ISO 172:1978 塑料.酚-甲醛模塑.游离氨的检验

标准编号：ISO 172:1978

中文名称：塑料.酚-甲醛模塑.游离氨的检验

英文名称：Plastics — Phenol-formaldehyde mouldings — Detection of free ammonia

发布日期：1978-08

标准范围

通过将指示纸暴露于湿润粉末样品的蒸汽中检测酚醛模塑件中游离氨或其他挥发性碱的定性方法规范。当要求不含游离氨时，可使用。

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.

标准预览图