Specifies a method for the determination of nitrogen content of animal feeding stuffs according to the Kjeldahl method, and a method for the calculation of the crude protein content..
Specifies a calibration method and a standard additional method for the determination of the potassium and sodium content of animal feeding stuffs by flame-emission spectrometry..
Specifies a method for the determination of the soluble nitrogen content of animal feeding stuffs after treatment with pepsin in dilute hydrochloric acid..