T/CECS 10131-2021 Safety monitoring device for kitchen gas used in small and medium-sized catering establishments

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2406.2-2009 Plastics—Determination of burning behaviour by oxygen index—Part 2:Ambient-temperature test GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection 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 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 30597-2014 General requirements of safety and control devices for gas burners and gas-burning appliances GB/T 34004-2017 Domestic and small-scale catering kitchen combustible gas alarms and sensor CJ/T 180-2014 Manually operated gas valves for gas installations of buildings CJ/T 394-2018 Electro-magnetic emergency shut-off valve for gas JGJ 64-2017 Standard for design of dietetic buildings GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 12221-2025 Metal valves—Face to face,end to end,centre to face and centre to end dimensions