Home / Standards / GB 5124.2-85 GB 5124.2-85 Methods for chemical analysis of cemented carbides — Determination of free carbon content by gravimetric method 硬质合金化学分析方法 重量法测定游离碳量 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