Draft Surveys

Archimedes’ Principle –
Archimedes’ principle is the fundamental natural law of buoyancy, first identified by the Greek mathematician and inventor Archimedes in the 3d century BC. It states that any object floating upon or submerged in a fluid is buoyed upward by a force equal to the weight of the displaced fluid.

The above is the basic principle of the weight determinations (“Draft Surveys”) on bulk cargo’s loaded and/or discharged ,into or ex short sea and deep-sea bulk cargo vessels. The combination of experienced draft surveyors, correct hydrostatic data, the assistance of the vessel’s officers and certain basic requirements regarding the ballast position of the particular vessel, makes it possible to determine the weight of a bulk cargo in an accurate way.


Barge Gauging

With the same basic principle as described under vessel draft surveys, however with some different means, it is possible to determine the weight of bulk materials loaded and/or discharged into motor-barges & push barges. Our surveyors are fully qualified and certified to carry out the above weight determination.


Quality Inspections / Sampling

Our surveyors are very well experienced in the field of commodity inspections and sampling. In many cases, the quality of a certain commodity will be determined as per visual inspection. In several cases however, the quality of a certain commodity will be determined by a combination of visual inspection and sampling, possible to combine with analyses carried out by a fully equipped professional laboratory. Our company is very well experienced and equipped to carry out visual inspection and sampling before, during and after loading and/or discharging bulk cargo’s into/ex deep-sea vessels, short sea vessels, barges & containers and pre-inspections on stockpiled materials. We can carry out the same inspection & sampling services on warehouse stored commodities. Furthermore we have professional equipment to check if commodities are free of radio-activity. Marine Inspection and Logistics International Rotterdam BV is DGFT listed and therefore approved to issue DGFT pre-shipment certificates with regard to materials bound for export to India loaded in Europe, USA, Canada and Caribbean Area.


Load / Discharge Supervision

Besides inspection on quality and weight, we can offer experienced supervision services on loading and discharging commodities / cargo handling with regard to stowage, trimming of cargo, securing/lashing of cargo, cleanliness of holds & containers and all other specific issues which may be relevant for the particular commodity / cargo involved. Furthermore we can offer weighing supervision, in case the weighing of the particular commodity / cargo will be carried out per truck or wagon weighing bridge.


HBI / DRI Shipments

Specialized services are offered in the area of safe storage, handling and shipping of HBI (Hot Briquetted Iron) and DRI (Direct Reduced Iron).

Offered services comprise of; Vessel suitability survey’s,

  • Supervision of vessel preparation for carrying HBI/DRI cargoes,
  • Loading supervision covering; Quality inspections, supervision to safe storage, handling and loading of DRI/HBI (in full accordance with IMO-regulations).
  • Super-cargo attendance during voyage of DRI shipments (in full accordance with IMO-regulations).


Additional Marine Surveys

Besides Draft Surveys, our surveyors are qualified to carry out Bunker Surveys, Hold / Hatch Condition Surveys, On / Off Hire Surveys, Damage Surveys.


Additional Services

  • General Cargo Surveys
  • Tally Inspections
  • Stockpile Audits
  • Stockpile Volume Surveys
  • Cargo Damage Surveys
  • Packing Surveys
  • Advise with regard to transport-loading-logistics-documentation-certification as per letter of credit requirements.


Certification of Services

We will issue relevant certificates for all the services we provide. Our certificates are the assurance of integrity and experience and are accepted and respected in the field of commodity trading and shipping by sellers, buyers, banks and governments. We are certified in order to issue PSI certificates for Indonesia and are able to offer approved DGFT certification for India. Marine Inspections and Logistics Rotterdam B.V. is member of M.R.F. (Metal Recycling Federation), B.I.R. (Bureau of International Recycling) and M.R.A.I. (Metal Recycling Association of India).