Area or location
|
Original thickness (mm)
|
as-built
|
Minimum thickness (mm)
|
Substantial thickness (mm)
|
corrosion
|
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-side tanks (if applicable)
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Longitudinals or ordinary
transverse frames
|
|
|
|
|
|
Longitudinal stringers
|
|
|
|
|
|
Longitudinal bulkhead
(if applicable)
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Longitudinals (if
applicable)
|
|
|
|
|
|
Longitudinal
girders (if applicable)
|
|
|
|
|
|
Transverse bulkheads
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Stiffeners (if applicable)
|
|
|
|
|
|
Upper stool plating
|
|
|
|
|
|
Upper stool stiffeners
|
|
|
|
|
|
Lower stool plating
|
|
|
|
|
|
Lower stool stiffeners
|
|
|
|
|
|
Transverse web in topside tanks
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Flanges
|
|
|
|
|
|
Stiffeners
|
|
|
|
|
|
Transverse web in hopper tanks
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Flanges
|
|
|
|
|
|
Stiffeners
|
|
|
|
|
|
Transverse web in double-side tanks
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Flanges
|
|
|
|
|
|
Stiffeners
|
|
|
|
|
|
Hatch covers
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Stiffeners
|
|
|
|
|
|
Hatch coamings
|
|
|
|
|
|
Plating
|
|
|
|
|
|
Stiffeners
|
|
|
|
|
|
Note:
|
The wastage allowance tables should be attached
to the survey programme.
|