Home / Standards / GB/T 6987.2-2001 GB/T 6987.2-2001 Methods for chemical analysis of aluminium and aluminium alloys — Determination of copper content by oxalic acid-bismuthiol spectrophotometric method 铝 及 铝 合金化学分析方法 草酞-酞麟分光光度法测定铜量 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