Corrosion occurring preferentially at grain boundaries, usually with slight or negligible attack on the adjacent grains. Also called intercrystalline corrosion.

Resin formed by condensation of polybasic and monobasic acids with polyhydric alcohols.

A metal appliance consisting of a thread and screw capable of being set up or slacked back and used for setting up on rigging.

Any metallic structure that is not intended as part of a cathodic protection system of interest.

Incident Reporting Information System

Heavy, linked chain secured to an anchor for mooring or anchoring.

Air cylinder

A device used to protect the user of any electrical system or appliance from shock.

A type of power inverter that produce a high quality (nearly sinusoidal) voltage, at minimum current harmonics.

A term used to describe heat energy lost from a water heater tank.

A company's finished goods, work in progress and raw.

The technique for varying the potential of an electrode in a continuous manner at a preset rate.

A thermometer, invented by James Six in 1782, which simultaneously indicates the maximum and minimum temperatures attained during a given interval of time. A U-tube min/max thermometer

A brace, usually triangular, for reinforcing a corner or angle in the framework of a structure.

An index of the share prices of 30 leading companies in the UK selected to depict British.

The process of payment clearance between two.

Phase Shift Keying. A form of phase modulation of a data signal performed by a modem for transmission over dedicated wire or phone lines.

Precipitation from a cumuliform cloud. Characterized by the suddenness of beginning and ending, by the rapid change in intensity, and usually by a rapid change in the condition of the sky. The solid or liquid water particles are usually bigger than the co ...

Special Material

The amount of sky covered or concealed by clouds or obscuring phenomena. It is reported in tenths, so that 0.0 indicates a clear sky and 1.0 (or 10/10) indicates a completely covered sky. The following classifications are used in aviation weather observat ...