The space, which may or may not be an interbarrier space, occupied wholly or in part by insulation.

Decks, bulkheads and walls are very ofen covered by insulation materials in order to provide acoustic, fire or thermal insulation.

All exposed surfaces which personnel are likely to come in contact with are to have temperatures that do not exceed 71°C. If this cannot be achieved, the exposed surfaces are to be insulated or shielded.

The cargo holds on board trawlers, reefers and deepfreeze vessels are usually insulated with polyurethane foam and finished with special waterproof glued plywood. Instead of polyurethane foam, mineral wool can be applied or the combination of both.

Rockwool, polyurethane, Styrofoam, glass fibre or other material used for insulation.

A flanged joint incorporating an insulating gasket, sleeves and washers to prevent electrical continuity between pipelines, hose strings or loading arms.

The frame of a container constructed to hold one or more thermally-insulated tanks for liquids.

A container insulated on its walls, roof, floor, and doors, to reduce the influence of external temperatures on the cargo.

A system designed to measure and display the state of a monitored parameter and which may include one or more of sensors, read-outs, displays, alarms and means of signal transmission.

Compressed air which is suitable for use in pneumatic control equipment. It must be free of oil and dust and dry enough to ensure that no water condenses anywhere in the system.

A device which provides a measurement or indication of the quantity measured.

A London-based organisation formed in 1899 to promote the scientific development of all aspects of marine engineering.

The rate of discharge of oil in litres per hour at any instant divided by the speed of the ship in knots at the same instant.

A steel plate of greater thickness which is fitted at a region of increased stress, e.g. hatch corner.

Plating forming the top of the double bottom.

The innermost plating forming a second skin of the ship hull.

The Organization established by the Convention on the International Maritime Satellite Organization adopted on 3 September 1976.

A device which receives pressurized fuel as a liquid and sprays it into an engine cylinder as a fine mist. It consists of a nozzle and nozzle holder or a body.

The process of spraying fuel into an engine cylinder by an injector.

Substances used to prevent or retard a chemical or electro-chemical reaction, often used to render corrosion products less soluble and thereby tending to restrain electro-chemical processes.