标准摘要
[中文适用范围]： 通过将试纸暴露于潮湿粉末样品的蒸气来检测苯酚甲醛模制品中是否存在游离氨或其他挥发性碱的定性方法规范。 当需要不含游离氨时可以使用它。 [外文原描述]： Specification of a qualitative method of detecting the presence of free ammonia or other volatile bases in phenol-formaldehyde mouldings by the exposure of an indicator paper to the vapour from a moistened powdered sample. It may be used when the absence of free ammonia is a requirement.
英文名称Plastics — Phenol-formaldehyde mouldings — Detection of free ammonia