Testing and Inspection of Old Tanks

7.2.5 Inspection of main dimensionsThe main dimensions of the tank and if relevant of the framework shall be inspected forconformity with the dimensions given by the design drawings.Note: It should be possible to check portable tank and tank container dimensionsagainst standards for freight containers7.2.6 Non-destructive testing of the weldsGeneralNOTE: This section would normally only apply following major repairs to the tank.The non-destructive testing of the welds may be by radiographic or ultrasonic methods.Welds which cannot be tested by ultrasonic or radiographic methods because of thedesign or the position of the weld may be tested by dye penetrant or magnetic particleinspection.NOTE: Where NDT testing is used the type and extent should be in accordance withthe original specifications.The non-destructive testing of welds should be carried out in accordance with thetechnical code used for design and construction of the tank, e.g. EN 14025 forpressure tanks and carried out in accordance with EN1435 and EN1714.NOTE: The following Table 7 should only be used where there are complete recordsof design and original construction of the tank.14