Home / Standards / GB 4699.6-88 GB 4699.6-88 Methods for chemical analysis of silicon-chromium alloy — Determination of sulfur content by infrared absorption method 硅铬合金化学分析方法 红外线吸收法测定硫量 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