ISO 5440-1978 标准详情
- 标准号:ISO 5440-1978
- 中文标题:工业用六氟硅酸钠.磷酸盐含量的测定.钒钼酸盐分光光度法
- 英文标题:sodium hexafluorosilicate for industrial use; determination of phosphate content; molybdovanadate spectrophotometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1978-10-01
Applicable to products having contents, expressed as phosphorus pentoxide, of 0.005 % (m/m) to 0.05 % (m/m). The residue from the determination of the loss of mass according to ISO 5444 is used to prepare the test sample. Dissolution in dilute hydroc
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