BS ISO 4901:2011 BSl Standards Publication Reinforced plastics based on unsaturated-polyester resins Determination of the residual styrene monomer content, as well as the content of other volatile aromatic hydrocarbons, by gas chromatography bsi. ..making excellence a habit: BS ISO 4901:2011 BRITISH STANDARD National foreword This British Standard is the UK implementation of IS0 4901:2011. It supersedes BS 2782-4:Method 432A:1991, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/42, Fibre reinforced thermosetting plastics and prepregs. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @TheBritishStandards Institution2012 ISBN9780580651663 ICS 83.120 Compliancewitha British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2012. Amendments issued since publication Date Text affected BS ISO 4901:2011 ISO INTERNATIONAL STANDARD 4901 Second edition 2011-08-15 Reinforcedplasticsbasedon unsaturated-polyester resins - Determination of the residual styrene monomer content, as well as the content of other volatile aromatic hydrocarbons, by gas chromatography Plastiques renforcés a base de resines de polyesters non satures- Determination du styrene monomere residuel,ainsi que d'autres gazeuse Reference number ISO 4901:2011(E) @ISO 2011 BS ISO 4901:2011 ISO 4901:2011(E) COPYRIGHTPROTECTEDDOCUMENT ? ISO 2011 All 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 either Iso at the address below or Iso's member body in the country of the requester. ISO copyright office Casepostale 56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2011 - All rights reserved BSISO4901:2011 ISO4901:2011(E) Contents Page Foreword iv Introduction 1 Scope. 2 Normative references.. 3 Terms and definitions. 4 Principle 5 Materials 6 Apparatus 7 Preparation of sample. 8 Procedure 8.1 General.. 8.2 Preparationofextractionsolvent 8.3 Preparation oftest solution....... 8.4 Determination of glass and mineral content .. 8.5 Preparation of calibration solutions.. 8.6 Gas-chromatographic procedure .... 9 Expressionof results... 9.1 Caiculation of results from a calibration graph. 9.2 Calculation of the content of styrene (oranother aromatic hydrocarbon) in the original Up resin sample... 9.3 Calculationof thecontent of styrene (oranotheraromatic hydrocarbon)in thepure UP resin.. 8 10 Testreport AnnexA(informative)Typicaloperatingconditions @ ISO 2011 - All rights reserved ili BS ISO 4901:2011 ISO 4901:2011(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 non-governmental, in liaison with isO,also take part in the work. so collaborates closely with the InternationalElectrotechnicalCommission(lEC)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 rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 4901 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 12,Thermosetting materials. This second edition cancels and replaces the first edition (isO 4901:1985), which has been technically revised (for details, see the Introdu