Ключевые слова:
Pipes, Plastics, Unplasticized polyvinyl chloride, Polyvinyl chloride, Water, Potable water, Pressure pipes, Joints, Dimensions, Thickness, Diameter, Length, Depth, Performance, Performance testing, Testing conditions, Dimensional changes, Defects, Pressure, Toughness, Softening point, Strength of materials, Hydrostatic pressure, Weather resistance, Tensile strength, Elastomers, Sealing rings, Marking, Classification systems, Mechanical testing, Pressure testing, Bend testing, Specimen preparation