BS EN 13598-2:2020 pdf free.Plastics piping systems for non-pressure underground drainage and sewerage Unplasticized poly(vinyl chloride) (PVC-U),polypropylene (PP) and polyethylene (PE)Specifications for manholes and inspection chambers. BS EN 13598-2 This document specifes the definitions and requirements for unplasticized poly(vinyl chloride) (PVC-U), polypropylene (PP) and polyethylene (PE) manholes and inspection chambers intended for non-pressure underground drainage and sewerage systems up to...