Standards

CJJ/T 119-2008 Terminology standard for urban public transport engineering

Publish Date: 2008-02-29

CJ 274-2008 City gas pressure regulators

Publish Date: 2008-02-29

CJ/T 275-2008 City gas pressure regulating station

This standard specifies the terms and definitions, model numbering, structural requirements, technical requirements, test methods, inspection and acceptance, quality certificates, marking, packaging, transportation, and storage of gas pressure regulators used in urban gas transmission and distribution systems (hereinafter referred to as "pressure regulators").
This standard applies to pressure regulators with an import pressure not exceeding 1.6 MPa and an operating temperature not exceeding -20°C to 60°C.
This standard does not apply to underground pressure regulators.

Publish Date: 2008-02-29

CJ/T 50-2008 Pressure regulators for liquefied petroleum gas cylinders

This standard specifies the classification and model numbering, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of bottled liquefied petroleum gas regulators (hereinafter referred to as regulators). This standard applies to household bottled liquefied petroleum gas regulators (hereinafter referred to as household regulators) with an inlet pressure of 0.03 MPa to 1.56 MPa, an outlet pressure of 2.80 kPa ± 0.50 kPa, a rated flow rate of less than or equal to 2 m3/h, and an operating temperature of -20°C to 45°C; as well as non-household bottled liquefied petroleum gas regulators (hereinafter referred to as non-household regulators) with an inlet pressure of 0.03 MPa to 1.56 MPa, an outlet pressure of 2.80 kPa ± 0.50 kPa or 5.00 kPa ± 0.90 kPa, a rated flow rate of less than or equal to 3.6 m3/h, and an operating temperature of -20°C to 45°C. All pressure values mentioned in this standard refer to gauge pressure unless otherwise specified.

Publish Date: 2008-02-29

CJ 50-2008 CJ 50-2008 Bottled Liquefied Petroleum Gas Regulator

Publish Date: 2008-02-29

CJ/T 213-2005 Urban municipal supervision and management information system—Rules for basic management grid division and coding

This standard specifies the terms and definitions of unit grid division and coding in urban municipal comprehensive supervision information systems, the principles of unit grid division, the rules of unit grid coding, and the requirements for unit grid data, etc.
This standard applies to the unit grid division and coding for urban municipal comprehensive supervision within built-up areas of cities. Other management applications in cities can refer to this standard for implementation.

Publish Date: 2005-06-07

CJ/T 215-2005 Urban municipal supervision and management information system—Geocoding

This standard specifies the terminology and definitions, basic requirements, and geographic coding rules for geographic coding in urban municipal comprehensive supervision information systems.
This standard applies to the geographic coding of management components and events in urban municipal comprehensive supervision information systems within built-up urban areas, which involves accurately locating management components and events using standardized location description languages. Other urban management applications can refer to this standard for implementation.

Publish Date: 2005-06-07

CJ/T 214-2005 Urban Municipal Integrated Supervision Information System Management Components and Event Classification and Encoding

Publish Date: 2005-06-07

CJ/T 207-2005 Technical reguirements of barrier-free low floor and low entry city bus

This standard specifies the terms and definitions, requirements, and test methods for barrier-free low-floor and low-entry city buses.
This standard applies to Class M3 vehicles with a length of more than 8 m, including barrier-free low-floor and low-entry single-deck, double-deck, and articulated city buses of Grade A, Grade I, and Grade II.

Publish Date: 2005-05-16

CJ/T 209-2005 Ornamental fountain sprinklers

This standard specifies the model specifications, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of fountain nozzles (hereinafter referred to as nozzles).
This standard applies to various types of fountain nozzles. Other sprayers can also be used as a reference.

Publish Date: 2005-05-16

CJ/T 210-2005 Random Polypropylene/Aluminum stable composite pipe

This standard specifies the definition, symbols, abbreviations, usage conditions, product classification, selection of the S value for pipe series, materials, requirements, test methods, inspection rules and markings, packaging, transportation, and storage of PP-R plastic-aluminum stable composite pipes (hereinafter referred to as PP-R plastic-aluminum stable pipes).
This standard applies to cold and hot water piping systems, including industrial and civil cold and hot water, drinking water, and hot water heating, central air conditioning systems, etc.
This standard does not apply to fire extinguishing systems.

Publish Date: 2005-05-16

CJ/T 211-2005 Inspection manhole lid made of polymer matrix composites

This standard specifies the classification, load-bearing grade, technical requirements, test methods, inspection rules, and markings of polymer-based composite manhole covers.
This standard applies to various manhole covers installed on urban roads and highways, as well as those installed on other surfaces where motor vehicles and non-motor vehicles may travel or park. It also applies to various manhole covers installed on sidewalks and green spaces.

Publish Date: 2005-05-16