GB 5751-1986
Replaced
GB/T 22279-2008
Active
National standards
GB/T 22279-2008 Guide for development of certified reference materials for the composition analysis and the physical property measurements of coal
GB/T 22279-2008 Guide for development of certified reference materials for the composition analysis and the physical property measurements of coal
Basic Information
Standard Code:
GB/T 22279-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Coal analysis methods
ICS Name:
\nCoal
Publish Date:
2008-08-07
Implement Date:
2009-03-01
Pages:
11 pages
Scope
This standard specifies the preparation of standard materials for coal composition analysis and physical property measurement, their uniformity and stability testing, value assignment, and uncertainty evaluation procedures, as well as the requirements for the packaging and storage of standard materials and the preparation of standard material certificates. This standard applies to the development and replication of standard materials for coal composition analysis and physical property measurement.
Development Information
Referenced Standards
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