This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
On-Board Oxygen Generating Systems (Molecular Sieve)
- Aerospace Standard
- AIR825/6A
- Reaffirmed
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
The information provided in AIR825/6 applies to On Board Oxygen Generating Systems (OBOGS) - Molecular Sieve, that utilize the ability of molecular sieve materials by using Pressure Swing Adsorption Process (PSA) to separate and concentrate oxygen in the product gas from the surrounding air, respectively air provided by any compressor or by the aircraft engine (so called: Bleed Air), and to provide this oxygen enriched air or product gas as supplemental oxygen for breathing gas supply of crew and passengers onboard aircraft. The distribution system and the provided oxygen concentration have to fulfill the respective airworthiness regulations.
Equipment using this technology is to provide supplemental oxygen for breathing gas supply of crew and passengers onboard aircraft, the suitable breathing gas oxygen partial pressure or oxygen concentration requirements are specified in AIR825/2 and the oxygen purity requirements in AS8010.
NOTE: OBOGS has never been certified for commercial aircraft. The 14 CFR/CS 25 as well as 14 CFR 121/Commission Regulation (EU) N° 965/2012, amended need to be reviewed and if necessary amended prior to introduction of OBOGS. Alternatively, such certification will likely incorporate various special conditions that address differences in performance between OBOGS and conventional systems.
These systems are intended for:
-
a
The on-line breathing gas supply to directly account for the normal oxygen usage of crew and passengers in terms of:
-
1
Supplemental oxygen for part or all of an emergency descent
-
2
Supplemental oxygen for first aid
-
3
Therapeutic oxygen
-
1
-
b
The replenishment of the aircraft gaseous oxygen system storage cylinders to account for the normal oxygen usage of crew and passengers and system leakage
-
c
A combination of the above.
The possible applicability and benefit of incorporation of OBOGS-Molecular Sieve into non-military aircraft is being considered by the representatives of Civil Aviation. The intended aim of AIR825/6 is to provide a fundamental description of the function of existing OBOGS-Molecular-Sieve systems with a related reference to the type of oxygen standards which would merit a review.
Rationale
The revision of this SAE Aerospace Information Report, which is intended to provide comprehensive reference and background information pertaining to molecular sieve on-board oxygen generating systems as part of an overall document set to address oxygen equipment for aircraft, some of the background and safety and reliability and physical effects will be reviewed and adapted to the latest knowledge and applications.
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 |
Issuing Committee
A-10 Aircraft Oxygen Equipment Committee
Welcome to the SAE A-10 Aircraft Oxygen Equipment Committee public forum area.
The SAE A-10 Aircraft Oxygen Equipment Committee develops standards and practices in the design and information compiled from users, equipment suppliers, aircraft manufacturers, regulatory agencies and medical groups in the aeronautical oxygen field. The A-10 Committee also promotes safety in the aviation oxygen field. It defines the needs and encourages research needed in the area of aviation physiology, as it relates to respiratory functions and oxygen equipment performance.Reference
| Number | Title |
|---|---|
| AIR825 | Oxygen Equipment for Aircraft |
| AS8010 | Aviator's Breathing Oxygen Purity Standard |
| AS8025 | Passenger Oxygen Mask |
| STANAG3865 | This document is not part of the subscrption. |
* Redlines comparisons are available for those standards
listed in the Revision History that contain a radio button. A
redline comparison of the current version against a revision is
accomplished by selecting the radio button next to the standard and
then selecting 'compare'. At this time, Redline versions only exist
for some AMS standards. SAE will continue to add redline versioning
with ongoing updates to SAE MOBILUS.