Standard NBN EN ISO 13904:2016

Animal feeding stuffs - Determination of tryptophan content (ISO 13904:2016)
Status
:
Active
Publication date
:
3/2016
Languages
:
EN/FR/DE
ICS
:
65.120 Animal feeding stuffs
Summary :
ISO 13904:2016 specifies a method for determination of the total and free tryptophan (Tr
p) content in feeding stuffs (e.g. complete and complementary feeds, supplementary feeds, raw materials, ingredients, and concentrate
s) 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.
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