YB/T 101-2005 Synthesized MgO-CaO-Fe2O3 material for EAF bottom

YB/T 101-2018 Electric furnace bottom with MgO-CaO-Fe2O3 system synthesis material

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 2007.7-1987 General rules for the sampling and sample preparation of minerals in bulk—The method for determination of size by manual sieving GB/T 2999-2002 Refractory materials—Determination of bulk density of granular materials GB/T 2999-2016 Refractory materials—Determination of bulk density of granular materials 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 5069.2-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—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 5069.7-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials—EDTA titrametric method for determination of aluminium 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 YB/T 5142 GB/T 2999-2025 Refractory materials—Determination of bulk density of granular materials