Advertisement Emerson has enhanced its Rosemount™ TankMaster inventory management software package to help optimise tank usage and increase safety in full containment storage tanks for LNG and other liquefied gases. These tanks are large, complex structures with a typical capacity of up to 200 000 m 3, which places specific demands on tank gauging systems. By providing both inventory management and roll-over prediction in a single software solution, TankMaster is designed to reduce costs, increase ease-of-use, and reduce the risk of a potential accident. Roll-overs are dangerous releases of boil-off vapour that can occur when LNG stratification is left unchecked. The consequences can be severe – including extensive tank damage and the release of large quantities of LNG into the atmosphere. Organisations are therefore required to implement roll-over prediction measures. Emerson’s Rosemount TankMaster software uses data from level, temperature and density measurement devices incorporated into the Rosemount Tank Gauging System, to detect layering and calculate when a roll-over might occur, enabling operators to take preventative action.