ISO INTERNATIONAL STANDARD 8142 First edition 1990-03-15 Thermal insulation - Bonded preformed man- made mineral fibre pipe sections : Specification Isolation thermique - /solations de tuyaux en fibres minerales manufacturees preformees encollees-Specification Reference number ISO 8142 : 1990 (E) No reproduction or networking permitted without license from IHS Not for Resale ISO 8142 : 1990 (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, govern- 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 mattersofelectrotechnicalstandardization. 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. International Standard ISO 8142 was prepared by Technical Committee ISO/TC 163 Thermalinsulation. Annexes A and B form an integral part of this International Standard. Annex C is for information only. ? ISO 1990 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. InternationalOrganizationforStandardization Case postale 56 . CH-1211 Geneve 20 . Switzerland Printed in Switzerland CopyrightltematinalOrganizatin for Standardization No reproduction or networking permitted without license from IHS Not for Resale ISO 8142 : 1990 (E) INTERNATIONAL STANDARD Thermal insulation Bonded preformed man-made mineral fibre pipe sections - Specification 1 Scope 3.2 maximum service temperature:Temperature at which the thermail insulation installed at the maximum rec- This International Standard specifies the properties of bonded ommended thickness will continue to perform without preformed man-made mineral fibre pipe insulation. It also gives degradation of necessary properties or creation of hazards. test methods. 3.3 pipe section: Complete cylinder of preformed pipe in- NOTES sulation comprising one or more pieces. 1 For use at temperatures below ambient, attention is drawn to the need for an adequate water vapour retarder, either factory- or site- applied; this need is not covered by this International Standard. 2 No tests for compressive strength have been included since end 4 Composition and form results are achieved in service by the insulation system including the outer covering. 4.1 The preformed pipe sections shall be made from man- made mineral fibre manufactured by processing glass, rock or 2 Normative references slag from a molten state into a fibrous form and bonded with a suitable binder. The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated 4.2 The bonded fibre shall be formed by the manufacturer were valid. All standards are subject to revision, and parties to into annular sections to fit standard sizes of pipe. agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions 4.3 Each section shall be supplied in a single piece or not of the standards indicated below. Members of IEC and ISO more than four pieces. maintain registers of currently valid International Standards. NOTE -- The preformed pipe insulation may be provided either with or ISo7345:1987,The