ISO 20754:2018

Textiles — Man-made fibres — Determination of shape factors in cross section

ISO 20754:2018 specifies methods for the determination of shape factors in the cross-section of man-made fibres.

Textiles — Fibres fabriquées — Détermination des facteurs de forme dans la section

General Information

• Status: Published
• Publication Date: 04-Apr-2018
• ICS: 59.060.20 - Man-made fibres
• Technical Committee: ISO/TC 38/SC 23 - Fibres and yarns
• Drafting Committee: ISO/TC 38/SC 23/WG 6 - Fibres - Man-made
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 25-Sep-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 20754
First edition
2018-04
Textiles — Man-made fibres —
Determination of shape factors in
cross section
Textiles — Fibres fabriquées — Détermination des facteurs de forme
dans la section
Reference number
ISO 20754:2018(E)
©
ISO 2018

---------------------- Page: 1 ----------------------
ISO 20754:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 20754:2018(E)

Contents  Page
Foreword .iv
1  Scope . 1
2  Normative references . 1
3  Terms and definitions . 1
4  Principle . 2
5  Apparatus . 2
6  Testing conditions and specimen . 2
6.1 Testing conditions . 2
6.2 Sampling . 3
6.3 Preparation of the test specimen . 3
6.3.1 Microtome method . . . 3
6.3.2 Plate method . 3
7  Testing procedure . 3
7.1 Calibration of indicating value. 3
7.2 Image capture of fibre cross-section . 3
7.3 Number of tests . 4
7.4 Shape factor in radius . 4
7.5 Shape factor in cross-section . 4
7.6 Coefficient of perimeter .
...