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GB/T 23561.12-2010 Replaced National standards

GB/T 23561.12-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 12:Methods for determining coal hardiness coefficient

GB/T 23561.12-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 12:Methods for determining coal hardiness coefficient

Publish Date: 2010-09-26 Implement Date: 2011-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 23561.12-2010
Standard Type: National standards
Standard Status: Replaced
is_force_gb: no
CCS Name: Basic standards and general methods
ICS Name: Mining and mineral products comprehensive
Publish Date: 2010-09-26
Implement Date: 2011-02-01
Pages: 8 pages

Scope

This part of GB/T 23561 specifies the terms and definitions, instruments and equipment, specimens specifications, measurement steps, and data calculation involved in determining the hardness coefficient of coal using the crushing method.
This part is applicable to the determination of the hardness coefficient of lignite, bituminous coal, and anthracite, but not to natural coke and coke.

Development Information

Word Count: 9 Thousand words Pages: 8 pages

Same series standard

GB/T 23561.10-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 10:Methods for determining tensile strength of coal and rock GB/T 23561.11-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 11:Methods for determining shear strength of coal and rock GB/T 23561.13-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 13:Methods for determining point load strength index of coal and rock GB/T 23561.14-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 14:Methods for determining the swelling ratio of rock GB/T 23561.15-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 15:Method for determining the swelling stress of rock GB/T 23561.16-2010 Methods for determining the physical and mechanical properties of coal and rock—Part 16:Method for determining slake durability index of rock

Superseded by the following standards

GB/T 23561.12-2024 Methods for determining the physical and mechanical properties of coal and rock—Part 12:Method for the determination coal hardiness coefficients

Related Standards

GB/T 2007.1-1987 Active

GB/T 2007.1-1987 General rules for the sampling and sample preparation of minerals in bulk—Sampling by manual method

Publish Date: 1987-12-15
GB/T 2007.2-1987 Active

GB/T 2007.2-1987 General rules for the sampling and sample preparation of minerals in bulk Sample preparation by manual method

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GB/T 2007.3-1987 Active

GB/T 2007.3-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental method for evaluation of quality variation

Publish Date: 1987-12-15
GB/T 2007.4-1987 Replaced

GB/T 2007.4-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental methods for checking the precision

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GB/T 2007.5-1987 General rules for the sampling and sample preparation of minerals in bulk—Experimental method for checking the bias of sampling

Publish Date: 1987-12-15
GB/T 2007.6-1987 Active

GB/T 2007.6-1987 General rules for the sampling and sample preparation of minerals in bulk—Determination of moisture content—Heat drying method

Publish Date: 1987-12-15
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