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ISO 1890:2009

Reinforcement yarns — Determination of twist

May 20, 2009

General information

90.93     Oct 14, 2020

ISO

ISO/TC 61/SC 13

International Standard

59.100.01  

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 1890:1997

NOW

PUBLISHED
ISO 1890:2009
90.93 Standard confirmed
Oct 14, 2020