ISO 8215-1985 标准详情
- 标准号:ISO 8215-1985
- 中文标题:表面活性剂 洗衣粉 总二氧化硅含量的测定 重量法
- 英文标题:Surface active agents; Washing powders; Determination of total silica content; gravimetric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1985-12
From a test portion all ethanol-soluble matter is removed by extraction with ethanol. The solution of the ethanol-insoluble residue is treated with hydrochloric acid and evaporated to dryness. The residue is dissolved in water and the operations are
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