5. 1 FOR PERLITE ORE
( a) Prepare an approx. 100 g sample of expanded perlite.
( b) Weigh the sample.
( c) The sample shall be then tested by mean of mechanical sieve shaker with the serial
Of sieves indicated in the result table 1 below.
( d) Sieving time shall be not less that 3 mn.
( e) Weigh each sieve content to determine the percentages.
5. 2 FOR EXPANDED PERLITE
( a) Prepare an approx. 20 g sample of expanded perlite ore.
( b) Weigh the sample.
( c) The sample shall be then tested by mean of mechanical sieve shaker with the serial
Of sieves indicated in the result table 2 below.
( d) Sieving time shall be not less that 3 mn.
( e) Weigh each sieve content to determine the percentages.
