Bunker Quantity Surveys
Accurate measurement of fuel quantity delivered or remaining on board to prevent commercial disputes.
Overview
Comprehensive Bunker Quantity Surveys You Can Trust
Bunker quantity disputes are among the most common — and costly — sources of friction between owners, charterers, and suppliers. SIMS surveyors attend bunkering operations to independently verify quantity delivered, using ullage/sounding measurement, density and temperature correction, and cross-checks against the supplier's delivery note and the vessel's own figures.
Where quality is in question alongside quantity, we draw certified fuel samples in line with MARPOL Annex VI requirements and industry best practice, sealed and witnessed for chain-of-custody integrity. Our reports give clients a defensible, timestamped record they can rely on in any subsequent commercial or arbitration dispute.
Service Benefits
- Independent verification of quantity delivered vs. invoiced
- Certified sampling for fuel quality assurance
- MARPOL Annex VI-aligned sampling procedures
- Rapid dispute resolution support with defensible data
- Experienced surveyors across bunkering ports region-wide
- Available on short notice for time-critical bunkering windows
Our Inspection Procedure
- 1
Pre-Bunkering Briefing
Coordination with vessel and supplier to confirm timing, grade, and quantity ordered.
- 2
Initial Soundings
Ship's tank soundings taken and verified before bunkering commences.
- 3
Delivery Monitoring
Surveyor attends the full transfer, monitoring flow meter readings and hose connections.
- 4
Sampling
Continuous drip or manifold samples drawn, sealed, and witnessed by all parties.
- 5
Reconciliation & Reporting
Final soundings taken, quantities reconciled, and an independent bunker survey report issued.