I.S. EN ISO 16634-2:2016
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 2: CEREALS, PULSES AND MILLED CEREAL PRODUCTS (ISO 16634-2:2016)
Hardcopy , PDF
English
01-01-2016
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.
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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 |
| 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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