4 Alternative method
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Statutory Documents - IMO Publications and Documents - Resolutions - Marine Environment Protection Committee - Resolution MEPC.147(54) – Guidelines on the Assessment of Residual Fillet Weld Between Deck Plating and Longitudinals – (Adopted on 24 March 2006) - Annex – Guidelines on the Assessment of Residual Fillet Weld Between Deck Plating and Longitudinals - 3 Local thickness measurement and criteria - 4 Alternative method

4 Alternative method

 Detachment of the deck longitudinal member can also be checked using the following procedures. In cases where the longitudinal member is attached in sound condition, when the probe of the ultrasonic equipment is moved from the baseline to the outer side over the welding part, the ultrasonic echo from the bottom surface of the deck plate is not observed just over the welding part. However, in cases where the longitudinal member is detached from the deck plate, when the probe of the ultrasonic equipment is moved from the baseline to the outer side beyond the welding part, the ultrasonic signal echo can be observed continuously, even if the probe is on the detached welding part as shown in figure 2.

Figure 2 Alternative method

Parent topic: 3 Local thickness measurement and criteria
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