GB/T 12690.5-2003
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb content by inductively coupled plasma atomic emission spectrographic method and Determination of Co, Mn, Pb, (English Version)

Standard No.

GB/T 12690.5-2003

Language

Chinese, Available in English version

Release Date

2003

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2018-02

Replace By

GB/T 12690.5-2017

Latest

GB/T 12690.5-2017

Replace

GB/T 12690.19-1990 GB/T 12690.24-1990 GB/T 8762.4-1988 GB/T 8762.6-1988 GB/T 12690.14-1990

Scope

This method specifies the determination method for the content of aluminum oxide, chromium oxide, manganese oxide, iron oxide, cobalt oxide, nickel oxide, copper oxide, zinc oxide and lead oxide in rare earth oxides. This method is applicable to the determination of aluminum oxide, chromium oxide, manganese oxide, iron oxide, cobalt oxide, nickel oxide, copper oxide, zinc oxide and lead oxide in rare earth oxides. This method is also applicable to the content determination of metal aluminum, metal chromium, metal manganese, metal iron, metal cobalt, metal nickel, metal copper, metal zinc and metal lead in rare earth metals. Mass fraction of alumina: 0.0100% to 0.1000%; mass fraction of chromium oxide: 0.0050% to 0.1000%; mass fraction of manganese oxide: 0.0010% to 0.1000%; mass fraction of iron oxide: 0.0050% to 1.2000%; mass fraction of cobalt oxide: 0.0020 %～0.1000%; mass fraction of nickel oxide: 0.0050%～0.1000%; mass fraction of copper oxide: 0.0020%～0.1000%; mass fraction of zinc oxide: 0.0010%～0.1000%; mass fraction of lead oxide: 0.0050%～0.1000%.

GB/T 12690.5-2003 history

• 2017 GB/T 12690.5-2017 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides—Part 5: Determination of cobalt,manganese,lead,nickel,copper,zinc,aluminum,chromium,magnesium,cadmium,vanadium and iron contents
• 2003 GB/T 12690.5-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb content by inductively coupled plasma atomic emission spectrographic method and Determination of Co, Mn, Pb,
• 1990 GB/T 12690.5-1990 Praseodymium oxide--Determination of lanthanum oxide, cerium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--X ray fluorescence spectrometric method
• 0000 GB/T 8762.6-1988

GB/T 12690.5-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb content by inductively coupled plasma atomic emission spectrographic method and Determination of Co, Mn, Pb, has been changed from GB/T 12690.19-1990 Rare-earth metals and their oxides--Determination of iron content--1,10-phenanthroline spectrophotometric method.

GB/T 12690.5-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb content by inductively coupled plasma atomic emission spectrographic method and Determination of Co, Mn, Pb, has been changed from GB/T 12690.24-1990 Rare-earth metals and their oxides--Determination of aluminum content--Aluminum-chromazurol S-hexadecyl-trimethyl ammonium bromide-ethanol spectrophotometric method.

GB/T 12690.5-2003 Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides Determination of Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb content by inductively coupled plasma atomic emission spectrographic method and Determination of Co, Mn, Pb, has been changed from GB/T 12690.14-1990 Lanthanum oxide, cerium oxide, neodymium oxide, gadolinium oxide--Determination of cobalt, iron,manganese, nichel, copper, ckromium, lead and zinc in oxides contents--Emission spectrographic method.

GB/T 12690.5-2003 -All Parts