This European Standard establishes a system of designation for profiles made of cellular unplasticized poly(vinyl chloride) (PVC-UE) intended to be used for building applications. This part is applicable to light coloured and coloured mono-extruded PVC-UE profiles, co-extruded profiles consisting of a core made of PVC-UE and a skin layer of non-cellular unplasticized poly(vinyl chloride) (PVC-U), and PVC-UE profiles with laminated foil or lacquered-coating. It specifies test methods and test parameters.This method of designation is intended to be used in product specification when the application is specified. NOTE It is recommended to use this method for the designation of PVC-UE profiles for information related to technical literature of the manufacturer, not for the marking of the products.