ISO INTERNATIONAL STANDARD 9866-1 First edition 1991-09-15 Textiles -- Effect of dry heat on fabrics under lowpressure- Part 1: Procedure for dry-heattreatment of fabrics Textiles--Effetdela chaleurseche sur des tissus sousbasse pression Partie1:Procedepour letraitementa la chaleur sechedetissus Referencenumber ISO9866-1:1991(E) ISO 9866-1:1991(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 norrnally carried out through Iso technical committees.Each mcmber body interested in a subjcct for which a technical committee has been established has the right to be represented on that committee.International organizations. govern- mental and non-governmental, in liaison with iso, also take part in the work.Isocollaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by thetechnical committees are circulated to the member bodies for voting. Publication as an Inter- bodies casting a vote. InternationalStandardIsO9866-1waspreparedbyTechnical Committee ISO/TC38,Textiles.Sub-CommitteeSC2.Cleansing.finishingandwater resistance tests. ISO9866 consists of the following parts,under the general title Part 1:Procedurefor dry-heat treatment of fabrics Part 2:Determination of dimensional changein fabrics exposed to - dry heat ISO 1991 All righits reserved. 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 Organizationfor Standardization Case Postale56·CH-1211Geneve20·Switzerland Printed in Switzerland ii INTERNATIONALSTANDARD ISO 9866-1:1991(E) Textiles -- Effect of dry heat on fabrics under low pressure Part 1: Procedure for dry-heat treatment of fabrics 1 Scope 4 Apparatus This part of Iso 9866 specifies a method for the Press,consisting of a plane heated metal plate 4.1 dry-heat treatment offabrics for use in assessing the whose temperature can be adjusted with the range dimensional stability and other heat-related proper- 100 "c to 210 °c with an accuracy of ±2C, and a tles of fabrics(see e.g.Iso 9866-2:1991,Textiles- horizontalbcd.Whenclosed,thepress exerts a Effect of dry heat on fabrics under lowpressure known,uniformpressure,accurateto±25%,be Part 2:Determination ofdimensional change in fab- tween the plate and hed. The hed is covered with rics exposed to dry heat) flexibleand compressible cladding"oflowthermal conductivity and heat capacity, which is capable of conforming to slight variations in the thickness of specimens or of the gap between plate and bed. The 2 Normative reference cladding shall be unaffected by the highest tem- perature used, and shall not absorb moisture. The following standard contains provisions which, through reference in this text, constitute provisions 4.2 Specimen holder, consisting of a thin flexible of this part of iso9866.At the timeof publication sheet of material, with low friction and low heat ca- the edition indicated was valid. All standards are pacity2), which is larger than the heated plate and is subjectto revision, and parties to agreements based supported at its edges by a light frame which does on this partof isO g9866 are encouraged to investi- not impede contactbetweentheplate and bed. gate the possibility of applying the most recent edi- tion of the standard indicated below. Members of IEc and Iso maintain registers of currently valid 5 Atmospheresfor conditioning and International Standards. testing ISO 139:1973.Textiles --3 Standard atmospheres for Unless otherwise indicated, the following atmos- conditioning and testing. pheres, as specified inisO 139, shall be used: preconditioning. a)for an atmospherehaving a relative humidity of 10 % or lower and a tem- 3 Principle peratureof50