SIST EN ISO 1973:2021
(Main)Textile fibres - Determination of linear density - Gravimetric method and vibroscope method (ISO 1973:2021)
Textile fibres - Determination of linear density - Gravimetric method and vibroscope method (ISO 1973:2021)
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.
Textile Fasern - Bestimmung der Feinheit - Gravimetrisches Verfahren und Schwingungsverfahren (ISO 1973:2021)
Dieses Dokument legt ein gravimetrisches Verfahren und ein Schwingungsverfahren zur Bestimmung der Feinheit von textilen Fasern fest, jeweils anwendbar auf
a) Faserbündel;
b) Einzelfasen.
Brauchbare Ergebnisse können bei Chemiefasern erzielt werden und mit geringerer Genauigkeit bei Naturfasern.
Dieses Dokument ist nur für Fasern, die bei der Probenvorbereitung gerade und, im Fall von Bündeln, parallel gehalten werden können, anzuwenden. Es ist nur dann ordnungsgemäß anwendbar, wenn die Fasern leicht entkräuselbar sind. Die Verfahren in diesem Dokument sind nicht auf sich verjüngende Fasern anwendbar.
Das Schwingungsverfahren ist nicht immer bei Hohlfasern und flachen (bandförmigen) Fasern anwendbar.
Fibres textiles - Détermination de la masse linéique - Méthode gravimétrique et méthode au vibroscope (ISO 1973:2021)
Le présent document spécifie une méthode gravimétrique et une méthode au vibroscope pour déterminer la masse linéique des fibres textiles. Ces méthodes s'appliquent respectivement aux:
a) faisceaux de fibres;
b) fibres individuelles.
Des données utiles peuvent être obtenues pour les fibres chimiques, mais elles sont moins fidèles pour les fibres naturelles.
Le présent document ne peut être appliqué qu'aux fibres pouvant être maintenues rectilignes (parallèles dans le cas de faisceaux) pendant la préparation des essais. Il s'applique parfaitement lorsque les fibres sont aisément défrisées. Les méthodes mentionnées dans le présent document ne s'appliquent pas aux fibres profilées.
La méthode au vibroscope n'est pas toujours applicable aux fibres creuses et plates (comme des rubans).
Tekstilna vlakna - Ugotavljanje dolžinske mase - Gravimetrična in vibroskopska metoda (ISO 1973:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2021
Nadomešča:
SIST EN ISO 1973:1999
Tekstilna vlakna - Ugotavljanje dolžinske mase - Gravimetrična in vibroskopska
metoda (ISO 1973:2021)
Textile fibres - Determination of linear density - Gravimetric method and vibroscope
method (ISO 1973:2021)
Textile Fasern - Bestimmung der Feinheit - Gravimetrisches Verfahren und
Schwingungsverfahren (ISO 1973:2021)
Fibres textiles - Détermination de la masse linéique - Méthode gravimétrique et méthode
au vibroscope (ISO 1973:2021)
Ta slovenski standard je istoveten z: EN ISO 1973:2021
ICS:
59.060.01 Tekstilna vlakna na splošno Textile fibres in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 1973
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2021
EUROPÄISCHE NORM
ICS 59.060.01 Supersedes EN ISO 1973:1995
English Version
Textile fibres - Determination of linear density -
Gravimetric method and vibroscope method (ISO
1973:2021)
Fibres textiles - Détermination de la masse linéique - Textile Fasern - Bestimmung der Feinheit -
Méthode gravimétrique et méthode au vibroscope (ISO Gravimetrisches Verfahren und Schwingungsverfahren
1973:2021) (ISO 1973:2021)
This European Standard was approved by CEN on 5 October 2021.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 1973:2021 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 1973:2021) has been prepared by Technical Committee ISO/TC 38 "Textiles" in
collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” the secretariat of
which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by April 2022, and conflicting national standards shall be
withdrawn at the latest by April 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 1973:1995.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 1973:2021 has been approved by CEN as EN ISO 1973:2021 without any modification.
INTERNATIONAL ISO
STANDARD 1973
Third edition
2021-01
Textile fibres — Determination of
linear density — Gravimetric method
and vibroscope method
Fibres textiles — Détermination de la masse linéique — Méthode
gravimétrique et méthode au vibroscope
Reference number
ISO 1973:2021(E)
©
ISO 2021
ISO 1973:2021(E)
© ISO 2021
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
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Published in Switzerland
ii © ISO 2021 – All rights reserved
ISO 1973:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
4.1 General . 2
4.2 Gravimetric method, for bundles of fibres . 2
4.3 Vibroscope method, for individual fibres . 2
5 Apparatus . 2
5.1 Gravimetric method apparatus . 2
5.2 Vibroscope method apparatus . 2
6 Sampling . 3
7 Conditioning and testing atmospheres . 3
8 Procedure. 3
8.1 Gravimetric method . 3
8.2 Vibroscope method . 3
9 Expression of results . 4
9.1 General . 4
9.2 Gravimetric method . 4
9.3 Vibroscope method . 5
10 Test report . 5
Annex A (informative) Examples of calculation of mean linear density . 7
Bibliography .10
ISO 1973:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 23,
Fibres and yarns, in collaboration with the European Committee for Standardization (CEN) Technical
Committee CEN/TC 248, Textiles and textile products, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO1973: 1995), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— ISO 6989 has been added as a normative reference in Clause 2 and 8.2.1;
— a note specifying the tension application has been added in 3.2;
— a correction factor (for measurements on stiff fibres) has been permitted in 4.3, 8.2.1 and 10.3;
— testing equipment without a scale but with a display, respectively connection to a computer system
in 4.3 for linear density reading is permitted;
— reference to 5.2.2 “Forceps” (instead of 5.1.6) has been corrected;
— automatic application of a loading force instead of the use of forceps in 5.2.2 and 8.2.3 is permitted;
— Formulae (A.1) to (A.8) have been corrected;
— grammar and linguistic consistency of definitions in 4.3, 8.1.3, 8.2.2, 9.2.1, A.1 and A.2 have been
reviewed.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved
ISO 1973:2021(E)
Introduction
The linear density of individual fibres is one of the most important physical characteristics in terms
of processability and predictability of the next-step intermediate
...
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