ISO INTERNATIONAL STANDARD 11667 First edition 1997-12-15 Fibre-reinforced plastics -- Moulding compounds and prepregs - Determination of resin, reinforced-fibre and mineral-filler content --- Dissolution methods Plastiques renforcés de fibre -Preimpregnes et compositions de moulage - Determination des taux de resine, de fibre de renfort et de charge minerale -Methodes par dissolution This material is reproduced from Iso documents under International Organization for Standardization (Iso) Copyright License number IHS/ICC/1996. Not for resale. No part of these Iso documents may be reproduced in any form, electronic retrieval system or otherwise, except as aliowed in the copyright law of the country of use, or with the prior writen consent of ISO (Case postale 56, 1211 Geneva 20, Switzerland, Fax +41 22 734 10 79), IHS or the Iso Licensor's members. ISO Reference number ISO11667:1997(E) Copyright Intermational Organization for Standardization ded by IHS No reproduction or networking permitted without license from IHS Not for Resale ISO 11667:1997(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. 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 11667 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13, Composites and reinforcement fibres. Annex A of this International Standard is for information only. @ISO1997 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced microfilm, without permission in writing from the publisher. Intermational Organization for Standardization Case postale 56 : CH-1211 Geneve 20. Switzerland Intermet [email protected] X.400 C=ch; a=400net; p=iso; o=isocs; $=central Printed in Switzerland Copyright International Organization for Standardization mitted without license from IHS Not for Resale INTERNATIONAL STANDARD ISO ISO11667:1997(E) Fibre-reinforced plastics -- Mouiding compounds and prepregs - Determination of resin, reinforced-fibre and mineral-filler content -- Dissolution methods WARNING - Persons using this International Standard should be familiar with normal laboratory practice. This standard does not purport to address all of the safety problems, if any, associated with its use. It is the with any national regulatory conditions. Scope This International Standard specifies two dissolution methods for the determination of the resin, reinforcement-fibre and mineral-filler contents of mouiding compounds and prepregs: Method A: Extraction by Soxhlet. In cases of dispute, this method is the reference method. suitable for quality assurance testing. This International Standard is applicable to the following types of material: prepregs made from yarns, rovings, tapes and fabrics; SMC, BMC and DMC moulding compounds. Typically, reinforcement fibres are coated with sizing or finishes. These normally dissolve with the resin and are, therefore, included in the resin content. This International Standard is not applicable to the following types of reinforced plastic: those containing reinforcements which are soluble (or partly soluble) in the solvents used to dissolve the resin those in which the resin is partly or fully cured and so not fully soluble in organic solvents. NOTE- 1so 1172:1996, Textile-glass-reinforced plastics -Prepregs,