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ISO 16634-1:2008

Current

Current

The latest, up-to-date edition.

Food products - Determination of the total nitrogen content by combustion according to the Dumas principle and calculation of the crude protein content — Part 1: Oilseeds and animal feeding stuffs

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

22-10-2008

ISO 16634-1:2008 specifies a method for the determination of the total nitrogen content and the calculation of crude protein content of oilseeds and animal feeding stuffs.

This method, like the Kjeldahl method, does not distinguish between protein nitrogen and non-protein nitrogen. For the calculation of protein content, various conversion factors are used.

This method is not applicable to milk and milk products.

Committee
ISO/TC 34
DevelopmentNote
Supersedes ISO/DIS 16634-1. (10/2008)
DocumentType
Standard
Pages
30
PublisherName
International Organization for Standardization
Status
Current

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ISO 12099:2017 Animal feeding stuffs, cereals and milled cereal products — Guidelines for the application of near infrared spectrometry
I.S. EN ISO 12099:2017 ANIMAL FEEDING STUFFS, CEREALS AND MILLED CEREAL PRODUCTS - GUIDELINES FOR THE APPLICATION OF NEAR INFRARED SPECTROMETRY (ISO 12099:2017)

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 5983-1:2005 Animal feeding stuffs Determination of nitrogen content and calculation of crude protein content Part 1: Kjeldahl method
ISO 20483:2013 Cereals and pulses — Determination of the nitrogen content and calculation of the crude protein content — Kjeldahl method
ISO 664:2008 Oilseeds Reduction of laboratory sample to test sample
ISO 6497:2002 Animal feeding stuffs Sampling
ISO 14891:2002 Milk and milk products Determination of nitrogen content Routine method using combustion according to the Dumas principle
ISO 6496:1999 Animal feeding stuffs — Determination of moisture and other volatile matter content
ISO 13690:1999 Cereals, pulses and milled products Sampling of static batches
ISO 5983-2:2009 Animal feeding stuffs Determination of nitrogen content and calculation of crude protein content Part 2: Block digestion and steam distillation 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 6498:2012 Animal feeding stuffs — Guidelines for sample preparation
ISO 5500:1986 Oilseed residues Sampling
ISO 542:1990 Oilseeds — Sampling
ISO 665:2000 Oilseeds Determination of moisture and volatile matter content

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