GB/T 20966-2007 Active National standards

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

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

Publish Date: 2007-07-02 Implement Date: 2008-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20966-2007

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Health, safety, and labor protection

ICS Name: Occupational safety and industrial hygiene

Publish Date: 2007-07-02

Implement Date: 2008-01-01

Pages: 8 pages

Scope

This standard specifies the reagents, materials, instruments, and sampling procedures used in determining the particle size distribution of coal mine dust using the gravitational sedimentation and light transmission method, as well as the determination steps, the presentation of the determination results, and the determination report. This standard is applicable to the determination of the particle size distribution of coal dust, rock dust, and filter membrane dust.

Development Information

Word Count: 13 Thousand words Pages: 8 pages

Referenced Standards

GB/T 678-2002 Chemical reagent—Ethanol GB/T 6524-2003 Metallic powders-Determination of particle size distribution by gravitational sedimentation in a liquid and attenuation measurement GB/T 1345-1991 Test method for fineness of cement—The 80μm sieve GB/T 1345-2005 The test sieving method for fineness of cement GB/T 6003.1-1997 Test sieves of metal wire cloth GB/T 6003.1-2012 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6003.1-2022 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth HG/T 3498-1999 HG/T 3498-1999 Chemical reagent butyl acetate

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