GB 5751-1986
Replaced
MT/T 264-2025
Active
Industry standards-Coal
MT/T 264-2025 Method for Vickers microhardness of coal
MT/T 264-2025 Method for Vickers microhardness of coal
Basic Information
Standard Code:
MT/T 264-2025
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
\nCoal rock
ICS Name:
\nCoal
Publish Date:
2025-06-30
Implement Date:
2025-12-30
Publisher:
国家能源局
Technical Committee:
全国煤炭标准化技术委员会(SAC/TC 42)
Pages:
12 pages
Scope
本文件规定了煤的显微维氏硬度测定的方法提要、设备与材料、试样、仪器的校准、测点的确定、测定步骤、结果表述和试验报告。
本文件适用于烟煤和无烟煤显微维氏硬度的测定，褐煤可参考执行。
Development Information
Drafting Units:
中国地质大学(北京)、中煤科工西安研究院(集团)有限公司、陕西省能源质量监督检验所
Drafting Persons:
姚艳斌、孙晓晓、党红艳、肖文钊、敖卫华
Replace the following standards
Referenced Standards
GB/T 4340.2-1999 Metallic vickers hardness test—Part 2:Verification of hardness testers
GB/T 4340.2-2012 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines
GB/T 4340.2-2025 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines
GB/T 15588-2001 Classification of macerals for bituminous coal
GB/T 15588-2013 Classification of macerals for bituminous coal
GB/T 16773-1997 Method of preparing coal samples for the coal petrographic analysis
GB/T 16773-2008 Method of preparing coal samples for the coal petrographic analysis
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