Schüco AWS 90 XR, has been certified as conforming to ISO 16933 in field tests. The certified DK window with sash panel dimensions of 1210 mm x 1840 mm was able to withstand a pressure wave of 169 kPa that was produced by an explosion from a distance of 19m as a test unit. With that, the uni was able to reach the EXV 19 (E) classification, conforming to ISO 16933.