ISO 1620-1976 标准详情
- 标准号:ISO 1620-1976
- 中文标题:天然和人造冰晶石 二氧化硅含量的测定 还原硅钼酸盐分光光度法
- 英文标题:Cryolite, natural and artificial; Determination of silica content; Reduced molybdosilicate spectrophotometric method
- 标准类别:国际标准化组织标准ISO
- 发布日期:1976-09
Specifies methods of test for natural and synthetic materials having a molar ratio sodium fluoride/aluminium trifluoride between 3 and 1,7 approximately. The method is applicable to products the phosphorus pentoxide content of which does not exceed 0
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