Defective portions of a metallic tank storing hot hydrocarbon oil therein and having a thermally protective coating of polyurethane foam adhered onto the side wall thereof, are detected by determining a distribution of surface temperatures of the coating. Portions of the coating of relatively high temperatures...http://www.google.fr/patents/US4174480?utm_source=gb-gplus-shareBrevet US4174480 - Method of detecting defective portions of metallic tank having thermally protective coating of polyurethane foam
Method of detecting defective portions of metallic tank having thermally ...