Bunker Quantity Surveys (BQS)

Buyer and Seller peace-of-mind.

BQS will ensure that the quantity and quality agreed on by both the buyer and the seller is adhered to, giving peace of mind to both parties of the trade. The Chief Engineer of the receiving vessel and the captain of the delivery vessel/barge/truck has many other issue they have to deal with, therefore sampling and taking quantity measurements may not take high priority on their list. With our BQS service we take care of the sampling and quantity measurements so you don't have to. We provide designated and experience surveyors for quantity, sampling and quality who will ensure that the important part of the deal is handled with accuracy. Quantity differences must be confirmed at the time of bunkering and resolved if possible with a letter of protest issued. Unless measurement has been taken by independent surveyor, witnessed by both the vessel and supplier, the disputed difference my not ever resolve.

The quality of the fuel will depend on the method used to sample when the vessel is bunkering. A five liter sample out of the entire bunker is what is used to analyze the quality of bunker deliver, Therefore it is important that this sample be a good representative of what the entire vessel/barge/truck holds. If the sample is not representative of the fuel delivered, it could be catastrophic for the vessel as the fuel sampled may not display any problems that may be present in the fuel as a whole. The bonded retain sample may also have the same problem which may further complicate a claim.

In many cases the physical fuel supplier will not comply with your bunker purchasing guideline since he is not selling the fuel direct to you and have different agreement with the buyer. We offer the buyer and the seller peace of mind by providing experienced surveyors to oversee the bunker process.

Our BQS surveyors are equipped with approved calibrated equipment as well as PPE. They will remain onboard during the entire bunker operation ensure the following:

1. Proper communication with the agent and suppliers for smooth delivery 
2. Conduct meetings with Chief Engineers prior to boarding in order to ensure proper boarding of the barge, loading installation, road trucks and discharge plans such as:

  • Quantity and grade of fuel that will be delivered
  • Deliveries of different grades
  • Sampling procedure

3. Invite the Chief Engineer and the supplier representative to witness the measurement on the supplying barge(s), loading installation or road trucks
4. Manual measurements of the volume and weight onboard of the supplying barge(s), loading installation or road trucks, including non-nominated bunker tanks
5. Confirming that sampling facilities are in compliance
6. ROB Inspection of supplying barge after completion of bunkering
7. Good records are kept throughout the bunkering
8. All samples are taken and shipped/retained as per client requirements
9. All bunker details reported via web-based reporting system or as client request
10. Quantity report include the following:

  • Quantity details
  • Timesheet
  • Sampling information, point used, type of sampling devise used, sampling method used (e.g. drip sample or spot sample)
  • Samples seal data
  • Viscosity, water, sulfur etc. as shown on the DBR
  • loading samples received from supplier and the way of sampling
  • LOP, if any
  • Statement-of-fact, if needed
  • Any irregularity will be reported directly to the client/agent


11. The actual density of the fuel measured in the laboratory and density differential calculated and the difference in MT due to density difference are calculated and included in the report.
12. Digital picture will be taken of the whole operation where permissible.