增强纱线.捻度的测定

[中文适用范围]： 本国际标准规定了由纺织玻璃、碳、芳纶或任何其他增强纤维制成的纱线捻度的测定方法。 该方法适用于单纱（一捻）和折叠纱或缆纱（两捻或更多捻）。 对于折叠纱和绞纱，该方法通常仅应用于最后的加捻步骤。 本国际标准适用于筒装纱。 如果对取自经轴（或经纱）或织物的纱线进行测量，则结果仅具有指示性。 本方法不适用于短纤维制成的产品。 [外文原描述]： 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.