Code
    EN 13598.1:2003
    Name
    Plastics Piping Systems for non-pressure underground drainage and sewerage - Unplasticised Poly(vinyl Chloride) (pvc-u), Polypropylene (pp) and Polyethylene (pe) - Part 1: Specifications for Ancillary Fittings Including Shallow Inspection Chambers
    WM Specification
    No