A component of a water heating system that opens at a designated temperature or pressure to prevent a possible tank, radiator, or delivery pipe rupture.

A mat of fibers that provide a barrier to particles entrained in the flow of air or gas.

Health and Safety at Work Act

Forming an adherent phosphate coating on a metal by immersion in a suitable aqueous phosphate solution. Also called phosphatizing. See also conversion coating.

Ready Reserve Force

Category of bulk carrier 100.000-180.00DWT so called she is too large to pass Suez and Panama Canals.

Cool air pulled ashore by rising thermal air currents caused by the air inland rising as the land heats up

A unit of power equal to 1,000 watts.

A trade arrangement in which goods are shipped to a foreign buyer without guarantee of payment.

See 'futures.

The actual temperature of a moving gas stream. It is the temperature indicated by a thermometer moving in the stream with the same velocity as the stream.

Cargo Ship Safety Construction Certificate

Intergranular fracture of maraging steels with decreased toughness resulting from improper processing after hot working. Thermal embrittlement occurs upon heating above l095

The area (in sq inches) of the filter element that is exposed to the flow of air or fluid for effective filtering.

The measurement and computation of wind speeds and directions at various levels above the surface of the earth. Methods include pilot balloon observations, rabals, rawin or rawinsonde observations, radar tracking, or acoustic sounding.

An instrument designed to detect the ultrasonic emissions and convert them to audible signal.

A call option with an exercise price below the price of the underlying instrument (e.g..

The maximum rope tension (in kilonewtons), measured at the drum exit when the winch is hoisting or hauling in at the nominal speed with the rope wound on the drum in a single layer.

To keep a weather eye is to be on the alert (heads up).

A framing of metal fitted over an opening in a deck, with glass or plexiglass inserted for the admission of light into a cabin, engine room, etc.