GB/T 12690.24-1990
稀土金属及其氧化物化学分析方法 AL-CAS-CTMAB- 乙醇四元体系分光光度法测定铝量
Rare-earth metals and their oxides--Determination of aluminum content--Aluminum-chromazurol S-hexadecyl-trimethyl ammonium bromide-ethanol spectrophotometric method
GBT12690.24-1990, GB12690.24-1990