This Kenya Standard was prepared by the Plastics Pipes and Fittings Technical Committee under the guidance of the Standards Projects Committee, and it is in accordance with the procedures of the Kenya Bureau of Standards. The standard is one of the series of standards being developed in the country for the plastics rainwater piping systems for above ground external use which utilize the unplasticized poly (vinyl chloride) (PVC-U) materials. During the preparation of this standard, reference was made to the following document: BS EN 12200 Plastics rainwater piping systems for above ground external use — Unplasticized poly (vinyl chloride) (PVC-U) Part 1: Specifications for pipes, fittings and the system. Acknowledgement is hereby made for the assistance derived from this source. This second edition cancels and replaces the first edition of 2009 which has been technically revised. The main changes are: – allowing the use of recycled PVC-U material and the use of acrylic materials for both the outer layer of the pipes and the fittings. – the scope has been extended to cover pipes manufactured by multi-layer co-extrusion. – Normative Reference to EN standards have been updated to ISO standards. – Editorial changes have been made for clarity.
Tubes, pipes and hoses, and fittings therefor, e.g. joints, elbows, flanges, of plastics (HS code(s): 3917); Plastics pipes (ICS code(s): 23.040.20)