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BS EN ISO 8968-4:2016

Current
Current

The latest, up-to-date edition.

Milk and milk products. Determination of nitrogen content Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method)
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

28-02-2017

Forewords
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure - Direct protein nitrogen approach
10 Procedure - Indirect protein nitrogen approach
11 Precision
12 Test report
Annex A (informative) - Results of a collaborative
        study - Estimation of precision data of direct and
        indirect methods for the true protein determination
Bibliography

Defines a method for the direct and indirect determination of the protein nitrogen content of liquid, whole or skimmed milk.

This part of ISO8968| IDF20 specifies a method for the direct and indirect determination of the protein nitrogen content of liquid, whole or skimmed milk.

Committee
AW/5
DevelopmentNote
Supersedes 98/712620 DC (02/2002) Supersedes 13/30257963 DC. (05/2016) Supersedes BS EN ISO 8968-5. (03/2017)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Current
Supersedes

ISO 8968-1:2014 Milk and milk products — Determination of nitrogen content — Part 1: Kjeldahl principle and crude protein calculation
ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 707:2008 Milk and milk products — Guidance on sampling
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method

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