ISO 3:1973

Preferred numbers — Series of preferred numbers

STANDARD published on 1.4.1973

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The information about the standard:

Designation standards: ISO 3:1973
Publication date standards: 1.4.1973
The number of pages: 4
Approximate weight : 12 g (0.03 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 3:1973 :

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.