NB/T 11132-2023 General specification for dust source tracking and dust suppression by spraying system on shearer

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods 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 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 MT/T 154.2-1996 The method for preparing product model numbers of coal mining electrical equipment and management measures MT 209-1990 The general technical requirements for electrical products used in coal mine communication, detection, and control MT/T 240-1997 General specification for the water nozzle to control dusts in coal mine MT 286-1992 The method for preparing model numbers and management methods for coal mine communication and automation products MT 503-1996 Light-Controlled Automatic Spray Dust Control Device General Technical Requirements MT/T 715-1997 General specification of explosion-proof electromagnet valves in coal mine AQ 1043-2007 Mining Product Safety Mark Identification MT/T 98-2006 Testing specification for hydraulic support hoses and hose assemblies MT/T 154.2-2019 Coal mining electromechanical product model numbering method - Part 2: Model numbering method for electrical products MT/T 503-2019 Light-Controlled Automatic Spray Dust Control Device General Technical Requirements MT 818.1-2009 Coal mine electric cables - Part 1: General provisions for mobile soft cables MT 818.1-1999 Flame-resistant Cable for Coal Mines - Part 1: General Provisions for Mobile Flame-resistant Soft Cables for Coal Mines MT 818.5-1999 Flame-resistant cables for coal mines - Part 1: Movable flame-resistant flexible cables for coal mines - Part 5: Movable soft cables with rated voltage of 0.66/1.14kV and below MT/T 818.5-2009 Coal mine electric cables - Part 5: Movable soft cables with rated voltage of 0.66/1.14kV and below MT/T 188.2-2000 Mine emulsion pump station emulsion pump GB/T 191-2025 Graphical symbols marking for handling and storage of packages