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Chinese National Standard Category: Rare metals and their alloys analysis method

English Title: Rare-earth metals and their oxides--Determination of magnesium content--Flame atomic absorption spectrometric method
Chinese Title: 稀土金属及其氧化物化学分析方法 火焰原子吸收光谱法测定镁量
Standard No.: GB/T 12690.25-1990
Category No.: H14
Issued by:
Issued on: 1990-12-30
Implemented on: 1992-1-1
Status: superseded
Superseded by:GB/T 12690.11-2003 Terbium oxide-Determination of lanthanum oxide,cerium oxide,praseodymium oxide,neodymium oxide,sama
Superseded on:2004-6-1
Abolished on:2004-06-01
Superseding:YB 1509-1977
Word Count:1500 words
Similar Standards: YS/T 230.1-1994   YS/T 230.3-1994   GB/T 16480.1-1996   YS/T 230.5-1994   GB/T 16480.4-1996   YS/T 230.6-1994   GB/T 18115.7-2000   GB/T 18115.10-2000   YS/T 230.2-1994   GB 11074.2-1989   YS/T 230.7-1994   GB/T 18115.8-2000   GB/T 18116.2-2000   YB 1503-1977   GB/T 18115.2-2000   YS/T 474-2005   GB/T 18115.6-2000   GB/T 18115.5-2000   GB/T 18115.4-2000   YS/T 230.4-1994  
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