GB 40880-2021 Active National standards force_standard

GB 40880-2021 Specification for coal mine gas classification identification

GB 40880-2021 Specification for coal mine gas classification identification

Publish Date: 2021-10-11 Implement Date: 2022-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB 40880-2021

Standard Type: National standards

Standard Status: Active

is_force_gb: yes

CCS Name: Health, safety, and labor protection

ICS Name: Occupational safety and industrial hygiene

Publish Date: 2021-10-11

Implement Date: 2022-05-01

Pages: 24 pages

Scope

This document specifies the classification of gas grades in coal mines, general requirements, appraisal basis, appraisal indicators and their measurement methods, determination rules, and the content of appraisal reports. This document is applicable to the classification appraisal of high-gas mines, the appraisal of coal and gas (carbon dioxide) outburst mines and coal seams, and the appraisal of rock and carbon dioxide (gas) outburst mines and rock layers.

Development Information

Word Count: 40 Thousand words Pages: 24 pages

Referenced Standards

AQ 1018 AQ 1083 GB/T 15663.8-1995 Terms relating to coal mining—Mine safety GB/T 15663.8-2008 Terms relating to coal mining—Part 8:Mine safety GB/T 23250-2009 The direct method of determining coalbed gas content in the mine 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 23561.12-2024 Methods for determining the physical and mechanical properties of coal and rock—Part 12:Method for the determination coal hardiness coefficients MT 380-1995 Coal mine air velocity meter AQ 1047-2007 The direct measurement method for the gas pressure of coal seams in coal mine underground AQ 1080-2009 Determination method of the initial gas emission rate (P) of coal AQ/T 1080-2009 AQ/T 1080-2009 Methane dispersion speed index (ΔP) for coal determination method MT/T 380-2007 Mine air velocity meter

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