specification of bitumen penetration grade 20/30BAKHTAR BITUMEN Bitumen 20/30Test methodUnitSpecificationPenetration @ 25°CEN 1426mm/1020/30Softening point °CEN 1427°C53/65Kinematic Viscosity @ 135⁰CEN 12595mm2/s530 minFlashpoint °CEN 22592°C240 minSolubility is CS2(wt) %EN 12592wt %99 min