1 cut sponge, size 1 × 1 cm2 Be weighed and distilled water 5 ml Leave the 1 nights then take a sponge soaking came to weigh and calculate the Percentage value of porosity without.
The first cut sponges 1 × 1 cm2 scale to weigh. 5 ml distilled water and leave it for one night, then soaked sponge was weighed again and calculate the Percentage of porosity by.