Air Management

Question 1

BA Air Management. What are GUN readings?

Answer 1

Checking gauge pressures at landmarks to determine amount of air required to exit building.

GOT

USED

NEED

i.e. Wearer starts with 300 Bar
At landmark has GOT 280 Bar
USED 20 Bar to get to that landmark
So NEEDS 80 Bar to reach exit (20+60TOW)

Question 2

BA Air Management. Calculating Turn Around Pressure TAP

Answer 2

Calculate TAP divide the cylinder contents by half and add half TOW (30bar)

300
Half - 150
+ 30
= 180 bar TAP

300 = 180
290 = 175
280 = 170
270 = 165