GB/T 23250-2009 Active National standards

GB/T 23250-2009 The direct method of determining coalbed gas content in the mine

GB/T 23250-2009 The direct method of determining coalbed gas content in the mine

Publish Date: 2009-03-11 Implement Date: 2009-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 23250-2009

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Health, safety, and labor protection

ICS Name: Occupational safety and industrial hygiene

Publish Date: 2009-03-11

Implement Date: 2009-11-01

Pages: 23 pages

Scope

This standard specifies the sampling method for directly measuring the gas content in coal seams underground, the method for determining the amount of desorbed gas, the method for compensating for the amount of lost gas, the method for determining the amount of residual gas, and the method for calculating the gas content in coal seams.
This standard is applicable to the direct measurement of gas content in coal seams using the desorption method in coal mines.
This standard is not applicable to drill holes with severe water leakage, drill holes with gas emission, and the determination of gas content in core samples.

Development Information

Word Count: 43 Thousand words Pages: 23 pages

Referenced Standards

AQ 1026 GB/T 212-2001 Proximate analysis of coal GB/T 212-2008 Proximate analysis of coal GB 474-1996 Preparation of coal sample GB/T 474-2008 Method for preparation of coal sample GB/T 3715-1996 Terms relating to properties and analysis of coal GB/T 3715-2007 Terms relating to properties and analysis of coal GB/T 3715-2022 Terms relating to properties and analysis of coal GB/T 13610-2003 Analysis of natural gas by gas Chromatography GB/T 13610-2014 Analysis of natural gas composipion—Gas chromatography GB/T 13610-2020 Analysis of natural gas composition—Gas chromatography 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 MT/T 752-1997 Determine method of methane adsorption capacity in coal

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