Standards

CJ/T 394-2018 Abolished

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

This standard specifies the terms and definitions, classification and models, materials and structures, requirements, test methods, inspection rules, marking and user manuals, packaging, transportation, and storage of electromagnetic gas emergency shut-off valves (hereinafter referred to as shut-off valves).
This standard applies to electromagnetic gas emergency shut-off valves with a maximum working pressure not exceeding 0.4 MPa, a nominal size not exceeding DN 300, and an operating temperature range of -20 °C to 60 °C. These valves are designed to be interconnected with urban gas safety control systems and are driven by electromagnetic force.

Publish Date: 2018-03-08

CJ/T 490-2016 Abolished

CJ/T 490-2016 Armouring hose for the connection of gas appliance

This standard specifies the terms and definitions of metal-covered hoses for connecting gas appliances (hereinafter referred to as hoses), product structure, specifications and model requirements, test methods, inspection rules, marking, packaging, transportation, and storage.
This standard applies to metal-covered hoses used for connecting indoor gas pipes of towns with a nominal size not exceeding 32 mm, a working pressure not exceeding 10 kPa, and an operating temperature range of -10 ℃ to 70 ℃, and whose gas quality complies with the requirements of GB/T 13611. These hoses are used to connect the outlets of pressure regulators for bottled liquefied petroleum gas to gas-burning appliances.

Publish Date: 2016-06-01

CJ/T 491-2016 Abolished

CJ/T 491-2016 Compounded rubber hose for the connection of gas appliance

This standard specifies the terms and definitions, classification, model structure, material requirements, test methods, inspection rules, marking and user manuals, as well as packaging, transportation, and storage for rubber composite hoses used for connecting gas appliances (hereinafter referred to as hoses).
This standard applies to rubber hoses used for connecting indoor gas pipes in urban gas systems with a working pressure not exceeding 10 kPa, an operating temperature range of -10 ℃ to 70 ℃, and gas quality meeting GB/T 13611. These hoses are used to connect the outlets of household bottled liquefied petroleum gas regulators to gas-burning appliances.

Publish Date: 2016-06-01

CJ/T 467-2014 Abolished

CJ/T 467-2014 Semi-instantaneous water heater

This standard specifies the terms and definitions, models and structures, materials, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of semi-instantaneous heat exchangers (hereinafter referred to as "heat exchangers").
This standard applies to the design, manufacture, inspection, and testing of semi-instantaneous heat exchangers using water vapor or heated water as the heat medium.

Publish Date: 2014-12-04

CJ/T 458-2014 Abolished

CJ/T 458-2014 Technical specification of system for the levitation control of medium-low speed maglev transportation vehicle

This standard specifies the system composition, environmental conditions, requirements, inspection and test methods, inspection rules, marking, packaging, storage, and quality assurance of the suspension control system for medium- and low-speed maglev transit vehicles.
This standard applies to the manufacture, testing, and acceptance of the suspension control system for medium- and low-speed maglev transit vehicles (referred to as "vehicles").

Publish Date: 2014-07-14

CJ/T 450-2014 Abolished

CJ/T 450-2014 Pneumatic gas/air ratio adjustment devices for gas-burning appliances

This standard specifies the terms and definitions, classification and grouping, structure and materials, requirements, test methods, inspection rules, marking, installation and operation instructions, as well as packaging, transportation, and storage for pneumatic gas/air ratio adjustment devices (hereinafter referred to as "proportional adjustment devices") used in gas burners and gas-fired appliances. This standard applies to proportional adjustment devices that indicate a maximum working pressure of not more than 50 kPa, a nominal size of not more than DN250, and use town gas specified in GB/T 13611. These devices can independently test the gas pressure by changing the air pressure. Proportional adjustment devices that change the air pressure by the gas pressure can refer to this standard for implementation. This standard does not apply to mechanically linked proportional adjustment devices and electronically controlled proportional adjustment devices.

Publish Date: 2014-04-09

CJ/T 254-2014 Abolished

CJ/T 254-2014 Additive pipe pressure water supply devices

This standard specifies the terms and definitions, classification and models, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of pipe network superimposed water supply equipment (hereinafter referred to as "equipment").
This standard applies to the design, manufacture, and inspection of pipe network superimposed water supply equipment.

Publish Date: 2014-03-27

CJ/T 451-2014 Abolished

CJ/T 451-2014 General technique conditions of commercial gas burning appliances

This standard specifies the terms and definitions, classification, structure and materials, requirements, test methods, inspection rules, marking, warnings, and user manuals, as well as packaging, transportation, and storage for commercial gas-fired appliances (hereinafter referred to as "appliances").
This standard applies to gas-fired appliances used in commercial kitchens and other settings, which use gas as an energy source in accordance with GB/T 13611, and are installed indoors with the combustion products being mechanically discharged to the outdoors.

Publish Date: 2014-03-27

CJ/T 443-2014 Abolished

CJ/T 443-2014 General specification of bar screen machine for water supply and drainage service

This standard specifies the terms and definitions, classification and models, performance parameters, materials, requirements, test methods, marking, packaging, transportation, and storage of grille trash pumps.
This standard applies to grille trash pumps used in urban water supply and drainage systems and industrial wastewater treatment projects.

Publish Date: 2014-01-21

CJ/T 446-2014 Abolished

CJ/T 446-2014 Slurry shield machine

This standard specifies the models and basic parameters, requirements, test methods, inspection rules, user manuals, markings, packaging, transportation, and storage of sludge-balance shield tunneling machines.
This standard applies to sludge-balance shield tunneling machines used in underground tunnel projects such as urban rail transit, railways, and highways.

Publish Date: 2014-01-21

CJ/T 441-2013 Abolished

CJ/T 441-2013 Household sewage treatment plant

This standard specifies the classification, models, components, applicable conditions, materials, and supporting equipment of household wastewater treatment devices, as well as their requirements, test methods, inspection rules, marking, packaging, transportation, and storage.
This standard applies to household wastewater treatment devices (hereinafter referred to as "devices") with a single processing capacity of no more than 2.0 m3/day.

Publish Date: 2013-10-30

CJ/T 423-2013 Abolished

CJ/T 423-2013 Urban municipal supervision and management information system—Mode acceptance

This standard specifies the acceptance procedures and methods, acceptance content, acceptance indicators and scoring, and acceptance opinions for the construction and operational effectiveness of urban municipal comprehensive supervision information systems.
This standard applies to the acceptance of the construction and operational effectiveness of urban municipal comprehensive supervision information systems by higher-level competent authorities.

Publish Date: 2013-10-09