Home / Standards / GB/T 4700.5-1998 GB/T 4700.5-1998 Methods for chemical analysis of calcium silicon alloy — Determination of carbon content by infrared absorption method 硅钙合金化学分析方法 红外线吸收法测定碳量 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A