Excess water was decanted by inverting the tubes over absorbent paper and samples were allowed to drain. For oil absorption, 10 ml refined sunflower oil were used. The weights of water and bound oil samples were calculated by difference
Excess water was decanted by inverting the tubes over absorbent paper and samples wereallowed to drain. For oil absorption, 10 ml refined sunflower oil were used. The weights of water and bound oil samples were calculated by difference