British Thermal Unit. Unidad de energía definida como la cantidad de calor requerida para aumentar una libra de agua de 32°F a 33°F a Presión atmosférica estándar. One BTU is equal to 252 Calories. See also “Calorie” from “July”.

British Standards. UK government agency that defines and maintains technical standards

Component responsible for connecting a device to the drivers of the supply network.

Also called bicromatizado. Type of surface treatment applied to the metal. See “Galvanized”

Range of values ​​through which a change of input produces no noticeable change in the output.