Home / Standards / GB 4702.9-85 GB 4702.9-85 Chemical analysis of chromium metal — Determination of antimony content by crystal violet spectrophotometric method 金属铬化学分析方法 结晶紫分光光度法测定锑量 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