Food products. Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content Cereals, pulses and milled cereal products

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

06-30-2016

Publisher

British Standards Institution

This part of ISO16634 specifies a method for the determination of the total nitrogen content and the calculation of the crude protein content of cereals, pulses and milled cereal products. This method, like the Kjeldahl method (see References [1] and [6]), does not distinguish between protein nitrogen and non-protein nitrogen. For the calculation of the protein content, various conversion factors are used (see 3.2).

Committee	AW/4
DevelopmentNote	Supersedes DD CEN ISO/TS 16634-2 & 14/30311290 DC. (06/2016)
DocumentType	Standard
Pages	36
PublisherName	British Standards Institution
Status	Current
Supersedes	DD CEN ISO/TS 16634-2:2009 14/30311290 DC : 0
UnderRevision	DD CEN ISO/TS 16634-2:2009

Standards	Relationship
EN ISO 16634-2:2016	Identical
ISO 16634-2:2016	Identical

ISO 5725-1:1994	Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 1871:2009	Food and feed products General guidelines for the determination of nitrogen by the Kjeldahl method
ISO 20483:2013	Cereals and pulses — Determination of the nitrogen content and calculation of the crude protein content — Kjeldahl method
ISO 712:2009	Cereals and cereal products — Determination of moisture content — Reference method
ISO 5725-6:1994	Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values
ISO 14891:2002	Milk and milk products Determination of nitrogen content Routine method using combustion according to the Dumas principle
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 6540:1980	Maize Determination of moisture content (on milled grains and on whole grains)
ISO 24333:2009	Cereals and cereal products — Sampling
ISO 24557:2009	Pulses Determination of moisture content Air-oven method