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ISO 3:1973

ISO 3:1973

Preferred numbers — Series of preferred numbers

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General Information

Status :

Active

Standard Type : Main

Document No : ISO 3:1973

Document Year : 1973

Pages : 4

Edition : 1

Section Volume : Preferred numbers - STANDBY (ISO/TC 19.)

ICS : Metrology and measurement in general (17.020)

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.