GB/T 20966-2007
Determination of particle size distribution for colliery powders (English Version)

Standard No.

GB/T 20966-2007

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 20966-2007

Scope

This standard specifies the reagents, materials, instruments and sample preparation, measurement procedures, expression of measurement results and measurement reports used in the determination of coal mine dust particle size distribution by gravity sedimentation light transmission method. This standard applies to the determination of particle size distribution of coal dust, rock dust and filter dust.

GB/T 20966-2007 Referenced Document

• GB/T 1345 The test sieving method for fineness of cement
• GB/T 6003.1 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth*， 2022-10-12 Update
• GB/T 6524-2003 Metallic powders-Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement
• GB/T 678-2002 Chemical reagent Ethanol
• HG/T 3498-1999 Chemical reagent.n-Butyl acetate

GB/T 20966-2007 history

• 2007 GB/T 20966-2007 Determination of particle size distribution for colliery powders