GB 5751-1986
Replaced
GB/T 46288-2025
Active
National standards
GB/T 46288-2025 Maceral classification for brown coals and lignites
GB/T 46288-2025 Maceral classification for brown coals and lignites
Price:
$ 49.00
Basic Information
Standard Code:
GB/T 46288-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
\nCoal rock
ICS Name:
\nCoal
Publish Date:
2025-10-05
Implement Date:
2026-05-01
Pages:
24 pages
Scope
This document specifies the classification basis and classification scheme for the micro-components of lignite.
This document is applicable to lignite with a random reflectance of less than or equal to 0.40% of the humic bodies.
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