GB 5751-1986
Replaced
GB/T 31087-2014
Active
National standards
GB/T 31087-2014 General technical requirements for impurities control of commercial coal
GB/T 31087-2014 General technical requirements for impurities control of commercial coal
Basic Information
Standard Code:
GB/T 31087-2014
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Technical management
ICS Name:
\nCoal
Publish Date:
2014-12-22
Implement Date:
2015-06-01
Pages:
4 pages
Scope
This standard specifies the relevant requirements and principles for the control, removal, and supervision of impurities in commercial coal.
This standard applies to the control, removal, and supervision of impurities in commercial coal.
Development Information
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