GB 41022-2021 Active National standards force_standard

GB 41022-2021 Basic index of coal mine gas drainage and exploition

GB 41022-2021 Basic index of coal mine gas drainage and exploition

Publish Date: 2021-12-01 Implement Date: 2022-06-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB 41022-2021

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: 2021-12-01

Implement Date: 2022-06-01

Pages: 9 pages

Scope

This document stipulates the conditions under which coal mines should carry out gas extraction, the target requirements that gas extraction should meet, and the method of calculating these targets.
This document is applicable to underground coal mines.

Development Information

Word Count: 20 Thousand words Pages: 9 pages

Referenced Standards

GB/T 212-2001 Proximate analysis of coal GB/T 212-2008 Proximate analysis of coal GB/T 6949-1998 Determination of apparent relative density of coal GB/T 6949-2010 Determination of apparent relative density of coal GB/T 23250-2009 The direct method of determining coalbed gas content in the mine GB/T 23561.4-2009 Methods for determining the physical and mechanical properties of coal and rock—Part 4:Methods for calculating the porosity of coal and rock GB/T 31537-2015 Terms relating to coalbed methane(coal mine gas) GB 40880-2021 Specification for coal mine gas classification identification MT/T 752-1997 Determine method of methane adsorption capacity in coal AQ 1047-2007 The direct measurement method for the gas pressure of coal seams in coal mine underground GB 50471-2018 Standard for design of the gas drainage engineering of coal mine

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