2023DIN EN 17020-1:2023-07 Extended application of test results on durability of self-closing for fire resistance and/or smoke control doorsets and openable windows - Part 1: Durability of self-closing of hinged and pivoted steel doorsets; German version EN 17020-1:2022
2023DIN EN 17020-1:2023 Extended application of test results on durability of self-closing for fire resistance and/or smoke control doorsets and openable windows - Part 1: Durability of self-closing of hinged and pivoted steel doorsets
2021DIN EN 17020-1:2021-06 Soil quality - Direct extraction of soil DNA (ISO 11063:2020); German version EN ISO 11063:2020