BS EN ISO 13904:2005
Animal feeding stuffs - Determination of tryptophan content

Standard No.

BS EN ISO 13904:2005

Release Date

2005

Published By

British Standards Institution (BSI)

Status

Be replaced 2016-03

Replace By

BS EN ISO 13904:2016

Latest

BS EN ISO 13904:2016

Replace

03/310944 DC:2003

Scope

ISO 13904:2005 describes the determination of the total and free tryptophan in feeding stuffs (e.g. complete and complementary feeds, supplementary feeds, raw materials, ingredients, premixtures and concentrates. It does not distinguish between D- and L-forms.

BS EN ISO 13904:2005 history

• 2016 BS EN ISO 13904:2016 Animal feeding stuffs. Determination of tryptophan content
• 2005 BS EN ISO 13904:2005 Animal feeding stuffs - Determination of tryptophan content