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Chinese Standard: GB/T 1819.12-2017

Methods for chemical analysis of tin concentrates—Part 12:Determination of silicon dioxide content—The silicomolybdenum blue spectrophotometry and sodium hydroxide titration

全国有色金属标准化技术委员会(SAC/TC 243)

GB/T  1819的本部分规定了锡精矿中二氧化硅量的测定。

本部分适用于锡精矿中二氧化硅量的测定方法。

方法1测定范围:0.10%~10.00%;

方法2测定范围:5.00%~20.00%。

测定范围重叠部分以方法2为仲裁分析方法。

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