ISO INTERNATIONAL STANDARD 3187 First edition 1989-07-01 ANsI Internat Doc Sect Refractory products -- Determination of creep in compression Produits refractaires - Détermination du fluage a la compression Referencenumber ISO 3187 : 1989 (E) Provided by IHS underlicense with ISO n for Standardizatior No reproduction or networking pemmited without license from IHS Not for Resal ISO 3187 : 1989 (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 mental 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 approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. Internationai Standard ISO 3187 was prepared by Technical Committee ISO/TC 33, Refractories. Annex A of this International Standard is for information only ISO 1989 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 permission in writing from the publisher. International Organization for Standardization Case postale 56 . CH-1211 Geneve 20 . Switzerland Printed in Switzerland Copyright International Organizationfor Standardization Noreproductionornetworking pemitedwithout icense frmH Not for Resale INTERNATIONAL STANDARD ISO 3187 : 1989 (E) Refractory products - Determination of creep in compression Scope 4. Principle This International Standard specifies a method for determining A test piece of given dimensions is heated under specified con- creep in compression, which is the deformation of a refractory ditions to a given temperature and at one of two specified stages (see 7.2) in the test a constant compressive load is mal conditions. applied to it. The deformation of the test piece at constant temperature is recorded and the percentage change is evalu- The test rig used in this method of test is the same as that ated as a function of time. used for the determination of refractoriness-under-load (see ISO 1893). There are two forms of the test, one where the load is applied at room temperature and the other where it is applied at the test NOTE -- The apparatus described is generally suitable for determi- nation of creep in compression up to 1 600 oc. temperature. NOTE- -- The values between the end of the fifth hour creep and the end of the test are usually in close agreement. Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Apparatus Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to 5.1 Loading device agreements based on this Internationa Standard are encouraged to investigate the possibility of applying the most recent editions of the standards listed below. Members of IEC and ISO main- 5.1.1 General tain registers of currently valid international Standards. The loading device shail be capabie of applying a load centred on the common axis of the loading column, the test piece and ISO/R 836 : 1968, Vocabulary for the refractories industry. the supporting coltumn, and directed vertically along this axis at all stages of the test. The loading device consists of the items ISo 1893 : 1989, Refractory products -- Determinationof refractoriness-under-load (differential -- with rising tempera- given in