"Decontamination material";"Decontamination factor DF" "Decontamination method" foam;jet;"dry (film)" Glass;30;30;"80 – 100" "Concrete, not painted";10;20;10 "Concrete, painted";15;18;20 "Tiles, encaustic";20;25;"60 – 80" "Iron, painted";20;25;"70 – 90" "Iron, galvanized";20;25;"70 – 90" "Roofing, bitumen";2;5;"70 – 90" "Wood, painted";15;25;"60 – 80" Asphalt;2;5;"30 – 40"