•Micro test sieves: Come in sizes of 1-1/2", 3", 4", 5" &6"diameter with suitable lid & receiver.•Coarse test sieves: These of 8", 12" & 18" diameter with round or square holes size 4.75 to 100 mm.•Fine test sieves: These of 12" & 18" diameter available in size of 4 to 500 mm.