Evaluation of the Scott Aviation Portable Protective Breathing Device for Contaminant Leakage as Prescribed by FAA Action Notice A-8150.2

Higgins, E.A.; McLean, G.A.; Lyne, P.J.; Funkhouser, G.E.; Young, J.W.; Civil Aeromedical Institute

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Evaluation of the Scott Aviation Portable Protective Breathing Device for Contaminant Leakage as Prescribed by FAA Action Notice A-8150.2

1989-11-01
By Higgins, E.A. ; McLean, G.A. ; Lyne, P.J. ; ...

[PDF-649.65 KB]

English

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Creators:

Higgins, E.A. ; McLean, G.A. ; Lyne, P.J. ; Funkhouser, G.E. ; Young, J.W.

Higgins, E.A. ; McLean, G.A. ; Lyne, P.J. ; Funkhouser, G.E. ; Young, J.W. Less -
Corporate Creators:

Civil Aeromedical Institute
Corporate Contributors:

United States. Office of Aviation Medicine
Subject/TRT Terms:

[+]

Airplanes--Oxygen Equipment--Testing Altitude Altitudes Breathing Apparatus Carbon Dioxide Gas Leakage Leak Tests Oxygen Oxygen Equipment Performance--Testing Performance Tests
Publication/ Report Number:

DOT/FAA/AM-89/10
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

Civil Aerospace Medical Institute
Abstract:

Two types of crewmember protective breathing equipment (PBE) were performance tested for compliance with Action Notice A-8150.2 at ground level (- 1,300 feet) and 8,000 feet altitude. PBE 1 was a 'hood with oral-nasal mask,' which used potassium superoxide to remove carbon dioxide and produce its oxygen supply. PBE 2 was a 'hood only,' which contained lithium hydroxide to absorb carbon dioxide and compressed oxygen cylinders to supply breathable air.

The parameters tested were PBE oxygen and carbon dioxide levels, temperature, and breathing resistance-pressure. Five units of each PBE type were subjected to testing; for within-PBE comparisons each type of unit was worn by the same human subjects at both altitudes. Relatively little difference in PBE performance was obtained at the different altitudes for both types of PBE. Oxygen partial pressures were somewhat reduced at the higher altitude for both types of PBE, carbon dioxide partial pressure was slightly greater at ground level for PBE 2, internal temperature was higher for PBE performed adequately for the intended purpose at either altitude , but further testing would be necessary to certify PBE to meet additional requirements, such as use at altitudes above 8,000 feet.
Format:

PDF
Collection(s):

FAA Civil Aerospace Medical Institute US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:1ea7cf180202aebb6523b512cc395704ef31f98902f7752cecd875cca2656280
Download URL:

https://rosap.ntl.bts.gov/view/dot/21324/dot_21324_DS1.pdf
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Evaluation of the Scott Aviation Portable Protective Breathing Device for Contaminant Leakage as Prescribed by FAA Action Notice A-8150.2

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