GB/T 18931-2008 Classification of basic dense shaped refractory products containing less than 7% residual carbon

GB/T 18931-2002 Classification of basic refractory products containing less than 7% residual carbon

GB/T 18931-2022 Classification of basic dense shaped refractory products containing less than 7% residual carbon

GB/T 4984-1985 Chemical analysis methods of zirconia-alumina refractories GB/T 4984-2007 Chemical analysis of refractories containing zirconia GB/T 4984-2023 Chemical analysis of refractories containing zirconia GB/T 5069-2007 Chemical analysis of magnesia-alumina refractories GB/T 5069-2015 Chemical analysis of magnesia-alumina refractories GB/T 5069-2024 Chemical analysis of magnesia-alumina refractories GB/T 5069.1-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Gravimetric method for determination of loss on ignition GB/T 5069.2-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Molybdenum blue photometric method for determination of silicon dioxide content GB/T 5069.3-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Gravimetric-molybdenum blue photometric method for determination of silicon dioxide content GB/T 5069.4-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Ortho-phenanthroline photometric method for determination of iron oxide content GB/T 5069.5-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Flame atomic absorption spectrometric method for determination of iron oxide content GB/T 5069.6-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Chromazurol S photometric method for determination of aluminium oxide content GB/T 5069.7-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—EDTA titrametric method for determination of aluminium oxide content GB/T 5069.8-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Diantipyrylmethane photometric method for determination of titanium dioxide content GB/T 5069.9-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Hydrogen peroxide photometric method for determination of titanium dioxide content GB/T 5069.10-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Flame atomic absorption spectrometric method for determination of calcium oxide content GB/T 5069.11-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Complexometric titration method for determination of calcium oxide and magnesium oxide content GB/T 5069.12-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Flame atomic absorption spectrometric method for determination of manganese oxide content GB/T 5069.13-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—Flame atomic absorption spectrometric method for determination of potassium oxide and sodium oxide content GB/T 5070-2007 Chemical analysis of refractories containing chrome GB/T 5070-2015 Chemical analysis of refractories containing chrome GB/T 5070.1-2002 Chemical analysis of magnesia chromite refractories—Part 1:Determination of loss on ignition—Gravimetric method GB/T 5070.2-2002 Chemical analysis of magnesia chromite refractories—Part 2:Determination of silicon dioxide—Molybdenum blue photometric method GB/T 5070.3-2002 Chemical analysis of magnesia chromite refractories—Part 3:Determination of iron oxide—O-phenanthroline photometric method GB/T 5070.4-2002 Chemical analysis of magnesia chromite refractories—Part 4:Determination of aluminium oxide—EDTA volumetric method GB/T 5070.5-2002 Chemical analysis of magnesia chromite refractories—Part 5:Determination of titanium dioxide—Diantipylmethane photometric method GB/T 5070.6-2002 Chemical analysis of magnesia chromite refractories—Part 6:Determination of calcium oxide—EGTA volumetric method GB/T 5070.7-2002 Chemical analysis of magnesia chromite refractories—Part 7:Determination of calcium oxide—EDTA volumetric method GB/T 5070.8-2002 Chemical analysis of magnesia chromite refractories—Part 8:Determination of magnesium oxide—CyDTA volumetric method GB/T 5070.9-2002 Chemical analysis of magnesia chromite refractories—Part 9:Determination of magnesium oxide—EDTA volumetric method GB/T 5070.10-2002 Chemical analysis of magnesia chromite refractories—Part 10:Determination of chromium oxide—Ammonium ferrous sulfate volumetric method GB/T 5070.11-2002 Chemical analysis of magnesia chromite refractories—Part 11:Determination of manganese oxide—Atomic absorption spectrophotometric method GB/T 5070.12-2002 Chemical analysis of magnesia chromite refractories—Part 12:Determination of potassium oxide and sodium oxide—Atomic absorption spectrophotometric method GB/T 13245-1991 Chemical analysis method of refractories containing carbon—Determination of the total carbon—Combustion gravimetric method

ISO 10081-2:2003