| Title | Comparison of Portable Crewmember Protective Breathing Equipment (CPBE) Designs |
|---|---|
| Record ID | 39573 |
| Personal Name Creator |
Wilcox, Bruce; McLean, Garnet; England, Harvey |
| Corporate Creator | United States. Office of Aviation Medicine |
| Publisher | Civil Aerospace Medical Institute |
| Publication Date | 19930400 |
| Language | English |
| Abstract | CPBE presently certified for transport category aircraft employ 3 types of oxygen production systems: chlorate candle, potassium superoxide, and compressed oxygen. CPBE performance was evaluated to expose significant differences based on this distinction. CPBE tests employing humans were conducted in accordance with FAA Technical Standard Order C-116. All CPBE were tested for oxygen production, carbon dioxide concentration, internal temperature, moisture, and breathing resistance for 15 minutes at ground level (1,300 ft) and cabin altitude (8,000 ft), while subjects exercised. All CPBE produced a mean oxygen level of at least 59% and maintained carbon dioxide level below 5% at ground level. Differences in internal temperature and humidity were found. Performance at altitude generally paralleled these findings. Oxygen and carbon dioxide levels provide little discrimination about the relative merits of particular CPBE. However, differences in the wearability of CPBE, based on internal temperature, humidity, and weight, were dependent on the type of CPBE oxygen production system. |
| Rosap ID | dot:21351 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/21351 |
| TRT Terms | Flight crews; Oxygen equipment; Breathing apparatus; Performance tests; Human subject testing; Altitude; Temperature; Humidity; Oxygen; Carbon dioxide |
| General Subjects | Flight crews; Breathing apparatus; Airplanes--Oxygen equipment--Testing; Altitudes; Temperature; Humidity; Oxygen; Carbon dioxide |
| Classification | NTL - AVIATION - Aviation Safety/Airworthiness; NTL - SAFETY AND SECURITY - Aviation Safety/Airworthiness |
| Geographical Coverage |
United States |
| Report Number | DOT/FAA/AM-93/6 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/39000/39500/39573/AM93-06.PDF |
| Format | |
| Database | NTL Digital Repository |