Bitumen Specification
Viscosity Grade Analysis
Explanations
Test Method
Result
Acceptable Range
Specification
at 60°c , Poises
ASTM – D4402
3912
Min 3200
Absolute Viscosity
at 135°c , c.st
426
Min 400
Kinematic Viscosity
at 25°c , cm
ASTM – D113
>100
Min 100
Ductility
in CCL4 , %
ASTM – D2042
99.87
99.0 Min
Solubility
at 25°c
ASTM – D70
1.028
1.01-1.06
Specific Gravity
in Naphtha
T102
Negative
Spot Test
°c
ASTM – D92
344
220 Min
Flash Point
at 25°c , mm/10
ASTM – D5
47
40-60
Penetration
ASTM – D36
53.6
Min 50
Softening Point
Test on Residue From Thin Film Oven Test (T.F.O.T)
at 60°c , %
1.5
Max 4.0
Raito Viscosity
38
Min 25