| Description | Report on the limited acoustic inspection work carried out by UDI on about 200km of Pipeline No 1, on which results the inspection programme for 1978 was based. Comprises chapter on the Preparation of Inspection; Operations; Results; and four appendices: Call for tender; UDI's equipment; UDI's report, comprising an index, abstract, conclusions and report with 8 appendices including those concerning equipment, personnel, weather and tide, and charts and documents; and a Quantitative analysis of sonar records, which includes copies of graphs and charts of variable quality. With alignment sheet. |