ISO 3:1973 Preview

Preferred numbers -- Series of preferred numbers

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.


General information

  • Status :  Published
    Publication date : 1973-04
  • Edition : 1
    Number of pages : 4
  • :
    ISO/TC 19
    Preferred numbers
  • 17.020
    Metrology and measurement in general

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