This work shows that an appearance rating point system can improve the objectivity of ASTM C581 corrosion resistance testing. The importance of reporting the appearance is taught in ASTM C581. However, no standard for indicating the extent of change in physical appearance is given.

The appearance rating technique described in this paper assigns points ranging from 0 to 5 for seven different categories of appearance. A zero indicates no change and a 5 indicates extensive change. The point system shows the relative benefit of BPO/DMA cure, NEXUS veil and postcure for the corrosion resistance of FRP composites in bleach. In contrast, flexural strength properties were not a good indicator of the relative benefit of these variables.

Subject
Test methods, Laminates, Degradation, Vinyl ester, Gloss, Corrosion attacks, Fibers, Cobalt, Corrosion resistance, Blistering, Cracks, Opacity, Resins
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.