
Vietnam Survey Group (VSG) provides professional Bunker Quantity Survey (BQS) services to protect the interests of Shipowners, Charterers, and all parties involved in bunker receiving and delivering operations at Vietnam ports and offshore locations (OPL).
Our BQS service follows international standards, ensuring transparency, accuracy, and minimizing risks related to fuel losses, malpractice, or measurement discrepancies.
OBJECTIVES OF BQS
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To determine the accurate quantity of fuel delivered or received.
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To prevent short delivery and any fraudulent practices.
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To ensure safe, neutral, and transparent bunkering operations.
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To provide solid evidence in the event of disputes.
SCOPE OF WORK
1. Pre-Delivery Inspection
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Checking vessel draft, tank plan, and sounding table.
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Inspecting seals, tank conditions, temperature, and product status.
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Verifying product information and relevant documents.
2. Sounding/Ullaging of All Tanks
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Conducting precise measurements before and after bunkering.
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Calculating VCF, density, and temperature according to ISO 91 & ASTM standards.
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Determining ROB and total bunker quantity.
3. Monitoring the Entire Bunkering Operation
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Observing pumping rate, line pressure, and temperature variations.
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Recording start/stop time and any operational issues.
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Witnessing bunker sample collection.
4. Post-Delivery Inspection
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Re-measuring all tanks to confirm the actual delivered quantity.
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Comparing results with the Bunker Delivery Note (BDN).
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Providing independent and unbiased assessment.
REPORTING
Upon completion, VSG issues:
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A full Bunker Survey Report
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Calculation sheets
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Photographic evidence
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Observations and abnormalities
Reports can be issued on the same day, depending on client requirements.
WHY CHOOSE VSG?
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Surveyors with over 10 years of experience in marine & bunker inspections.
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24/7 attendance at all major ports in Vietnam, OPL Malaysia, Singapore, and Southeast Asia.
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Fully ISO 9001–certified procedures.
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Clear, transparent reporting with complete documentation.
OUR COMMITMENT
VSG is committed to delivering accurate, impartial, and reliable Bunker Quantity Survey services, ensuring maximum protection of our clients’ interests in every bunkering operation.
