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FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 2: CEREALS, PULSES AND MILLED CEREAL PRODUCTS (ISO 16634-2:2016)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2016

Publisher

National Standards Authority of Ireland

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For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

National Foreword
European Foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of the test sample
9 Procedure
10 Calculation and expression of results
11 Precision
12 Test report
Annex A (informative) - Flowchart for a basic Dumas
apparatus
Annex B (informative) - Schematic diagrams of suitable
types of Dumas apparatus
Annex C (informative) - Equipment calibration
Annex D (informative) - Results of interlaboratory tests
Bibliography

Describes 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.

DevelopmentNote	Supersedes SR CEN ISO/TS 16634-2. (07/2016)
DocumentType	Standard
Pages	42
PublisherName	National Standards Authority of Ireland
Status	Current
Supersedes	S.R. CEN ISO TS 16634-2:2009

Standards	Relationship
ISO 16634-2:2016	Identical
EN 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

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I.S. EN ISO 16634-2:2016

FOOD PRODUCTS - DETERMINATION OF THE TOTAL NITROGEN CONTENT BY COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE AND CALCULATION OF THE CRUDE PROTEIN CONTENT - PART 2: CEREALS, PULSES AND MILLED CEREAL PRODUCTS (ISO 16634-2:2016)

Table of Contents

Abstract

General Product Information

International Equivalents

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