ISO INTERNATIONAL STANDARD 10724-2 First edition 1998-11-15 Plastics Injection moulding of test specimens of thermosetting powder moulding compounds (PMCs) Part 2: Small plates a mouler (PMC) thermodurcissables - Partie 2: Petites plaques ISO Reference number ISO 10724-2:1998(E) THS unde Not for Resale ISO 10724-2:1998(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 liaison with IsO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission(lEC)onallmattersofelectrotechnicalstandardization Draft International Standards 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. International Standard ISO 10724-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 12, Thermosetting materials. Together with part 1, this part of isO 10724 cancels and replaces IsO 10724:1994, which has been revised to improve the definition of the injection-moulding parameters and has been restructured to specify two types of Iso mould for the production of the basic specimen types required for the acquisition of comparable test data. Care has been taken to ensure that the Iso moulds described can all be fitted in existing injection-moulding equipment and have interchangeable cavity plates. thermoplastic materials, isO 294:1996, Plastics Injection moulding of test specimens of thermoplastic materials. which should be taken from the central portion of the multipurpose test specimen) and the moulding of small tensile bars (≥ 60 mm × 10 mm × 3 mm). Therefore the type B and type C ISO moulds specified in ISO 294 were not included in this part of isO 10724. Regardless of this, and to avoid confusion, the designation of the different mould types in this part of ISO 10724 and in ISO 294 correspond to each other. Iso 10724 consists of the following parts, under the general title Plastics - Injection moulding of test specimens o1 thermosetting powder moulding compounds (PMCs): Part 1: General principles and moulding of multipurpose test specimens Part 2: Small plates Annexes A to D of this part of ISO 10724 are for information only. @ISO1998 Al rights reserved. Unless otherwise specified, 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 OrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland Internet [email protected] Printed in Switzerland @ ISO ISO 10724-2:1998(E) Introduction hence the measured values obtained when the specimens are used in a test method. The thermal and mechanical prepare the specimens. Exact definition of each of the main parameters of the moulding process is a basic requirement for reproducible and comparable operating conditions. It is important in defining moulding conditions to consider any influence the conditions may have on the properties to be determined. Thermosets may show differences in orientation of anisotropic fillers such as short fibres and in crosslinking of thermosets, molecular orientation is of less influence on mechanical properties than it is for measured properties. ii Copyrightlnternational Organizatin for Standardization Not for Resale