ÖNORM EN 476

This European standard specifies general requirements for components such as pipes, fittings and manholes with their respective joints intended for use in discharge pipes, drains and sewers which operate as gravity systems where any pressure likely to occur is a maximum of 40 kPa. This European standard provides the general basis for the preparation or revision of product standards. It is not applicable for the evaluation of products. It is applicable as a reference for drawing up a product specification, if there is no product standard available. This European standard includes marking, quality control and certification requirements. This European standard comprises: Common requirements for all components; Specific requirements for discharge components for use inside buildings or attached to the external surfaces of buildings; Specific requirements for components for use in drain and sewer systems. In product standards combinations of these requirements may be applied where appropriate, eg: for the components buried in ground inside the building structure. This European standard Covers components to be used in conveying in a satisfactory manner: domestic waste water; rainwater and surface water; and, other waste waters (e.g. industrial waste water) that will not damage the components. This European standard applies to components of circular and other Cross sections. This European standard applies equally to components which are factory-made and to those constructed on site, where applicable.