GB 5751-1986
Replaced
GB/T 6949-2010
Active
National standards
GB/T 6949-2010 Determination of apparent relative density of coal
GB/T 6949-2010 Determination of apparent relative density of coal
Basic Information
Standard Code:
GB/T 6949-2010
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Coal analysis methods
ICS Name:
\nCoal
Publish Date:
2011-01-10
Implement Date:
2011-06-01
Pages:
9 pages
Scope
This standard specifies the instruments and equipment, reagents, coal sample preparation, determination steps, result calculation, and precision for the determination of the apparent relative density of coal.
This standard is applicable to lignite, bituminous coal, and anthracite.
Development Information
Replace the following standards
Referenced Standards
煤炭资源勘探煤样采取规程 1989
GB 474-1996 Preparation of coal sample
GB/T 474-2008 Method for preparation of coal sample
GB 475-1996 Sampling for commercial coal
GB/T 475-2008 Method for manual sampling of commercial coal
GB 482-1995 Sampling of coal in seam
GB/T 482-2008 Sampling of coal seams
GB/T 19494.1-2004 Mechanical sampling of coal—Part 1:Method for sampling
GB/T 19494.1-2023 Mechanical sampling of coal—Part 1:Method for sampling
Related Standards
GB 481-1993
abolished_transferred
GB 481-1993 Sampling method of coal sample for production
GB/T 15223-1994
Replaced
GB/T 15223-1994 Plastics—Liquid resins—Determination of density by the pyknometer method
GB/T 15224.1-1994
Replaced
GB/T 15224.1-1994 Classification for quality of coal—Classification for ash yield of coal
GB/T 15224.2-1994
Replaced
GB/T 15224.2-1994 Classification for quality of coal—Classification for sulphur content of coal
GB/T 15224.3-1994
Replaced