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OBQ

On-Board Quantity (before loading)

Category:Abbreviations

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

Category:Energy Terms

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

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

Category:Sea Words

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

Category:Meteorology

Freight payable back to the port of loading or another convenient port when the vessel is unable to reach the port of destination.

A/C

Account.

Category:Sea Words

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 ...

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

Category:Meteorology

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

Category:Financial Terms

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

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

Freight rate for shipping container for a particular commodity.

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

Category:Meteorology

Temperature based on an absolute scale.

Category:Meteorology

Striking "bells" a little before the proper time at the end of a watch. More generally, doing something unjustifiably or unnecessarily early.

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

(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

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