'- ;''':"'* -i';' -
32.0
"'"'", ' ~, <'' ' r~'f; **'''/* ' '
?'..', '?'.'"''' '*''"'

Res. 2
31.0
20.0
34.0
34.0
33.0
27.0
31.0
33.0
31.0
31.0
31.0
33.0
30.0
44.0
35.0
24.0
32.0
''-':-. "V^-'.'.'"^"^/'.
^^f^Kc^
30.0
32.0
28.0
32.0
40.0
25.0
32.0
33.0
,- ,.-" ^ ^ ^ ,' ', '
y/' s '/' */%''', ' /'f ',', ?* v


•^'' "''--'
30.0

26.0
16.0
,£$"' f'sf&T't./S^', f 'J'? ' l'$

",/'.',' 't'fyf't/f/"''* "'"<* ",
-'^V-r'Sl^''/'?- V
'''•''l?&?.t\ '":
31.0
30.0
32.0
40.0
.'/: '/:''•'- ' - ,_
32.0
',';' /, !"/?*"'? ' fr '
i, ' *'^, '''''", ' ' ' <>
":'; ,&k& .
Res. 3
31.0
21.0
35.0
37.0
32.0
28.0
31.0
32.0
31.0
32.0
31.0
35.0
31.0
44.0
31.0
30.0
34.0
"/^%%i- "
;y'.'f "•%£/''
30.0
34.0
26.0
34.0
42.0
25.0
36.0
30.0
ff* -• '/'^- j f"f
;; 1 ', "''fyf£ *,


&'','/ '''£'' &?$''J '" ''
'•' f;'t^' '
31.0
Slip^
27.0
11.0
'^"'S'^ /;-,-' "?;/'
^-M^"f
, ' ' '^'"' ' %•* "
'/' "^"'v
''' / '' -
31.0
20.0
32.0
40.0
/y.' •'"
32.0
' ' * * '','''"'

72.0
No data submitted
Insufficient
data
x =
Exper.
Sigma
0.58
0.58
1.00
1.73
0.58
1.00
0.58
0.58
0.00
0.58
0.58
1.53
0.58
5.20
2.31
3.79
1.15
"' /';*''"' '-''
• ''',"''' *" ,
1.15
2.52
1.15
1.53
1.15
0.58
2.31
3.00




'*"!"/; r / ' ' ' '
/ / ' '
0.58
^S|5;i3;''^
0.58
2.52
"'"' ff e ',
-/V't,'; .-



0.58
5.00
0.58
0.00

0.00


ao.02
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.118
0.118
0.236
0.354
0.118
0.236
0.118
0.118
0.000
0.118
0.118
0.354
0.118
1.120
0.473
0.827
0.236
"'"'•"'/,;"/<"'
" -' ", '-'-'';
0.236
0.591
0.236
0.354
0.236
0.118
0.473
0.709



\f ',,
' ' I" '' '* ,

0.118
^;-i:345-
0.118
0.591

r''fff ',



0.118
1.345
0.118
0.000

0.000


3.596
30.67
20.67
34.00
35.00
32.33
28.00
30.67
32.33
31.00
31.67
31.33
33.33
30.33
47.00
32.33
25.67
33.33 	
•"^ ;,,v" y"; -"•• c;: ':'-";/" "
'••''•' ^ -/ '- '•'•""'--
29.33
31.67
26.67
32.33
41.33
25.33
33.33
33.00
" " ':" ' ' ; J



' ftfs'S'ff'f ' ' /" '''t't' } ' ' '

30.33
•f^-/y8fc|3'3y;
26.67
13.67
_,' , '" r / //'
''^^;' ', " ;V^'-,
' ,'
";,"'',,' ' '

30.67
25.00
31.67
40.00

32.00
'" , /, ' 'f ',','",
' / ., '
; 82.331
TAG SYMBOLS
Determined
to be an
outlier
0.27
-3.19
1.43
1.77
0.85
-0.65
0.27
0.85
0.39
0.62
0.50
1.20
0.16
5.93
0.85
-1.46
1.20
"'',/"•'• 'J- ','"'- -" '
-; •'.' '"" 's '•"
-0.19
0.62
-1.11
0.85
3.97
-1.58
1.20
1.08
i '' ' ''
'' , ' ",''/'
, ''«%' '/ ' /

' *, , '''"','"£ ' f , '*'
j 'J ', f ,
0.16
?2p:2fie;/;:'
-1.11
-5.62
>Z ' ', ' , ' "•»
','•,- '•}'•••/•_'•



0.27 t
-1.69 '
0.62
3.51

0.73


18.17
IT = Above
11 = Below
0.23
-3.23 11
1.39
1.73
0.81
-0.69
0.23
0.81
0.35
0.58
0.46
1.15
0.12
5.89 tT
0.81
-1.50
1.15
'"-' ",',"/'": '." 'i\ '
/"'"' '",- • •' '
-0.23
0.58
-1.15
0.81
3.93 IT
-1.62
1.15
1.04
' "• "f'f f't" ,
'/'*'", " J' ' •


*•"' ' /''' /' ^
'/'"' ''**
0.12
20<2F!";^r
-1.15
-5.66 U
"!" ,_._. (* " '
,; \- ;>f.\' *'/'
_ '', - *

*
0.23
-1.73
0.58
3.46 tr
, ; / ' •
0.69

•
18d3 X
control limit
control limit
-------
13 /
17 EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water, 31-Jan-1992
Gross Beta

Lab
I
''-IC<;
ID
IE
IU
J
JE
JG
JH
JM
JN
JP
JQ
JS
K
KC
KE
KP
KT
' KX-,
KZ
L
LA
LE
LF
LG
LL
LM
LR
JUS
LT
LX
L35''
M
MA
ME

ML
MQ
MS
MV
MX
N
NA
NE
NF
• =
0 =

Res. 1
29.0
X:- '-efcS,^
30.0
27.0
20.0
28.0
38.0
31.0
132:6
18.0
34.0
28.0

32.0
33.0
16.0
26.0
h " -'^'-,\,
38.0
' ;V '-"';, i':t'. '•
28.0 ,
28.0
34.0

31.0
30.0
32.0

38.0
•""- ' , f ••: i"'
38.0
' "" ' - - v N f '
< ' *" •> j ' ••
29.0
~ ,', - ', „ „,, v'-
27.0

-' ' - '- '-'-; "*
23.0
25.0
31.0
42.0
32.0
35.0
25.0
: 4.0

Res. 2
33.0
/%^&Q~
3.1.0
31.0
20.0
27.0
38.0
29.0
',„ 132.0
20.0
34.0
28.0
'•:.•
31.0
" - ' !~ '
'.•-'• V '
28.0
1 *'*,'~ tY' I'v
27.0

''- - '' ' ; '-;- •
25.0
27.0
30.0
42.0
33.0
35.0
26.0
5.0

Res. 3
31.0
T'^T-esSp
22.0
25.0
20.0
28.0
34.0
30.0
/, , ••*"'"
17.0
32.0
30.0
: 1 -
35.0
29.0
17.0
25.0

38.0
* -:-~\
29.0
28.0
34.0

29.0
24.0
34.0
- -
38.0
'\V7-- '•-'-
29.0
"- °Y.' '*, * ' '''
f" ' \ " ••'' ,"•
30.0
A-V .-;>-" \^'~
27 0

''''/' '
23.0
31.0
31.0
38.0
30.0
35.0
25.0
3:0
No data submitted
Insufficient
data
X =
Exper.
Sigma
2.00
:'^';2.52- "
4.93
3.06
0.00
0.58
2.31
1.00
';^i,73'
1.53
1.15
1.15

1.73
2.00
0.58
1.00

0.00

0.58
6.58
0.00

1.15
4.16
1.00

0.00
- ' ', '-, - v
4.73

' s-
1.00
f
0.00

'
1.15
3.06
0.58
2.31
1.53
0.00
0.58
loo
Rnganal
(R + SR)
0.473
0.591
1.120
0.709
0.000
0.118
0.473
0.236
0.354
0.354
0.236
0.236

0.354
0.473
0.118
0.236

0.000

0.118
0.118
0.000

0.236
0.945
0.236

0.000

1.120


0.236

0.000


0.236
0.709
0.118
0.473
0.354
0.000
0.118
0,236
Normalized deviation
Average
31.00
65.33
27.67
27.67
20.00
27.67
36.67
30.00
131:00
18.33
33.33
28.67

33.00
31.00
16.67
26.00

38.00

28.67
28.33
34.00

30.33
28.67
33.00

38.00

32.67


29.00

27.00


23.67
27.67
30.67
40.67
31.67
35.00
25.33
4.00
TAG SYMBOLS
Determined
to be an outlier
(grand-avg) (known) Tag
0.39
•'•' -12.28 : -* T
-0.77
-0.77
-3.42
-0.77
2.35
0.04
35.03
-4.00
1.20
-0.42
, ,- ..
1.08
0.39
-4.58
-1.34
,
2.81

-0.42
-0.54
1.43

0.16
-0.42
1.08

2.81

0.97


-0.30

-1.00


-2.15
-0.77
0.27
3.74
0.62
1.77
-1.58
-8.97
ft = Above
•li = Below
0.35
12:24 -/x"'
-0.81
-0.81
-3.46 U.
-0.81
2.31
0.00
34.99 x
-4.04 1
1.15
-0.46
- - ' »
1.04
0.35
-4.62 11
-1.39
v. , • / ='-' *:< '
2.77
1 --#-,*
-0.46
-0.58
1.39
*
0.12
-0.46
1.04
•
2.77
''- _; •
0.92
», -
• '
-0.35
- • *
-1.04

_' - *
-2.19
-0.81
0.23
3.70 ft
0.58
1.73
-1.62
-9^01 x
control limit
control limit
-------

EMSL-LV Intercomparison Study : Gross Alpha-Beta in Water, 31-Jan-1992 14/17
Gross Beta
Lab
NG
NH
NI
NJ
NK
NO
NP
NT
0
OA
OB
OE
OF
OL
OM
OS
OT
OY
OZ
P
PA
PB
PC
PG
'•PP3
PQ
PR
PV
Q
QC
QJ
QK
QM
QQ
:'*&':
QU
QW
QX
QZ
R
RB
RE
Res. 1
18.0
27.0
25.0
24.0
27.0 '
29.0
30.0
28.0
34.0
37.0
37.0
37.0
27.0
< ^ - / '
*
38.0
33.0
31.0
27.0
42.0
32.0
30.0
27.0
30.0
" "fA:,?.,-'» '" ' ;<:•/.->,.• f
23.0
31.0
32.0
16.0
23.0
28.0
23.0
22.0
31.0 _
36.0
29.0
31.0
32.0
37.0
.„._,„??,•?„,,
30.0
Res. 2
21.0
27.0
23.0
25.0
27.0
29.0
29.0
29.0
32.0
38.0
34.0
37.0
28.0
-"''?"'
,
37.0
30.0
30.0
27.0
41.0
30.0
30.0
27.0
31.0
^ii*
25.0
31.0
34.0
15.0
23.0
31.0
24.0
22.0
,v_33.q_
35.0
31.0
31.0
30.0
34.0
22.0
27.0
Res. 3
19.0
28.0
26.0
22.0
27.0
320
29.0
30.0
33.0
36.0
35.0
39.0
29.0
s
'
36.0
28.0
32.0
27.0
42.0
30.0
30.0
26.0
30.0
i: ^SS':
28.0
31.0
30.0
22.0
21.0
30.0
22.0
20.0
_J'30.o'/
33.0
33.0
32.0
25.0
36.0
23.0
25.0
• = No data submitted
0 =
Insufficient
data
x =
Exper.
Sigma
1.53
0.58
1.53
1.53
0.00
1.73
0.58
1.00
1.00
1.00
1.53
1.15
1.00
Sf /

1.00
2.52
1.00
0.00
0.58
1.15
0.00
0.58
^0.58
//: -,'•';', * '';, - -
2.52
0.00
2.00
3.79
1.15
1.53
1.00
1.15
1.53
1.53
2.00
0.58
3.61
1.53
0.58
2.52
Rng anal Normalized deviation
(R + SR) Average (grand-avg) (known) Tag
0.354
0.118
0.354
0.354
0.000
0.354
0.118
0.236
0.236
0.236
0.354
0.236
0.236
s

0.236
0.591
0.236
0.000
0.118
0.236
0.000
0.118
0.118
".'. V ,,
0.591
0.000
0.473
0.827
0.236
0.354
0.236
0.236
0.354
1.570
0.354
0.473
0.118
0.827
0.354
0.118
0.591
19.33
27.33
24.67
23.67
27.00
30.00
29.33
29.00
33.00
37.00
35.33
37.67
28.00
".. "

37.00
30.33
31.00
27.00
41.67
30.67
30.00
26.67
30.33
' < ' , , ' *
- 25.33
31.00
32.00
17.67
22.33
29.67
23.00
21.33
", A ,' •• ' '
31.33
88.00
34.67
31.00
31.33
29.00
35.67
22.33
27.33
TAG SYMBOLS
Determined
to be an
outlier
-3.65
-0.88
-1.81
-2.15
-1.00
0.04
-0.19
-0.30
1.08
2.47
1.89
2.70
-0.65
,

2.47
0.16
0.39
-1.00
4.08
0.27
0.04
-1.11
0.16
' ' i
-1.58
0.39
0.73
-4.23
-2.61
-0.07
-2.38
-2.96
0.50
20.13
1.66
0.39
0.50
-0.30
2.00
-2.61
-0.88
ft = Above
It = Below
-3.70 U
-0.92
-1.85
-2.19
-1.04
0.00
-0.23
-0.35
1.04
2.42
1.85
2.66
-0.69
*
"-'/ •
2.42
0.12
0.35
-1.04
4.04 ft
0.23
0.00
-1.15
0.12
-; 5 - ' I ' '• •• '
-1.62
0.35
0.69
-4.27 U
-2.66
-0.12
-2.42
-3.00
0.46
20.09 x
1.62
0.35
0.46
-0.35
1.96
-2.66
" _, f S '" , ^
' f <"/ f ';/, __ ^
-0.92
control limit
control limit
-------
[ 16/17
EMSL-LV Intel-comparison Study: Gross Alpha-Beta in Water,
31-Jan-1992 1
Gross Beta

Lab
;RF*>?>>
RG
RH
RI
RJ
RK
RM
RN
RQ
RR
RS
RU -r"*
RV
RW
RY
RZ
S
SA
se
SD
SF
SG
SI
S*f
SL
SM
SN
SO
SR
ss
ST
su
sw
sx
T
U
W
X
Y

Res. 1
5?S?>t
23.0
19.0
;, V?',
34.0
25.0
29.0
18.0

34.0
21.0
- :'/
26.0
29.0
34.0

35.0
32.0
35.0
16.0
19.0
31.0
35.0

28.0
31.0
' '- ^
v'
37.0
33.0
27.0
16.0
40.0
36.0
29.0
31.0
24.0
28.0
26.0

Res. 2
K^t^Tf*
23.0
14.0
, -/« ,''-,' \
31.0
28.0
29.0
17.0
- V ' " '"'
32.0
30.0
V^'-'P", '-
26.0
40.0
33.0

36.0
34.0
40.0
15.0
19.0
29.0
34.0

26.0
31.0


31.0
32.0
27.0
15.0
31.0
36.0
32.0
29.0
23.0
29.0
26.0


Res. 3
^|r';
, :~''l
23.0
18.0
• "-' '

33.0
27.0
28.0
20.0
,'<••

34.0
36.0


22.0
48.0
35.0


37.0
29.0
37.0
18.0
18.0
29.0
34.0


21.0
31.0




33.0
31.0
26.0
21.0
35.0
39.0
31.0
31.0
24.0
28.0
25.0
Exper.
Sigma
* S
0.00
2.65

1.53
1.53
0.58
1.53
'<
1.15
7.55

2.31
9.54
1.00

1.00
2.52
2.52
1.53
0.58
1.15
0.58

3.61
0.00


3.06
1.00
0.58
3.21
4.51
1.73
1.53
1.15
0.58
0.58
0.58
Rng anal
(R + SR)

0.000
0.591
'
v 0.354
0.354
0.118
0.354

0.236
2.470

0.473
3.371
0.236

0.236
0.591
0.591
0.354
0.118
0.236
0.118

0.827
0.000


0.709
0.236
0.118
0.709
1.120
0.354
0.354
0.236
0.118
0.118
0.118
Normalized
Average (grand-avg)


23.00
17.00


32.67
26.67
28.67
18.33


33.33
29.00


24.67
39.00
34.00


36.00
31.67
37.33
16.33
18.67
29.67
34.33


25.00
31.00




33.67
32.00
26.67
17.33
35.33
37.00
30.67
30.33
23.67
28.33
25.67

-2.38
-4.46

0.97
-1.11
-0.42
-4.00

1.20
-0.30

-1.81
3.16
1.43

2.12
0.62
2.58
-4.69
-3.88
-0.07
1.54

-1.69
0.39


1.31
0.73
-1.11
-4.35
1.89
2.47
0.27
0.16
-2.15
-0.54
-1.46
deviation
(known) Tag
. , , •: . - .- •
-2.42
-4.50 II
'.' •".,. ', "'••%' *
0.92
-1.15
-0.46
-4.04 U
: ' • ''
1.15
-0.35
', '•
-1.85
3.12 ft
1.39
*
2.08
0.58
2.54
-4.73 II
-3.93 II
-0.12
1.50
•
-1.73
0.35
»
„ .% .
1.27
0.69
-1.15
-4.39 II
1.85
2.42
0.23
0.12
-2.19
-0.58
-1.50
Data sorted by Laboratory Average
Average
3.00
4.00
13.67




Tag
X
X
II
Lab
AO
NF
GT
Average



• s No data submitted
|_ 0 = Insufficient data
16.33
16.67
17.00
Tag
U
II
U
Lab
SD
KC
RH
Average
17.33
17.67
18.33
TAG SYMBOLS
x = Determined to be an outlier
Tag Lab



II SU
II Q
II RN
ft = Above control limit
II s Below control limit
-------
EMSL-LV Intel-comparison Study:
Gross Beta

Average Tag
18.33 &
18.67 U.
19.33 U
20.00 U
20.67 U
21.33
21.67
22.33
22.33
22.67
23.00
23.00
23.67
23.67
23.67
24.00
24.67
24.67
24.67
25.00
25.00
25.00
25.33
25.33
25.33
25.33
25.67
25.67
25.67
26.00
26.67
26.67
26.67
26.67
26.67
26.67
27.00
27.00
27.00
27.33
27.33
27.33
27.67
27.67
• = No data submitted
0 = Insufficient data

Data sorted by
Lab
JM
SF
NG
IU
DM
QM
BC
RB
QC
AL
RG
QK
W
NJ
MQ
AE
RV
NI
AZ
SL
HI
BN
PQ
NE
FL
AB
Y
EN
AP
KE
ST
RK
PC
GQ
FE
CO
OZ
NK
ME
RE
NH
BG
MS
J
Average
27.67
27.67
27.67
27.67
28.00
28.00
28.33
28.33
28.67
28.67
28.67
28.67
29.00
29.00
29.00
29.00
29.33
29.33
29.33
29.67
29.67
29.67
29.67
30.00
30.00
30.00
30.00
30.00
30.33
30.33
30.33
30.33
30.33
30.33
30.33
30.33
30.67
30.67
30.67
30.67
30.67
30.67
30.67
31.00
TAG
Gross Alpha-Beta in Water, 31-Jan-1992 16

Laboratory Average
Tag Lab
IE
ID
CA
AU
OF
DS
X
L
RM
LG
KZ
JP
RS
QZ
NT
M
NP
EV
DB
SG
QJ
BH
AJ
PB
NO
JG
C
A
U
PG
OT
LF
GE
EH
CG
AI
T
PA
MV
HH
DT
DH
BM
SM
Average Tag
31.00
31.00
31.00
31.00
31.00
31.00
31.00
31.33
31.33
31.33
31.33
31.33
31.33
31.33
31.67
31.67
31.67
31.67
31.67
31.67
31.67
31.67
32.00
32.00
32.00
32.00
32.33
32.33
32.33
32.33
32.33
32.33
32.33
32.67
32.67
32.67
33.00
33.00
33.00
33.00
33.00
33.00
33.00
33.33
SYMBOLS ft s Above control
x = Determined to be an outlier JJ = Below control
717 ]


Lab
QW
PR
OY
K
I
DZ
AR
QX
QQ
EA
D
BL
AW
AF
SA
N
HK
EW
E
DD
CS
CJ
ss
PV
HP
CX
FF
EL
DX
DR
BO
BK
BI
RJ
LT
BS
O
LL
JS
FP
CK
BA
AK
RR
limit
limit
-------
17/17 EMSL-LV Intercomparison Study: Gross Alpha-
Gross Beta


Beta in Water, 31-Jan-1992





Data sorted by Laboratory Average
Average
33.33
33.33
33.33
33.33
33.67
34.00
34.00
34.00
34.33
34.33
34.67
35.00
35.00

Tag Lab
JN
FN
EO
EB
SR
RY
LA
DO
SI
DE
QU
NA
DP

Average Tag
35.33
35.33
35.33
35.67
35.67
36.00
36.67
37.00
37.00
37.00
37.33
37.67
38.00
38.00
Lab
SW
OB
BB
R
CE
S
JE
SX
OS
OA
SC
OE
LR
KT
Average
39.00
39.67
39.67
40.00
40.67
41.33
41.67
43.33
47.00
65.33
82.33
88.00
88.33
131.00
% Frequency distribution of responding labs(expected prec. vs known
Tag
tr
tr
tr
tr
tr
tr
tr
tr
tr
X
X
X
X
X
value)
Lab
RW
DG
CQ
HL
MX
FJ
P
CP
EK
1C
HY
QT
GJ
JH

, HHH _

-6

%
10- - - — "-

-6

- . .
..-••-•••••••llllli
|-*»T —T_H , ,
-4 exp. prec. -2 knnw^

value
__•_
"


Frequency distribution of responding labs(std. dev.

	 	 	

••-•••••IJLlllllli
-4 std. dev. -2 m 0^

• = No data submitted
0 = Insufficient data
value

•••-


TAG SYMBOLS
x = Determined to be an outlier
•__ _•_
exp. prec.


+4
"
1
+6

vs mean value)

_•-- _«_
f
std. dev.

tr


+4

s Above control
= Below control

I
+6

limit
limit
-------