Mechanical security devices – Part 2: Additional burglar resistant products for windows and doors – Requirements and test methods
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/2013

Mechanical security devices – Part 2: Additional burglar resistant products for windows and doors, requirements and test methods
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2002