GB/T 41320-2022 Non-household gas-fired space heater

GB/T 16411-2008 Universal test methods of gas burning appliances for domestic use GB 16914-2012 General safety technique conditions of gas burning appliances GB/T 17626.2-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrostatic discharge immunity test GB/T 17626.4-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burstimmunity test GB 25034-2020 Gas-fired heating and hot water combi-boiler HG/T 20592 GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 3280-1992 Cold rolled stainless steel sheets and plates GB/T 3280-2007 Cold rolled stainless steel plate, sheet and strip GB/T 3280-2015 Cold rolled stainless steel plate, sheet and strip 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/T 7306.1-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 1:Parallel internal and taper external threads GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 7307-2001 Pipe threads with 55 degree thread angle where pressure-tight joints are not made on the threads GB/T 9124.1-2019 Steel pipe flanges—Part 1:PN designated GB/T 9144-2003 General purpose metric screw threads—Preferable plan GB/T 13611-1992 Classification of town gas GB/T 13611-2006 Classification and essential property of city gas GB/T 13611-2018 Classification and basic characteristics of city gas GB/T 17626.5-1999 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test GB/T 17626.5-2008 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test GB/T 17626.5-2019 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test GB/T 17626.6-1998 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances, induced by radio-frequency fields GB/T 17626.6-2008 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances,induced by radio-frequency fields GB/T 17626.6-2017 Electromagnetic compatibility—Testing and measurement techniques—Immunity to conducted disturbances,induced by radio-frequency fields GB/T 17626.11-1999 Electromagnetic compatibility—Testing and measurement techniques—Voltage dips, short interruptions and voltage variations immunity tests GB/T 17626.11-2008 Electromagnetic compatibility—Testing and measurement techniques—Voltage dips,short interruptions and voltage variations immunity tests GB/T 17626.11-2023 Electromagnetic compatibility—Testing and measurement techniques—Part 11:Voltage dips, short interruptions and voltage variations immunity tests for equipment with input current up to 16 A per phase GB 19212.7-2006 Safety of power transformers, power supply units and similar—Part 7:Particular requirements for safety isolating transformers for general use GB/T 19212.7-2012 Safety of transformers,reactors,power supply units and similar products for supply voltages up to 1 100 V—Part 7:Particular requirements and test for safety isolating transformers and power supply units incorporating safety isolating transformers GB 35844-2018 Pressure regulators for liquefied petroleum gas cylinders GB/T 37499-2019 Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Automatic and semi-automatic valves GB/T 38693-2020 Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Thermoelectric flame supervision controls GB/T 38756-2020 Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Ignition unit GB/T 39485-2020 Safety and control devices for gas burners and gas-burning appliances—Particular requirements—Manual gas valves CJ/T 180-2003 Manually operated gas valves for use in house CJ/T 180-2014 Manually operated gas valves for gas installations of buildings JB/T 81-2015 Sheet steel plate welding flanged steel pipe flange JB 81-1994 Convex Panel-Type Flat-Weld Steel Pipe Flanges GB/T 9144-2025 General purpose metric screw threads—Preferable plan GB/T 191-2025 Graphical symbols marking for handling and storage of packages