Area or location
|
Original as-built thickness (mm)
|
Minimum thickness (mm)
|
Substantial corrosion thickness (mm)
|
Deck
|
|
|
|
Plating
|
|
|
|
Longitudinals
|
|
|
|
Longitudinal girders
|
|
|
|
Cross deck plating
|
|
|
|
Cross deck stiffeners
|
|
|
|
Bottom
|
|
|
|
Plating
|
|
|
|
Longitudinals
|
|
|
|
Longitudinal
girders
|
|
|
|
Inner bottom
|
|
|
|
Plating
|
|
|
|
Longitudinals
|
|
|
|
Longitudinal
girders
|
|
|
|
Floors
|
|
|
|
Ship side in way of topside tanks
|
|
|
|
Plating
|
|
|
|
Longitudinals
|
|
|
|
Ship side in way of hopper side tanks
|
|
|
|
Plating
|
|
|
|
Longitudinals
|
|
|
|
Ship side in way of double-hull tanks (if applicable)
|
|
|
|
Plating
|
|
|
|
Longitudinals
|
|
|
|
Longitudinal stringers
|
|
|
|
Longitudinal bulkhead inner side (if applicable)
|
|
|
|
Plating
|
|
|
|
Longitudinals (if
applicable)
|
|
|
|
Longitudinal
girders (if applicable)
|
|
|
|
Longitudinals or
ordinary transverse frames
|
|
|
|
Longitudinal
girders (if applicable)
|
|
|
|
Transverse bulkheads
|
|
|
|
Plating
|
|
|
|
Stiffeners (if
applicable)
|
|
|
|
Upper stool
plating
|
|
|
|
Upper stool
stiffeners
|
|
|
|
Lower stool
plating
|
|
|
|
Lower stool
stiffeners
|
|
|
|
Transverse web frames in topside tanks
|
|
|
|
Plating
|
|
|
|
Flanges
|
|
|
|
Stiffeners
|
|
|
|
Transverse web frames in hopper tanks
|
|
|
|
Plating
|
|
|
|
Flanges
|
|
|
|
Stiffeners
|
|
|
|
Transverse web
frames in hopper tanks
|
|
|
|
Plating
|
|
|
|
Flanges
|
|
|
|
Stiffeners
|
|
|
|
Transverse web
frames in double-side tanks
|
|
|
|
Plating
|
|
|
|
Flanges
|
|
|
|
Stiffeners
|
|
|
|
Hatch
covers
|
|
|
|
Plating
|
|
|
|
Stiffeners
|
|
|
|
Hatch coamings
|
|
|
|
Plating
|
|
|
|
Stiffeners
|
|
|
|