2.2.1 Ballast tankA ballast tank is a tank which is being used solely for water ballast, or, where applicable, a space which is used for both cargo and ballast will be treated as a ballast tank when substantial corrosion has been found in that space, see [2.2.7]. For double skin bulk carriers, a double side tank is to be considered as a separate tank even if it is in connection to either the topside tank or the hopper side tank.
2.2.2 SpacesSpaces are separate compartments including holds and tanks.
2.2.3 Overall surveyAn overall survey is a survey intended to report on the overall condition of the hull structure and determine the extent of additional close-up surveys.
2.2.4 Close-up surveyA close-up survey is a survey where the details of structural components are within the close visual inspection range of the Surveyor, i.e. normally within reach of hand.
2.2.5 Transverse sectionA transverse section includes all longitudinal members contributing to longitudinal hull girder strength, such as plating, longitudinals and girders at the deck, sides, bottom, inner bottom, longitudinal bulkheads and, as applicable for the different ship types, relevant longitudinals, hopper side plating, bottom plating in top wing tanks, inner sides. For a transversely framed ship, a transverse section includes adjacent frames and their end connections in way of transverse sections.
2.2.6 Representative tanks or spacesRepresentative tanks or spaces are those which are expected to reflect the condition of other tanks or spaces of similar type and service and with similar corrosion prevention systems. When selecting representative tanks or spaces, account is to be taken of the service and repair history on board and identifiable Critical Structural Areas and/or Suspect Areas.
2.2.7 Substantial corrosionSubstantial corrosion is an extent of corrosion such that assessment of the corrosion pattern indicates a wastage in excess of 75% of allowable margins, but within acceptable limits.
2.2.8 Suspect areasSuspect areas are locations showing substantial corrosion and/or considered by the Surveyor to be prone to rapid wastage.
2.2.9 Critical structural areasCritical Structural Areas are locations which have been identified from calculations to require monitoring or from the service history of the subject ship or from similar or sister ships (if available) to be sensitive to cracking, buckling or corrosion which would impair the structural integrity of the ship.
2.2.10 Corrosion Prevention
SystemA corrosion prevention system is normally considered either:
Hard Protective coating is usually to be epoxy coating or equivalent.
Other coating systems may be considered acceptable as alternatives
provided that they are applied and maintained in compliance with
the Manufacturer's specifications.
Refer to [2.5.6] for access to tanks with soft coating.
2.2.11 Coating conditionCoating condition is defined as follows:
2.2.12 Cargo area (ships carrying liquid cargo in bulk)The cargo area is that part of the ship which contains cargo tanks, slop tanks and cargo/ballast pump rooms, cofferdams, ballast tanks and void spaces adjacent to cargo tanks and also deck areas throughout the entire length and breadth of the part of the ship over the above-mentioned spaces.
2.2.13 Cargo Length Area (dry cargo ships)The cargo length area is that part of the ship which contains all cargo holds and adjacent areas including fuel tanks, cofferdams, ballast tanks and void spaces.
2.2.14 Prompt and thorough repairA "Prompt and Thorough Repair" is a permanent repair completed at the time of survey to the satisfaction of the Surveyor, therein removing the need for the imposition of any associated recommendation. See also [2.10].