Paragraph 3 APPARATUS

200mm diameter woven-wire test sieves to BS 410 (1986) with apertures of 2.0 mm, 1. 0 mm and 0.5 mm respectively of standard ranges. One lid and one receiver for these sieves.

Balance to weigh to 0.1 gram.

Mechanical sieve shaker (if available) capable of imparting both vertical and horizontal motion to the test sample.