GB/T 3286.2-2012Methods for chemical analysis of limestone and dolomite - Part 2: The determination of silicon dioxide content - The silicomolybdic blue spectrophotometric method and the perchloric acid dehydration gravimetric method (English PDF)

GB/T 3286.2-2012 is the English-translated version of 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.

GB/T 3286.2-2012 is the Chinese national standard "Methods for chemical analysis of limestone and dolomite - Part 2: The determination of silicon dioxide content - The silicomolybdic blue spectrophotometric method and the perchloric acid dehydration gravimetric method".

It was issued on November 5, 2012 by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of China, and took effect on May 1, 2013. It is obsolete: it has been replaced by GB/T 3286.2-2025.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.

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