标准号:BS EN ISO 172-1998
中文标准名称:塑料.酚醛模塑件.游离氨的检验
英文标准名称:Plastics - Phenol-formaldehyde mouldings - Detection of free ammonia
标准类型:G31
发布日期:1980/4/30 12:00:00
实施日期:1980/4/30 12:00:00
中国标准分类号:G31
国际标准分类号:83.080.10;83.140.01;83.140.99
适用范围:This International Standard specifies 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 powdered sample. It may be used when the absence of free ammonia is a requirement.