BS EN 17020-3:2022 Extended application of test results on durability of self-closing for fire resistance and/or smoke control doorsets and openable windows Durability of self-closing of steel sliding
BS EN 17020-3:2022This standard BS EN 17020-3:2022 Extended application of test results on durability of self-closing for fire resistance and/or smoke control doorsets and openable windows is classified in these ICS categories:13.220.50 Fire-resistance of building...