Surveyor - Vessel
DRAFT SURVEY
The purpose of SIM Draft Surveys is to determine the weight of cargo on board the vessel using the density of the water in which the vessel is floating; from this total they subtract the weight of the vessel's structure and other weights on board which are not cargo. The difference obtained is the cargo weight. This survey includes reading the vessel’s drafts, measuring the ballast water, fuel and diesel oil and other liquids on board, and calculating the final quantity by using the vessel’s approved dead-weight scales and tank tables, and other documents.