Home / Standards / GB 11067.2-89 GB 11067.2-89 Silver — Methods for chemical analysis — Determination of copper and gold contents by flame atomic absorption spectrometry 银化学分析方法 火焰原子吸收光谱法测定铜和金量 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