Editing Buddy check (section)

=== BAR ===
'''BAR''' is another [[acronym]] for the parts of a buddy check, used by the [[British Sub-Aqua Club]] (BSAC):<ref name=BSAC/>

; B - Buoyancy : Test and demonstrate how each buoyancy device, such as a [[Buoyancy compensator (diving)|buoyancy compensator]] or [[diving suit|dry suit]] is inflated or vented. It is important to test common failure modes, for example, that the device remains inflated when required and that the inflation stops when required. [[Rebreather]] divers may test the breathing loop to ensure that it does not leak under a positive internal pressure and negative internal pressure.

; A - Air : Test that each air source has its cylinder valve open, has sufficient gas, is functioning and has no taste. If the indicating needle of the contents gauge moves when the diver inhales that may indicate the [[Scuba cylinder valve|cylinder valve]] is only partially open and may not provide enough gas at the higher ambient pressures  at depth. An oily taste to the gas may indicate a contaminated gas fill. Some [[Rebreather diving|rebreather divers]] breathe from the loop for 2 or 3 minutes before entering the water, to check that the [[soda lime]] of the [[carbon dioxide]] scrubber is active, but this has been shown to be unreliable.

; R - Releases : Check how to operate the releases that can be used in an emergency to separate the diver from the [[diving weighting system|weighting system]], [[Buoyancy compensator (diving)|buoyancy compensator]] and [[scuba set]].