Division 4.2.4 Apparatus

Ordinary laboratory apparatus, and:

1. (a)

   balance, capable of weighing to the nearest 0,01 g;

2. (b)

   beakers, of capacity 500 ml;

3. (c)

   funnel, of plastic materials, preferably with a cylindrical wall at the upper end, diameter approximately 200 mm;

4. (d)

   test sieve, aperture 0,5 mm, fitting into the funnel;

   Note: The size of the funnel and sieve is such as to ensure that only a few granules lie one above another and the oil is able to drain easily.

5. (e)

   filter paper, rapid filtering grade, creped, soft, mass 150 g/m²;

6. (f)

   absorbent tissue (laboratory grade).