Animal feeding stuffs. Determination of tryptophan content

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-03-2016

Publisher

British Standards Institution

Foreword
1 Scope
2 Principle
3 Reagents and materials
4 Apparatus
5 Procedure
6 Calculation of results
7 Precision
8 Test report
Annex A (informative) - Results of an interlaboratory test
Annex B (informative) - Observations on the method
Annex C (informative) - Sample preparation: Example for
        analyses in pure products and premixtures
Annex D (informative) - Results of an interlaboratory test for
        tryptophan in pure products and premixtures containing
        more than 2% of tryptophan
Bibliography

Describes 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.

Committee	AW/10
DevelopmentNote	Supersedes 03/310944 DC. (06/2005) Supersedes 14/30290719 DC. (03/2016)
DocumentType	Standard
Pages	24
PublisherName	British Standards Institution
Status	Current
Supersedes	03/310944 DC : DRAFT JULY 2003 BS EN ISO 13904:2005 14/30290719 DC : 0

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