1.1 This standard covers deviation for untoleranced dimensions of grey iron castings and deals with three classes of deviations.
1.2 The class of deviations applicable shall be mutually agreed upon between the purchaser and the manufacturer at the time of enquiry and order.
IS 5519-1979 history
1979IS 5519-1979 Deviations from dimensional and quality tolerances of gray iron castings