Name: EN ISO 8968-3:2007
Brand: CEN

Milk - Determination of nitrogen content - Part 3: Block-digestion method (Semi-micro rapid routine method) (ISO 8968-3:2004)

Amended by

EN ISO 8968-3:2007/AC:2012

Published date

20-06-2007

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Procedure
   9.1 Test portion and pretreatment
   9.2 Determination
   9.3 Blank test
   9.4 Recovery tests
10 Calculation and expression of results
   10.1 Calculation of nitrogen content
11 Precision
12 Test report
Annex A (informative) Results of interlaboratory test
Annex B (informative) Modified procedure for analysis
                      of other milk products
Bibliography

ISO 8968-3|IDF 20-3:2004 specifies a method for the determination of the nitrogen content of liquid, whole or skimmed milk.It concerns a semi-micro rapid routine method following the block-digestion principle.

Committee	CEN/TC 302
DocumentType	Standard
PublisherName	Comite Europeen de Normalisation
Status	Current

Standards	Relationship
BS EN ISO 8968-3:2007	Identical
UNI EN ISO 8968-3 : 2008	Identical
UNE-EN ISO 8968-3:2007	Identical
NEN EN ISO 8968-3 : 2007	Identical
PN EN ISO 8968-3 : 2008	Identical
NBN EN ISO 8968-3 : 2007 COR 2012	Identical
ISO 8968-3:2004	Identical
SN EN ISO 8968-3:2007	Identical
SN EN ISO 8968-3 : 2007 CORR 2012	Identical
SS-EN ISO 8968-3:2007	Identical
NS EN ISO 8968-3 : 2007 AC 2012	Identical
I.S. EN ISO 8968-3:2007	Identical
NF EN ISO 8968-3 : 2007	Identical
DIN EN ISO 8968-3:2007-09	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 385:2005	Laboratory glassware Burettes
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