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Inspection Services

Stewart Inter Sea offer bespoke inspection formats, tailored precisely to meet the requirements of our clients.


With our diverse spectrum of services incorporating quantity and quality inspection of Crude Oil and refined products, we are confident and pleased to help find a solution for all your inspection needs.

We also provide independent quantity inspection, quality and witnessing or analysis of

Crude Oil, Petroleum Products, Liquefied Gases, Chemicals

Inspection Services
Lab Services

Our head laboratory is based in Lome, Togo, conveniently located to serve offshore Ship-to-Ship operations, as well as local shore-side terminals. Our second laboratory is based in Cotonou, Benin, is responsible for product import certification on all products entering the country via the terminal.

Equipped with the latest necessary instrumentation and analytical techniques, our laboratory in Lome is equipped to perform analysis on a range of petrochemical samples, from Density and Flash Point to more complex analysis such UV Sulphur analysis and ICP. Our most recent addition is an Analytik Jena ICP-OES PQ9100 Series, for testing Metals by IP501. This laboratory is also working towards the standard ISO 17025.

Currently we are the only Laboratory in Lome able to offer Mid IR Spectroscopy FAME Analysis to EN 14078 or ASTM D7371 and ASTM D6304 for Karl Fischer.

Both of our laboratories are operated 24 hrs per day, 365 days of the year.

We offer a comprehensive spectrum of analysis for Gas Oil, Fuel Oil, Gasoline, Jet Fuel and Crude Oil.

Stewart Inter Sea has experience in setting up and manning offshore mini-laboratories, on board mother vessels stationed offshore West Africa.

For a current list of available analysis or further information on any of our services,

please contact Stewart Inter Sea directly

Lab Services
Loss Control

Our team of experts are able to identify, advise and resolve cargo, marine or technical issues, eradicating or minimising financial losses due to actual or potential physical losses, cargo quality or demurrage claims.


With 100% expeditor attendance onboard the vessel or terminal throughout the entire load, discharge or STS operation, we are there to evaluate and identify areas of risk / potential losses, either physical or apparent. 

Attending Expeditor will have a full commercial awareness of our principal's requirements. Evaluate and implement with the vessel an effective C.O.W procedure to eradicate or minimise any ROB. We remain onsite, negotiating / mitigating any adverse cargo values.


We also provide expert witnessing of analytical analysis within terminal or 3rd party laboratories.

Loss Control
Government Export Supervision Schemes

We work closely with Governments to safeguard their interests and fully protect them with regard to verification of quantity, ensuring

  • Bill of Ladings truly reflect the quantity shipped by the exporter.

  • Verifying the quality, where quality may have a reflection on pricing.

  • Fiscal Auditing, this service enabling at a glance, the true position on fiscal losses due to incorrect practices with metering or other issues.


Meter auditing is also a service which ensures that meters at export or collecting facilities (Crude Oil), are properly calibrated and records maintained to manufacturers standards.This is a service becoming more and more standard on the African Continent, as mechanical failings easily resort to losses. Our superintendents easily identify shortfalls in maintenance and record keeping in this field of operation.

Government Export Supervision Schemes may include the following procedures:

  • Fiscal auditing (Undertaken by qualified Chartered Accountants)

  • Product quantity and quality control

  • Pipeline monitoring

  • Point of export monitoring and controlling

  • Custodial document generation and auditing

  • Custodial transfer monitoring

Government Export Supervision Scheme
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