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Status : Active
Standard Type : Main
Document No : ISO 7805-1:1984
Document Year : 1984
Pages : 5
Edition : 1
Section Volume : Test sieves, sieving and industrial screens (ISO/TC 24/SC 8.)
Describes three patterns using round (circular) and square perforations in low carbon steel plate of 3 mm thickness and above. The sizes of holes range from 125 to 3.15 mm inclusive. Five ratios of pitch to hole are prescribed which result in nominal open areas ranging from about 64 to 23 %.