EN 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 5983-2:2009)

ISO 5983-2:2009 specifies a method for the determination of nitrogen content of animal feeding stuffs according to the Kjeldahl method, and a method for the calculation of the crude protein content.
It is suitable for use as a semi-micro rapid routine method using block digestion, copper catalyst, and steam distillation into boric acid.
The method is applicable to the determination of greater than 0,5 % mass fraction Kjeldahl nitrogen in animal feeding stuffs, pet foods, and their raw materials.
The method does not measure oxidized forms of nitrogen nor heterocyclic nitrogen compounds.
The method does not distinguish between protein nitrogen and non-protein nitrogen.

Futtermittel - Bestimmung des Stickstoffgehaltes und Berechnung des Rohproteingehaltes - Teil 2: Blockaufschluss- und Dampfdestillationsverfahren (ISO 5983-2:2009)

Dieser Teil von ISO 5983 legt ein Verfahren zur Bestimmung des Stickstoffgehaltes in Futtermitteln nach der
Kjeldahl-Methode und ein Verfahren zur Berechnung des Rohproteingehaltes fest.
Es ist geeignet für die Anwendung als ein Halbmikro-Schnellverfahren unter Verwendung eines Blockaufschlusses
mit Kupferkatalysator und Dampfdestillation in Borsäure.
Das Verfahren ist anwendbar zur Bestimmung von mehr als 0,5 % Massenanteil Kjeldahl-Stickstoff in
Tierfuttermitteln, Haustierfutter und deren Rohmaterialien.
Mit diesem Verfahren können oxidierte Formen des Stickstoffs oder heterozyklische Stickstoffverbindungen
nicht bestimmt werden.
Dieses Verfahren unterscheidet nicht zwischen Proteinstickstoff und Nichtproteinstickstoff.
ANMERKUNG Ist es von Bedeutung, den Gehalt des Nichtproteinstickstoffs zu bestimmen, kann ein geeignetes
Verfahren angewendet werden.

Aliments des animaux - Dosage de l'azote et calcul de la teneur en protéines brutes - Partie 2: Méthode de digestion en bloc et distillation à la vapeur (ISO 5983-2:2009)

L'ISO 5983‑2:2009 spécifie une méthode de détermination de la teneur en azote des aliments pour animaux suivant la méthode Kjeldahl, ainsi qu'une méthode pour le calcul de la teneur en protéines brutes.
Elle peut être utilisée comme semi microméthode de routine rapide utilisant la digestion en bloc, un catalyseur au cuivre et une distillation à la vapeur dans de l'acide borique.
La méthode est applicable à la détermination de l'azote Kjeldahl présent à plus de 0,5 % en fraction massique dans les aliments pour animaux, la nourriture pour animaux de compagnie et leurs matières premières.
La méthode ne mesure pas les formes oxydées de l'azote ni les composés azotés hétérocycliques.
La méthode ne fait pas la différence entre l'azote protéique et l'azote non protéique.

Krma - Določevanje dušika in izračun vsebnosti surovih beljakovin - 2. del: Metoda razklopa v bloku in destilacije z vodno paro (ISO 5983-2:2009)

General Information

• Status: Published
• Publication Date: 31-May-2009
• Withdrawal Date: 30-Dec-2009
• ICS: 65.120 - Animal feeding stuffs
• Technical Committee: CEN/TC 327 - Animal feeding stuffs - Methods of sampling and analysis
• Drafting Committee: CEN/TC 327 - Animal feeding stuffs - Methods of sampling and analysis
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 01-Jun-2009
• Completion Date: 01-Jun-2009
• Ref Project: SIST EN 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 5983-2:2009)

Relations

• Replaces: EN ISO 5983-2:2005 - Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 2: Block digestion/steam distillation method (ISO 5983-2:2005)
• Effective Date: 06-Jun-2009

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Futtermittel - Bestimmung des Stickstoffgehaltes und Berechnung des Rohproteingehaltes - Teil 2: Blockaufschluss- und Dampfdestillationsverfahren (ISO 5983-2:2009)Aliments des animaux - Dosage de l'azote et calcul de la teneur en protéines brutes - Partie 2: Méthode de digestion en bloc et distillation à la vapeur (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 5983-2:2009)65.120KrmilaAnimal feeding stuffsICS:Ta slovenski standard je istoveten z:EN ISO 5983-2:2009SIST EN ISO 5983-2:2009en,fr,de01-december-2009SIST EN ISO 5983-2:2009SLOVENSKI
STANDARDSIST EN ISO 5983-2:20051DGRPHãþD



SIST EN ISO 5983-2:2009



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 5983-2June 2009ICS 65.120Supersedes EN ISO 5983-2:2005
English VersionAnimal feeding stuffs - Determination of nitrogen content andcalculation of crude protein content - Part 2: Block digestion andsteam distillation method (ISO 5983-2:2009)Aliments des animaux - Dosage de l'azote et calcul de lateneur en protéines brutes - Partie 2: Méthode de digestionen bloc et distillation à la vapeur (ISO 5983-2:2009)Futtermittel - Bestimmung des Stickstoffgehaltes undBerechnung des Rohproteingehaltes - Teil 2:Blockaufschluss- und Dampfdestillationsverfahren (ISO5983-2:2009)This European Standard was approved by CEN on 30 May 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 5983-2:2009: ESIST EN ISO 5983-2:2009



EN ISO 5983-2:2009 (E) 2 Contents Page Foreword .3 SIST EN ISO 5983-2:2009



EN ISO 5983-2:2009 (E) 3 Foreword This document (EN ISO 5983-2:2009) has been prepared by Technical Committee ISO/TC 34 "Food products" in collaboration with Technical Committee CEN/TC 327 “Animal feeding stuffs - Methods of sampling and analysis”, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 5983-2:2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 5983-2:2009 has been approved by CEN as a EN ISO 5983-2:2009 without any modification.
SIST EN ISO 5983-2:2009



SIST EN ISO 5983-2:2009



Reference numberISO 5983-2:2009(E)© ISO 2009
INTERNATIONAL STANDARD ISO5983-2Second edition2009-06-01Animal feeding stuffs — Determination of nitrogen content and calculation of crude protein content — Part 2: Block digestion and steam distillation method Aliments des animaux — Dosage de l'azote et calcul de la teneur en protéines brutes — Partie 2: Méthode de digestion en bloc et distillation à la vapeur
SIST EN ISO 5983-2:2009



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