Testing and Inspection of Old Tanks

Annex E Vacuum Waste TankerINTERMEDIATE INSPECTIONExamination of Documents.Documents relating to the tank and previous inspections shall be examined prior tocommencement of the inspection.The tank shall be identified against the documents and details on tanker name plate.Documentary evidence that all residues of product have been removed (eg. tanker washcertificate).External Visual ExaminationA visual check of all accessible external surfaces.Areas of corrosion and damage that may affect the tank integrity and safe operation shall benoted on the report.Check shell mounting supports and attachment points for items of equipment fitted directly totanker shell.Rear doors on tanks fitted with openable ends shall be checked for signs of damage orleaking.Pivots, hinges and securing clamps etc shall be examined for evidence of wear or damage.Suction boom attachment points and rotation crown wheels, if fitted, shall be checked forevidence of wear or damage.Remove paint from surfaces showing signs of peeling or blistering to determine condition ofshell beneath.Internal Visual ExaminationA visual check of internal surfacesAreas of thinning, tramlining around welds and areas of corrosion shall be investigated byappropriate measurement.Evidence of blistering, cracking or incomplete areas of linings or coatings on internalsurfaces, used to protect the material of the shell, shall be recorded.Internal pistons, if fitted, shall be checked for free movement and peripheral seals shall be ingood condition.Rear door seals shall be checked for evidence of deterioration or damage.34