Home / Standards / GB 11222.1-89 GB 11222.1-89 Radiochemical analysis of strontium-90 in ash of biological samples — Di-ester extraction chromatography method 生物样品灰中锶-90的放射化学分析方法 二-磷酸酯萃取色层法 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