BS EN 13476-2-2018 無壓地下排水和污水塑料管系統.未增塑聚氯乙烯(PVC-U)、聚丙烯(PP)和聚乙烯(PE)結構壁管系統.A型、有平滑內外表面的管和配件及系統用規范
Plastics piping systems for non-pressure underground drainage and sewerage. Structured-wall piping systems of unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE). Specifications for pipes and fittings with smooth internal