CJ/T 120-2016 (English Version) PDF

Scope: This standard specifies the terms and definitions, classification and labeling, materials, requirements, test methods, inspection rules, marking, packaging, transportation and storage of plastic-coated composite steel pipes for water supply (hereinafter referred to as plastic-coated steel pipes). This standard applies to the design, manufacturing and inspection of plastic-coated steel pipes for water supply with a nominal size not larger than DN2 000 and a conveying medium temperature below 45°C. The plastic coating process and coating requirements for non-threaded plastic-coated steel pipe fittings can be implemented with reference to this standard.

CJ/T 120-2016 Referenced Document

CJ/T 156 Grooved couplings
GB/T 1033 Test method for density and relative density of plastics
GB/T 1040.1 Plastics—Determination of tensile properties—Part 1:General principles*， 2018-12-28 Update
GB/T 13295 Amendment No. 1 for ductile iron pipes, fittings and accessories for water and gas
GB/T 1633 Plastics--Thermoplastic materials--Determination of vicat softening temperature(VST)
GB/T 17219 Standard for safety evaluation of equipment and protective materials in drinking water system
GB/T 2914 Plastics. Homopolymer and copolymer resins of vinyl chloride. Determination of volatile matter( including water)
GB/T 3091 Welded steel pipes for low pressure liquid delivery
GB/T 6554 Resin based reactive compounds used for electrical insulation Part 2:Methods of test:Methods for coating pourders for electrical purposes
GB/T 7306.1 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 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 8163 Seamless steel pipes for liquid service*， 2018-05-14 Update
GB/T 9119 Slip-on-welding plate steel pipe flanges
GB/T 9124 Specifications for steel pipe flanges
SY/T 5037 Submerged arc welded steel pipes for general fluid transportation pipelines*， 2023-10-11 Update