VG 20

                                                            Bitumen Specification

                                                               Viscosity Grade Analysis

 

Explanations

Test Method

Result

Acceptable Range

Specification

at 60°c , Poises

ASTM – D4402

1922

Min 1600

Absolute Viscosity

at 135°c , c.st

ASTM – D4402

317

Min 300

Kinematic Viscosity

at 25°c , cm

ASTM – D113

>100

Min 100

Ductility

in CCL4 , %

ASTM – D2042

99.8

99.0 Min

Solubility

at 25°c

ASTM – D70

1.022

1.01-1.06

Specific Gravity

in Naphtha

T102

Negative

Negative

Spot Test

°c

ASTM – D92

332

220 Min

Flash Point

at 25°c , mm/10

ASTM – D5

70

60-80

Penetration

°c

ASTM – D36

47.8

Min 45

Softening Point

Test on Residue From Thin Film Oven Test (T.F.O.T)

at 60°c , %

ASTM – D4402

1.9

Max 4.0

Raito Viscosity

at 25°c , cm

ASTM – D113

76

Min 50

Ductility

 


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