Standards

CJ/T 117-2018 Active

CJ/T 117-2018 Spigot and socket joint metal tube fittings for construction

This standard specifies the classification and marking, materials, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of socket-type metal pipe fittings for building use (hereinafter referred to as "fittings").
This standard applies to fittings used in stainless steel or copper pipelines for transporting liquids with a nominal pressure not exceeding 1.6 MPa or gases with a nominal pressure not exceeding 0.4 MPa, and with a nominal size not exceeding DN300. The transported medium includes non-corrosive gases and liquids such as cold and hot domestic water, drinking water, gas, compressed air, and oil.

Publish Date: 2018-10-30

CJ/T 135-2018 Active

CJ/T 135-2018 Flower bulbs for green space and landscape—Bulb

This standard specifies the requirements, testing methods, inspection rules, marking, packaging, transportation, and storage of bulb flowers for landscape gardening.
This standard is applicable to bulb flowers used for planting in landscape gardening.

Publish Date: 2018-10-30

CJ/T 250-2018 Active

CJ/T 250-2018 High density polyethylene pipes and fittings for drainage inside buildings

This standard specifies the materials, product classification and specifications, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of pipes and fittings made from polyethylene resin as the main raw material, which are extruded into pipes and molded or secondary processed into fittings.
This standard applies to high-density polyethylene (HDPE) pipes and fittings used in wastewater, sewage, and rainwater drainage systems of buildings.
The high-density polyethylene pipes specified in this standard are suitable for drainage with a temperature range of 0°C to 65°C, and an instantaneous drainage temperature not exceeding 95°C; they are also suitable for environments with a temperature range of -40°C to 65°C.

Publish Date: 2018-10-30

CJ/T 526-2018 Active

CJ/T 526-2018 Stabilizer for soft soil

This standard specifies the classification and marking, requirements, test methods, inspection rules, and marking, packaging, transportation, and storage of soft soil stabilizers.
This standard applies to inorganic non-cement stabilizers used to stabilize soft soils and other fine-grained soils.

Publish Date: 2018-10-30

CJ/T 527-2018 Active

CJ/T 527-2018 Technical requirements for road lighting installation

This standard specifies the product classification and models of road lighting poles, general requirements, specifications, test methods, inspection rules, as well as marking, packaging, transportation, and storage, etc.
This standard applies to lighting poles with a height of less than 20 m, which are used for lighting in urban roads, highways, squares, parks, courtyards, etc. It does not apply to special-shaped or combined decorative lighting poles.

Publish Date: 2018-10-30

CJ/T 529-2018 Active

CJ/T 529-2018 Cold-mix asphalt recycling agents

This standard specifies the classification and scope of application, technical requirements, test methods, inspection rules, marking, transportation, and storage of asphalt recycling agents for cold mixing.
This standard applies to emulsion-type recycling agents used in factory-mixed cold recycling and on-site cold recycling of asphalt pavements on urban roads and highways of various grades, with the aim of improving the stability, permeability, and anti-aging properties of asphalt and emulsified asphalt.

Publish Date: 2018-10-30

CJ/T 534-2018 Active

CJ/T 534-2018 Circulating water pump for swimming pool and SPA pool

This standard specifies the types, models, structural characteristics, and classification of circulating water pumps for swimming pools and spas (hereinafter referred to as pumps), as well as their basic parameters, materials, requirements, test methods, inspection rules, marking, packaging, transportation, and storage. This standard applies to single-stage end-suction plastic centrifugal pumps and metal centrifugal pump units used in swimming pools, spas, hot spring pools, and hot water massage tubs. The water temperature transported by plastic pumps should not exceed 50 °C, while that transported by metal pumps should not exceed 100 °C.

Publish Date: 2018-10-30

CJ/T 535-2018 Active

CJ/T 535-2018 Internet of things water meter

This standard specifies the structure, classification, and models of IoT water meters, as well as their requirements, test methods, inspection rules, marking, packaging, transportation, and storage.
This standard applies to drinking cold water meters and hot water meters that use 2G, 3G, 4G, NBIoT, eMTC, and other cellular mobile communication technologies and their subsequent evolutionary technologies, access the public land mobile network in China, and comply with the relevant provisions of GB/T 778.1, GB/T 778.2, and GB/T 778.4.

Publish Date: 2018-10-30

CJJ 63-2018 Active

CJJ 63-2018 Technical standard for polyethylene(PE) gaseous fuel pipeline engineering

本标准适用于工作温度在-20℃～40℃，工作压力不大于0.8MPa，公称外径不大于630mm的埋地聚乙烯燃气管道工程的设计、施工及验收

Publish Date: 2018-10-18

CJJ/T 120-2018 Active

CJJ/T 120-2018 Technical standard for electrical & automation engineering of city drainage system

本标准适用于城镇排水系统，包括排水泵站、调蓄设施、污水处理厂和管网等的电气、自动控制及信息管理系统的设计、施工及验收

Publish Date: 2018-10-18

CJJ/T 284-2018 Active

CJJ/T 284-2018 Technical standard for mechanical pipe jacking of heating engineering

本标准适用于热力机械顶管工程的设计、施工及验收

Publish Date: 2018-10-18

CJ/T 246-2018 Active

CJ/T 246-2018 Preformed directly buried steam insulating pipes and fittings for urban heating

This standard specifies the terms and definitions, general requirements, requirements, test methods, inspection rules, marking, transportation, and storage of prefabricated directly buried steam insulation pipes (hereinafter referred to as insulation pipes) and pipeline accessories for urban heating.
This standard applies to the manufacture and inspection of directly buried steel outer-shielded steam insulation pipes and pipeline accessories for transporting steam media with a working pressure of less than or equal to 2.5 MPa and a temperature of less than or equal to 350 ℃.

Publish Date: 2018-08-24