Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinyl chloride) (PVC-U) - Specifications for pipes, fittings and the system Ingestion-build-47786 One step in the development

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Plastics piping systems for non-pressure underground drainage and sewerage. Unplasticized poly(vinyl chloride) (PVC-U) - Specifications for pipes, fittings and the system Ingestion-build-47786 One step in the development1 Scope This document specifies the requirements for solid wall pipes with smooth internal and external surfaces, extruded from the same formulation throughout the wall, fittings and the system of unplasticized poly(vinyl chloride) (PVCU) piping systems in the field of non pressure underground drainage and sewerage: buried in ground outside the building structure (application area code "U"), and both buried in ground, within the building structure and