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OBQ

On-Board Quantity (before loading)

Category:Abbreviations

(Free Alongside Ship) (...Named Port of Shipment):A Term of Sale which means the seller fulfills his obligation to deliver when the goods have been placed alongside the vessel on the quay or in lighters at the named port of shipment.This means that the bu ...

Category:Sea Words

Steel surround to a hatchway vertically to the deck for preventing water ingress into the hold and to lessen risk for persons.

Category:Technical Terms

American Society For Testing and Materials. -- a society for developing standards for materials and test methods.

Category:Sea Words

The passing of a substance or force into the body of another substance.

Category:Energy Terms

An anemometer utilizing the principle that the pitch of the aeolian tones generated by air moving past an obstacle is a function of the speed of the air. Largely a curiosity and has been put to no practical application in modem meteorology.

Category:Meteorology

A hypothetical temperature characterized by a complete absence of heat and defined as 0 K, -273.15 C, or -459.67 F.

Category:Meteorology

The process by which one object becomes adhered to another by the binding action of ice.

Category:Meteorology

Generally in law, the voluntary relinquishing of all rights, title or possession of property.

Category:Financial Terms

The use of mechanical heat pipes or pumps to transport heat by circulating heat transfer fluids.

Category:Energy Terms

A/C

Account.

Category:Sea Words

A special type of oil free, positive displacement reciprocating compressor, working without piston rings. The seal between piston and cylinder wall is produced by a series of labyrinths.

Category:Sea Words

A number of quantity defining a limit that errors will not exceed when a device is used under specified operating conditions. Accuracy rating can be expressed in a number of forms, i.e. in terms of the measured variable (+/- 1 C), percent of span (+/-0.5% ...

Category:Meteorology

Temperature based on an absolute scale.

Category:Meteorology

A thermodynamic change of state in a system in which there is no transfer of heat or mass across the boundaries of the system. In an adiabatic process, compression always results in warming, expansion in cooling. Compare to diabatic process.

Category:Meteorology

The volume of water required to cover one acre to a depth of one foot: 43,560 cubic feet.

Category:Meteorology

Intended to prevent fouling of under-water structures, such as the bottoms of ships; refers to the prevention of marine organism's attachment or growth on a submerged metal surface, generally through chemical toxicity caused by the composition of the meta ...

An addition agent for electroplating solutions to prevent the formation of pits or large pores in the electrodeposit.

Clean Ballast Tanks

Category:Abbreviations

Without loss or gain of heat to a system. An adiabatic change is a change in volume and pressure of a parcel of gas without an exchange of heat between the parcel and its surroundings. In reference to a steam turbine, the adiabatic efficiency is the ratio ...

Category:Energy Terms