# Commission Regulation (EC) No 2870/2000 of 19 December 2000 laying down Community reference methods for the analysis of spirits drinks, Division 11: Method performance characteristics (precision)

Extent: E+W+S+N.I.

Statistical results of the interlaboratory test: the following tables give the values for the following compounds: ethanal, ethyl acetate, acetal, total ethanal, methanol, butan-2-ol, propan-1-ol, butan-1-ol, 2-methyl-propan-1-ol, 2 methyl-butan-1-ol, 3 methyl-butan-1-ol.
The following data were obtained from an international method performance study carried out to internationally agreed procedures.
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
ethanal
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
28
26
27
27
28
Number of outliers (laboratories)
2
4
3
3
2
Number of accepted results
56
52
54
54
56
Mean value (
× − ) μg/g
63,4
71,67
130,4
38,4
28,6
13,8 (*)
52,2 (*)
Repeatability standard deviation (Sr) μg/g
3,3
1,9
6,8
4,1
3,6
Repeatability relative standard deviation (RSDr) (%)
5,2
2,6
5,2
15,8
8,9
Repeatability limit (r) μg/g
9,3
5,3
19,1
11,6
10,1
Reproducibility standard deviation (SR) μg/g
12
14
22
6,8
8,9
Reproducibility relative standard deviation (RSDR) (%)
18,9
19,4
17,1
26,2
22,2
Reproducibility limit (R) μg/g
33,5
38,9
62,4
19,1
25,1
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
ethyl acetate
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
24
24
25
24
24
Number of outliers (laboratories)
2
2
1
2
2
Number of accepted results
48
48
50
48
48
Mean value (
× − ) μg/g
96,8
1 046
120,3
112,5
99,1
91,8 (*)
117,0 (*)
Repeatability standard deviation (Sr) μg/g
2,2
15
2,6
2,1
2,6
Repeatability relative standard deviation (RSDr) (%)
2,3
1,4
2,1
2,0
2,4
Repeatability limit (r) μg/g
6,2
40,7
7,2
5,8
7,3
Reproducibility standard deviation (SR) μg/g
6,4
79
8,2
6,2
7,1
Reproducibility relative standard deviation (RSDR) (%)
6,6
7,6
6,8
6,2
6,6
Reproducibility limit (R) μg/g
17,9
221,9
22,9
17,5
20,0
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
acetal
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
20
21
22
17
21
Number of outliers (laboratories)
4
3
2
4
3
Number of accepted results
40
42
44
34
42
Mean value (
× − ) μg/g
35,04
36,46
68,5
20,36
15,1
6,60 (*)
28,3 (*)
Repeatability standard deviation (Sr) μg/g
0,58
0,84
1,6
0,82
1,9
Repeatability relative standard deviation (RSDr) (%)
1,7
2,3
2,3
6,1
8,7
Repeatability limit (r) μg/g
1,6
2,4
4,4
2,3
5,3
Reproducibility standard deviation (SR) μg/g
4,2
4,4
8,9
1,4
3,1
Reproducibility relative standard deviation (RSDR) (%)
12,1
12,0
13,0
10,7
14,2
Reproducibility limit (R) μg/g
11,8
12,2
25,0
4,0
8,7
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
total ethanal
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
23
19
22
21
22
Number of outliers (laboratories)
1
5
2
3
2
Number of accepted results
46
38
44
42
44
Mean value (
× − ) μg/g
76,5
85,3
156,5
45,4
32,7
15,8 (*)
61,8 (*)
Repeatability standard deviation (Sr) μg/g
3,5
1,3
6,5
4,4
3,6
Repeatability relative standard deviation (RSDr) (%)
4,6
1,5
4,2
14,2
7,6
Repeatability limit (r) μg/g
9,8
3,5
18,3
12,2
10,0
Reproducibility standard deviation (SR) μg/g
13
15
24,1
7,3
9,0
Reproducibility relative standard deviation (RSDR) (%)
16,4
17,5
15,4
23,7
19,1
Reproducibility limit (R) μg/g
35,2
41,8
67,4
20,3
25,2
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
Methanol
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
26
27
27
28
25
Number of outliers (laboratories)
4
3
3
1
4
Number of accepted results
52
54
54
56
50
Mean value (
× − ) μg/g
319,8
2 245
1 326
83,0
18,6
61,5 (*)
28,9 (*)
Repeatability standard deviation (Sr) μg/g
4,4
27
22
1,5
1,3
Repeatability relative standard deviation (RSDr) (%)
1,4
1,2
1,7
2,1
5,6
Repeatability limit (r) μg/g
12,3
74,4
62,5
4,3
3,8
Reproducibility standard deviation (SR) μg/g
13
99
60
4,5
2,8
Reproducibility relative standard deviation (RSDR) (%)
3,9
4,4
4,6
6,2
11,8
Reproducibility limit (R) μg/g
35,2
278,3
169,1
12,5
7,9
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
4
Analyte
butan-2-ol
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
E Rum; split levels (*).
Samples
A
B
C
E
Number of laboratories retained after eliminating outliers
21
27
29
22
Number of outliers (laboratories)
4
3
1
3
Number of accepted results
42
54
58
44
Mean value (
× − ) μg/g
5,88
250,2
27,57
5,83
14,12 (*)
Repeatability standard deviation (Sr) μg/g
0,4
2,2
0,87
0,64
Repeatability relative standard deviation (RSDr) (%)
6,8
0,9
3,2
6,4
Repeatability limit (r) μg/g
1,1
6,1
2,5
1,8
Reproducibility standard deviation (SR) μg/g
0,89
13
3,2
0,87
Reproducibility relative standard deviation (RSDR) (%)
15,2
5,1
11,5
8,7
Reproducibility limit (R) μg/g
2,5
35,5
8,9
2,4
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
propan-1-ol
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
29
27
27
29
29
Number of outliers (laboratories)
2
4
3
2
2
Number of accepted results
58
54
54
58
58
Mean value (
× − ) μg/g
86,4
3 541
159,1
272,1
177,1
229,3 (*)
222,1 (*)
Repeatability standard deviation (Sr) μg/g
3,0
24
3,6
2,3
3,3
Repeatability relative standard deviation (RSDr) (%)
3,4
0,7
2,3
0,9
1,6
Repeatability limit (r) μg/g
8,3
68,5
10,0
6,4
9,1
Reproducibility standard deviation (SR) μg/g
5,3
150
6,5
9,0
8,1
Reproducibility relative standard deviation (RSDR) (%)
6,1
4,1
4,1
3,6
4,1
Reproducibility limit (R) μg/g
14,8
407,2
18,2
25,2
22,7
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
propan-1-ol
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates. (*).
Samples
A
B
C
Number of laboratories retained after eliminating outliers
20
22
22
Number of outliers (laboratories)
4
4
6
Number of accepted results
40
44
44
Mean value (
× − ) μg/g
3,79
5,57
7,54
Repeatability standard deviation (Sr) μg/g
0,43
0,2
0,43
Repeatability relative standard deviation (RSDr) (%)
11,2
3,6
5,6
Repeatability limit (r) μg/g
1,1
0,6
1,2
Reproducibility standard deviation (SR) μg/g
0,59
0,55
0,82
Reproducibility relative standard deviation (RSDR) (%)
15,7
9,8
10,8
Reproducibility limit (R) μg/g
1,7
1,5
2,3
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
2-methylpropan-1-ol
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
28
31
30
26
25
Number of outliers (laboratories)
3
0
1
5
6
Number of accepted results
56
62
60
52
50
Mean value (
× − ) μg/g
174,2
111,7
185,0
291,0
115,99
246,8 (*)
133,87 (*)
Repeatability standard deviation (Sr) μg/g
2,3
1,6
2,5
1,8
0,74
Repeatability relative standard deviation (RSDr) (%)
1,3
1,4
1,3
0,7
0,6
Repeatability limit (r) μg/g
6,4
4,5
6,9
5,0
2,1
Reproducibility standard deviation (SR) μg/g
8,9
8,9
9,7
6,0
6,2
Reproducibility relative standard deviation (RSDR) (%)
5,1
8,0
5,2
2,2
5,0
Reproducibility limit (R) μg/g
24,9
24,9
27,2
16,9
17,4
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
2-methyl-butan-1-ol
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
25
26
25
27
25
Number of outliers (laboratories)
3
2
3
1
2
Number of accepted results
50
52
50
54
50
Mean value (
× − ) μg/g
113,0
48,3
91,6
72,1
39,5
45,2 (*)
61,5 (*)
Repeatability standard deviation (Sr) μg/g
2,1
1,5
1,7
2,3
2,3
Repeatability relative standard deviation (RSDr) (%)
1,9
3,1
1,8
3,9
4,5
Repeatability limit (r) μg/g
6,0
4,2
4,7
6,4
6,3
Reproducibility standard deviation (SR) μg/g
7,4
3,8
6,6
4,7
4,5
Reproducibility relative standard deviation (RSDR) (%)
6,6
7,9
7,2
8,1
8,8
Reproducibility limit (R) μg/g
20,8
10,7
18,4
13,3
12,5
Year of interlaboratory test
1 997
Number of laboratories
32
Number of samples
5
Analyte
3-methyl-butan-1-ol
Sample types
A Brandy; blind duplicates.
B Kirsch; blind duplicates.
C Grappa; blind duplicates.
D Whisky; split levels (*).
E Rum; split levels (*).
Samples
A
B
C
D
E
Number of laboratories retained after eliminating outliers
23
23
24
27
21
Number of outliers (laboratories)
5
5
4
1
6
Number of accepted results
46
46
48
54
42
Mean value (
× − ) μg/g
459,4
242,7
288,4
142,2
212,3
120,4 (*)
245,6 (*)
Repeatability standard deviation (Sr) μg/g
5,0
2,4
3,4
2,4
3,2
Repeatability relative standard deviation (RSDr) (%)
1,1
1,0
1,2
1,8
1,4
Repeatability limit (r) μg/g
13,9
6,6
9,6
6,6
9,1
Reproducibility standard deviation (SR) μg/g
29,8
13
21
8,5
6,7
Reproducibility relative standard deviation (RSDR) (%)
6,5
5,2
7,3
6,5
2,9
Reproducibility limit (R) μg/g
83,4
35,4
58,8
23,8
18,7

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Source: https://www.legislation.gov.uk/eur/2000/2870/annex/division/III/division/III.2/division/11 (the official version)
Page: https://openlegislation.uk/eu-regulation-2000-2870/annex/division-III/division-III.2/division-11
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.