Copper coupons have long been used to determine the corrosivity of environments to which process instrumentation, computer systems and electrical switchgear have been exposed. This corrosion information, although accurate, is only available after the exposure time plus the coupon processing time. Damage to critical components and systems is usually more severe due to total time of exposure before detection, when remedial action can be taken.

A new environmental corrosion monitoring system is described that utilizes thin-film copper sensors and an on-line microprocessor based instrument. The sensor is scanned periodically, the corrosion rate determined, and a comparison made with the ISA classifications of reactive environments. A display provides a continuous indication of the ISA environmental classification.

Results are presented for operational experience with units installed in the field as well as laboratory testing.

Subject
Hydrogen sulfide, Test methods, Thin films, Sensors, Corrosion rate, Metal coupons, Instrumentation, Equipment, Copper, Gases, Corrosion coupons, Corrosion monitoring, Elements
Keywords:
Atmospheric Corrosion, Corrosion Monitoring, Environmental Corrosion
© 1994 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).
1994
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.