标准摘要
[中文适用范围]： 本标准规定了肥料中氨氮含量的测定方法。 该方法适用于所有氮肥，包括复合肥料，其中氮仅以铵盐或铵盐与硝酸盐的形式存在。 本标准不适用于含有尿素、单氰胺或其他有机含氮化合物的肥料。 [外文原描述]： ISO 25475:2016 specifies a method for the determination of the ammoniacal nitrogen content in fertilizers. The method is applicable to all nitrogenous fertilizers including compound fertilizers, in which nitrogen is found exclusively either in the form of ammonium salts or ammonium salts together with nitrates. ISO 25475:2016 is not applicable to fertilizers containing urea, cyanamide or other organic nitrogenous compounds.
英文名称Fertilizers — Determination of ammoniacal nitrogen