Home / Standards / GB/T 15057.2-1994 GB/T 15057.2-1994 Active Limestone for chemical industry--Determination of calcium and magnesium oxides content 化工用石灰石中氧化钙和氧化镁含量的测定 Standard Type GBT ICS 73.080 CCS D51 Status 现行 Issue Date 1994-05-05 Implementation 1995-02-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A