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DIN EN ISO 8968-4:2016-09

Current

Current

The latest, up-to-date edition.

MILK AND MILK PRODUCTS - DETERMINATION OF NITROGEN CONTENT - PART 4: DETERMINATION OF PROTEIN AND NON-PROTEIN NITROGEN CONTENT AND TRUE PROTEIN CONTENT CALCULATION (REFERENCE METHOD) (ISO 8968-4:2016)

Available format(s)

Hardcopy , PDF

Language(s)

English, German

Published date

01-01-2016

National foreword
National Annex NA (informative) - Bibliography
European forewords
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

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

DevelopmentNote
Supersedes DIN EN ISO 8968-5 E. (09/2016)
DocumentType
Standard
Pages
21
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
Status
Current

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
DIN ISO 5725-2:2002-12 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 (ISO 5725-2:1994 including Technical Corrigendum 1:2002)
ISO 707:2008 Milk and milk products — Guidance on sampling
DIN EN ISO 707 E : 2009 MILK AND MILK PRODUCTS - GUIDANCE ON SAMPLING
DIN ISO 5725-1:1997-11 ACCURACY (TRUENESS AND PRECISION) OF MEASUREMENT METHODS AND RESULTS - PART 1: GENERAL PRINCIPLES AND DEFINITIONS
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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