Animal feeding stuffs - Determination of lysine, methionine and threonine in commercial amino acid products and premixtures (ISO 17180:2013); German version EN ISO 17180:2013— 16 стр.
Animal feeding stuffs - Determination of lysine, methionine and threonine in commercial amino acid products and premixtures (ISO/DIS 17180:2011); German version prEN ISO 17180:2011