NB/T 11527-2024 Code of practice for gas directional drilling in coal mine

GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.2-2010 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures "d" GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 3836.4-2010 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i" GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” AQ 1013-2005 Safety inspection and testing specifications for the air compressor system used in coal mines AQ 1027-2006 Coal mine gas extraction specifications MT 159-1995 Mining dust collector MT/T 159-2019 Mining Dust Collector General Technical Conditions MT/T 159-2005 Mining dust collector general technical specification MT/T 521-1995 Drilling rod for conventional geological drilling in coal mine underground passages MT/T 521-2006 Mined tunnel drill bit (MT/T 521-2006) - Conventional drill rods for coal mine roadway boring MT 687-1997 Portable air compressor in underground coal mines MT/T 687-2009 Coal mine underground air compressor MT/T 774-2011 Mine mobile membrane separation nitrogen production device general technical specification MT/T 774-1998 Mobile Membrane Separation Nitrogen Production Device for Coal Mine Use General Technical Requirements MT/T 790-2006 Drilling rig for coal mine underground exploration MT/T 790-1998 Drilling rig for coal mine underground exploration MT/T 1135-2011 Mining Carbon Molecular Sieve Nitrogen Production Device General Technical Specification NB/T 10173-2019 Directional Drilling Technology In Coal Mine Working Procedure NB/T 10174-2019 Technical Specification for Drilling and Measurement While Drilling (MWD) Device for Mining Application NB/T 10175-2019 Underground wired measurement drill rod with directional drilling in coal mines SY/T 5383-2010 SY/T 5383-2010 Screw Prop Bit Drilling Tool SY/T 5383-1991 screw drill bit assembly SY/T 5383-1999 pump-rod drill bit SY 5547-1992 The use, maintenance, and management of downhole power drilling tools SY/T 5547-2012 SY/T 5547-2012 Screw Hammer Bit Drilling Tool Use, Maintenance and Management SY/T 5547-2000 The use, maintenance, and management of the screw rod drilling tool MT/T 521-2025 Standard drill rod for drilling in underground coal mine