TROX Nederland supplies and supports smoke-control components for Dutch mechanical smoke extraction and pressure-differential systems from Spijk in West Betuwe. Its EK-JS and EK-JZ rookafvoerkleppen carry a Declaration of Performance under EN 12101-8:2011 assessed under System 1, with notified body 0761, MPA Braunschweig, having carried out the initial factory inspection, the FPC assessment and continuous surveillance and issued the certificate of conformity. Its BVDAX, BVW, BVREH and BVGAX smoke extract and jet fans are tested to EN 12101-3 in F200 to F600 temperature classes.