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VG 20
Bitumen Specification
Viscosity Grade Analysis
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Explanations
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Test Method
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Result
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Acceptable Range
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Specification
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at 60°c , Poises
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ASTM – D4402
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1922
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Min 1600
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Absolute Viscosity
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at 135°c , c.st
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ASTM – D4402
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317
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Min 300
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Kinematic Viscosity
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at 25°c , cm
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ASTM – D113
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>100
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Min 100
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Ductility
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in CCL4 , %
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ASTM – D2042
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99.8
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99.0 Min
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Solubility
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at 25°c
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ASTM – D70
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1.022
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1.01-1.06
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Specific Gravity
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in Naphtha
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T102
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Negative
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Negative
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Spot Test
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°c
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ASTM – D92
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332
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220 Min
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Flash Point
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at 25°c , mm/10
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ASTM – D5
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70
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60-80
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Penetration
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°c
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ASTM – D36
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47.8
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Min 45
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Softening Point
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Test on Residue From Thin Film Oven Test (T.F.O.T)
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at 60°c , %
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ASTM – D4402
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1.9
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Max 4.0
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Raito Viscosity
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at 25°c , cm
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ASTM – D113
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76
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Min 50
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Ductility
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3485
Visits
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