SIST EN ISO 14616:2004

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoffe - Wärmeschrumpf-Folien aus Polyethylen, Ethylen-Copolymeren und deren Mischungen - Bestimmung der Schrumpfspannung und Kontraktionsspannung (ISO 14616:1997)Plastiques - Films thermorétractables en polyéthylene, en copolymeres d'éthylene et leurs mélanges - Détermination des contraintes de rétraction et de contraction (ISO 14616:1997)Plastics - Heatshrinkable films of polyethylene, ethylene copolymers and their mixtures - Determination of shrinkage stress and contraction stress (ISO 14616:1997)83.140.10Filmi in folijeFilms and sheetsICS:Ta slovenski standard je istoveten z:EN ISO 14616:2004SIST EN ISO 14616:2004en,fr,de01-oktober-2004SIST EN ISO 14616:2004SLOVENSKI
STANDARD



SIST EN ISO 14616:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN ISO 14616July 2004ICS 83.140.10English versionPlastics - Heatshrinkable films of polyethylene, ethylenecopolymers and their mixtures - Determination of shrinkagestress and contraction stress (ISO 14616:1997)Plastiques - Films thermorétractables en polyéthylène, encopolymères d'éthylène et leurs mélanges - Déterminationdes contraintes de rétraction et de contraction (ISO14616:1997)This European Standard was approved by CEN on 21 June 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 14616:2004: ESIST EN ISO 14616:2004



EN ISO 14616:2004 (E)
2
Foreword
The text of ISO 14616:1997 has been prepared by Technical Committee ISO/TC 61 "Plastics” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 14616:2004 by Technical Committee CEN/TC 249 "Plastics", the secretariat of which is held by IBN.
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 January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Endorsement notice
The text of ISO 14616:1997 has been approved by CEN as EN ISO 14616:2004 without any modifications.
SIST EN ISO 14616:2004



INTERNATIONAL STANDARD IS0 14616 First edition 1997-07-01 Plastics - Heatshrinkable films of polyethylene, ethylene copolymers and their mixtures - Determination of shrinkage stress and- contraction stress Plastiques - Films thermor&ractables en poly&hyl&ne, en copolym&res dWhyl&ne et leurs melanges - DBtermina tion des contraintes de rhfraction et de contraction Reference number IS0 14616:1997(E) SIST EN ISO 14616:2004



IS0 14616:1997(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 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. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 14616 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 11, Products. 0 IS0 1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case postale 56 l CH-1211 Geneve 20 l Switzerland Internet central @I iso.ch x.400 c=ch; a=400net; p=iso; o=isocs; s=central Printed in Switzerland ii SIST EN ISO 14616:2004



INTERNATIONAL STANDARD 0 IS0 IS0 14616:1997(E) Plastics - Heatshrinkable films of polyethylene, ethylene copolymers and their mixtures - Determination of shrinkage stress and contraction stress 1 Scope The purpose of this standard is to describe a conventional method for measuring the shrinking and contracting forces of heatshrinkable films made from polyethylene, ethylene copolymers and their mixtures. The method described in this standard can possibly be applied to other materials under proper operating conditions. NOTE 1 This method also allows a shrinkage ratio to be assessed. However, the reference method for measuring the shrinkage ratio is IS0 11501, Plastics - Film and sheeting - Determination of dimensional change on heating. 2 Definitions For the purposes of this standard, the following definitions apply: 2.1 heatshrinkable film: Film which is extruded and stretched (hot drawn) during manufacture and which remains in this state after cooling down. NOTE 2 When this film is again brought up to the temperature at which the stress was induced and then fixed during its manufacture, this stress is liberated and the film shrinks back. Depending on the treatment applied, the film can be - either heatshrinkable both lengthwise and crosswise: this film is called "biaxially oriented", - or mainly heatshrinkable lengthwise: this film is called "uniaxially oriented". 2.2 shrinkage ratio: Decrease in the length‘of the specimen when it is brought up to the shrinkage temperature, expressed as a percentage of the initial specimen length. 2.3 shrinking force, F : r Force developed by the film when it reaches the temperature corresponding to that at which the stress was induced at the time of manufacture. 1 SIST EN ISO 14616:2004



IS0 14616:1997(E) A high film shrinkage is linked to this small force. This small force and this high shrinkage permit the f
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