Independent
We act as an impartial third party to help verify quantities, procedures and documentation during marine fuel operations.
Bunker Quantity Surveys | Marine Fuel Inspection | Vessel Fuel Support
Bunker Quantity Surveys (BQS)
GMS provides accurate, impartial and reliable Bunker Quantity Survey services across the ARA Region, North France, the North Sea Anchorage, Germany and other regions on request.
- Bunker Quantity Survey
- ASTM guideline & SS600 sampling procedure aligned
- ARA Region, North France, North Sea Anchorage & Germany
- Additional regions on request
Why GMS
Independent Survey Support for Critical Marine Fuel Operations
Marine fuel operations involve high-value deliveries, strict procedures and multiple parties. GMS helps create clarity through independent attendance, accurate measurement support and structured documentation.
Accurate
Our services focus on precise measurement support, clear reporting and proper observation during bunker operations.
Fast Response
Operational support for planned and urgent survey requests across key bunker regions.
Procedure-Driven
Our surveys are performed in line with the latest ASTM guidelines and SS600 sampling procedures to support consistent and reliable survey outcomes.
Our Services
Our Marine Survey Services
GMS supports clients with independent survey services designed to reduce commercial risk, improve transparency and support accurate bunker and vessel fuel operations.
Bunker Quantity Survey — BQS
Independent attendance during bunker delivery to help verify the quantity supplied, support accurate measurement and document the operation from start to finish. GMS surveys are carried out in line with the latest ASTM guidelines and SS600 sampling procedures.
- Opening and closing measurements
- Bunker tanker and vessel quantity checks
- Temperature and volume verification support
- Documentation and statement of facts
- ASTM guideline and SS600 sampling procedure alignment
- Support in case of quantity disputes
Bunker Quality & Sampling Support
Representative sampling support during bunker delivery, carried out in line with the latest ASTM guidelines and SS600 sampling procedures, with attention to proper sealing, labelling, documentation and custody of samples.
- Sampling support in line with ASTM guidelines and SS600 procedures
- Continuous drip sampling support where applicable
- Sample bottle sealing and labelling
- Sample distribution documentation
- Support for commercial sample requirements
- Clear chain-of-custody support
Remaining On Board — ROB Survey
Verification of fuel remaining on board by physical measurement, temperature observations and comparison with vessel records.
- Fuel tank measurements
- Temperature observations
- Comparison with logbook figures
- ROB reporting support
- Clear quantity documentation
On-Hire / Off-Hire Survey
Fuel quantity verification at the moment of vessel delivery or redelivery between owner and charterer.
- On-hire fuel verification
- Off-hire fuel verification
- Tank measurements and correction support
- Clear certificate-style reporting
- Transparent fuel quantity documentation
De-Bunker Survey
Independent support during de-bunkering operations where fuel is removed, returned or transferred.
- Measurement before and after operation
- Quantity verification
- Sampling support
- Documentation of transfer events
- Operational transparency
Sludge Survey
Measurement and documentation support for sludge discharge operations from vessel to barge, truck or receiving facility.
- Opening and closing measurements
- Discharge quantity checks
- Documentation support
- Operational transparency
Marine Inspection Support
Additional marine inspection attendance and operational support available depending on vessel, port and client requirements.
- Vessel attendance
- Operational observation
- Port coordination support
- Custom inspection requests
- Marine fuel inspection support
The GMS Advantage
Why Choose GMS?
Bunker operations require accuracy, transparency and independent documentation. GMS supports clients by providing impartial attendance, measurement support and structured reporting during critical marine fuel operations.
- Independent third-party perspective
- Clear communication with vessel, supplier and agent
- Structured survey documentation
- Practical operational support
- Fast response in major bunker regions
- Professional communication before, during and after attendance
- Focused Bunker Quantity Survey expertise
- Surveys aligned with the latest ASTM guidelines and SS600 sampling procedures
Our Method
How Our Survey Process Works
From nomination to reporting, GMS follows a clear and structured process to support efficient marine fuel survey operations.
- 1
Nomination
You submit the vessel details, port, ETA, supplier information and required service.
- 2
Planning
GMS reviews the request, confirms feasibility and coordinates attendance with the relevant parties.
- 3
Attendance
Our surveyor attends the operation, observes the process and performs the required checks and documentation.
- 4
Measurements & Sampling
Measurements, temperatures, documentation and sampling support are handled according to the agreed service scope and in line with the latest ASTM guidelines and SS600 sampling procedures where applicable.
- 5
Reporting
You receive a clear report with the relevant findings, observations and supporting documentation.
Where We Operate
Bunker Survey Coverage
GMS provides Bunker Quantity Survey services across the ARA Region, North France, the North Sea Anchorage and Germany. Additional regions are available on request, depending on vessel schedule, port access and operational requirements.
ARA Region
Independent bunker survey attendance across key ARA ports, including Antwerp, Rotterdam and Amsterdam.
North France
Bunker Quantity Survey support available for selected ports and operations in North France.
North Sea Anchorage
Survey attendance for offshore and anchorage-based bunker operations, subject to planning and feasibility.
Germany
Marine fuel survey support available in Germany for bunker operations and vessel fuel-related services.
Other Regions on Request
Additional locations can be reviewed based on vessel ETA, operational scope and surveyor availability.
About Us
About GMS — Global Marine Services
GMS — Global Marine Services is a marine survey company focused on independent Bunker Quantity Surveys and vessel fuel-related survey services. We support clients with accurate measurement support, transparent documentation and professional attendance during marine fuel operations.
Our goal is to help clients reduce uncertainty, prevent disputes and make better-informed operational decisions during high-value bunker and marine fuel operations.
Our surveys are carried out in line with the latest ASTM guidelines and SS600 sampling procedures, with attention to proper measurement, sampling, documentation and operational transparency.
Our Clients
Who We Serve
GMS supports companies that require clarity, documentation and independent attendance during marine fuel operations.
Ship Owners
Independent fuel quantity verification and survey support during operational and commercial vessel movements.
Charterers
Transparent on-hire and off-hire fuel verification to support fair settlement between parties.
Vessel Operators
Reliable attendance and documentation support to keep bunker operations accurate and on schedule.
Bunker Suppliers
Impartial quantity and sampling support that adds confidence and transparency to every delivery.
Marine Fuel Traders
Independent verification support to protect quantity positions and reduce commercial exposure.
Brokers
Trusted survey coordination support that helps keep transactions clear for all parties involved.
Port Agents
Practical local coordination and surveyor attendance support during bunker and fuel operations.
Insurance & Claims Support
Structured documentation and observations that support claims handling and dispute resolution.
Get in Touch
Request a Survey
Please share the details of your request and GMS will get back to you as soon as possible.
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Phone+32 485 51 00 09
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CoverageARA Region, North France, North Sea Anchorage, Germany and other regions on request
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AvailabilityOn request
Surveys are carried out in line with the latest ASTM guidelines and SS600 sampling procedures.