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ISO 13904:2016

Animal feeding stuffs — Determination of tryptophan content

Standard 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.

General Information

Status : Published
Standard Type: Main
Document No: ISO 13904:2016
Document Year: 2016
Pages: 14
Edition: 2
  • ICS:
  • 65.120 Animal feeding stuffs

Life Cycle

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ISO 13904:2016
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