GB/T 1513-1979 Methods for determination of calcium oxide and magnesium oxide contents in manganese ores--Atomic absorption spectrophotometric method (English Version)
Determination of Calcium Oxide and Magnesium Oxide in Manganese Ore
GB/T 1513-1979 history
2006GB/T 1513-2006 Manganese ores. Determination of calcium and magnesium contents. Flame atomic absorption spectrometric method
1979GB/T 1513-1979 Methods for determination of calcium oxide and magnesium oxide contents in manganese ores--Atomic absorption spectrophotometric method