Status : Published (Under review)

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
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  • CHF42
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Abstract

Describes three patterns using round (circular) and square perforations. The sizes of holes range down to 2 mm for square holes and to 0.5 mm for round holes. Five ratios of pitch to hole are specified which result in nominal open areas ranging from about 60 % to 23 %.

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General information

  • Status
     : Published
    Publication date
     : 1987-12
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 5
  • Technical Committee :
    ISO/TC 24/SC 8
    ICS :
    73.120 
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