Ullage 03 : Free space above a liquid contained in a tank, drum or tank-container, expressed as a percentage of the total capacity. Ullage is often used to leave room for possible expansion of the liquid
SC Transgor Logistik SRL, International Transport and Eastern Europe Freight Forwarding, Freight Forwarding, Logistics & Transport Glossary, Tomesti, Iasi, Romania 2012. http://www.transgor.ro/wp-content/uploads/2012/05/ termeni-logistici.pdf, (Log - Brit) {573}