标 准 编 号:BS ISO 21687-2007 简体中文标题:铝生产用含碳材料.以氮作为分析气体的气体比重测量法(测定体积的)测定密度.固体材料 繁体中文标题:铝生产用含碳材料.以氮作为分析气体的气体比重测量法(测定体积的)测定密度.固体材料 English Name:Carbonaceous materials used in the production of aluminium - Determination of density by gas pyknometry (volumetric) using helium as the analysis gas - Solid materials