GB/T 16555-2017 Chemical analysis of refractories containing carbon and silicon carbide or nitride

GB/T 16555-2008 Chemical analysis of refractories containing carbon and silicon carbide or nitride

GB/T 16555-2025 Chemical analysis of refractories containing carbon,silicon carbide or nitride

GB/T 223.69-2008 Iron,steel and alloy—Determination of carbon contents—Gas-volumetric method after combustion in the pipe furnace GB/T 4513.2-2017 Monolithic(unshaped) refractory products—Part 2:Sampling for testing 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 6900-2006 Chemical analysis of alumina-silica refractories GB/T 6900-2016 Chemical analysis of alumina-silica refractories GB/T 6900-2025 Chemical analysis of alumino-silicate refractories GB/T 6900.1-1986 Fireclay and high-alumina refractories—Determination of loss content on ignition—Gravimetric method GB/T 6900.2-1986 Fireclay and high-alumina refractories—Determination of silicon dioxide content—Gravimetric-molybdenum blue photometric method GB/T 6900.3-1986 Fireclay and high-alumina refractories—Determination of iron oxide content—o-Phenanthroline photometric method GB/T 6900.4-1986 Fireclay and high-alumina refractories—Determination of aluminium oxide content—EDTA volumetric method GB/T 6900.5-1986 Fireclay and high-alumina refractories—Determination of titanium dioxide content—Hydrogen peroxide photometric method GB/T 6900.6-1986 Fireclay and high-alumina refractories—Determination of calcium oxide content—EDTA volumetric method GB/T 6900.7-1986 Fireclay and high-alumina refractories—Determination of magnesium oxide content—Xylidyl blue Ⅰ-CTAB photometric method GB/T 6900.8-1986 Fireclay and high-alumina refractories—Determination of calcium oxide and magnesium oxide content—Atomic absorption spectrophotometric method GB/T 6900.9-1986 Fireclay and high-alumina refractories—Determination of potassium oxide and sodium oxide content—Atomic absorption spectrophotometric method GB/T 6900.10-1986 Fireclay and high-alumina refractories—Determination of manganese oxide content—Ammonium persulfate photometric method GB/T 6900.11-1986 Fireclay and high-alumina refractories—Determination of phosphorous pentoxide content—Molybdenum blue photometric method GB/T 6901-2008 Chemical analysis of silica refractories GB/T 6901-2017 Chemical analysis of silica refractories GB/T 6901.1-2004 Chemical analysis of silica refractories—Part 1:Determination of loss on ignition-Gravmetric method GB/T 6901.2-2004 Chemical analysis of silica refractories—Part 2:Determination of silicon dioxide—Gravimetric-molybdenum blue photometric method GB/T 6901.3-2004 Chemical analysis of silica refractories—Part 3:Determination of silicon dioxide—Hydrofluoric acid gravimetric method GB/T 6901.4-2004 Chemical analysis of silica refractories—Part 4:Determination of iron oxide—o-Phenanthroline photometric method GB/T 6901.5-2004 Chemical analysis of silica refractories—Part 5:Determination of aluminium oxide—Chromazurol S photometric method GB/T 6901.6-2004 Chemical analysis of silica refractories—Part 6:Determination of aluminium oxide-EDTA volumetric method GB/T 6901.7-2004 Chemical analysis of silica refractories—Part 7:Determination of titanium dioxide—Diantipyrylmethane photometric method GB/T 6901.8-2004 Chemical analysis of silica refractories—Part 8:Determination of calcium oxide and magnesium oxide—Atomic absorption spectrophotometric method GB/T 6901.9-2004 Chemical analysis of silica refractories—Part 9:Determination of potassium oxide and sodium oxide-Atomic absorption spectrophotometric method GB/T 6901.10-2004 Chemical analysis of silica refractories—Part 10:Determination of manganese oxide—Atomic absorption spectrophotometric method GB/T 6901.11-2004 Chemical analysis of silica refractories—Part 11:Determination of phosphorus pentoxide—Molybdenum blue photometric method GB/T 7728-2021 Chemical analysis of metallurgical products—General rule for flame atomic absorption spectrometric methods GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 10325-2001 Shaped refractory products—Sampling and acceptance testing GB/T 10325-2012 Shaped refractory products—Rule of acceptance,sampling and inspection GB/T 12805-1991 Laboratory glassware—Burettes GB/T 12805-2011 Laboratory glassware—Burettes GB/T 12806-1991 Laboratory glassware—One-mark volumetric flasks GB/T 12806-2011 Laboratory glassware—One-mark volumetric flasks GB/T 12808-1991 Laboratory glassware—One-mark pipettes GB/T 12808-2015 Laboratory glassware—One mark pipettes GB/T 17617-1998 Refractory products—Sampling of raw materials and unshaped products GB/T 17617-2018 Rule of sampling and inspection for refractory raw materials GB/T 17732-1999 Dense, shaped refractory products—Test methods for products containing carbon GB/T 17732-2008 Dense,shaped refractory products—Test methods for products containing carbon GB/T 17732-2023 Determination of dense shaped refractory products containing carbon GB/T 18930-2002 Terminology for refractories GB/T 18930-2020 Terminology for refractories