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

Available format(s)

Hardcopy , PDF

Language(s)

Spanish, Castilian, English

Published date

13-07-2016

Publisher

Asociacion Espanola de Normalizacion

Foreword
1 Scope
2 Principle
3 Reagents and materials
4 Apparatus
5 Procedure
  5.1 Preparation of samples
  5.2 Determination of free tryptophan (extract)
  5.3 Determination of total tryptophan (hydrolysate)
  5.4 HPLC determination
6 Calculation of results
7 Precision
  7.1 Interlaboratory test
  7.2 Repeatability
  7.3 Reproducibility
8 Test report
Annex A (informative) Results of an interlaboratory test
Annex B (informative) Observations on the method
Bibliography

Explains the determination of the total and free tryptophan in feeding stuffs (e.g. complete and complementary feeds, supplementary feeds, raw materials, ingredients, premixtures and concentrates.

Committee	CTN 34
DocumentType	Standard
Pages	22
PublisherName	Asociacion Espanola de Normalizacion
Status	Current
Supersedes	UNE-EN ISO 13904:2005

Standards	Relationship
ISO 13904:2016	Identical
NF EN ISO 13904 : 2016	Identical
NBN EN ISO 13904 : 2016	Identical
NEN EN ISO 13904 : 2016	Identical
NS EN ISO 13904 : 2005	Identical
I.S. EN ISO 13904:2016	Identical
SN EN ISO 13904:2016	Identical
UNI EN ISO 13904 : 2005	Identical
BS EN ISO 13904:2016	Identical
EN ISO 13904:2016	Identical
DIN EN ISO 13904:2016-06	Identical