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Bitumen VG 20

Bitumen Specification

Viscosity Grade Analysis

SpecificationAcceptable RangeResultTest MethodExplanations
Absolute ViscosityMin 16001922ASTM – D4402at 60°c , Poises
Kinematic ViscosityMin 300317ASTM – D4402at 135°c , c.st
DuctilityMin 100>100ASTM – D113at 25°c , cm
Solubility99.0 Min99.8ASTM – D2042in CCL4 , %
Specific Gravity1.01-1.061.022ASTM – D70at 25°c
Spot TestNegativeNegativeT102in Naphtha
Flash Point220 Min332ASTM – D92°c
Penetration60-8070ASTM – D5at 25°c , mm/10
Softening PointMin 4547.8ASTM – D36°c
Test on Residue From Thin Film Oven Test (T.F.O.T)
Raito ViscosityMax 4.01.9ASTM – D4402at 60°c , %
DuctilityMin 5076ASTM – D113at 25°c , cm
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