90.93 Standard confirmed Nov 25, 2022
ISO
ISO/TC 24/SC 8 Test sieves, sieving and industrial screens
International Standard
73.120 Equipment for processing of minerals
Describes three patterns using round (circular) and square perforations. The sizes of holes range down to 2 mm for square holes and to 0.5 mm for round holes. Five ratios of pitch to hole are specified which result in nominal open areas ranging from about 60 % to 23 %.
PUBLISHED
ISO 7805-2:1987
90.93
Standard confirmed
Nov 25, 2022