BUREAU OF INDIAN STA INDIAN STANDARD ISO SYSTEM OF LIMITS AND FITS : PART 1 BASES OF TOLERANCES, DEVIATIONS AND FITS. IS - 2nd rev. ed. 1997 - NEW DELHI BUREAU OF INDIAN STANDARDS. - 30 Subjects--Topical Terms: ISO SYSTEM OF LIMITS AND FITS Dewey Class. No.: 621 / BUR