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ability of an element of construction to reduce the passage of hot and/or cold gases or smoke from one side of the element to the other to below specified levels (EN 1363-1)
passage des fumées . EKI terminibaas Esterm. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//esterm/passage%20des%20fum%C3%A9es/1/fra (19.07.2026)