Descriptors | Reducing couplings, Impact testing, Testing conditions, Waste-water drainage, Test equipment, Corrosion tests, Pipe connections, Thermoplastic polymers, Dimensions, Pipe couplings, Softening point, Marking, Polyvinyl chloride, Leak tests, Thickness, Impact strength, Polymers, Thermal-cycling tests, Stress corrosion, Pipe fittings, Quality control, Screwed fittings, Dimensional changes, Performance, Polypropylene, Plastics, Bend couplings, Unplasticized polyvinyl chloride, Polyethylene, Chemical-resistance tests, Thermal testing, Drainage, Pipe caps, Acrylonitrile butadiene styrene, Size, Pipes, Domestic |