scope:

This European Standard specifies the requirements for solid-wall pipes, fittings and the system of polypropylene (PP) piping systems intended to be used for general purpose direct buried ducting. It also specifies the test parameters for the test methods referred to in this standard. EN 14285 is applicable to PP pipes and fittings, their joints and to joints with components of other plastics and non-plastics materials intended to be used for general purpose buried ducting. EN 14285 is applicable only to solid-wall PP pipes of the following types: - with plain ends; - with cylindrical socket; - with integral tapered push-fit socket; - with integral ring seal socket, with or without a coating for internal lubrication, a colour coating or a coating for other identification purposes and to fittings that are manufactured from pipes and/or mouldings, including pipes and fittings with nominal outside diameters specified in annex A.