To date, it has been found that permeation values through an organic membrane can be roughly estimated when a soak test is followed by a sequential air drying of the membrane carried out at the same temperature as the soak test. If this technique can be further verified, the need for running a separate cup test for permeation rate determination can be eliminated or at least minimized. Such a sequential soak-dry test would also provide information regarding the time duration of any permeation test that may be required. A natural rubber in distilled water was used in this preliminary investigation. The soak-dry test permits an in-depth evaluation of organic membranes for bonded lining as well as for freestanding membrane service.

Subject
External surfaces, Water, Materials, Absorption, Diffusion, Additives, Solvents, Desorption, Permeation, Weight loss, Elastomers, Rubber, Drying
© 1982 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1982
Association for Materials Protection and Performance (AMPP)
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