| Item
|
Interpretation
|
Figure
reference
|
| Selected plates on deck, tank top, bottom,
double bottom and wind-and-water area
|
"Selected" means at least a single point on
one out of three plates, which shall be chosen on representative areas
of average corrosion
|
|
| All deck, tank top and bottom plates and
wind-and-water strakes
|
At least two points on each plate which
shall be taken either at each 1/4 extremity of plate or at
representative areas of average corrosion
|
|
| Transverse section
|
A transverse section includes all
longitudinal members such as plating, longitudinals and girders at the
deck, side, bottom, inner bottom and hopper side plating, longitudinal
bulkhead and bottom plating in top wing tanks
|
Figure 4
|
| All cargo hold hatch covers and
coamings
|
Including plates and stiffeners
|
Locations of points are given in figure
5
|
| Transverse section of deck plating outside
line of cargo hatch openings
|
Two single points on each deck plate (which
shall be taken either at each 1/4 extremity of plate or at
representative areas of average corrosion) between the ship sides and
hatch coamings in the transverse section concerned
|
|
| All deck plating and underdeck structure
inside line of hatch openings between cargo hold hatches
|
"All deck plating" means at least two points
on each plate shall be taken either at each 1/4 extremity of plate or
at representative areas of average corrosion
"Under deck
structure": at each short longitudinal girder: three points for web
plating (fwd/middle/aft), single point for face plate, one point
for web plating and one point for face plating of transverse beam
in way. At each end of transverse beams, one point for web plating
and one point for face plating
|
Extent of areas is shown in appendix 3 to
annex 8B
Locations of points are given in figure 9
|
| Selected side shell frames in cargo
holds
|
Includes side shell frame, upper and lower
end attachments and adjacent shell plating. 25% of frames: one out of
four frames should preferably be chosen throughout the cargo hold
length on each side. 50% of frames: one out of two frames should
preferably be chosen throughout the cargo hold length on each side.
"Selected frames" means at least three frames on each side of cargo
holds
|
Extent of areas is shown in appendix 3 to
annex 8B
Locations of points are given in figure 6
|
| Transverse bulkheads in cargo holds
|
Includes bulkhead plating, stiffeners and
girders, including internal structure of upper and lower stools, where
fitted. Two selected bulkheads: one shall be the bulkhead between the
two foremost cargo holds and the second may be chosen in other
positions
|
Areas of measurements are shown in appendix
3 to annex 8B
Locations of points are given in figure 7
|
| One transverse bulkhead in each cargo
hold
|
This means that the close-up survey and
related thickness measurements shall be performed on one side of the
bulkhead; the side shall be chosen based on the outcome of the overall
survey of both sides. In the event of doubt, the surveyor may also
require (possibly partial) close-up survey on the other side
|
Areas of measurements are shown in appendix
3 to annex 8B
Locations of points are given in figure 7
|
| Transverse bulkheads in one topside, hopper
and double bottom ballast tank
|
Includes bulkhead and stiffening systems
The ballast tank shall be chosen based on the history of
ballasting among those prone to have the most severe
conditions
|
Locations of points are given in figure
8
|
| Transverse webs in ballast tanks
|
Includes web plating, face plates,
stiffeners and associated plating and longitudinals
One of the
representative tanks of each type (i.e. topside or hopper or side
tank) shall be chosen in the forward part
|
Areas of measurements are shown in appendix
3 to annex 8B
Locations of points are given in figure 6
|