标准摘要
[中文适用范围]： 适用范围：该方法不适用于含尿素或其衍生物、氰胺或有机氮化合物的体系。 [外文原描述]： The method consists in distilling of the ammonia from an alkaline solution, absorbing in an excess of standard volumetric sulphuric acid solution and back-titrating with standard volumetric sodium hydroxide solution. It is applicable only in the absence of urea or its derivatives, of cyanamide and of organic nitrogenous compounds.
英文名称Fertilizers — Determination of ammoniacal nitrogen content — Titrimetric method after distillation