Draft Surveys are intended to determine the weight of cargo loaded or discharged from a ship. It measures the displacement of the water both before and after the loading or unloading, with the resulting difference between the two displacements representing the weight of the cargo.
We carry out draft surveys according to defined international guidelines and always considering several key factors, including sea water density, changes in the ballast between initial and final draft readings, changes in the vessel’s fresh water, bunkers, etc., trim and deformation corrections, etc. We use data from the vessel’s draft tables.
Technical skills and experience
We use our technical skills and experience to accurately calculate initial and final draft survey calculations with our own templates or our client’s on request. Sometimes, intermediate calculations are required. Final results and certifications are sent at the end of the service.
We carry on draft surveys on behalf of charterers or owners, shippers, or consignees, appointed by a wide range of companies: Global Inspection Companies, Ship Managers, Ship Operators, Ship Owners, Ship Brokers, Charterers, Local Agents, P&I Clubs, Insurance Companies, etc.
We carry out Draught Surveys in the following ports of Spain:
Castellon, Sagunto, Valencia, Alicante and Cartagena.
We ensure that our calculations, certificates and data have the best quality. AB SURVEYORS works under ISO-9001:2015 Quality Management System approved by Lloyds Register under UKAS international standards.