GL and GH samples 2009 - National Physical Laboratory

56
27
29
25
41
17
61
40
34
23
68
62
19
84
72
86
58
28
35
81
53
52
42
47
66
65
75
5
87
76
39
21
22
46
54
8
73
82
30
13
15
7
38
Deviation (%)
GL and GH samples 2009
50
0
-50
Arvic Harms
National Physical Laboratory
20 January 2010
Radionuclides in GL and GH
8 nuclides:
60Co, 65Zn, 85Sr, 125Sb, 133Ba, 134Cs, 137Cs
Participants:
GL
GH
50
40
(2008: 55)
(2008: 44)
and 152Eu
‘False’ positives
GL
40K
57Co
125I
2
1
1
(background)
(152Eu)
(125Sb)
1
1
1
(?)
(125Sb)
(X-ray from 152Eu?)
GH
113Sn
125I
129I
GL composition (Bq kg-1)
60Co
65Zn
85Sr
125Sb
133Ba
134Cs
137Cs
152Eu
NPL
Labs
t-test
Ratio
5.035(12)
5.50(4)
7.01(5)
1.366(7)
3.571(25)
14.02(10)
4.47(3)
1.789(12)
5.05(4)
5.63(5)
7.18(6)
1.372(24)
3.44(3)
13.15(7)
4.59(4)
1.773(23)
0.39
2.07
2.19
0.25
-3.31 D
-7.12 D
2.53
-0.61
1.00
1.02
1.02
1.00
0.96
0.94
1.03
0.99
GH composition (Bq g-1)
60Co
65Zn
85Sr
125Sb
133Ba
134Cs
137Cs
152Eu
NPL
Labs
t-test
Ratio
5.418(12)
5.92(4)
7.54(5)
1.470(7)
3.84(3)
15.09(11)
4.81(4)
1.925(13)
5.36(3)
5.92(4)
7.60(5)
1.438(12)
3.76(3)
14.51(9)
4.89(3)
1.901(13)
-1.67
0.04
0.82
-2.34
-2.35
-4.11 D
1.73
-1.30
0.99
1.00
1.01
0.98
0.98
0.96
1.02
0.99
GL and GH in agreement (%)
GL
60Co
65Zn
85Sr
125Sb
133Ba
134Cs
137Cs
152Eu
82
74
64
56
84
72
88
58
GH
(69)
(-)
(-)
(-)
(71)
(65)
(76)
(69)
(x) refers to 2008 values
73
60
68
73
65
63
78
68
(70)
(-)
(-)
(-)
(57)
(68)
(68)
(55)
Results
GL
72%
12%
5%
11%
‘in agreement’
‘questionable’
‘discrepant’
‘missing’
(2008)
68%
15%
13%
4%
68%
9%
18%
4%
‘in agreement’
‘questionable’
‘discrepant’
‘missing’
61%
22%
14%
3%
GH
83
118
100
82
110
72
124
26
86
27
18
35
46
62
23
29
25
41
74
111
58
114
121
88
119
28
53
61
123
47
39
42
51
65
19
76
117
89
122
95
91
10
8
17
15
126
5
40
59
31
Deviation (%) Co-60 GL
50
0
-50
83
7
124
116
100
76
93
86
45
17
88
25
15
18
48
13
46
120
8
108
32
89
38
5
28
10
35
123
27
55
59
104
31
77
117
47
82
16
58
126
Deviation (%) Co-60 GH
50
0
-50
31
83
111
118
100
89
82
47
114
29
86
40
124
18
110
10
42
19
62
46
76
28
35
58
26
65
74
17
25
5
95
23
15
53
88
123
121
41
72
27
119
59
39
122
51
61
91
8
117
126
Deviation (%) Zn-65 GL
50
0
-50
31
83
124
116
86
7
100
45
18
93
76
46
48
25
88
15
32
123
38
13
10
47
59
17
104
108
89
5
28
120
35
77
82
27
55
16
58
8
117
126
Deviation (%) Zn-65 GH
50
0
-50
31
83
118
17
100
121
18
47
74
110
65
10
40
25
46
62
124
19
95
58
72
89
35
61
23
53
26
29
111
88
28
41
5
122
91
42
119
86
123
114
15
8
82
76
27
117
51
126
59
39
Deviation (%) Sr-85 GL
50
0
-50
7
31
83
124
116
100
45
88
86
25
55
89
120
17
32
48
46
93
76
35
28
13
47
77
5
10
15
108
59
18
38
104
123
8
16
117
82
58
126
27
Deviation (%) Sr-85 GH
50
0
-50
5
8
17
31
35
40
41
47
59
62
74
76
83
88
100
111
118
124
86
25
121
95
82
58
28
29
122
65
18
19
42
114
61
23
119
123
91
53
117
46
89
110
51
26
15
39
72
126
10
27
Deviation (%) Sb-125 GL
50
0
-50
31
83
124
100
116
86
117
45
88
93
108
13
120
47
5
35
76
17
18
28
89
59
46
32
15
27
55
77
25
10
123
8
38
48
104
16
82
58
126
7
Deviation (%) Sb-125 GH
50
0
-50
31
83
118
100
62
18
114
76
28
110
19
46
88
40
42
124
86
111
121
27
119
126
17
53
74
58
41
82
10
95
47
29
8
89
65
72
61
122
23
15
123
26
5
51
35
25
91
117
39
59
Deviation (%) Ba-133 GL
50
0
-50
31
83
118
100
62
18
114
76
28
110
19
46
88
40
42
124
86
111
121
27
119
126
17
53
74
58
41
82
10
95
47
29
8
89
65
72
61
122
23
15
123
26
5
51
35
25
91
117
39
59
LCS Ba-133 GL
50
0
-50
31
83
124
7
116
100
15
93
45
108
28
82
76
88
5
86
8
10
13
120
77
18
55
25
38
48
46
32
17
47
27
59
35
89
126
123
16
117
104
58
Deviation (%) Ba-133 GH
50
0
-50
31
26
100
41
27
19
28
89
124
82
111
61
35
119
18
95
88
62
17
29
121
10
91
117
118
110
72
83
53
46
42
47
74
86
23
15
76
58
114
126
25
65
40
123
39
122
51
5
59
8
Deviation (%) Cs-134 GL
50
0
-50
31
26
100
41
27
19
28
89
124
82
111
61
35
119
18
95
88
62
17
29
121
10
91
117
118
110
72
83
53
46
42
47
74
86
23
15
76
58
114
126
25
65
40
123
39
122
51
5
59
8
LCS Cs-134 GL
50
0
-50
31
16
124
7
76
100
116
93
28
120
89
108
86
88
5
27
17
10
48
13
46
83
18
32
77
38
25
55
15
35
8
59
104
45
47
123
126
117
82
58
Deviation (%) Cs-134 GH
50
0
-50
31
16
124
7
76
100
116
93
28
120
89
108
86
88
5
27
17
10
48
13
46
83
18
32
77
38
25
55
15
35
8
59
104
45
47
123
126
117
82
58
LCS Cs-134 GH
50
0
-50
89
74
41
110
62
29
18
119
100
121
10
26
39
40
118
58
95
25
65
72
23
88
114
86
46
82
19
5
27
83
28
123
35
53
61
111
47
124
51
8
17
122
91
42
15
117
76
126
59
31
Deviation (%) Cs-137 GL
50
0
-50
124
116
89
100
86
88
93
13
45
76
25
48
46
32
17
55
31
18
28
15
5
47
38
35
8
120
27
59
104
10
108
123
83
77
82
117
16
58
126
7
Deviation (%) Cs-137 GH
50
0
-50
31
35
40
41
47
52
62
83
111
118
122
117
114
76
18
61
19
121
89
119
58
28
124
26
95
46
86
53
91
74
126
42
123
110
29
88
51
65
8
72
23
39
10
15
25
82
100
5
17
27
Deviation (%) Eu-152 GL
50
0
-50
31
83
124
100
10
116
93
76
45
86
27
88
28
13
108
35
120
18
77
89
25
15
46
32
104
5
47
17
38
82
59
117
123
16
8
55
126
58
48
7
Deviation (%) Eu-152 GH
50
0
-50
Thank you