This document covers hinged or pivoted doorsets with timber based leaves, timber framed glazed doors and openable timber framed windows. It prescribes the methodology for extending the application of test results obtained from test(s) conducted in accordance with EN 1634-1. Subject to the completion of the appropriate test or tests the extended application may cover all or some of the following examples: uninsulated (E), radiation (EW) or insulated (EI1 or EI2) classifications; glazed elements, louvres and/or vents; side, transom or overpanels; items of building hardware; decorative finishes; intumescent, smoke, draught or acoustic seals; alternative supporting construction(s).