Name: PREN ISO 8968-1 : DRAFT 2013
Brand: CEN

PREN ISO 8968-1 : DRAFT 2013

Superseded

MILK AND MILK PRODUCTS - DETERMINATION OF NITROGEN CONTENT AND CRUDE PROTEIN CALCULATION - PART 1: KJELDAHL PRINCIPLE (ISO/DIS 8968-1:2013)

Superseded date

02-01-2014

Published date

04-25-2013

Publisher

Comite Europeen de Normalisation

Foreword ISO
Foreword IDF
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedures
10 Calculation and expression of results
11 Precision
12 Test report
Annex A (informative) - Test portion
Annex B (informative) - Collaborative Trials
Bibliography

Describes a method for the determination of the nitrogen content and crude protein calculation of milk and milk products by the Kjeldahl principle, using traditional and block digestion methods.

Committee	TC 302
DocumentType	Draft
PublisherName	Comite Europeen de Normalisation
Status	Superseded
SupersededBy	EN ISO 8968-1:2014

Standards	Relationship
13/30258434 DC : 0	Identical

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 385-1:1984	Laboratory glassware — Burettes — Part 1: General requirements
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