Historical
DIN EN ISO 717-1:2013
Acoustics - Rating of sound insulation in buildings and of building elements - Part 1: Airborne sound insulation (ISO 717-1:2013); German version EN ISO 717-1:2013
This standard defines a method whereby the frequency dependent valves of airborne sound insulation can be converted into a single number characterizing the acoustical performance. It applies to buildings and to interior building elements (such as walls, floors, doors..)
Deutsches Institut für Normung [din]