RS ISO 1973: 2021
Textile fibres — Determination of linear density — Gravimetric method and vibroscope method


This document specifies a gravimetric method and a vibroscope method for the determination of the
linear density of textile fibres applicable respectively to:
a) bundles of fibres;
b) individual fibres.
Useful data can be obtained on man-made fibres and, with less precision, on natural fibres.
This document only applies to fibres which can be kept straight and, in the case of bundles, parallel,
during test preparation. It is properly applicable when the fibres are readily freed of crimp. The methods
in this document are not applicable to tapered fibres.
The vibroscope method is not always applicable to hollow and flat (ribbon-like) fibres

General Information

RS ISO 1973: 2021ADOPTED ISO STANDARDSTextiles and leather technology19Third Edition
Nov 2021
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