Home / Standards / GB 4699.2-84 GB 4699.2-84 Methods for chemical analysis of silicochromium — The alkaline fusion-ammonium persulfate oxidation volumetric method for the determination of chromium content 硅铬合金化学分析方法 碱熔-过硫酸铵氧化容量法 测定铬量 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A