GB/T 2272-2020 Ferrosilicon

GB/T 2272-2009 Ferrosilicon

GB/T 3650-1995 The general rules for inspection、 packing、storing transportation、marking and certification of ferroalloy GB/T 3650-2008 The general rules for inspection,packing,storing,transportation,marking and certification of ferroalloy GB/T 4010-1994 Ferroalloys—Sampling and preparation of samples for chemical analysis GB/T 4010-2015 Ferroallys sampling and preparation of samples for chemical analysis GB/T 4333.1-2019 Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method GB/T 4333.2-2023 Ferrosilicon—Determination of phosphorus content—Bismuth phosphomolybdate blue spectrophotometric method GB/T 4333.4-2007 Ferrosilicon—Determination of aluminium content—The chromazurol S spectrophotometric method, the EDTA titrimetric method and the flame atomic absorption spectrometric method GB/T 4333.5-1997 Methods for chemical analysis of ferrosilicon-the EDTA volumetric method for the determination of aluminium content GB/T 4333.5-2016 Ferrosilicon—Determination of silicon,manganese,aluminium,calcium,chromium and iron contents—Wavelength dispersive X-ray fluorescence spectrometry(fused cast bead method) GB/T 4333.6-2019 Ferrosilicon—Determination of chromium content—Diphenylcarbazide spectrophotometric method GB/T 4333.7-2019 Ferrosilicon—Determination of sulfur content—Infrared absorption method and chromatographic separation-barium sulfate gravimetric method GB/T 4333.8-2022 Ferrosilicon—Determination of calcium content—Flame atomic absorption spectrometry GB/T 4333.10-1990 Methods for chemical analysis of ferrosilicon—The infrared absorption method for the determination of carbon content GB/T 4333.10-2019 Ferrosilicon—Determination of carbon content—Infrared absorption method GB/T 7738-2008 Notations for designation of ferroallys GB/T 13247-1991 Ferroalloys—Sampling and testing methods for determination of grain size GB/T 13247-2019 Methods for sampling and testing the grain size of ferroalloys products GB/T 24194-2009 Ferrosilicon—Determination of aluminium,calcium,manganese,chromium,titanium,copper,phosphorus and nickel content—Inductively coupled plasma atomic emission spectrometric method GB/T 24194-2024 Ferrosilicon—Determination of multi-element contents—Inductively coupled plasma atomic emission spectrometric method YB/T 4462-2015 The determination of high purity iron-silicon with boron content by inductively coupled plasma atomic emission spectroscopy GB/T 4333.1-1984 Methods for chemical analysis of ferrosilicon--The perchloric acid dehydration-gravimetric method for the determination of silicon content GB/T 4333.2-1988 Methods for chemical analysisof ferrosilicon--The reduced molybdobismuthylphosphoric acid photometric method for the determination of phosphorus content GB/T 4333.3-1988 Methods for chemical analysisof ferrosilicon--The potassium periodate photometric method for the determination of manganese content GB/T 4333.6-1988 Methods for chemical analysis of ferrosilicon--The diphenylcarbazide photometric method for the determination of chromium content GB/T 4333.7-1984 Methods for chemical analysis of ferrosilicon--The chromatographic separation-barium sulfate gravimetric method for the determination of sulfur content GB/T 4333.8-1988 Methods for chemical analysis of ferrosilicon--The atomic absorption spectrometric method for the determination of calcium content GB/T 7738-1987 Notations for designation of ferroalloys

ISO 5445:1980