GB/T 2275-2007 Magnesia and magnesia-alumina refractory bricks

GB/T 2275-2001 Magnesia refractory bricks

GB/T 2275-2017 Magnesia and magnesia-alumina bricks

GB/T 2992-1998 Dimensions of general bricks GB/T 2992.1-2011 Dimensions of refractory bricks— Part 1:Specification for general bricks GB/T 2992.2-2014 Dimensions of refractory bricks—Part 2:Terminology for shapes and brickworks of refractory bricks GB/T 2997-2000 Test method for bulk density, apparent porosity and true porosity of dense shaped refractory products GB/T 2997-2015 Test method for bulk density,apparent porosity and true porosity of dense shaped refractory products 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 5072.2-2004 Dense shaped refractory products—Determination of cold compressive strength—Part 2:Test with packing GB/T 5988-2004 Dense shaped refractory products—Determination of permanent changs in dimension on heating GB/T 5988-2007 Refractory products—Determination of permanent change in dimension on heating GB/T 5988-2022 Refractory products—Determination of permanent change in dimensions on heating GB/T 7320-2008 Refractories—Determination of thermal expansion GB/T 7320-2018 Refractories—Determination of thermal expansion GB/T 7320.1-2000 Refractory materials—Determination of thermal expansion—Push rod method GB/T 7320.2-2000 Refractory materials—Determination of thermal expansion(Telescope method) GB/T 7321-2004 Sample preparation for testing of shaped refractory products GB/T 7321-2017 Sample preparation for testing of shaped refractory products 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 10326-2001 Refractory products—Inspections of dimension appearance and section GB/T 10326-2016 Shaped refractory products inspections of dimension, appearance and section GB/T 16546-1996 Shaped refractory products—Packing, marking, transportation and storage GB/T 16546-2020 General rules for packing,marking,transport,storage and quality certificates of shaped refractory YB/T 370-1995 Test method for refractoriness under load of refractory products(non-differential,with rising temperature) YB/T 376.1-1995 Test method for thermal shock resistance of refractory products(Water quenching) YB/T 370-2016 The method of testing the weight-bearing softening temperature of refractory materials (non-differential-temperature-rise method)