Home / Standards / GB/T 15057.4-1994 GB/T 15057.4-1994 Active Limestone for chemical industry--Determination of iron and aluminium oxides content--Gravimetric method 化工用石灰石中三氧化二物含量的测定 重量法 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