Keywords:
Compression fittings, Depressurized, Elastomers, Fittings, Inspection, Joints, Leak tests, Leaktightness tests, Materials, Pipe couplings, Pipe fittings, Pipelines, Pipes, Piping system, Plastic pipelines, Plastic pipes, Plastics, Pressure tests, Quality, Quality requirements, Sealing rings, Specification (approval), Test performance, Testing, Testing conditions, Thermoplastic polymers, Tightness, Underground, Underground installations