What EN 1634 Ratings Mean for Cleanroom Doors
Cleanroom door fire resistance under EN 1634 describes how long a complete door assembly holds back flames and heat in a standardized furnace test. The rating combines integrity (E), insulation (I), and a duration in minutes, producing classes such as EI30, EI60, and EI120.
Furnace testing is only half the story; see how EI ratings on industrial roller shutters translate the same test evidence into a classificatio