DIN EN ISO 20483:2014-03
Current
The latest, up-to-date edition.
CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD (ISO 20483:2013)
Hardcopy , PDF
English, German
01-03-2014
National foreword
National Annex NA (informative) - Bibliography
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Reagents
6 Apparatus
7 Sampling
8 Preparation of test sample
9 Determination of the moisture content
10 Procedure
11 Expression of results
12 Precision
13 Test report
Annex A (informative) - Results of interlaboratory tests
Annex B (informative) - Critical difference and practical
application of the repeatability and reproducibility
limits to different protein contents
protein contents
Annex C (informative) - Factors for converting nitrogen
content to protein content
Bibliography
Defines a method for the determination of the nitrogen content of cereals, pulses and derived products, according to the Kjeldahl method, and a method for calculating the crude protein content.
| Committee |
ISO/TC 34
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| BS EN ISO 20483:2013 | Identical |
| I.S. EN ISO 20483:2013 | Identical |
| EN ISO 20483:2013 | Identical |
| NBN EN ISO 20483 : 2014 | Identical |
| NEN EN ISO 20483 : 2013 | Identical |
| NS EN ISO 20483 : 2013 | Identical |
| NF EN ISO 20483 : 2014 | Identical |
| ISO 20483:2013 | Identical |
| UNE-EN ISO 20483:2014 | Identical |
| DIN EN ISO 16634-1:2009-07 | 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 |
| DIN EN ISO 3188:1994-10 | STARCHES AND DERIVED PRODUCTS - DETERMINATION OF NITROGEN CONTENT OF STARCHES AND DERIVED PRODUCTS BY THE KJELDAHL METHOD - TITRIMETRIC METHOD |
| 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 |
| DIN ISO 5725-2:2002-12 | 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 5725-2:1994 including Technical Corrigendum 1:2002) |
| ISO 3188:1978 | Starches and derived products — Determination of nitrogen content by the Kjeldahl method — Titrimetric method |
| DIN EN ISO 6540:2010-08 | Maize - Determination of moisture content (on milled grains and on whole grains) (ISO 6540:1980); German version EN ISO 6540:2010 |
| DIN ISO 5725-6:2002-08 | ACCURACY (TRUENESS AND PRECISION) OF MEASUREMENT METHODS AND RESULTS - PART 6: USE IN PRACTICE OF ACCURACY VALUES |
| DIN ISO 5725-3:2003-02 | Accuracy (trueness and precision) of measurement methods and results - Part 3: Intermediate measures of the precision of a standard measurement method (ISO 5725-3:1994 including Technical Corrigendum 1:2001) |
| ISO 712:2009 | Cereals and cereal products — Determination of moisture content — Reference method |
| ISO 5725-3:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 3: Intermediate measures of the precision of a standard measurement method |
| ISO 5725-6:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values |
| DIN EN ISO 24333:2010-04 | Cereals and cereal products - Sampling (ISO 24333:2009) |
| 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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