Use And Care Manual

Glossary

Acrylonitrile Butadiene Styrene (ABS) Plastics

A group of plastics made from polymers with prescribed

percentages of acrylonitrile, butadiene and styrene.

Aging The effect on materials exposed to an environment

for a period of time. Also, the act of exposing materials

to an environment for a period of time.

Beam Loading The process of applying a specified force

(load) to a piece of pipe that is supported at two points.

It is usually expressed in pounds per the distance between

the centers of the supports.

Belled-End A term used to describe a pipe end that has

been enlarged to have the same inside dimensions as

a fitting socket. It acts as a coupling when joining pipe.

Condensation A chemical reaction involving the

combination of molecules with the result being the

elimination of a simple molecule, such as water, and the

formation of a more complex compound of greater molec-

ular weight.

Crazing Small, fine cracks on or under the surface of

a plastic.

Cure To change the properties of a polymer to a stable,

usable, and final state by the use of chemical agents, heat

or radiation.

Deflection Temperature (Heat Distortion) The

temperature which will cause a plastic specimen to deflect

a certain distance when a specified load is applied.

Glossary