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Nakhle Barani Pardis (Since 1997)



Iran  Bitumen 40 / 50

40-50 Bitumen

The bitumen is provided during the process of oxidation of vacuum bottom in bitumen production units. Due to its high air blowing and penetration, it is used in tropical areas.

Analysis Unit Limit Test Method
Density @ 25°C kg/m³  1010-1060  ASTM D70 or D3289
Penetration @ 25°C mm/10  40-50 ASTM D5
Softening Point  °C 52-60 ASTM D36
Ductility @ 25°C  cm 100min ASTM D113
Loss on heating  wt.% 0.2max ASTM D6
Drop in penetration after heating  % 20max ASTM D5
Flash point  °C 232 min ASTM D92
Solubility in T richloroethvlene wt.% 99.0 min ASTM D2042
Spot test  --- Negative A.A.S.H.O.T 102
Viscosity @ 60°c  P 4000±800  ASTM D2171
Viscosity @ 35°c  cSt 400min ASTM D2170
Test on Residue From Thin Film Oven Test (ASTM D 1754) 
Retained Penetration after (T.F.O.T), %  % 58min ASTM D5
Ductility , (25°C), 5cm/min, cm after TFOT  cm 50 ASTM D113
Viscosity @ 60°c  P 20000max ASTM D2171