Cargoes that can undergo liquefaction:
(1) metal ores: iron, nickel, bauxite
(2) fluorospar
(3) some types of coal
(4) sinter or pellet feed (iron ore)
A cargo that may liquefy is designated as a Group A hazards by the IMSBC Code.
Risk factors for liquefaction:
(1) excess moisture (above the Flow Moisture Point, or FMP)
(2) vibration from movement, waves and/or machinery
(3) fine particle size
Hazards associated with liquefaction:
(1) altered center of gravity, which can cause a ship to roll and capsize
(2) worker entrapment
