Keywords:
Consistency (mechanical property), Creep internal pressure proof tests, Definitions, Departure from circularity, Dimensions, Fasteners, Finishes, Hydraulic pressure test, Materials, Moulding materials, Pipe connectors, Pipe couplings, Plastics, Polyphenylene sulfone, Quality, Quality requirements, Specification (approval), Strength properties, Testing, Thermoplastic, Thermoplastic polymers