Reference number
ISO 1890:2009
© ISO 2024
International Standard
ISO 1890:2009
Reinforcement yarns — Determination of twist
Edition 4
2009-06
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Published (Edition 4, 2009)
This publication was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 1890:2009

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Format
CHF 42
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Abstract

ISO 1890:2009 specifies a method for the determination of twist in yarns made from textile glass, carbon, aramid or any other reinforcement fibres.

The method applies to single yarns (one twist) and to folded or cabled yarns (two or more twists). For folded and cabled yarns, the method is generally applied only to the final twist step.

The International Standard is applicable to package-wound yarns. If the measurement is carried out on yarns taken from a beam (or warp) or from a fabric, the result is of an indicative nature only.

The method is not applicable to products made from staple fibres.

General information

  • Status
     : Published
    Publication date
     : 2009-06
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 4
    Number of pages
     : 5
  • Technical Committee :
    ISO/TC 61/SC 13
    ICS :
    59.100.01 
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