Standards GB - Chinese national standards - Page 5759

Rare-earth metals and their oxides--Determination of aluminum content--Aluminum-chromazurol S-hexadecyl-trimethyl ammonium bromide-ethanol spectrophotometric method

WITHDRAWN published on 1.1.1990

Rare-earth metals and their oxides--Determination of magnesium content--Flame atomic absorption spectrometric method

WITHDRAWN published on 1.1.1990

Rare-earth metals and their oxides--Determination of sodium content--Flame atomic absorption spectrometric method

WITHDRAWN published on 1.1.1990

Rare-earth metals and their oxides--Determination of ignition loss--Gravimetric method

WITHDRAWN published on 1.1.1990

Rare earth metals and their oxide—Determination of calcium oxide content—Inductively coupled plasma atomic emission spectrographic method

WITHDRAWN published on 5.6.2000

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

WITHDRAWN published on 5.6.2000

Cerium and cerium oxide--Determination of lanthanum oxide, praseodymium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Emission spectrographic method

WITHDRAWN published on 1.1.1990

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

WITHDRAWN published on 19.11.2002

Cerium oxide--Determination of lanthanum oxide, praseodymium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--Spectrochemical method

WITHDRAWN published on 1.1.1990

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of oxygen and nitrogen content—Impulse-infrared and impulse-thermal conductance absorption method

WITHDRAWN published on 18.11.2003