ISO INTERNATIONAL STANDARD 2577 Third edition 2007-12-15 Plastics Thermosetting moulding materials Determination of shrinkage Plastiques- Matieres a mouler thermodurcissables Determination du retrait Reference number ISO 2577:2007(E) @ISO2007 ISO 2577:2007(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademarkof Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHTPROTECTEDDOCUMENT ISO2007 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, Iso's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax+41227490947 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2007 - All riahts reserved ISO 2577:2007(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 InternationalElectrotechnicalCommission(iEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEc Directives, Part 2. 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. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 2577 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 12, Thermosetting materials. This third edition cancels and replaces the second edition (IsO 2577:1984), which has been technically revised. "ahts reserved ili INTERNATIONAL STANDARD ISO 2577:2007(E) Plastics Thermosetting moulding materials Determination of shrinkage 1 Scope This International Standard specifies a method of determining the moulding shrinkage and the shrinkage after heattreatmentof mouldedtestspecimensofthermosettingmouldingmaterials. These characteristics are useful for the production control of thermosetting material and for checking uniformityof manufacture.Furthermore,knowledgeof theinitial shrinkageof thermosettingmaterialsis important for the construction of moulds, and knowledge of post-shrinkage for establishing the suitability of the moulding material for the manufacture of moulded pieces with accurate dimensions. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. Iso 295, Plastics - Compression moulding of test specimens of thermosetting materials Iso 10724-1, Plastics- Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) Part