GB 47291-2026 Technical requirements for coal mine compressed air self-rescue system

GB 2626-2019 Respiratory protection—Non-powered air-purifying particle respirator 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” GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 9969-2008 General principles for preparation of instructions for use of industrial products GB 9969.1-1998 General principles for preparation of instructions for use of industrial products GB/T 10111-1988 Methods for random sampling by utilizing dices of random number GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality GB 14161-1993 Mine safety signs GB/T 14161-2008 Mine safety signs GB 31975-2025 Respiratory protection—Technical requirements for compressed air of breathing apparatus GB 50029-2014 Code for design of compressed air station GB 50215-2015 Code for design of mine of coal industry AQ 6201-2019 Mining Safety Monitoring System General Technical Requirements AQ 6201-2006 Mine safety monitoring system general technical requirements MT 113-1995 Flame and Electrostatic Resistance Test Method and Criteria for Polymer Products Used in Coal Mine Underground Workplaces