GB/T 14635.3-1993 Chemical analysis methods for rare earth metals and their compounds - EDTA titration method for determination of total rare earth content in heavy rare earth metals and their compounds
Basic Information
Standard ID:
GB/T 14635.3-1993
Standard Name: Chemical analysis methods for rare earth metals and their compounds - EDTA titration method for determination of total rare earth content in heavy rare earth metals and their compounds
Chinese Name:
稀土金属及其化合物化学分析方法 EDTA滴定法测定重稀土金属及其化合物中稀土总量
Standard category:National Standard (GB)
state:Abolished
Date of Release1993-09-15
Date of Implementation:1994-06-01
Date of Expiration:2008-12-01
standard classification number
Standard ICS number:Metallurgy>>Non-ferrous metals>>77.120.70 Cadmium, cobalt and their alloys
Standard Classification Number:Metallurgy>>Metal Chemical Analysis Methods>>H14 Analysis Methods for Rare Metals and Their Alloys
Publication information
other information
Release date:1993-09-15
Review date:2004-10-14
Drafting unit:Shanghai Yuelong Nonferrous Metals Co., Ltd.
Focal point unit:National Rare Earth Standardization Technical Committee
Publishing department:State Bureau of Technical Supervision
competent authority:National Development and Reform Commission
Introduction to standards:
This standard specifies the determination method for the total content of rare earth elements in mixed rare earth metals with heavy rare earth holmium, erbium, thulium, ytterbium and lutetium as the main components and the total content of rare earth oxides in their compounds (oxides, hydroxides, fluorides and chlorides). This standard is applicable to the determination of the total content of rare earth elements in mixed rare earth metals with heavy rare earth holmium, erbium, thulium, ytterbium and lutetium as the main components and the total content of rare earth oxides in their compounds (oxides, hydroxides, fluorides and chlorides). GB/T 14635.3-1993 Chemical analysis methods for rare earth metals and their compounds EDTA titration method for determination of the total amount of rare earth in heavy rare earth metals and their compounds GB/T14635.3-1993 Standard download decompression password: www.bzxz.net