BA Supply => breathing apparatus supply

The History of Self Contained Breathing Apparatus in the British ...
The following is hopefully going to be a history of breathing apparatus (BA) used within the British Fire Service. This very important ...
www.fire.org.uk/ba/intro.htm

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Note added at 1 hr 4 mins (2004-12-05 23:49:56 GMT)
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Breathing apparatus (BA) use – new users
Breathing apparatus (BA) use – new users. Course Description Training is operation, respiration/asphyxiation, respiratory requirement ...
hrs.massey.ac.nz/tdu-prog-detail.php3?module_id=84

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Note added at 1 hr 54 mins (2004-12-06 00:39:24 GMT)
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North® 800 Series™ Self-Contained Breathing Apparatus
SCBAs provide the wearer with the highest level of respiratory protection available. These units utilize either a thirty or sixty minute cylinder containing pressurized air which is delivered \"on demand\" to the facepiece. Because the cylinders are worn on the back of the worker, SCBAs are completely portable, enabling the worker the maximum mobility for crucial applications such as emergency response and rescue.
http://www.firehouseinternational.com/usersite/fire/fireitem...