BITUMEN 20/30 SPECIFICATION OF BITUMEN 20/30 Name Specification Test Method Specific gravity @25/25 ˚C 1.01-1.06 D-70 Penetration @25 ˚C 20-30 D-5 Softening point ˚C 55-63 D-36 Loss on heating (wt)% 0.2 max D-6 Drop in penetration after heating % 20 max D-6 & D-5 Flash point ˚C 230 min D-92 Solubility in CS2 (wt) 99.5 […]