Tests carried out on single and double doors at the CSTC (accredited laboratory), in accordance with current European standards:
- EN 1027: Windows and doors – Water tightness – Test method
- EN 12208: Windows and doors – Water tightness – Classification
The standards provide for different classes using two spraying methods, A or B, class A being the most restrictive and the most common (A = incline of 24° / B = incline of 84°).