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Bunker Quantity Survey Services

Bunker quantity disputes are among the most common and costly issues in the maritime industry. Short deliveries, measurement manipulation, density discrepancies, and the infamous "cappuccino effect" can result in significant financial losses for bunker buyers. A bunker quantity survey by an independent surveyor is the most effective way to verify the actual quantity of fuel delivered and protect your interests.

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What Is a Bunker Quantity Survey?

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A bunker quantity survey involves the independent measurement of fuel quantities onboard the receiving vessel and, where possible, the delivering barge or tanker, before and after the bunkering operation. By comparing the opening and closing figures from both sides, our surveyors determine the exact quantity of fuel transferred and identify any discrepancies.

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Our Survey Methodology

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Our surveyors attend the vessel before bunkering begins to take initial soundings and temperature readings of all bunker tanks. We monitor the bunkering operation throughout, observing flow meters, checking for irregularities, and taking intermediate readings as needed. After bunkering is complete, we take final measurements on both the receiving vessel and the supply source.

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We apply all necessary corrections for temperature, density, trim, and heel to calculate the actual quantity delivered. Our reports clearly identify any shortage or excess and provide the evidence needed to support your claim if a dispute arises.

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Protecting Against Common Tricks

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Our experienced surveyors are trained to detect common manipulation techniques including the cappuccino effect (aeration of fuel to inflate volume readings), temperature manipulation, density discrepancies between BDN and actual fuel, and incorrect use of sounding or calibration tables. We ensure that you receive exactly what you are paying for.

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Available 24/7 Across Northern Europe

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Bunkering operations happen around the clock, and so do we. Motto Marine provides bunker quantity survey services at Dunkirk and all major bunkering locations across Northern Europe. Contact us at any hour for prompt attendance at your next bunkering operation.

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