ISO 3138-1974 标准详情
- 标准号:ISO 3138-1974
- 中文标题:工业用无水氟化氢;非挥发性算含量测定;滴定测量法
- 英文标题:anhydrous hydrogen fluoride for industrial use; determination of non-volatile acid content; titrimetric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1974-12-15
Applicable to contents of between 0.005 % (m/m) and 0.3 % (m/m) expressed in sulphuric acid. Preparation of the samples according to ISO 3137. Removal of volatile acids by evaporation and titration of the remaining acidity with standard volumetric so
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