ISO INTERNATIONAL STANDARD 10352 Fourth edition 2020-08 Fibre-reinforced plastics - Moulding compounds and prepregs - Determination of mass per unit area and fibre mass per unit area Plastiques renforcés de fibres - Melanges a mouler et preimpregnés Determinationdelamassesurfaciqueetdelamassedesfibrespar unitédesurface Reference number IS0 10352:2020(E) ISO @ISO 2020 IS0 10352:2020(E) COPYRIGHTPROTECTEDDOCUMENT @IS02020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below or Iso's memberbody in the country ofthe requester. ISO copyright office CP 40i : Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22.749 01 11 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved IS010352:2020(E) Contents Page Foreword ..V 1 Scope ..1 2 Normativereferences 3 Terms and definitions 2 4 Principle 4.1 Determination of mass per unit area. 2 2 4.2 Determination offibremass perunit area 4.2.1 Method A:Extraction in Soxhlet-type apparatus 2 .2 4.2.2 Method B:Extraction by immersion in solvent in a beaker. 4.2.3 Method C: Decomposition by loss on ignition 2 4.2.4 Method D:Extraction by wet combustion .2 4.2.5 Method E: Method by calculation .2 5 Apparatus and reagents .3 5.1 General .3 5.2 For Method A .3 5.3 For Method B .3 5.4 For Method C 5.5 ForMethod D .4 Conditioning and testing 6 .4 6.1 Conditioning. 6.1.1 Materials for which no conditioning is required 4 .5 6.1.2 Conditioning ofmaterial stored at ambienttemperature. 6.1.3 Conditioning ofmaterial stored at below ambient temperature .5 6.2 Testing 6.2.1 Test atmosphere. .5 6.2.2 Time interval between conditioning and testing. .5 Test specimens. ..5 7 7.1 Shape and dimensions .5 7.2 Number. 7.3 Preparation 8 Procedure. ..8 8.1 Determination of mass perunitarea .8 8.1.1 Materials made without using a solvent. .8 .8 8.1.2 Materials made usinga solvent. 8.2 Determination of fibre mass per unit area. .9 8.2.1 Method A: Extraction in Soxhlet-type apparatus 9 8.2.2 Method B: Extraction by immersion in solvent .9 8.2.3 Method C:Decompositionby loss on ignition 9 8.2.4 Method D:Extraction bywet combustion. .10 8.2.5 Method E: Method by calculation. .11 9 Expressionofresults ..11 9.1 Mass per unit area. ..11 9.1.1 Materials made without using a solvent .11 9.1.2 Materials made using a solvent. ..11 9.2 Fibre mass per unit area .12 9.2.1 Method A:Extraction in Soxhlet-type apparatus .12 9.2.2 MethodB:Extractionbyimmersion in solvent ..12 9.2.3 Method C: Extraction bydecomposition byloss on ignition. .12 9.2.4 Method D:Extractionbywet combustion. ..13 9.2.5 Method E: Method by calculation. ..13 10 Precision .13 @IS0 2020 -All rights reserved ili