1. BS EN 17020-2. Extended application of test results on durability of selfclosing for fire resistance and/or smoke control doorsets and openable windows. Part 2. Durability of self-closing of steel rolling shutters (6th May 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (73 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗