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EVS-EN ISO 13904:2016

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

General information
Valid from 04.04.2016
Base Documents
ISO 13904:2016; EN ISO 13904:2016
Directives or regulations
None
Standard history
Status
Date
Type
Name
04.04.2016
Main
06.07.2005
Main
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.
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Standard monitoring