GB/T 22589-2008 Magnesia carbon brick

GB/T 22589-2017 Magnesia carbon 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 3002-1982 Test method for modulus of rupture of refractory products at elevated temperatures GB/T 3002-2004 Refractory products—Determination of modulus of rupture at elevated temperatures GB/T 3002-2017 Refractory products—Determination of modulus of rupture at elevated temperatures GB/T 5072-2008 Refractories—Determination of cold compressive strength GB/T 5072-2023 Refractory products—Determination of cold compressive strength GB/T 5072.1-1998 Dense, shaped refractory products—Determination of cold compressive strength—Part 1:Referee test without packing GB/T 5072.2-2004 Dense shaped refractory products—Determination of cold compressive strength—Part 2:Test with packing 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 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 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 16555-2025 Chemical analysis of refractories containing carbon,silicon carbide or nitride