SN EN ISO 13904:2016
Current
The latest, up-to-date edition.
ANIMAL FEEDING STUFFS - DETERMINATION OF TRYPTOPHAN CONTENT (ISO 13904:2016)
Hardcopy
06-01-2016
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.
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