GB/T 12690.5-2003 in English

本方法规定了稀土氧化物中氧化铝、氧化铬、氧化锰、氧化铁、氧化钴、氧化镍、氧化铜、氧化锌和氧化铅含量的测定方法。本方法适用于稀土氧化物中氧化铝、氧化铬、氧化锰、氧化铁、氧化钴、氧化镍、氧化铜、氧化锌和氧化铅量的测定。本方法也适用于稀土金属中金属铝、金属铬、金属锰、金属铁、金属钴、金属镍、金属铜、金属锌和金属铅的含量测定。

Scope

This method specifies the determination method for the content of aluminum oxide, chromium oxide, manganese oxide, iron oxide, cobalt oxide, nickel oxide, copper oxide, zinc oxide and lead oxide in rare earth oxides. This method is applicable to the determination of aluminum oxide, chromium oxide, manganese oxide, iron oxide, cobalt oxide, nickel oxide, copper oxide, zinc oxide and lead oxide in rare earth oxides. This method is also applicable to the content determination of metal aluminum, metal chromium, metal manganese, metal iron, metal cobalt, metal nickel, metal copper, metal zinc and metal lead in rare earth metals. Mass fraction of alumina: 0.0100% to 0.1000%; mass fraction of chromium oxide: 0.0050% to 0.1000%; mass fraction of manganese oxide: 0.0010% to 0.1000%; mass fraction of iron oxide: 0.0050% to 1.2000%; mass fraction of cobalt oxide: 0.0020 %～0.1000%; mass fraction of nickel oxide: 0.0050%～0.1000%; mass fraction of copper oxide: 0.0020%～0.1000%; mass fraction of zinc oxide: 0.0010%～0.1000%; mass fraction of lead oxide: 0.0050%～0.1000%.