The Association of Bulk Terminal Operators (ABTO) is called for a complete overhaul of cargo liquefaction tests.

It wants more rigorous examination of raw ores and less common cargoes, such as nickel ore, fine wet coal and bauxite.

Professor Mike Bradley, a member of ABTO's advisory panel and head of Greenwich University’s Wolfson Centre for bulk solids handling technology, said the current measures are inadequate, especially for raw ores and other materials being loaded in ports where conditions are inclement.