GB/T 21114-2007: Translated English of Chinese Standard. (GBT 21114-2007, GB/T21114-2007, GBT21114-2007): Chemical analysis of refractory products by XRF - Fused cast bead method
This Standard specifies a method for chemical analysis of refractory products and materials, and technical ceramics composed of oxides, including the determination of oxide at levels between 0.01% and 99% by means of the XRF fused cast bead method. NOTE: Constituents at concentrations greater than 99% (on a dried basis) should be reported on by difference, provided that all likely minor constituents and any loss on ignition have been determined. These figures should also be checked by direct determination.
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Annex B Normative Corrections for tungsten carbide grinding media
Annex F Normative Equation for theoretical calculations
Informative Standard deviations achieved with certified reference
absorption correction coefficients Al2O3 Fe2O3 CaO alumina alumino-silicates Annex G Baosteel base component Al2O3 base component SiO2 basic calibration curve calculated Calibration standards CaO MgO Na2O Certificate certified reference material chrome co-existing component cobalt cobalt or nickel component SiO2 Al2O3 concentration corrected component SiO2 Correcting Analysis component CRMs dolomite ECRM element Fe2O3 CaO MgO Fe2O3 TiO2 MnO GB/T HfO2 JRRM Laboratory SiO2 TiO2 lithium tetraborate loss on ignition magnesia major oxide mass absorption correction matrix correction coefficients measured method MgO Na2O K2O minor constituents MnO CaO MgO nickel bonded NIST NOTE overlapping correction coefficient presumed basic calibration procedure ratio reagents refractory products Sample reproducibility Rh end-window Sample 1 Correcting scan type second base component SeRM series silica SiO2 TiO2 Al2O3 spectrometer spinel standard bead Standard deviations achieved Table TARJ unit theoretical mass absorption TiO2 CaO MgO TiO2 MnO CaO tungsten carbide www.ChineseStandard.net X-ray fluorescence Zircon zirconia ZrO2