GB/T 21236-2007
Silica fume from electric-furnace (English Version)

Standard No.

GB/T 21236-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 21236-2007

Scope

This standard stipulates the brand name, technical requirements, test methods, inspection rules, packaging, marking, storage, transportation and quality certificate of silica powder products. This standard applies to the production of ferrosilicon and industrial silicon. After the silicon-containing gas collected by the fume hood of the electric furnace is oxidized and condensed, the silicon dioxide micropowder collected by the dry dust collection device is called " Electric furnace recovery of silica powder", referred to as "silicon dioxide powder" (commonly known as "silica fume").

GB/T 21236-2007 Referenced Document

• GB/T 14506.11-1993 Sillicate rocks. Determination of potassium oxide and sodium oxide
• GB/T 14506.5-1993 Sillicate rocks. Determination of iron oxide
• GB/T 16555.1-1996 Chemical analysis for silicon carbide refractories--Determination of silicon carbide--Absorb gravimetric method
• GB/T 16555.2-1996 Chemical analysis for silicon carbide refractories--Determination of silicon carbide--Gas volumetric method
• GB/T 18736-2002 Mineral admixtures for high strength and high performance concrete
• GB/T 19587 Determination of the specific surface area of solids by gas adsorption using the BET method*， 2017-09-29 Update
• GB/T 3007 Refractory products—Determination of moisture content*， 2017-09-07 Update
• GB/T 6901.1 Chemical analysis of silica refractories-Part 1:Determination of loss on ignition-Gravmetric method
• GB/T 6901.2 Chemical analysis of silica refractories-Part 2:Determination of silicon dioxide-Gravimetric-molybdenum blue photometric method
• GB/T 6901.3 Chemical analysis of silica refractories-Part 3:Determination of silicon dioxide-Hydrofluoric acid gravimetric method
• GB/T 6901.5 Chemical analysis of silica refractories-Part 5:Determination of aluminium oxide-Chromazurol S photometric method
• GB/T 6901.6 Chemical analysis of silica refractories-Part 6:Determination of aluminium oxide-EDTA volumetric method
• GB/T 6901.8 Chemical analysis of silica refractories-Part 8:Determination of calcium oxide and magnesium oxide-Atomic absorption spectrophotometric method
• GB/T 9274 Paints and varnishes--Determination of resistance to liquids
• JC/T 420 Chemical analysis method of chlorine in cement raw material
• YB/T 5142 The general rules for packing, marking, transporting, saveing and certification of metallurgical mine

GB/T 21236-2007 history

• 2007 GB/T 21236-2007 Silica fume from electric-furnace