Specification of bitumen penetration grade 100/150BAKHTAR BITUMEN Bitumen 100/150Test methodUnitSpecificationPenetration @ 25°cIP 49mm/10100/150Softening point °cIP 58°C39/47Kinematic Viscosity @ 135⁰CIP 370mm2/s175 minFlashpoint °cIP 36°C230 minSolubility is CS2(wt) %IP 47wt %99 min