NBN EN ISO 14891 : 2002
Current
The latest, up-to-date edition.
MILK AND MILK PRODUCTS - DETERMINATION OF NITROGEN CONTENT - ROUTINE METHOD USING COMBUSTION ACCORDING TO THE DUMAS PRINCIPLE
12-01-2013
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
Covers a method for the determination of the total nitrogen content of milk and milk products.
| DocumentType |
Standard
|
| PublisherName |
Belgian Standards
|
| 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 |
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