Status : Published (Under review)

This standard was last reviewed and confirmed in 2020. Therefore this version remains current.
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  • CHF42
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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.

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General information

  • Status
     : Published
    Publication date
     : 1973-04
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 19
    ICS :
    17.020 
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