ISO 6989:1981
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ISO 6989:1981
13551

Status : Published (Under review)

This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
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Format Language
std 1 42 PDF
std 2 42 Paper
  • CHF42
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Abstract

Specifies three methods for determination - method A: on a straightened fibre on a graduated rule, under a light tension applied with the aid of forceps and grease; - method B: measurement, using an opisometer, of the length of the image of fibre enlarged by projection on a screen; - method C: by use of a semi-mechanical device. - Intended to replace two existing International Standard, ISO 270 and ISO 1822.

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General information

  •  : Published
     : 1981-05
    : International Standard confirmed [90.93]
  •  : 1
     : 6
  • ISO/TC 38/SC 23
    59.060.01 
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