BS ISO 19469-1. Plastic piping systems for non pressure underground drainage. Single wall corrugated piping systems of polyethylene (PE), polypropylene (PP) and unplasticized poly(vinyl chloride) (PVC-U). Part 1. General requirements and performance characteristics|Spigot-and-socket joints, Underground, Sewerage, Pipes, Water supply and waste systems (buildings), Polypropylene, Dimensional tolerances, Stiffness, Thickness, Impact testing, Drop tests, Mechanical testing, Pipework systems, Performance, Elastomers, Plastic pipelines, Flexibility, Sealing rings, Diameter, Drainage, Size, Length, WATER SUPPLY AND WASTE SYSTEMS (BUILDINGS), Marking, Plastics, Flow rates, Thermal stability, Pipe fittings, Thermoplastic polymers