Codes & Standards - Purchase
ISO 13904:2016
Animal feeding stuffs -- Determination of tryptophan content
SKU: iso_059955_159192
Published by ISO
Publication Year 2016
2 Edition
14 pages
Product Details
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.