Apparatus Required :-

1. Flat glass plate, 10 mm thick and about 45 cm square.

2. Spatula

3. Balance, sensitive to 0.01 g

4. Thermostatically controlled oven

5. Airtight and non-corrodible containers for moisture content determination.

6. Wash bottle containing distilled water

7. 425 mircon IS sieve

8. 3 mm diameter rod of about 10 cm length.