Bunker and Draft Survey

Bunker and Draft Survey is a standardized procedure and is carried out by Marine Cargo Master strictly according to international rules.

• The purpose of Bunker Survey is to establish the quantity of bunker (its can be OBQ (on board quantity) or ROB (remaining on board) quantity) at time of survey present.

• In case of below condition bunker survey is needed to be carried out:
• Ship delivery or vessel redelivery, the reason is to ascertain the quantity of bunker that must be returned by Charterer to the Owner at the end of the charter party.
• Being “off-hired” when a ship is still under charter, the reason is to ascertain the consumed bunker during “off-hire time” that falls under Owner’s responsibility.
• Supplying bunker, either ship to ship or shore to ship, the reason is to prevent “cheating” on the supplied quantity.

• Certain purposes, the reason is for Adjusting log book entry “on the spot checking” of actual quantity onboard (OBQ/ROB)

• Draft survey is the calculation of the weight of cargo loaded or unloaded from a ship, based on the difference in its displacement.

• Draft survey is carried out according to the draft of the vessel from 6 standard points of the hull: bow, midship and stern from both sides.

• Corrective factors (roll, trim, water density and weight of ship’s stores) are also taken into account in the calculations.