# Commission Regulation (EC) No 900/2008 of 16 September 2008 laying down the methods of analysis and other technical provisions necessary for the application of the arrangements for imports of certain goods resulting from the processing of agricultural products (Codified version), Division: Results of an interlaboratory test (Informative)

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

An inter laboratory test was carried out in 2008 with the participation of the European Customs laboratories.
The evaluation of precision data was performed according to the ‘Protocol for the design, conduct and interpretation of method-performance studies’, W. Horwitz, (IUPAC technical report), Pure & Appl. Chem., Vol. 67, N o 2, PP.331-343, 1995.
The precision data are given in the table below.
Samples 1 chocolate and biscuit bar 2 biscuit
Z sample 1
Z sample 2
Number of laboratories
41
42
Number of laboratories after eliminating outliers
38
39
Mean (%, m/m)
29,8
55,0
Repeatability standard deviation sr (%, m/m)
0,5
0,5
Reproducibility standard deviation sR (%, m/m)
1,5
2,3
Repeatability limit r (%, m/m)
1,4
1,4
Reproducibility limit R (%, m/m)
4,2
6,6

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Source: https://www.legislation.gov.uk/eur/2008/900/annex/I/division/8/division/1 (the official version)
Page: https://openlegislation.uk/eu-regulation-2008-900/annex-I/division-8/division-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.