ISO 1952-1976 标准详情
- 标准号:ISO 1952-1976
- 中文标题:褐煤.测定稀盐酸中可溶钠和钾的萃取方法
- 英文标题:brown coals and lignites-method of extraction for the determination of sodium and potassium soluble in dilute hydrochloric acid
- 标准类别:国际标准化组织标准ISO
- 发布日期:1976-06-15
The sample of brown coal or lignite is extracted with boiling 0,005 N hydrochloric acid and the extract centrifuged. The sodium and potassium in solution are determined by any precise analytical method (for example, gravimetric method or flame photom
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