Jargon Buster

Letter A

ABC Dry Powder

ABC Dry Powder is a fire extinguisher agent which is suitable for use on class A, class B and class C fires. It is also suitable for electrical fires.

Adjustable Back Check

Some door closers have a back check feature which prevents the door from being opened too quickly. Usually the door closer will have a valve located somewhere on the main body of the device which allows the amount of resistance to be adjusted.

Adjustable Latching Action

During the last 15° of closure a door closer has to cope with the increased resistance provided by the door latch. Door closers with an adjustable latching action will have a means of increasing/decreasing the closing force for the last 15° of closure to ensure that the door latches firmly and securely.

AFFF Foam - Aqueous Film Forming Foam

AFFF Foam is a water based fire extinguisher agent which is suitable for use on class A and class B fires.