DIN 1995-4
DIN 1995-4 Bitumen and bituminous binders - Requirements for the binders - Part 4: Petroleum cut-back bitumen
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/2005
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/2005