NBN EN ISO 13904:2016

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

ACTIVE

About this standard

Languages
German, English and French
Type
NBN
Standards committee
CEN/TC 327
Status
ACTIVE
Publication date
31 March 2016
Replaces
NBN EN ISO 13904:2005
ICS Code
65.120 (Animal feeding stuffs)
Withdrawn Date

About this training

Summary

ISO 13904:2016 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.