EN ISO 8968-5 : 2001

Name: EN ISO 8968-5 : 2001
Brand: CEN

Superseded

View Superseded by

MILK - DETERMINATION OF NITROGEN CONTENT - PART 5: DETERMINATION OF PROTEIN-NITROGEN CONTENT

Superseded date

01-04-2016

Published date

12-01-2013

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Term and definition
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
   9.1 Test portion
   9.2 Direct determination
   9.3 Indirect determination
10 Calculation and expression of results
   10.1 Calculation of protein-nitrogen content
   10.2 Calculation of true protein content
11 Precision
   11.1 Interlaboratory test
   11.2 Repeatability
   11.3 Reproducibility
12 Test report
Bibliography

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

Committee	TC 302
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Superseded
SupersededBy	EN ISO 8968-4:2016

Standards	Relationship
NBN EN ISO 8968-5 : 2002	Identical
BS EN ISO 8968-5:2002	Identical
SN EN ISO 8968-5 : 2001	Identical
UNI EN ISO 8968-5 : 2002	Identical
NEN EN ISO 8968-5 : 2002	Identical
UNE-EN ISO 8968-5:2002	Identical
PN EN ISO 8968-5 : 2004	Identical
ISO 8968-5:2001	Identical
I.S. EN ISO 8968-5:2002	Identical
NF EN ISO 8968-5 : 2002	Identical
NS EN ISO 8968-5 : 1ED 2002	Identical
DIN EN ISO 8968-5:2002-06	Identical

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 8968-4:2016	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 707:2008	Milk and milk products — Guidance on sampling
ISO 8968-2:2001	Milk Determination of nitrogen content Part 2: Block-digestion method (Macro method)
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
ISO 5725:1986	Precision of test methods Determination of repeatability and reproducibility for a standard test method by inter-laboratory tests