标准摘要
[中文适用范围]： 本国际标准规定了测试方法、取样和试样的制备标记和封装、以及控释肥料的包装、运输和储存要求。 本国际标准适用于含有一个或多个主要肥料养分（氮和/或磷和/或钾）并以受控释放形式存在的控释产品。它们可以通过混合配方肥料或特殊工艺制成。 [外文原描述]： ISO 18644:2016 specifies the requirements for testing methods, sampling and preparation of test sample, marking and labelling, as well as package, transport, and storage of controlled-release fertilizer. ISO 18644:2016 is applicable to controlled-release products having one or more primary fertilizer nutrient (nitrogen and/or phosphorous and/or potassium) in a controlled-release form. They can be made by bulk blending (BB) fertilizers or by special processes.
英文名称Fertilizers and soil conditioners — Controlled-release fertilizer — General requirements