GB/T 2994-2008 High alumina refractory mortars

GB/T 2994-1994 High alumina refractory mortars

GB/T 2994-2021 High alumina refractory mortars

GB/T 6900-2006 Chemical analysis of alumina-silica refractories GB/T 6900-2016 Chemical analysis of alumina-silica 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 7322-1997 Test method for pyrometric cone equivalent(refractoriness) of refractories GB/T 7322-2007 Refractory products—Determination of pyrometric cone equivalent (refractoriness) GB/T 7322-2017 Refractory products—Determination of refractoriness GB/T 15545-1995 Unshaped refractory—Packing, marking, transportation and storage GB/T 15545-2020 General rules for packing,marking,transport,storage and quality certificates of unshaped refractory 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 22459.3-2008 Refractory mortars—Part 3:Determination of joint stability GB/T 22459.3-2021 Refractory mortars—Part 3:Determination of joint stability GB/T 22459.4-2008 Refractory mortars—Part 4:Determination of flexural bonding strength GB/T 22459.4-2022 Refractory mortars—Part 4:Determination of flexural bonding strength GB/T 22459.5-2008 Refractory mortars—Part 5:Determination of grain size distribution(sieve analysis) GB/T 22459.5-2022 Refractory mortars—Part 5:Determination of grain size distribution(sieve analysis) GB/T 22459.7-2008 Refractory mortars—Part 7:Determination of properties at elevated temperatures GB/T 22459.7-2019 Refractory mortars—Part 7:Determination of other properties GB/T 6900-2025 Chemical analysis of alumino-silicate refractories