Animal feeding stuffs - Determination of nitrogen content and calculation of crude protein content - Part 1: Kjeldahl method (ISO 5983-1:2005 + Cor 1:2008) (consolidated version)
Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2013); German version EN ISO 20483:2013— 20 стр.
Cereals and pulses - Determination of the nitrogen content and calculation of the crude protein content - Kjeldahl method (ISO 20483:2006); German version EN ISO 20483:2006— 19 стр.
Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014); German and English version FprEN ISO 14244:2015— 12 стр.
