ISO INTERNATIONAL STANDARD 10363 First edition 1992-12-01 Hot-melt adhesives Determination of thermal stability Adhésifs thermofusibles - Détermination de la stabilite thermique Reference number ISO 10363:1992(E) No reproduction or networking permitted without license from IHS Not for Resale ISO10363:1992(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. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International a vote. International Standard ISO 10363 was prepared by Technical Committee ISO/TC 61, Plastics, Sub-Committee SC 11, Products. Annex A of this International Standard is for information only ISO1992 All rights 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 per- mission in writing from the publisher. international OrganizationforStandardization Case Postale 56 . CH-1211 Geneve 20 · Switzerland Printed in Switzerland i for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO10363:1992(E) INTERNATIONALSTANDARD Hot-melt adhesives Determination of thermal stability 1 Scope Apparatus This International Standard specifies a method for 4.1 Stainless-steel or glass vessel, external diam- determiningthe thermal stability of non-reactive hot- eter 65 mm, height 95 mm, equipped with a loose- melt adhesives at temperatures up to 260 °C. fitting lid. 4.2 Oil bath, stirred and capable of being main- Normative references tainedattheoperatingtemperaturerecommendedby 2 the manufacturer of the hot-melt adhesive. Aiterna- tively,a ventilated oven maybeusedinstead of the The:followingstandardscontainprovisionswhich oil bath. The oven or bath shall be capable of heating through reference in this text, constitute provisions the sample to within ± 2 °C of the required tempera- of this International Standard.At the time of publi- ture. cation,the editions indicated were valid.All standards are subject to revision, and parties to agreements based on this International Standard are encouraged 4.3 Glass stirring rod. to investigate the possibility of applying the most re- cent editions of'the standards indicated below Members of IEC and ISO maintain registers of cur- 4.4 Apparatus for measuring the softening point by the "ring-and-ball" method as specified rentlyvalidInternationalStandards. in ISo 4625. IsO 1770:1981, Solid-stem general purpose ther- mometers. 4.5 Apparatus for measuring viscosity, in accord- ance withISO2555. ISO 2555:1989,Plastics-Resins in the liquid state orasemulsionsordispersions Determination of 4.6 Thermometer, complying with type apparent viscosity by the Brookfield Test method. ISO1770 ISO 4625:1980, Binders for paints and varnishes Determination of softening point - Ring-and-ball 4.7 Balance, capable of weighing to the nearest method. 0.1 g. 5 Procedure 3Principle WARNING - For reasons of health and safety, conduct the tests in a ventilated space with a A quantity of hot-melt adhesive is heated under fume extraction system. specified conditions. Samples are taken at regular time intervals and any changes in viscosity and in softening point (determined by the "ring-and-ball" 5.1 Place the stainless-steel or glass vessel (4.1) in method) during heating are noted. The maximum the oil bat