The Professional Survey team continues providing their draft survey services in the Spanish ports, allowing the cargo traffic in spite of the Covid-19 virus.
The draft survey is a measurement method who allows to determine the weight of bulk cargo loaded/unloaded in a ship checking the draughts difference. The technique is based on the Archimedes theorem who says that “A body at rest in a fluid is acted upon by a force pushing upward called the buoyant force, which is equal to the weight of the fluid that the body displaces.”
To obtain exactly measurements during the draft method, a solid knowledge and big experience of the cargo surveyor is required because there are lots of factors to analyze and control in order to avoid distortions in the results.