MILK AND MILK PRODUCTS - DETERMINATION OF NITROGEN CONTENT - ROUTINE METHOD USING COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2002

Publisher

National Standards Authority of Ireland

Preview

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.

Foreword
1 Scope
2 Normative reference
3 Term and definition
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
    8.1 General
    8.2 Liquid test samples
9 Procedure
    9.1 General
    9.2 Test portion
    9.3 Control of oxygen demand
    9.4 Calibration
    9.5 Determination
    9.6 Detection and integration
10 Calculation and expression of results
    10.1 Calculation
    10.2 Expression of results
11 Precision
    11.1 Interlaboratory test
    11.2 Repeatability
    11.3 Reproducibility
12 Test report
Annex A (informative) Flowchart for the basic design of
        a Dumas apparatus
Annex B (informative) Schemes of suitable types of Dumas
        apparatus
Annex C (informative) Equipment calibration
Annex D (informative) Comparison of results using the
        Dumas method with those obtained by the
        Kjeldahl method
Bibliography

Describes a routine method for the determination of the total nitrogen content of milk and milk products.

DocumentType	Standard
Pages	28
PublisherName	National Standards Authority of Ireland
Status	Current

Standards	Relationship
EN ISO 14891 : 2002	Identical
UNI EN ISO 14891 : 2002	Identical
DIN EN ISO 14891:2002-07	Identical
ISO 14891:2002	Identical
UNE-EN ISO 14891:2002	Identical
BS EN ISO 14891:2002	Identical