RECENT DEVELOPMENTS IN PIPE CORROSION INSPECTION TECHNIQUES

In recent years considerable effort has been devoted to developing modern electronic and optical means for inspecting pipelines and tubing in engineering, petrochemical and power plant. Down‐time in such installations can be extremely costly, running as high as thousands of pounds for one day's outage. Considerable expenditure can, therefore, be warranted in the application of inspection techniques to ascertain the state of tubular components either on load, or at programmed maintenance periods. This article surveys some of the more recent equipment developed for this purpose.