Paragraph 4 APPARATUS
4.1
Mechanical sieve shaker.
4.2
Sieves with apertures of 0.160 mm and 0.630 mm respectively of standard ranges (diameter 20 cm, height 5 cm).
Mechanical sieve shaker.
Sieves with apertures of 0.160 mm and 0.630 mm respectively of standard ranges (diameter 20 cm, height 5 cm).