GB/T 15072.18-2008 贵金属合金化学分析方法 金合金中锆和镓量的测定 电感耦合等离子体原子发射光谱法 Test method of precious metal alloys - Determination of zirconium and gadolinium contents for gold alloys - Inductively coupled plasma atomic emission spectrometry
Test method of precious metal alloys - Determination of zirconium and gadolinium contents for gold alloys - Inductively coupled plasma atomic emission spectrometry