GB/T 2272-2020 (English Version)

Scope: This standard specifies the designation method, technical requirements, test methods, inspection rules, judgment and re-inspection, packaging, storage and transportation, marking and quality certificate of ferrosilicon. This standard applies to ferrosilicon used as a deoxidizer and alloying agent in the iron and steel industry, as an inoculant and nodulizer in the foundry industry, and as a reducing agent in the magnesium industry and ferroalloy industry.

GB/T 2272-2020 Referenced Document

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
GB/T 4333.1 Ferrosilicon—Determination of silicon content—Perchloric acid dehydration gravimetric method and potassium fluosilicate volumetric method
GB/T 4333.2 Determination of ferrosilicon and phosphorus content bismuth phosphorus molybdenum blue spectrophotometry*， 2023-09-07 Update
GB/T 4333.3 Methods for chemical analysis of ferrosilicon--The potassium periodate photometric method for the determination of manganese content
ISO 4552-2:1987 Ferroalloys; Sampling and sample preparation for chemical analysis; Part 2 : Ferrotitanium, ferromolybdenum, ferrotungsten, ferroniobium, ferrovanadium