YB/T 4247-2011 (English Version) PDF

Scope: This standard specifies the technical requirements, test methods, inspection rules, packaging, storage and transportation, marking and quality certificates for low phosphorus ferrovanadium. This standard is applicable to the smelting of special steel, low alloy steel, micro-alloyed steel and low-phosphorus ferrovanadium as a vanadium element additive in cast iron or alloy materials.

YB/T 4247-2011 Referenced Document

GB/T 13247 Methods for sampling and testing the grain size of ferroalloys products*， 2019-10-18 Update
GB/T 3650 The general rules for inspection,packing,storing,transportation,marking and certification of ferroalloy
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*， 2015-09-11 Update
GB/T 8704.1 Ferrovanadium-Determination of carbon content-The infrared absorption method and the gasometric method
GB/T 8704.3 Ferrovanadium.Determination of sulfur content.The infrared absorption method and the combustion-neutralization titration method
GB/T 8704.5 Ferrovanadium—Determination of vanadium content—The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method*， 2020-06-02 Update
GB/T 8704.6 Ferrovanadium—Determination of silicon content—The sulfuric acid dehydration gralimetric method and the silicomolybdic blue photometric method*， 2020-06-02 Update
GB/T 8704.7 Ferrovanadium.Determination of phosphorus content.The molybdenum blue photometric method
GB/T 8704.8 Ferrovanadium.Determination of aluminium content.The chromazurol S spectrophotometric method and EDTA titrimetric method
GB/T 8704.9 Ferrovanadium.Determination of manganese content.The potassium periodate oxidation photometric method and flame atomic absorption spectrometric method