Charging of the gas pad, usually nitrogen, above the liquid cargo to prevent the cargo coming in contact with air.

Pump rooms and other enclosed spaces which contain cargo handling equipment and similar spaces for cargo handling.

A Very Large Gas Carrier has normally the capacity to load about 80,000m3 of LPG. In order for the gas carrier to safely load, unload and carry liquefied gases a set of systems and equipment installations are required:

The ship has four membrane type cargo tanks. A tripod mast is built inside each tank with the filling line and two 1700 m3/h electric, submersible pumps attached. Complete discharge can be done within 12 hours...

Gas added to the vapour space of the vessel or tank to prevent the forming of an explosive or ignitable vapour-air mixture.

Equipment used for loading/discharging operations: e.g. cargo cranes, side-loading system with conveyors, sideshifters, elevators, belt conveyors, ro-ro cargo handling gearand cargo pumping systems.

A cleat applied manually by a lever to provide the necessary locking. Hatch covers are secured to the coaming by quick-acting cleats.

Shipboard cranes of various types and capacities are still required for multi-purpose cargo vessels, geared bulk carriers, feeders, reefers, heavy lift vessels and some forest product carriers.

A space used for the control of cargo handling operations.

An artificial solid construction, alongside or projecting into a harbour or basin, which acts as a landing place for cargo and passengers. It may also function as a fitting out or repair place for a ship moored alongside.

A raised upper deck at the after end of a ship. It is usually a feature of smaller vessels.

Pumpman and Electrician. Trained in all crafts necessary for engine maintenance (welding, refrigeration, lathe operation, electricity, pumping, water purification, oiling, evaluating engine gauges, etc.)

A: Steel surface covered completely with adhering mill scale and with little or nor rust. B: Steel surface which has started to rust and from which the mill scale has begun to flake.

The arrangement for containment of cargo including, where fitted, a primary andsecondary barrier, associated insulation and any intervening spaces, and adjacent structure if necessary for the support of these elements.

The part of the ship that contains cargo holds, cargo tanks, slop tanks and cargo pump-rooms including pump rooms, cofferdams, ballast and void spaces adjacent to cargo tanks and also deck area...

A visible corrosion product consisting of hydrated iron oxides. Rust is formed on steel surfaces exposed to moist atmospheric conditions.

Cargo access equipment such as stern ramps, side ports, bow doors, etc. See also Ro-ro cargo handling gear.

An interactive PC-based software system developed by Lloyd’s Register.

The freight carried by a ship.

The four main points of the compass: north, east, south and west.