Standards

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 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 201-2005 Service door equipment for urban bus

This standard specifies the terms and definitions, classification, model compilation methods, technical requirements, test methods, inspection rules, marking, packaging, storage, and transportation of passenger door devices for urban buses.
This standard applies to Class A, Class I, and Class II urban buses of M2 and M3 classes. Long-distance buses and tourist buses can refer to and adopt it for use.

Publish Date: 2005-01-13

CJ/T 189-2004 Steel wire mesh-reinforced plastic (polyethylene) composite pipe

Publish Date: 2004-03-25

CJ/T 191-2004 Plate heat exchanger units

This standard specifies the model designation, basic parameters, technical requirements, test methods, and inspection rules, as well as the marking, packaging, transportation, and storage requirements for plate heat exchanger units (hereinafter referred to as "units").
This standard applies to plate heat exchanger units used in heating, air conditioning, and domestic hot water systems.

Publish Date: 2004-03-25

CJ/T 32-2004 Welding procedure qualification for liquified petroleum gas cylinders

This standard specifies the welding process evaluation procedures, inspection rules, and test methods for liquefied petroleum gas steel cylinders.
This standard applies to the welding process evaluation of steel welded cylinders (hereinafter referred to as "cylinders") used in normal environmental temperatures (–40 to 60) °C, with a test pressure not exceeding 3.3 MPa and a nominal volume of less than 240 L for refillable liquefied petroleum gas.

Publish Date: 2004-03-25

CJ/T 33-2004 Technological process evaluation of heat treatment for LPG cylinders

This standard specifies the basic requirements for the heat treatment process and equipment of liquefied petroleum gas cylinders, the evaluation procedure of the heat treatment process, and quality inspection, etc.
This standard applies to welded steel cylinders for liquefied petroleum gas that are used under normal environmental temperatures (–40°C to +60°C), with a water pressure test pressure not exceeding 3.3 MPa and a nominal volume of less than 240 L, which can be refilled repeatedly (hereinafter referred to as "cylinders").

Publish Date: 2004-03-25

CJ/T 35-2004 Rules for packaging and transportation of liquefied petrol eum gas cylinders

This standard specifies the requirements for the transportation and packaging of liquefied petroleum gas cylinders during the manufacturing process.
This standard applies to welded steel cylinders for liquefied petroleum gas that can be refilled repeatedly, with a normal ambient temperature of -40°C to 60°C, a water pressure test not exceeding 3.2 MPa, and a nominal volume of not less than 150 L. This standard does not apply to in-use steel cylinders.

Publish Date: 2004-03-25

CJ/T 188-2004 Technical requirements of utility meters data transmission

This standard specifies the basic principles, interface forms, and physical performance of data transmission for household metering instruments (hereinafter referred to as "instruments"), including water meters, gas meters, heat meters, and other instruments. It also stipulates the requirements for data links, data identification, data security, and data expression formats.
This standard is applicable to centralized meter reading systems that enable data exchange between master stations and slave stations, either in a one-to-one or one-to-many configuration.

Publish Date: 2004-02-12

CJ/T 185-2003 Urban bus stop annunciator

This standard specifies the terms and definitions, model compilation methods, basic composition, technical requirements, test methods, inspection rules, marking, packaging, and storage of city bus announcement devices (hereinafter referred to as announcement devices).
This standard applies to announcement devices for city buses. Announcement devices for other vehicles may be adopted with reference to this standard.

Publish Date: 2003-07-11

CJ/T 172-2002 Mini impact dot matrix printer of electronic taximeter

This standard specifies the technical requirements, test methods, inspection rules, marking, packaging, and storage for micro impact dot matrix printers used in taxi meters.
This standard applies to impact dot matrix micro printers (hereinafter referred to as printers) that are compatible with taxi meters.

Publish Date: 2003-01-14