Abstract
The effectiveness of cathodic protection on the exterior bottoms of aboveground grade storage tanks is usually measured with zinc or copper-copper sulfate reference electrodes placed under the tank bottom. In the case of asphalt tanks, however, the high temperature of about 300F (150C) under the tanks precludes the use of these types of electrodes. In such instances, corrosion measurement probes may be substituted. Zero corrosion rates as measured on the probes should indicate effective cathodic protection. This paper describes the installation and initial testing of corrosion measurements probes under two asphalt tanks in a refinery
© 1999 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).
1999
Association for Materials Protection and Performance (AMPP)
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