BS EN ISO 120-1998 塑料.苯酚-甲醛模塑料.游离氨和铵化合物的测定.比色法

标准号：BS EN ISO 120-1998
中文标准名称：塑料.苯酚-甲醛模塑料.游离氨和铵化合物的测定.比色法
英文标准名称：Plastics - Phenol-formaldehyde mouldings - Determination of free ammonia and ammonium compounds - Colorimetric comparison method
标准类型：G31
发布日期：1978/6/30 12:00:00
实施日期：1978/6/30 12:00:00
中国标准分类号：G31
国际标准分类号：83.080.10;83.140.99
适用范围：This International Standard specifies a colorimetric comparison method for the semi-quantitative determination of the amount of ammonia in phenol-formaldehyde mouldings. NOTE - This International Standard does not provide an absolute measure of the ammonia present. The amount of ammonia in a moulded article is of importance when corrosion of metal inserts or contami-nation of foodstuffs in contact with the article has to be considered.