This standard specifies the technical requirements, test methods, inspection rules and marking, packaging, transportation, storage and other general technical conditions for copper pipes and fittings used in construction. This standard applies to construction copper pipe tee joints, copper pipe reducing tee joints, copper pipe 45° elbows, copper pipe 90° elbows, copper pipe reducing joints, copper pipe casing joints, and copper pipe caps .
JG/T 3031.1-1996 history
2019CJ/T 117-2018 Socket metal pipe fittings for construction
2000CJ/T 117-2000 Copper tube fittings for construction (Spigot and socket joint)
1996JG/T 3031.1-1996 General specification for copper pipe fittings for building
JG/T 3031.1-1996 General specification for copper pipe fittings for building was changed to CJ/T 117-2000 Copper tube fittings for construction (Spigot and socket joint).