These services involved the gauging of the volume of liquids in a tanker's cargo holds (both before and after loading) and the identification of the type or quality of those liquids (i.e. water, sediments, oil, and/or emulsion).
Ces services consistaient à mesurer le volume des liquides dans les cales (avant et après le chargement) et à définir le type ou la qualité de ces liquides (eau, sédiments, pétrole, émulsion).