Appearance & Odour
Dark colored liquid, Unpleasant characteristic odor
Saturated hydrocarbon limit, residue on
reaction with concentrated sulphuric acid
30% by mass Max.
Specific Gravity at 27 °C
Freedom from water
No separation of water and Caoutchoucine layer at the
bottom of the container
Upto 100 °C - 15% max. | Below 200 °C - 70% min.