DIN EN ISO 16634-1:2009-07
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 1: OILSEEDS AND ANIMAL FEEDING STUFFS
Hardcopy , PDF
English
01-01-2009
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Vorwort
Einleitung
1 Anwendungsbereich
2 Normative Verweisungen
3 Begriffe
4 Kurzbeschreibung
5 Reagenzien
6 Prüfeinrichtung
7 Probenahme
8 Herstellung der Untersuchungsprobe
9 Durchführung
9.1 Allgemeines
9.2 Einwaage
9.3 Steuerung des Sauerstoffbedarfs
9.4 Kalibrierung
9.5 Bestimmung
9.6 Nachweis und Auswertung
10 Berechnung und Angabe der Ergebnisse
10.1 Berechnung
10.1.1 Stickstoffgehalt
10.1.2 Rohproteingehalt
10.2 Angabe der Ergebnisse
11 Präzision
11.1 Ringversuche
11.2 Wiederholpräzision
11.3 Vergleichpräzision
12 Prüfbericht
Anhang A (informativ) Ablaufdiagramm für die
Grundausführung eines Dumas-Gerätes
Anhang B (informativ) Schematische Darstellung
geeigneter Typen von Dumas-Geräten
Anhang C (informativ) Gerätekalibrierung
C.1 Substanzen für die Kalibrierung
C.2 Beispiel für die Berechnung des
geschätzten Sauerstoffbedarfs
C.2.1 Beispiel 1
C.2.2 Beispiel 2
Anhang D (informativ) Beispiele für Umrechnungsfaktoren
vom Stickstoffgehalt zum Proteingehalt
Anhang E (informativ) Ringversuchsergebnisse
Anhang F (informativ) Zusammenhang zwischen dem
Dumas-Stickstoff und dem Kjeldahl-Stickstoff
Literaturhinweise
Describes a method for the determination of the total nitrogen content and the calculation of crude protein content of oilseeds and animal feeding stuffs.
| DevelopmentNote |
Supersedes DIN EN ISO 16634. (03/2009)
|
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| EN ISO 16634-1:2008 | Identical |
| ISO 16634-1:2008 | Identical |
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| DIN EN ISO 20483:2014-03 | CEREALS AND PULSES - DETERMINATION OF THE NITROGEN CONTENT AND CALCULATION OF THE CRUDE PROTEIN CONTENT - KJELDAHL METHOD (ISO 20483:2013) |
| 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 20483:2013 | Cereals and pulses — Determination of the nitrogen content and calculation of the crude protein content — Kjeldahl method |
| ISO 664:2008 | Oilseeds Reduction of laboratory sample to test sample |
| ISO 6497:2002 | Animal feeding stuffs Sampling |
| ISO 14891:2002 | Milk and milk products — Determination of nitrogen content — Routine method using combustion according to the Dumas principle |
| DIN ISO 5725-1:1997-11 | Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions (ISO 5725-1:1994) |
| ISO 6496:1999 | Animal feeding stuffs — Determination of moisture and other volatile matter content |
| ISO 13690:1999 | Cereals, pulses and milled products Sampling of static batches |
| ISO 5983-2:2009 | Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 2: Block digestion and steam distillation method |
| 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 6498:2012 | Animal feeding stuffs — Guidelines for sample preparation |
| ISO 5500:1986 | Oilseed residues Sampling |
| ISO 542:1990 | Oilseeds — Sampling |
| ISO 665:2000 | Oilseeds Determination of moisture and volatile matter content |
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