Codes & Standards - Purchase
ISO 6989:1981
Textile fibres -- Determination of length and length distribution of staple fibres (by measurement of single fibres)
SKU: iso_013551_105666
Published by ISO
Publication Year 1981
1 Edition
6 pages
Product Details
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.