Specification for lac and shellac-Bleached lac
紫胶和虫胶规范 漂白紫胶
发布日期:
1997-08-15
给出了不溶于热酒精的物质、溶于水的物质、灰分和蜡含量不同的两个等级的要求。定义、颜色、椰子油、松香、游离氯含量、砷和铅含量测试都有规定。交叉引用:BS 410ISO 565ANSI Z 23.1NF X 11-504DIN 4188-1DIN 24041IS 460
Gives requirements for two grades differing in matter insoluble in hot alcohol, matter soluble in water, ash and wax content. Definitions, colour, copals, rosin, free chlorine content, arsenic and lead content tests are all specified.Cross References:BS 410ISO 565ANSI Z 23.1NF X 11-504DIN 4188-1DIN 24041IS 460