Preferred numbers — Series of preferred numbers
NORM herausgegeben am 1.4.1973
Bezeichnung normen: ISO 3:1973
Ausgabedatum normen: 1.4.1973
Zahl der Seiten: 4
Gewicht ca.: 12 g (0.03 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: Preferred numbers are the conventionally rounded of term values of geometrical series, including the integral powers of 10 and having as ratios special factors in accordance with the specified tables. Basic, expectional, R 80 and derived series are designated.