Normy GB - Čínské národní normy - strana 5989

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

NEPLATNÁ vydaná dňa 1.1.1990

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

NEPLATNÁ vydaná dňa 1.1.1990

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

NEPLATNÁ vydaná dňa 5.6.2000

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

NEPLATNÁ vydaná dňa 5.6.2000

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

NEPLATNÁ vydaná dňa 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

NEPLATNÁ vydaná dňa 19.11.2002

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

NEPLATNÁ vydaná dňa 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

NEPLATNÁ vydaná dňa 18.11.2003

Praseodymium oxide--Determination of lanthanum oxide, cerium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--X ray fluorescence spectrometric method

NEPLATNÁ vydaná dňa 1.1.1990

Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Determination of AlCrMnFeCoNiCuZnPb content by inductively coupled plasma atomic emission spectrographic method and Determination of CoMnPbNiCuZnAlCr content by inductively coupled plasma mass spectrum method

NEPLATNÁ vydaná dňa 18.11.2003