INERGEN AGENT ATMOSPHERIC CORRECTION FACTORS (NFPA 2001)
Atmospheric
Equiv
alent Altitude Enclosure Pressure Correction F
actor
–3,000 ft. ( 914 m) 16.25 psia (84.0 cm Hg) 1.11
–2,000 ft. ( 609 m) 15.71 psia (81.2 cm Hg) 1.07
–1,000 ft. ( 305 m) 15.23 psia (78.7 cm Hg) 1.04
0 ft. ( 000 m) 14.71 psia (76.0 cm Hg) 1.00
1,000 ft. ( 305 m) 14.18 psia (73.3 cm Hg) 0.96
2,000 ft. ( 609 m) 13.64 psia (70.5 cm Hg) 0.93
*3,000 ft. ( 914 m) 13.12 psia (67.8 cm Hg) 0.89
4,000 ft. (1220 m) 12.58 psia (65.0 cm Hg) 0.86
5,000 ft. (1524 m) 12.04 psia (62.2 cm Hg) 0.82
6,000 ft. (1829 m) 11.53 psia (59.6 cm Hg) 0.78
7,000 ft. (2133 m) 11.03 psia (57.0 cm Hg) 0.75
8,000 ft. (2438 m) 10.64 psia (55.0 cm Hg) 0.72
9,000 ft. (2743 m) 10.22 psia (52.8 cm Hg) 0.69
10,000 ft. (3048 m) 9.77 psia (50.5 cm Hg) 0.66
*NOTE: On systems between +3000 ft. (914 m) and –3000 ft. (914 m), using the Atmospheric Correction Factor is optional.
Atmospheric Corrections Factors Chart
SECTION V
UL EX-4510 12-1-01 Page 5-20
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