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

GB/T 18931-2008 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 16555-2008 Chemical analysis of refractories containing carbon and silicon carbide or nitride GB/T 16555-2017 Chemical analysis of refractories containing carbon and silicon carbide or nitride GB/T 16555.1-1996 Chemical analysis for silicon carbide refractories—Determination of silicon carbide—Absorb gravimetric method GB/T 16555.2-1996 Chemical analysis for silicon carbide refractories—Determination of silicon carbide—Gas volumetric method GB/T 16555.3-1996 Chemical analysis for silicon carbide refractories—Determination of free silicon—Gas volumetric method GB/T 16555.4-1996 Chemical analysis for silicon carbide refractories—Determination of alumina—EDTA gas volumetric method GB/T 16555.5-1996 Chemical analysis for silicon carbide refractories—Determination of ferric oxide—o-phenanthroline photometric method GB/T 16555.6-1996 Chemical analysis for silicon carbide refractories—Determination of silicon dioxide GB/T 18930-2002 Terminology for refractories GB/T 18930-2020 Terminology for refractories GB/T 21114-2007 Chemical analysis of refractory products by XRF—Fused cast bead method GB/T 21114-2019 Refractories—Chemical analysis by X-ray fluorescence(XRF)—Fused cast-bead method GB/T 34332-2017 Chemical analysis of magnesite and dolomite refractory products GB/T 16555-2025 Chemical analysis of refractories containing carbon,silicon carbide or nitride

ISO 10081-2:2003