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Standard

Introduction to Oxygen Equipment for Aircraft

2013-06-14
WIP
AIR825/1A
The purpose of this document is to give the reader an overview of the document package which makes up AIR825, Introduction to Oxygen Equipment for Aircraft, and a basic overview (see Section 4) of the operational concerns driven by human physiology during altitude exposure.
Standard

Guide for Evaluating Combustion Hazards in Aircraft Oxygen Systems

2014-01-29
WIP
AIR825/13A
This guide is intended to promote safe designs, operations and maintenance on aircraft and ground support oxygen systems. This is also a summary of some work by the ASTM G 4 Committee related to oxygen fire investigations and design concerns to reduce the risk of an oxygen fire. There have been many recent technological advances and additional test data is available for evaluating and controlling combustion hazards in oxygen equipment. Standards that use this new information are rapidly evolving. A guide is needed to assist organizations and persons not completely familiar with this process to provide oxygen systems with minimum risks of combustion. This guide does not necessarily address all the detailed issues and provide all data that will be needed. For a complete analysis, supplemental publications need to be consulted. This guide does discuss the basics of oxygen systems fire hazards. The hazard analysis process is discussed and a simple example to explain this process.
Standard

Guide for Evaluating Combustion Hazards in Aircraft Oxygen Systems

2003-01-11
CURRENT
AIR825/13
This guide is intended to promote safe designs, operations and maintenance on aircraft and ground support oxygen systems. This is also a summary of some work by the ASTM G 4 Committee related to oxygen fire investigations and design concerns to reduce the risk of an oxygen fire. There have been many recent technological advances and additional test data is available for evaluating and controlling combustion hazards in oxygen equipment. Standards that use this new information are rapidly evolving. A guide is needed to assist organizations and persons not completely familiar with this process to provide oxygen systems with minimum risks of combustion. This guide does not necessarily address all the detailed issues and provide all data that will be needed. For a complete analysis, supplemental publications need to be consulted. This guide does discuss the basics of oxygen systems fire hazards. The hazard analysis process is discussed and a simple example to explain this process.
Standard

Liquid Oxygen Systems

2014-10-21
WIP
AIR825/5B
This Aerospace Information Report provides general information to aircraft designers and engineers, regarding LOX, its properties, its storage and its conversion to gas. Much useful information is included herein for aircraft designers regarding important design considerations for a safe and effective installation to an aircraft. The associated ground support equipment needed to support operations of LOX equipped aircraft is also discussed. It is important to realize that LOX equipped aircraft cannot be supported unless this support infrastructure is also available. A significant part of this document will address the specific advantages, disadvantages and precautions relating to LOX systems. These are important issues that must be considered in deciding which oxygen system to install to the aircraft. Also, many commercial and military aircraft use aeromedical LOX equipment that is mostly portable equipment.
Standard

Reducers, Oxygen Pressure

1999-07-01
HISTORICAL
AS17852
This specification covers the requirements for two types of oxygen pressure reducers.
Standard

Reducers, Oxygen Pressure

2012-07-24
CURRENT
AS17852A
This specification covers the requirements for two types of oxygen pressure reducers.
Standard

Aircraft Oxygen Replenishment Coupling for Civil Transport Aircraft (Design Standard)

2005-02-14
CURRENT
AS1219A
This SAE Aerospace Design Standard defines a coupling, which is installed in a high pressure (1850 to 2000 psig) oxygen system of a civil transport aircraft for the purpose of mating to ground oxygen replenishment facilities. Dimensions developed from AND10089, Detail Specification Sheet for Fitting End, Design Standard, For Cone Connection.
Standard

Aircraft Oxygen Replenishment Coupling for Civil Transport Aircraft (Design Standard)

1973-04-01
HISTORICAL
AS1219
This Aerospace Design Standard defines a coupling which is installed in an aircraft high pressure (1850 - 2000 psig) oxygen system of a civil transport aircraft for the purpose of mating with ground oxygen replenishment facilities. All dimensions above are reference only - See AND10089-3 for detail dimensions.
Standard

Oxygen Cylinder Installation Guide

2016-03-09
WIP
ARP5021B
This document provides guidance for oxygen cylinder installation on commercial aircraft based on rules and methods practiced in aerospace industry and applicable in other associations. It covers considerations for oxygen systems from beginning of project phase up to production, maintenance, and servicing. The document is focused on requirements regarding DOT approved oxygen cylinders. However, its basic rules may also be applicable to new development pertaining to use of such equipment in an oxygen environment. For information regarding oxygen cylinders itself, reference should be made to AIR825/12 also.
Standard

MINIMUM STANDARD FOR PORTABLE GASEOUS, OXYGEN EQUIPMENT

1976-02-01
HISTORICAL
AS1046A
This standard is intended to apply to that portable compressed gaseous oxygen equipment used for the administration of supplementary and/or first aid oxygen to one or more occupants of either private or commercial transport aircraft.
Standard

Minimum Standard for Portable Gaseous, Oxygen Equipment

2006-12-05
CURRENT
AS1046C
This standard is intended to apply to portable compressed gaseous oxygen equipment. When properly configured, this equipment is used either for the administration of supplemental oxygen, first aid oxygen or smoke protection to one or more occupants of either private or commercial transport aircraft. This standard is applicable to the following types of portable oxygen equipment: a Continuous flow 1 Pre-set 2 Adjustable 3 Automatic b Demand flow 1 Straight-demand 2 Diluter-demand 3 Pressure-demand c Combination continuous flow and demand flow.
Standard

Minimum Standard for Portable Gaseous, Oxygen Equipment

2000-03-01
HISTORICAL
AS1046B
This standard is intended to apply to that portable compressed gaseous oxygen equipment used for the administration of supplementary and/or first aid oxygen to one or more occupants of either private or commercial transport aircraft. This standard is applicable to the following types of portable oxygen equipment: a Continuous flow; b Demand flow; 1 Straight demand 2 Diluter demand 3 Pressure demand c Combination continuous flow and demand flow.
Standard

Oxygen System and Component Cleaning

2017-12-01
WIP
ARP1176B
This SAE Aerospace Recommended Practice (ARP) provides recommended practices for cleaning aircraft oxygen equipment such as tubing, pieces, parts (including regulator and valve parts), cylinders and ground-based equipment that may be used to support aircraft oxygen systems. This revision introduces a cleanliness coding scheme that can be referenced as a requirement, and/or referenced to identify compliance to meeting such a requirement. These methods may apply to gaseous and liquid oxygen equipment. This document specifies work area details, methods to select suitable cleaning agents, cleaning methods, test methods to verify cleanliness level, and methods of packaging the components and parts after cleaning. Technicians designated to clean oxygen equipment must be qualified and trained to clean oxygen equipment. This ARP is applicable to metallic and non-metallic parts.
Standard

Continuous Flow Oxygen Regulator

2018-06-13
WIP
AS1197B
This standard covers regulators of the following types: Type I - Automatic Continuous Flow Type II - Adjustable Continuous Flow Type III - Pre-set Continuous Flow Class A - Cylinder Mounted Class B - Line Mounted Special - Composite Continuous Flow (Appendix)
Standard

MINIMUM STANDARDS FOR VALVE, HIGH PRESSURE OXYGEN, LINE SHUT OFF, MANUALLY OPERATED

1971-07-01
HISTORICAL
AS1214
This standard covers all types of manually operated high pressure oxygen line shut off valves utilizing either metallic or nonmetallic valve seats for use in general and commercial type aircraft. It is intended that the line valve should be installed in a position accessible in flight, when the cylinder mounted oxygen valves are not. The line shutoff valve may also be used optionally in large systems as a maintenance aid where only a portion of the system need be opened up and purged after repair or replacement of one or more parts.
Standard

Continuous Flow Oxygen Regulator

1998-12-01
CURRENT
AS1197A
This standard covers regulators of the following types: Type I - Automatic Continuous Flow Type II - Adjustable Continuous Flow Type III - Pre-set Continuous Flow Class A - Cylinder Mounted Class B - Line Mounted Special - Composite Continuous Flow (Appendix)
Standard

Minimum Standards for Valve, High Pressure Oxygen, Line Shut Off, Manually Operated

1996-07-01
HISTORICAL
AS1214A
This standard covers all types of manually operated high pressure oxygen line shut off valves utilizing either metallic or nonmetallic valve seats for use in general and commercial type aircraft. It is intended that the line valve should be installed in a position accessible in flight, when the cylinder mounted oxygen valves are not. The line shutoff valve may also be used optionally in large systems as a maintenance aid where only a portion of the system need be opened up and purged after repair or replacement of one or more parts.
Standard

Oxygen System Fill/Check Valve

1997-12-01
CURRENT
AS1225A
This SAE Aerospace Standard (AS) defines minimum standards of design, construction, and performance for two types of permanently installed, high pressure 12,800 kPa (1850 psig) and 13,800 kPa (2000 psig) oxygen system cylinder fill valves used in commercial aircraft. Refer to Purchaser's Specification for Requirements which are beyond the scope or level of detail provided in this document. One valve has an adjustable pressure sensitive closing valve to automatically control the final pressure for a correct amount of oxygen in the system. The second valve incorporates an automatic shutoff feature designed to limit system overpressurization in the event maintenance personnel do not stop system filling at the correct pressure. The intent of the fill valves is to control the rate of fill to limit the rise in temperature caused by compression heating to acceptable values, prevent oxygen back flow and prevent the ingestion of foreign matter that could cause contamination of the system.
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