An American National Standard. National Association of Corrosion Engineers (NACE) International. Houston, TХ. 2002. 57p. ISBN 1-57590-156-
0. This standard covers the NACE external corrosion direct assessment (ECDA) process for buried onshore ferrous piping systems. This standard is intended to serve as a guide for applying the NACE ECDA process on typical pipeline systems.