This part of EN 442 defines the technical specifications and requirements of radiators and convectors to be installed in heating systems in buildings including evaluation of conformity. This European Standard deals with metallic radiators and convectors installed in a permanent manner in construction works, fed with water or steam at temperatures below 120 °C, supplied by a remote heat source. This European Standard does not apply to fan assisted radiators, fan assisted convectors and trench convectors and to independent heating appliances, accessories like valves, water flow control devices etc. This European Standard also defines the additional common data that the manufacturer shall provide to the trade in order to ensure the correct application of the products.