ISO 19670:2017规定了固体脲醛缓释肥料的一般要求、分析方法、试样的取样和制备、标记和标签、包装、运输和储存。 ISO 19670:2017适用于纯固体脲醛缓释肥料，即脲醛（UF）、亚甲基脲（MU）、巴豆酰二脲（CDU）、异丁烯酰二脲（IBDU）。本文件不适用于含有固体脲醛缓释肥料的氮肥混合物。

ISO 19670:2017 specifies general requirements, analytical methods, sampling and preparation of test sample, marking and labelling, packaging, transport and storage for solid urea aldehyde slow release fertilizer. ISO 19670:2017 applies to pure solid urea aldehyde slow release fertilizer, i.e. urea formaldehyde (UF), methylene urea (MU), crotonylidene diurea (CDU), isobutylidene diurea (IBDU). This document does not apply to mixtures of nitrogenous fertilizers containing solid urea aldehyde slow release fertilizer.