ČSN EN 12691
Hydroizolační pásy a fólie - Asfaltové, plastové a pryžové pásy a fólie pro hydroizolaci střech - Stanovení odolnosti proti nárazu

ČSN EN 12691

This European Standard specifies a test for puncture by impact on sheets for roof waterproofing. Mechanical stress on waterproofing sheets ranges from static long-term loads to dynamic short-term loads. This method represents the dynamic category of load where puncture may be caused by impact.
This European Standard may also be applied for other purposes of waterproofing.