SIST EN ISO 13904:2016

Animal feeding stuffs - Determination of tryptophan content (ISO 13904:2016)

This International Standard specifies a method for determination of the total and free tryptophan (Trp)
content in feeding stuffs (e.g. complete and complementary feeds, supplementary feeds, raw materials,
ingredients, and concentrates) and determination of free tryptophan in commercial pure substances
and premixtures containing more than 2 % of tryptophan.
It does not distinguish between D- and L-forms.

Futtermittel - Bestimmung des Tryptophangehalts (ISO 13904:2016)

Diese Internationale Norm legt ein Verfahren zur Bestimmung des Gehaltes an Gesamttryptophan und an freiem Tryptophan (Trp) in Futtermitteln (z. B. Allein- und Ergänzungsfuttermittel, Milchaustausch-Futtermittel, Rohstoffe, Futterbestandteile und Konzentrate) und zur Bestimmung von freiem Tryptophan in handelsüblichen Reinsubstanzen und Vormischungen, die mehr als 2 % Tryptophan enthalten, fest.
Bei dem Verfahren wird nicht zwischen D  und L Formen unterschieden.

Aliments des animaux - Détermination de la teneur en tryptophane (ISO 13904:2016)

ISO 13904:2016 décrit une méthode de dosage du tryptophane total et libre (Trp) dans les aliments pour animaux (par exemple aliments complets et complémentaires, compléments alimentaires, matières premières, ingrédients et concentrés) et une méthode de dosage du tryptophane libre dans les substances pures du commerce et les prémélanges contenant plus de 2 % de tryptophane.
Elle ne fait pas la distinction entre les formes D et L.

Krma - Določevanje triptofana (ISO 13904:2016)

Ta mednarodni standard določa metodo za določevanje celotnega in prostega triptofana (Trp) v krmi (npr. polnovredna in dopolnilna krma, dodatna krma, surovine, sestavine in koncentrati) ter določevanje prostega triptofana v komercialnih čistih snoveh in premiksih, ki vsebujejo več kot 2 % triptofana.
Standard ne razlikuje med oblikama D in L.

General Information

• Status: Published
• Public Enquiry End Date: 30-Mar-2015
• Publication Date: 10-Apr-2016
• ICS: 65.120 - Animal feeding stuffs
• Technical Committee: KŽP - Agricultural food products
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 23-Mar-2016
• Due Date: 28-May-2016
• Completion Date: 11-Apr-2016
• Ref Project: EN ISO 13904:2016 - Animal feeding stuffs - Determination of tryptophan content (ISO 13904:2016)

Relations

• Replaces: SIST EN ISO 13904:2005 - Animal feeding stuffs - Determination of tryptophan content (ISO 13904:2005)
• Effective Date: 01-May-2016

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 13904:2016
01-maj-2016
1DGRPHãþD
SIST EN ISO 13904:2005
.UPD'RORþHYDQMHWULSWRIDQD,62
Animal feeding stuffs - Determination of tryptophan content (ISO 13904:2016)
Futtermittel - Bestimmung des Tryptophangehalts (ISO 13904:2016)
Aliments des animaux - Détermination de la teneur en tryptophane (ISO 13904:2016)
Ta slovenski standard je istoveten z: EN ISO 13904:2016
ICS:
65.120 Krmila Animal feeding stuffs
SIST EN ISO 13904:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13904:2016

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SIST EN ISO 13904:2016


EN ISO 13904
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2016
EUROPÄISCHE NORM
ICS 65.120 Supersedes EN ISO 13904:2005
English Version

Animal feeding stuffs - Determination of tryptophan
content (ISO 13904:2016)
Aliments des animaux - Dosage du tryptophane (ISO Futtermittel - Bestimmung des Tryptophangehalts (ISO
13904:2016) 13904:2016)
This European Standard was approved by CEN on 30 January 2016.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13904:2016 E
worldwide for CEN national Members.

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SIST EN ISO 13904:2016
EN ISO 13904:2016 (E)
Contents Page
European foreword . 3
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SIST EN ISO 13904:2016
EN ISO 13904:2016 (E)
European foreword
This document (EN ISO 13904:2016) 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 September 2016, and conflicting national standards
shall be withdrawn at the latest by September 2016.
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 13904:2005.
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,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 13904:2016 has been approved by CEN as EN ISO 13904:2016 without any modification.


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SIST EN ISO 13904:2016

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SIST EN ISO 13904:2016
INTERNATIONAL ISO
STANDARD 13904
Second edition
2016-02-15
Animal feeding stuffs —
Determination of tryptophan content
Aliments des animaux — Dosage du tryptophane
Reference number
ISO 13904:2016(E)
©
ISO 2016

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SIST EN ISO 13904:2016
ISO 13904:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
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