Bunker Quantity Survey
Independent measurement of bunker fuel quantity before and after delivery to verify received volumes.
Priority Service
Bunker Survey Services
Apeks Marine & Engineering provides independent bunker survey services for shipowners, charterers, technical managers, and operations teams — Türkiye-based marine survey and technical consultancy support for bunkering operations.
Request a SurveyThis service is commonly used by charterers verifying bunker deliveries and by shipowners maintaining independent oversight of fuel operations for vessels calling Türkiye ports. In a typical year, Apeks Marine attends 100–120 off-hire bunker surveys and identifies over 3,500 MT of extra fuel quantity discrepancies across those attendances.
Apeks Marine & Engineering is listed among the Republic of Türkiye Ministry of Trade's approved Type B International Surveillance Organizations — learn more about our credentials.
Who This Service Is For
Shipowners, charterers, technical managers, and operations teams involved in bunkering operations who need an independent, on-site verification of fuel quantity and quality.
When a Bunker Survey Is Needed
During scheduled bunkering, at the start or end of a charter period, when a quantity or quality dispute arises, or as part of routine fuel management oversight.
What May Be Reviewed or Attended
Bunkering operations, sounding and sampling procedures, delivery documentation (bunker delivery notes, density/temperature readings), and relevant vessel records, subject to access and scope agreed in advance.
Report Output
A structured survey report documenting observations, measurements, and any discrepancies identified during the survey.
Independent Technical Approach
Findings are reported as observed, without commercial bias, to support the owner's, charterer's, or manager's own decision-making. Attendance is carried out directly, with subcontractor or partner support used when required.
Frequently Asked Questions
What is a bunker survey?
A bunker survey is an independent verification of fuel quantity and/or quality during a bunkering operation, typically covering sounding, sampling, and delivery documentation.
When should a charterer request a bunker survey?
Charterers commonly request a bunker survey at delivery or redelivery of a vessel, during bunkering operations, or when a quantity or quality discrepancy is suspected.
How quickly can Apeks Marine attend a bunkering operation?
For Mersin, Adana, and İskenderun, attendance can typically be arranged the same day or within a few hours of a request. For wider Türkiye-based assignments, timing is subject to scope and schedule.
What documents may be reviewed during a bunker survey?
Typically bunker delivery notes, sounding logs, density and temperature records, and relevant tank plans, where made available.
Can Apeks Marine support bunker quantity or delivery disputes?
Yes — survey findings can support technical review of a quantity or delivery dispute, though Apeks Marine does not act as a legal or claims authority.
Can a bunker survey help identify quantity manipulation?
Part of a bunker survey's scope can include checks for indicators associated with quantity manipulation — such as sounding-pipe irregularities, unauthorized bypass piping, or concealed spaces — alongside standard sounding, sampling, and documentation review.
What does the final report include?
The report documents the scope of attendance, observations, measurements taken, and any discrepancies identified, in a clear, structured format.
Related Services
On / Off Hire Bunker & Condition Survey
Joint bunker and condition assessment at the start or end of a charter period, establishing a clear record for both parties.
Marine Survey
General technical survey covering a vessel's condition, equipment, and operational status, giving owners and managers an independent reference point.
Related Guides and News
Guide
On / Off-Hire Bunker & Condition Survey: A Practical Guide
What an on/off-hire bunker and condition survey covers, how the attendance is carried out step by step, what owners and managers should prepare, and the disputes a joint record prevents.
Guide
Verifying Bunker Quantity: The Cross-Checks That Catch Errors and Manipulation
Field-tested measurement cross-checks for bunker quantity — why single readings mislead, how tank design changes the picture, and where trim quietly distorts the numbers.
News
Titan Unikum LNG Bunker Vessel Completed 15-Year Special Survey in September
Titan Clean Fuels said on 30 September that Titan Unikum completed its 15-year special survey and dry dock at Cosco Shipyard, Guangzhou, with groundwork for a future forward manifold.
News
Phi Earth Seeks Industry Input on Fuel-Verification Platform
Phi Earth Technologies is surveying shipping stakeholders to shape a digital MRV platform for verifying low-carbon fuel origin under FuelEU and IMO rules.