Standards GB - Chinese national standards - Page 223

Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides - Part 16: Determination of fluorine content - Ion selective electrode analysis

Standard published on 14.1.2011

Chemical analysis methods of non-rare earth impurities in rare earth metals and the oxides - Part 17Determination of niobium and tantalum contents of rare earth metals

Standard published on 14.1.2011

Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides— Part 18: Determination of zirconium content

Standard published on 14.10.2017

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 19: Determination of arsenic and mercury contents

Standard published on 17.9.2018

Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 2: Determination of ignition loss content of rare earth oxides—Gravimetric method

Standard published on 11.9.2015

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 20: Determination of minor amounts of fluorine and chlorine in rare earth oxides—Ion chromatography method

Standard published on 28.11.2024

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 21Determination of sulfate radical content in rare earth oxides—Barium sulfate turbidimetry

Standard published on 26.10.2024

Rare earth metals and their oxide--Determination of cerium oxide content--Fluorescent spectrophoto-metric method

Standard published on 5.6.2000

Chemical analysis methods for non-rare earth impurity of rare earth metals and their oxides—Part 3: Determination of water content of rare earth oxides—Gravimetric method

Standard published on 11.9.2015

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 4: Determination of oxygen and nitrogen contents—Impulse-infrared absorption and impulse-thermal conductivity method

Standard published on 11.10.2021