CJ/T 394-2012 Electro-magnetic emergency shut-off valve for gas

CJ/T 394-2018 Electro-magnetic emergency shut-off valve for gas

GB/T 1047-1995 Nominal size for pipe components GB/T 1047-2005 Pipework components—Definition and selection of DN (nominal size) GB/T 1047-2019 Pipework components—Definition and selection of nominal size 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 3836.3-2000 Electrical apparatus for explosive gas atmospheres—Part 3:Increased safety “e” GB 3836.3-2010 Explosive atmospheres—Part 3:Equipment protection by increased safety "e" GB/T 3836.3-2021 Explosive atmospheres—Part 3:Equipment protection by increased safety “e” 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 3836.5-2004 Electrical apparatus for explosive gas atmosphere—Part 5:Pressurized enclosures"p" GB/T 3836.5-2017 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure"p" GB/T 3836.5-2021 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure "p" GB 3836.6-2004 Electrical apparatus for explosive gas atmospheres—Part 6:Oil-immersion"o" GB/T 3836.6-2017 Explosive atmospheres—Part 6:Equipment protection by liquid immersion“o” GB 3836.7-2004 Electrical apparatus for explosive gas atmospheres—Part 7:Powder filling"q" GB/T 3836.7-2017 Explosive atmospheres—Part 7:Equipment protection by powder filling“q” GB 3836.8-2003 Electrical apparatus for explosive gas atmospheres—Part 8:Type of protection “n” GB 3836.8-2014 Explosive atmospheres—Part 8:Equipment protection by type of protection “n” GB/T 3836.8-2021 Explosive atmospheres—Part 8: Equipment protection by type of protection “n” GB 3836.9-1990 Electrical apparatus for explosive atmospheres Encapsulated electrical apparatus "m" GB 3836.9-2006 Electrical apparatus for explosive gas atmospheres—Part 9:Encapsulation "m" GB 3836.9-2014 Explosive atmospheres—Part 9:Equipment protection by type of protection “m” GB/T 3836.9-2021 Explosive atmospheres—Part 9:Equipment protection by encapsulation “m” GB 3836.11-1991 Electrical apparatus for explosive atmospheres-Method of test for ascertainment of maximum experimental safe gap GB/T 3836.11-2008 Explosive atmospheres—Part 11:Equipment protection by flameproof enclosures “d”—Method of test for ascertainment of maximum experimental safe gap GB/T 3836.11-2017 Explosive atmospheres—Part 11:Material characteristics for gas and vapour classification—Test methods and data GB/T 3836.11-2022 Explosive atmospheres—Part 11:Material characteristics for gas and vapour classification—Test methods and data GB 3836.12-1991 Electrical apparatus for explosive atmospheres—Classification of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting currents GB/T 3836.12-2008 Explosive atmospheres—Part 12:Classification of mixtures of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting current GB/T 3836.12-2019 Explosive atmospheres—Part 12:Material characteristics for combustible dusts—Test methods GB 3836.13-1997 Electrical apparatus for explosive gas atmospheres—Part 13:Repair and overhaul for apparatus used in explosive gas atmospheres GB 3836.13-2013 Explosive atmospheres—Part 13:Equipment repair,overhaul and reclamation GB/T 3836.13-2021 Explosive atmospheres—Part 13:Equipment repair,overhaul,reclamation and modification GB 3836.14-2000 Electrical apparatus for explosive gas atmospheres—Part 14:Classification of hazardous areas GB 3836.14-2014 Explosive atmospheres—Part 14:Classification of areas—Explosive gas atmosphere GB 3836.15-2000 Electrical apparatus for explosive gas atmospheres—Part 15:Electrical installations in hazardous areas (other than mines) GB/T 3836.15-2017 Explosive atmospheres—Part 15:Electrical installations design,selection and erection GB 3836.15-2024 Explosive atmospheres—Part 15:Specification of electrical installations design,selection and erection GB 3836.16-2006 Electrical apparatus for explosive gas atmospheres—Part 16:Inspection and maintenance of electrical installation(other than mines) GB/T 3836.16-2017 Explosive atmospheres—Part 16:Electrical installations inspection and maintenance GB/T 3836.16-2022 Explosive atmospheres—Part 16:Electrical installations inspection and maintenance GB 3836.16-2024 Explosive atmospheres—Part 16:Specification of electrical installations inspection and maintenance GB 3836.17-2007 Electrical apparatus for explosive gas atmosphere—Part 17:Construction and use of rooms or buildings protected by pressurization GB/T 3836.17-2019 Explosive atmospheres—Part 17:Equipment protection by pressurized room “p” and artifically ventilated room “v” GB 3836.18-2010 Explosive atmospheres—Part 18:Intrinsically safe system GB/T 3836.18-2017 Explosive atmospheres—Part 18:Intrinsically safe electrical systems GB/T 3836.18-2024 Explosive atmospheres—Part 18:Intrinsically safe electrical systems GB 3836.19-2010 Explosive atmospheres—Part 19:Fieldbus intrinsically safe concept(FISCO) GB 3836.20-2010 Explosive atmospheres—Part 20:Equipment with equipment protection level (EPL) Ga GB/T 3836.21-2017 Explosive atmospheres—Part 21:Application of quality systems for equipment manufacture GB/T 3836.21-2022 Explosive atmospheres—Part 21:Application of quality management systemsfor Ex Product manufacture GB/T 3836.22-2017 Explosive atmospheres—Part 22:Protection of equipment and transmission system using optical radiation GB/T 3836.22-2023 Explosive atmospheres—Part 22:Protection of equipment and transmission system using optical radiation GB/T 3836.23-2017 Explosive atmospheres—Part 23:Group Ⅰ,category EPL Maequipment intended to remain functionalin atmospheres endangered by firedamp and/or coal dust GB/T 3836.24-2017 Explosive atmospheres—Part 24:Equipment protection by special protection“s” GB/T 3836.25-2019 Explosive atmospheres—Part 25:Requirements for process sealing between flammable process fluids and electrical systems GB/T 3836.26-2019 Explosive atmospheres—Part 26:Electrostatic hazards—Guidance GB/T 3836.27-2019 Explosive atmospheres—Part 27:Electrostatic hazards—Test GB/T 3836.28-2021 Explosive atmospheres—Part 28:Non-electrical equipment for explosive atmospheres—Basic method and requirements GB/T 3836.29-2021 Explosive atmospheres—Part 29:Non-electrical equipment for explosive atmospheres—Constructional safety “c”,control of ignition source “b”, liquid immersion “k” GB/T 3836.30-2021 Explosive atmospheres—Part 30:Equipment and components in explosive atmospheres in underground mines GB/T 3836.31-2021 Explosive atmospheres—Part 31:Equipment dust ignition protection by enclosure “t” GB/T 3836.32-2021 Explosive atmospheres—Part 32:Intrinsically safe systems with electronically controlled spark duration limitation GB/T 3836.33-2021 Explosive atmospheres—Part 33:Equipment in adverse service conditions GB/T 3836.34-2021 Explosive atmospheres—Part 34:Equipment assemblies GB/T 3836.35-2021 Explosive atmospheres—Part 35:Classification of areas for explosive dust atmospheres GB/T 3836.36-2022 Explosive atmospheres—Part 36:Electrical safety devices for the control of potential ignition sources from Ex Equipment GB/Z 3836.37-2025 Explosive atmospheres—Part 37:Equipment protection by 2-wire intrinsically safe ethernet concept (2-WISE) GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB 4706.1-2005 Household and similar electrical appliances—Safety—Part 1:General requirements GB 5013.1-1997 Rubber insulated cables of rated voltages up to and including 450/750V—Part 1:General requirements GB/T 5013.1-2008 Rubber insulated cables of rated voltages up to and including 450/750 V—Part 1:General requirements GB 5023.1-1997 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750V—Part 1:General requirements GB/T 5023.1-2008 Polyvinyl chloride insulated cables of rated voltages up to and including 450/750 V—Part 1:General requirements GB/T 9113-2010 Integral steel pipe flanges GB/T 12221-1989 Metal valves for use in flanged pipe systems—Face-to -face and centre-to-face dimensions GB/T 12221-2005 Metal valves—Face to face,end to end,center to face and center to end dimensions GB/T 12221-2025 Metal valves—Face to face,end to end,centre to face and centre to end dimensions GB/T 12235-2007 Steel globe valves and lift check valve for petroleum,petrochemical and allied industries GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 14536.1-2008 Automatic electrical controls for household and similar use—Part 1:General requirements GB 16838-1997 Environmental test methods and severities for fire electronic products GB/T 16838-2005 Environmental test methods and severities for fire electronic products GB/T 16838-2021 Environmental test and severities for fire electronic products GB/T 17213.5-1998 Industrial-process control valves—Part 5:Marking GB/T 17213.5-2008 Industrial-process control valves—Part 5:Marking CJ/T 222-2006 Quality assessment procedures and test rules for gas-burning appliances for domestic use CJ 274-2008 City gas pressure regulators CJ/T 346-2010 Automatic shut-off valves for gas-burning appliances