GB/T 3286.2-2012 in English

《GB/T 3286.2-2012石灰石及白云石化学分析方法 第2部分：二氧化硅含量的测定 硅钼蓝分光光度法和高氯酸脱水重量法》由TC183（全国钢标准化技术委员会）归口，TC183SC17（全国钢标准化技术委员会冶金非金属矿产品分会）执行，主管部门为中国钢铁工业协会。

Scope

Personnel using this section should have formal laboratory work experience. This section does not point out all possible safety issues, the user is responsible for taking appropriate safety and health measures, and ensuring compliance with the conditions stipulated in the relevant national laws and regulations. This part of GB/T 3286 specifies the determination of silicon dioxide content by silicon molybdenum blue spectrophotometry and perchloric acid dehydration gravimetric method. This section applies to the determination of silica content in limestone and dolomite, and also applies to the determination of silica content in metallurgical lime. Molybdenum blue spectrophotometry, measuring range (mass fraction): silica content 0.05% to 4.0%; perchloric acid dehydration gravimetric method, measuring range (mass fraction): silica content greater than 2.0%.