Annex 2 - Minimum Requirements for Thickness Measurements at Renewal Survey of Double Hull Oil Tankers
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Assembly - IMO Resolution A.744(18) Guidelines on the Enhanced Programme of Inspections During Surveys for Bulk Carriers and Oil Tankers (Adopted on 4 November 1993) - Annex B - Guidelines on the Enhanced Programme of Inspection During Surveys for Oil Tankers - Part A - Guidelines on the Enhanced Programme of Inspections During Surveys of Double Hull Oil Tankers - Annex 2 - Minimum Requirements for Thickness Measurements at Renewal Survey of Double Hull Oil Tankers

Annex 2 - Minimum Requirements for Thickness Measurements at Renewal Survey of Double Hull Oil Tankers

Age ≤ 5 years 5<age≤10 years 10<age≤15 years Age>15 years
1 2 3 4
One section of deck plating for the full beam of the ship within the cargo area Within the cargo area:
  • each deck plate
    one
  • transverse section
Within the cargo area:
  • each deck plate
  • two transverse sections (1)
  • all wind and water strakes


Within the cargo area:
  • each deck plate
  • three transverse sections (1)
  • each bottom plate



  • all wind and water strakes
  Selected wind and water strakes outside the cargo area Selected wind and water strakes outside the cargo area Selected wind and water strakes outside the cargo area
Measurements, for general assessment and recording of corrosion pattern, of those structural members subject to close-up survey according to Annex 1 Measurements, for general assessment and recording of corrosion pattern, of those structural members subject to close-up survey according to Annex 1 Measurements, for general assessment and recording of corrosion pattern, of those structural members subject to close-up survey according to Annex 1 Measurements, for general assessment and recording of corrosion pattern, of those structural members subject to close-up survey according to Annex 1
Suspect areas Suspect areas Suspect areas Suspect areas
(1): at least one section should be within 0,5L amidships.

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