Indian standard recommendations for limits and for sizes above 500 mm upto 3 to 150 mm 
Indian Standards Institution 
 - New Delhi  Indian Standards Institution  1974 
 - 21p. 
<br/><br/> IS 2101 : 1962 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Machine Tools<br/> Standards <br/>NASA Thesaurus 
<br/><br/><label>Universal Decimal Class. No.: </label>083.7:621.753.2  / ISI