Pressure altitude corrected for temperature.

A unit of weight; used to express the yarn number of polyester and other continuous filament fibers.

A synthetic polyester fiber. The first manmade fiber ever used in fire hoses.High-strength, low-stretch material ideally suited for fire hoses.

Complete power cycle of an engine—including intake, compression, power, and exhaust strokes.

The act of vulcanization. In fire hose, the vulcanization of the tube to the jacket.

Weight of a vehicle including full fuel tank, cooling system, crankcase, spare wheel, and other standard equipment.

The waviness of the yarn in a woven jacket. The difference in distance between two points on a yarn as it lies in a fabric, and their same two points when the yarn has been removed and straightened.

Cotton yarn combined with  polyester yarn filler for abrasion resistance.

Spun cotton fiber yarn woven into a hose.

Eighty-five percent point established from a maximum. Performance test of a pump and corrected to sea level.