Appendix 4 Figure 7. Minimum Safe Compartment Volume for One Extinguisher in Unventilated Compartments.
Minimum Safe Volume for One 5 B:C Extinguisher (ft?)
Agent Weight® Agent (Ibs) Level only) (info Sea Pressurized 8,000 ft Aircraft CPA 12,500 ft 14,000 ft Non-Pressurized Aircraft 18,000 ft 25,000 ft HCFC Blend B 5.5 1102 1482 1768 1877 2209 2973 HFC-227ea® 5.75 104 141 167 177 209 280 HFC-236fa® 4.75 79.8 107 128 136 159 214 Halon 1211° 2.5 1116 1502 1790 1908 2232 3016 Halon 1211de 2.5 558 751 895 954 1116 1508 Halon 1301° 5.0 192 258 308 327 385 517 a Agent weight for a 5B: C extinguisher is extinguisher dependent. Nozzle design, pressurization differences and other factors can result in different agent weights for extinguishers using the same agent. The tabulated minimum safe volumes should be corrected for the actual agent weight if different from the agent weight in this figure.
b Values based on the safe human concentration. See reference report appendix 3.
paragraph 7m of this AC.
Values are based on the Halon 1211 NOAEL concentration of 0.5% (w.v) Values are based on the Halon 1211 LOAEL concentration of 1.0% (v/v).
e Safe human concentrations are not available for Halon 1211. The Halon 1211 LOAEL concentration of 1.0% (v/v) has been shown to be safe for humans. See report mentioned in note b above. Also, the safety factor is smaller than that set for other agents.
(3) Extinguishers in Ventilated Compartments. The minimum safe volumes of various single SB:C extinguishers when used in ventilated compartments, and assuming perfect mixing can be obtained by applying applicable multiplication factors found in Figure 6 above as a divisor to the minimum safe volume obtained in Figure 7 above.
3. Extinguisher Weights. Figure 8 below illustrates the fire fighting performance, agent and gross extinguisher weights of some halocarbon and water extinguishers.
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Appendix 4 Figure 8. Fire Extinguisher Performance and Gross Weights UL Class A Class A Class B Class B Agent and Extinguishers Weights® Listing Panel Crib Fire Novice Experienced Halon Halon HCFC HFC- HFC- Fire 1211 1301 Blend B 227ea 236fa Water Agent Agent Agent 2-B:C 1.3 lb N/A 2.5 lb Agent 2.5 lb N/A N/A N/A 2 f 5 A? Gross Wt. Gross Wt. 2.75.1b Gross Wt.
2.3 lb 5.3 lb 5.0 lb Agent Agent Agent Agent
2.5 lb Agent 5.5 lb 5.75 lb 4.75 lb 5-B:C N/A N/A 5 ft 12.5 f Gross Wt. 2.5 lb 3.7 1b* Gross Wt. 9.3 1b Gross Wt. Gross Wt. 9.12 lb 9.5 lb N/A
(72) Agent 1-A: 8 ft x 12 layers 5 f? 12.5 fl 3.5 lb N/A N/A N/A N/A N/A 5-B:C 8 ft 6-2x2x20 Gross Wt.
in. 4.4 lb
(72) Agent Agent Agent 1-A: 8 ft x 12 layers 9 lb 11 b 9.5 lb.
10-B:C 8 ft 6-2x2x20 10 f2 25 f2 Gross Wt. N/A Gross Wt. N/A Gross Wt. N/A in. 15.7 lb 22 lb 21.81 1b
(112) Agent 10 ft x 16 layers 22 lb 10 ft 7-2x2x25 NA N/A N/A N/A N/A N/A (2.5gal) 2A in. Gross Wt.
28 lb
(112) Agent Agent 2-A: 10 ft x 16 layers 10 f? 25 ti N/A N/A 15.5 lb N/A 13.3 lb. N/A 10-B:C 10 ft 7-2x2x25 Gross Wt. Gross Wt.
in. 27 1b 25.6 lb
(112) Agent 2A-40 10 ft x 16 layers 40 fi 100 fl 13 lb N/A N/A N/A N/A N/A B:C 10 ft 7-2x2x25 Gross Wt.
in. 20 16 Weights are extinguisher dependent. Extinguishing effectiveness is determined by test.
Optimization of hardware may result in future listed units with lower gross weights and/or smaller dimensions.
b Halon 1211 is no longer in production. However, Halon 1211 extinguishers are still in production using recycled agent.
Aircraft Volumes and Ventilation. Figure 9 below provides general information on various size aircraft, i.e. number of seats, volumes and ventilation. Only use this table as general guidance. The accuracy of this data has not been verified. Check aircraft manual for accurate guidance for your aircraft. The information in this table is taken in part from: Hocking. M.B.
(1998). Indoor Air Quality: Recommendations Relevant to Aircraft Passenger Cabins. American Industrial Hygiene Association Journal. 59:446-454.
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Appendix 4 Figure 9. Aircraft Volumes and Ventilation Air Change Transport Category Aircraft Per Hour Air Cabin Minimum Change, Number Volume, Reported Minutes of Seats ft' (m') Airbus A300-600 36.7 1.6 266 10135(287) Airbus A310 36.7 1.6 220 8617(244) Airbus A318 35.3 1.7 107 3637(103) Airbus A319 36.2 1.7 124 4238(120) Airbus A320 36.7 1.6 150 4909(139) Airbus A321 40.3 1.5 185 5474(155) Airbus A330-200 31.3 1.9 253 12184(345) Airbus A340-200 31.3 1.9 261 12184(345) Airbus A340-600 35.0 1.7 380 15892(450) Airbus A380-800 34.0 1.8 525 38917(1102) Boeing 727-100 22.9 2.62 5333(151) Boeing 727-200 18.8 3.19 5827(165) Boeing 737-100 26.1 2.30 4238(120) Boeing 737-200 17.7 3.39 4626(131) Boeing 737-300 (42) 14.2 4.23 5262(149) Boeing 747 (26) 14.7 4.08 27899(790) Boeing 757 (48) 15.6 3.85 9747(276) Boeing 767-200 (52) 10.3 5.83 11265(319) Boeing 767-300 (-) 11.1 5.41 15115(428) Lockheed L1011-1/100 17.8 3.37 18964(537) Lockheed L1011-50 19.3 3.11 17445(494) McDonald Douglas DC9-30 27.3 2.20 4379(124) McDonald Douglas DC9-50 18.8 3.19 5227(148) McDonald Douglas DC9-80/MD80 (22) 19.7 3.05 6109(173) McDonald Douglas DC10-10 22.8 2.63 Donald Douglas DC10-40 (35) 14.9 4.03 14797(419) Smaller Commercial Aircraft Bombardier CRJ200 50 2015(57.1) Bombardier CRJ700 19.5 3.1 73 2682(76.0) Bombardier CRJ900 17.3 3.5 94 3228(91.0) Bombardier DASH-S, Q100 & Q200 37 1328(37.6) Bombardier DASH-8, Q400 70-80 2740(77.7) Embraer Brasilia EMB-120 3.8 15.9 30 968(27.4) Embraer ERJ-135 11.1 5.4 37 1650(46.7) Embraer ERJ-145 5.7 10.5 50 1872(53.1) Embraer ERJ-170 11.6 5.2 86 2315(65.6) Embraer ERJ-190 10.7 5.6 124 3203(90.7) A4-6
01/14/11/ AC 20-42D Appendix 4 Air Change Per Hour Air Cabin Minimum Change, Number Volume, Reported Minutes of Seats it' (m') Fairchild Dornier 328 32 1183(33.5) Saab 340A & 340B 33 1180(33.5) Saab 2000 50 1860(52.7) Rotorcraft Sikorsky S76 7-14 204(5.8) Sikorsky S92 12-24 700(19.8) Bell 206B3 5-7 40(1.1) Bell 407 7 85(2.4) Bell 412 8-15 220(6.2) Bell 430 224(6.4) Small Aircraft Bombardier Challenger 300 19.2 3.1 14 850(24.0) Bombardier Challenger 605 19.0 3.3 14 1150(33.0) Cessna Caravan II 6-8 152(4.3) Cessna Caravan 675 6-8 254(7.2) Cessna Caravan Amphibian 6-8 254(7.2) Cessna Grand Caravan 6-12 340(9.6) Cessna Citation CJ1 2.8 31.3 4-7 300(8.5) Cessna Citation CJ2 3.3 18.3 6-9 350(9.9) Cessna Citation X 1.7 35.1 10 593(17) Cessna Corsair, Conquest I 6-8 193(5.5) Cessna 152 2 77(2.2) Cessna 210C 6 140(3.9) Cessna 414 6-8 226(6.4) Cessna 421B 1.8 33,2 6-8 217(6.2) Dassault Falcon 7X 10.8 5.5 12 1836(52.0) Dassault Falcon 50EX 8.9 6.7 1059(30.0) Dassault Falcon 900EX 9.1 6.6 10 1695(48.0) Small Aireraft Dassault Falcon 2000EX 10.5 5.7 8 1483(42) Embrear Legacy 600 24.0 2.5 13 1650(47.0) Embrear Phenom 100 28.7 2.09 4 300(8.5) Embrear Phenom 300 29.0 2.1 7 357(10.1) Gulfstream Turbo Commander 6 184(5.2) Gulfstream Jetprop 184(5.2) Gulfstream G100 367(10.4) A4-7
Appendix 4 Air Change Per Hour Air Cabin Minimum Change, Number Volume, Reported Minutes of Seats ít' (m') Gulfstream G150 6-8 465(13.2) Gulfstream G200 6-8 868(24.6) Gulfstream G350/450 12-16 1,525(43.2) Gulfstream G550 14-18 1669(47.3) Gulfstream G650 11-18 2138(60.5) LearJet 31A 35.0 1.7 10 271(7.7) LearJet 40 36.0 1.7 6-9 363(10.3) LearJet 45/45XR 6-8 410(11.6) LearJet 60/60XR 26.0 2.3 6-8 453(12.8) Pilatus PC12 330(9.4) Piper PA31T Cheyenne 151(4.3) Raytheon Beechcraft King Air B200 32.0 1.9 7-9 393(11.1)" Raytheon Beechcraft King Air B300/350 28.0 2.1 9-11 443(12.5)" Raytheon Beechjet 400/Hawker 400XP 8 305(8.6)" Raytheon Premier 1 27.0 2.2 6-8 400(11.3)" Rockwell Gulfstream Commander GC-1000 249(7.1) Socata TBM-700 estimated by Pilatus 155(4.4) Sino Swearingen SJ30-2 190(5.4) VisionAire Vantage 310(8.8) a Includes lavatory and internal baggage compartment.
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