Code
    I.S. EN 13598-1:2010
    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