This International Standard specifies the method and conditions of test for the determination of the breaking strength and elongation of individual f ibres.
The method is applicable to man-made fibres, including crimped fibres, provided that the available length of fibre enables a gauge length (effective distance between the fibre mountings) of 10 mm or 20 mm to be used. The accuracy in the measurement of the elongation which arises from increased test length indicates that, wherever possible, the longer gauge length should be used.
NOTE — The field of application is limited to man-made fibres. In fact, for these fibres, the variations in the linear density, for a given type of fibre, are small; this is not so for natural fibres, for which results obtained by this method (test on an individual fibre) will be of dcbatable significance.