Descriptors | Polyethylene, Polymers, Plastics, Pipes, Pressure pipes, Water, Composition, Carbon black, Fillers, Antioxidants, Density, Dimensions, Diameter, Thickness, Test pressure, Tensile strength, Elongation at fracture, Sampling methods, Marking, Coils, Length, Determination of content, Test specimens, Thermal testing, Hydraulic tests |