GB/T 21114-2007 Chemical analysis of refractory products by XRF—Fused cast bead method

GB/T 21114-2019 Refractories—Chemical analysis by X-ray fluorescence(XRF)—Fused cast-bead method

GB/T 15000.7-2001 Directives for the work of reference materials(7)—General requirements for the competence of reference material producers ISO/IEC Directives(1992)—Part 2:Methodology for the development of International Standards—Annex B Mention of reference materials GB/T 3286.1-1998 Methods for chemical analysis of limestone and dolomite—The determination of calcium oxide and magnesium oxide content GB/T 3286.1-2012 Methods for chemical analysis of limestone and dolomite—Part 1:The determination of calcium oxide and magnesium oxide content—The complexometric titration method and the flame atomic absorption spectrometric method GB/T 3286.2-1998 Methods for chemical analysis of limestone and dolomite—The determination of silicon dioxide content GB/T 3286.2-2012 Methods for chemical analysis of limestone and dolomite—Part 2:The determination of silicon dioxide content—The silicomolybdic blue spectrophotometric method and the perchloric acid dehydration gravimetric method GB/T 3286.3-1998 Methods for chemical analysis of limestone and dolomite—The determination of aluminium oxide content GB/T 3286.3-2012 Methods for chemical analysis of limestone and dolomite—Part 3:The determination of aluminium oxide content—The chrome azurol S spectrophotometric method and the complexometric titration method GB/T 3286.4-1998 Methods for chemical analysis of limestone and dolomite—The determination of iron oxide content GB/T 3286.4-2012 Methods for chemical analysis of limestone and dolomite—Part 4:The determination of iron oxide content—The o-phenanthroline spectrophotometric method and the flame atomic absorption spectrometric method GB/T 3286.5-1998 Methods for chemical analysis of limestone and dolomite—The determination of manganese oxide content GB/T 3286.5-2014 Method for chemical analysis of limestone and dolomite—Part 5:The determination of manganese oxide content—The periodate oxidation spectrophotometric method GB/T 3286.6-1998 Methods for chemical analysis of limestone and dolomite—The determination of phosphorus content GB/T 3286.6-2014 Methods for chemical analysis of limestone and dolomite—Part 6:The determination of phosphorus content—The phosphomolybdate blue spectrophotometric method GB/T 3286.7-1998 Methods for chemical analysis of limestone and dolomite—The determination of sulphur content GB/T 3286.7-2014 Methods for chemical analysis of limestone and dolomite—Part 7:The determination of sulphur content—The pipe furnace combustion iodic acid potassium titration method，the high frequency combustion with infrared absorption method and the barium sulfate gravimetric method GB/T 3286.8-1998 Methods for chemical analysis of limestone and dolomite—The determination of loss on ignition GB/T 3286.8-2014 Method for chemical analysis of limestone and dolomite—Part 8:The determination of loss on ignition—The gravimetric method GB/T 3286.9-1998 Methods for chemical analysis of limestone and dolomite—The determination of carbon dioxide content GB/T 3286.9-2014 Method for chemical analysis of limestone and dolomite—Part 9:The determination of carbon dioxide content—The caustic asbestos absorption gravimetric method GB/T 3286.10-2020 Methods for chemical analysis of limestone and dolornite—Part 10:Determination of titanium dioxide content—Diantipyrylmethane spectrophotometric method GB/T 3286.11-2022 Methods for chemical analysis of limestone and dolomite—Part 11:Determination of calcium oxide,magnesium oxide,silicon dioxide,aluminium oxide and iron oxide content—Wavelength dispersive X-ray fluorescence spectrometry (Fused cast bead method) GB/T 3286.12-2023 Methods for chemical analysis of limestone and dolornite—Part 12:Determination of potassium oxide and sodium oxide contents—Flame atomic absorption spectrometry method GB/T 6005-1997 Test sieves—Metal wire cloth, perforated metal plate and electroformed sheet—Nominal sizes of opening GB/T 6005-2008 Test sieves—Metal wire cloth,perforated metal plate and electroformed sheet—Nominal sizes of openings 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 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 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 3286.2-2025 Methods for chemical analysis of limestone and dolomite—Part 2:Determination of silicon and aluminium content GB/T 6900-2025 Chemical analysis of alumino-silicate refractories

ISO 12677:2003