ISO 120-1977 标准详情
- 标准号:ISO 120-1977
- 中文标题:塑料 酚-醛模塑件 游离氨和铵化合物的测定 比色法
- 英文标题:Plastics; Phenol-formaldehyde mouldings; Determination of free ammonia and ammonium compounds; Colorimetric comparison method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1977-10
Specification of a semi-quantitative method. The content of free ammonia in a moulded article is of importance, when corrosion of metal inserts or contamination in contact with the article has to be considered. Distillation of the aqueous extract fro
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