Short Range Certificate (radio)

Standardized weights or volumes for heating fuels.

Passenger Vessel Association.

Is used in psychrometry and is the temperature recorded by a thermometer whose bulb has been covered with a wetted wick and whirled on a sling psychrometer. Taken with the dry bulb, it permits determination of relative humidity of the atmosphere.

A fabric bag through which a gas stream is passed for the removal of particulate matter.

An instrument that, once established, cannot be modified or cancelled without the agreement of all parties concerned.

NEXt Generation RADar. A NWS network of about 140 Doppler radars operating nationwide.

See radar theodolite, radio direction-finder.

Human Reliability Analysis Used in safety studies.

The compression of an air actuator (air spring) below its design height.

The decomposition of organic material to alcohol, methane, etc., by organisms, such as yeast or bacteria, usually in the absence of oxygen.

The correctable part of the inaccuracy of an instrument.

The sum of all the costs both recurring and nonrecurring, related to a product, structure, system, or service during its life span or specified time period.

A thermometer with a muslin-covered bulb which is moistened. used to measure wet-bulb temperature.

(1) Said of ship's head when it moves away from wind, especially when tacking. (2) To discharge a crew and close Articles of Agreement of a merchant ship.

A salt or ester of carbonic acid.

Permanent pip iron ballast specially shaped and placed along each side of keelson. Name is sometimes given to any iron ballast.

Tanker, Liquefied Gases.

The temperature at which a solid substance undergoes fusion, i.e. melts, changes from solid to liquid form. All substances have their characteristic melting points. For very pure substances the temperature range over which the process of fusion occurs is ...

An instrument which measures the effective terrestrial radiation. See Angstrom pyrgeometer.