ISO 2485-1973 标准详情
- 标准号:ISO 2485-1973
- 中文标题:工业用硫酸钾;钾含量测定;四苯基硼酸钾重量分析法
- 英文标题:potassium sulphate for industrial use; determination of potassium content; gravimetric method as potassium tetraphenylborate
- 标准类别:国际标准化组织标准ISO
- 发布日期:1973-04-01
Dissolution of a test portion taken from the laboratory sample, previosly ground and sifted. Addition of formaldehyde to transform any ammonium ions present into hexamethylenetetramine and of the disodium salt of ethylenediamin tetra-acetic acid to c
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