1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2016 SAE International All rights reserved. No part of this p
3、ublication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS8026A AEROSPACE STANDARD AS8026 REV. A Issued 1987-05 Revised 1996-07Reaffirmed
5、 2016-06 Crewmember Demand Oxygen Mask For Transport Category Aircraft RATIONALE AS8026A has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE:This standard covers oxygen masks and breathing valves used with both panel mounted and mask mounted demand and pressure-demand oxygen
6、 regulators. Mask mounted oxygen regulators are covered under other standards, but when the mask mounted regulator incorporates an integral exhalation valve, the performance of this valve shall meet the requirements of this standard.1.1 Purpose:This standard establishes the minimum performance stand
7、ards for the manufacture of demand type crewmember oxygen masks to be used with straight demand, diluter-demand and pressure-demand oxygen systems.2. REFERENCES:The following documents provide reference and background information related to this Aerospace Standard:2.1 SAE Documents:Available from SA
8、E, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AS8031 Personal Protective Devices for Toxic and Irritating Atmospheres, Air Transport AircraftAIR825B Oxygen Equipment for AircraftAS1194 Regulator, Oxygen, Diluter Demand, Automatic Pressure BreathingAS1046 Minimum Standard for Portable Gaseous
9、Oxygen EquipmentAIR1176 Oxygen Systems and Components, Cleaning & PackagingAS8027 Crewmember Oxygen Regulators, DemandSAE INTERNATIONAL AS8026A Page 2 of 12 2.2 Other Publications:FAA TSO C78 Crew Member Demand Oxygen MasksFAA TSO C89 Oxygen Regulators, DemandFAA TSO C99 Smoke Protective EquipmentFA
10、A TSO C58 MicrophonesFAR Part 25 Airworthiness Standards, Transport Category AircraftFAR Part 91 General Operating Flight RulesFAA AM-78-41 FAA Report, Optical Properties of Smoke Protective DevicesASTM Documents As listed in paragraph 3.1.1, belowAn Anthropometric Sizing Program for Oral Nasal Oxyg
11、en Masks Based on 1967 US Air Force Survey Data, AMRL Technical Report 75-51, J. T. McConville and Milt Alexander.Anthropometric Sizing and Fit-Test of MC-1 Oral-Nasal Oxygen Mask, WADC Technical Report 58-505, March 1959, Emanual, M. Alexander and E. Churchill.Anthropometry of Air Force Women, AMRL
12、 Technical Report 70-5, April 1972, C. D. Clauser, et al.Recommended Subject Selection and Test Procedure for Quantitative Respirator Testing, J. T. McConville, E. Churchill and A. Hack, HEW Contract HSM-99-75-15, November 30, 1973.Anthropometry for Respirator Sizing, J. T. McConville, E. Churchill
13、and L. L. Lauback, HEW Contract HSM-099-71-11, April 30, 1972.2.3 Definition:The oxygen masks to be used for transport aircraft shall be of the oronasal type covering the mouth and nose, or a full face type which includes coverage of the eyes as well as the mouth and nose.2.4 Classification:This sta
14、ndard covers, but is not limited to the following types of oxygen masks:Type I - Quick donning mask with integral breathing valve(s),Type II - Quick donning mask without integral breathing valve(s),Type III - Non-Quick donning mask with integral breathing valve(s),Type IV - Non-Quick donning mask wi
15、thout integral breathing valve(s),Type V - Other.SAE INTERNATIONAL AS8026A Page 3 of 12 3. GENERAL REQUIREMENTS:3.1 Materials:3.1.1 General: Materials shall be of a type, grade and quality which experience and/or tests have shown to be suitable for the purpose intended. Materials which contaminate o
16、xygen or are adversely affected by continuous service with oxygen shall not be used. The following are suggested test methods which may be used to verify compliance with materials requirements established in a design specification.a. Resistance to FlammabilityFAR 25.853 (b-3)U.L. 94 Tests for Flamma
17、bility of Plastic Materials for Parts in Devices and Appliances (Self Extinguishing).Any further testing would be performed on assembled devices.b. Resistance to Ozone DegradationASTM D 1149-86, “Rubber, Deterioration-Surface Ozone Cracking in a Chamber“.MIL-STD-417, “Rubber Composition, Vulcanized
18、General Purpose, Solid“.c. Resistance to Ultra Violet DegradationASTM D 750-85, “Rubber Deterioration in Carbon-Arc Weathering Apparatus“.d. Resistance to Wear and Tear (Abrasion)ASTM D 2228-83, “Rubber Property-Abrasion Resistance (Pico Abrader)“.e. Oxygen CompatibilityManufacturers data on raw mat
19、erials or on finished products, ASTM D 572-81, “Rubber-Deterioration by Heat & Oxygen“ or ASTM D 1171-86, “Rubber Deterioration - Surface Ozone Cracking Outdoors or Chamber (triangular specimens).f. OdorsSniff test by a panel of six different persons.g. Resistance to Deformation while in Stored Cond
20、itionASTM D 1171-86 or D 572-81, as noted in paragraph (e) above.h. Optical Quality and Resistance to Shattering (Lenses)American National Standard (ANSI) Z87.1-1979, “Practice for Occupational and Educational Eye and Face Protection“ and Military Specification MIL-L-38169 (USAF).SAE INTERNATIONAL A
21、S8026A Page 4 of 12 3.1.2 Facepiece: Materials in contact with the skin shall be selected to be as non-irritating, non-allergenic, and as soft and compliant to the facial configuration as possible.3.1.3 Cleaning and Sterilizing: The oxygen mask shall be made of materials which will permit cleaning a
22、nd sterilizing without adverse effects and without major disassembly. The method of cleaning and sterilizing shall be recommended by the manufacturer or in accordance with SAE AIR1176.3.1.4 Elastomeric Components: A tag or leaflet describing service life limits of elastomeric components and a sugges
23、ted method for inspection and detection of any deterioration in these components which may adversely affect the performance of the oxygen mask shall be attached to the mask or included with the packaged mask as delivered to the user. Silicone rubber parts, because they have unlimited shelf life, are
24、 exempt from this requirement.3.1.5 Fungus: Components of the oxygen mask assembly shall be fungus-proofed by selection of parts and materials that are non-nutrient to fungus, or by treating the parts and materials with a biocidal material that is compatible with human wear and activity.3.1.6 Dissim
25、ilar Metals: Unless suitably protected against electrolytic corrosion, dissimilar metals shall not be used in contact with each other.3.2 Workmanship:3.2.1 General: The oxygen mask shall be fabricated and finished in accordance with the highest grade practice in the manufacture of this type of life
26、saving equipment. The finished mask and all internal parts shall be clean throughout and free of fins, burrs, scale, oils, foreign materials or other conditions which might adversely affect the safe operation of the mask. All components shall be resistant to snags, breaks, tears and other harmful ac
27、tions which could lead to malfunction of the mask in the course of normal handling and use during its service life.3.2.2 Finish: All materials which are not inherently corrosion resistant shall be finished with a protective treatment or coating to minimize the effect of exposure to environmental con
28、ditions which may be encountered in the service for which the oxygen mask is intended. The protective treatment or coating shall not chip, flake, powder or otherwise contaminate the mask.SAE INTERNATIONAL AS8026A Page 5 of 12 3.3 Identification:3.3.1 Required: The following minimum information shall
29、 be permanently marked in a readily visible location on the oxygen mask assembly:Part NameManufacturers Part NumberManufacturers Name and AddressElastomer Cure Date (Except Silicone Rubber)Size (If more than one size is offered)Type (See paragraph 2.4)Maximum Altitude to Which QualifiedGovernment Ag
30、ency Approvals3.3.2 Optional: The following additional information may appear on the oxygen mask identification label at the option of the manufacturer and or the purchaser:Airframe Manufacturers ApprovalsAirline or other users Part NumberInstructions for use or Warning Labels3.4 Facepiece Assembly:
31、3.4.1 Sizing Criteria: The professional flying population - male and female - presents a very wide range of facial type and sizes, thus the intended user of an oxygen mask must personally assure that a good fit can be achieved using the standard mask provided by the airplane operator. Aircraft opera
32、tors should provide oxygen masks which offer an adequate fit and protective level to the widest possible range of their aircrewmembers. An individually fitted mask should be furnished when an aircrewmember cannot be fitted by the standard masks regularly supplied.Manufacturers are encouraged to prov
33、ide masks of universal size whenever feasible. When multiple sizes are required to fit the full range of anticipated users, the mask assembly is to be clearly marked or identified as to its size or intended user type.Facepiece designers should consider extremes of Naison-Menton, Bizygomatic, Bigonia
34、l and Naison-Supramentale measurements and other applicable anthropometric information as required to provide a product with adequate fit. Suggested sources of anthropometric data are listed in Section 2.3.4.2 Fit: The oxygen mask facepiece shall be of sufficient resilience, size and shape as to con
35、form readily to clean shaven facial contours using no more pressure than is supplied by the mask suspension device. In determining that a mask provides an acceptable fit under this Aerospace Standard, a mask need not demonstrate compliance with paragraph 4.1.1 - Mask Leakage, on test subjects with b
36、eards, heavy facial hair or deep wrinkles. Published studies have shown that all known masks will leak where beards or heavy facial hair lies between the skin and sealing surface of the mask, or where deep wrinkling prevents a seal.SAE INTERNATIONAL AS8026A Page 6 of 12 3.5 Suspension:The oxygen mas
37、k facepiece of Type I and Type II masks shall be attached to a suspension device which will permit the mask assembly to be donned using only one hand and operating in 5 seconds or less, without disturbing eyeglasses. After donning, the mask must not prevent immediate communication between crewmember
38、s of the airplane intercommunications system.The suspension device attached to Type III and Type IV oxygen mask assemblies may be of a design as to require use of two hands and/or more than 5 seconds to don.3.6 Compatibility with Eyeglasses and Smoke Goggles:All types of oxygen masks - quick donning
39、 or non-quick donning oronasal masks, oronasal masks with integral goggles, or full-face type masks - shall be designed so that it is possible to don and wear the mask while wearing corrective eyeglasses. Quick donning Type I and Type II masks and their suspension devices shall be designed to meet t
40、he one-hand, 5-second donning requirement of paragraph 3.5 when donning over eyeglasses. Oronasal type masks shall be designed to permit the wearing of smoke goggles with the mask and over eyeglasses. For purposes of demonstrating compliance with this paragraph, eyeglasses must be a minimum of 152 m
41、m (6 inches) wide by 51 mm (2 inches) high.3.7 Lenses in Full Face Masks and/or Integral Goggles:The lens or lenses used in full face masks or goggles integrally attached to oronasal masks shall be free from defects or flaws that impair optical quality. The lens(es) shall be demonstrated to show com
42、pliance with the following:3.7.1 Range of Vision: The lens(es) shall permit peripheral vision in the horizontal meridian of at least 120 degrees (60 degrees on each side of the center point) and in the vertical meridian of at least 60 degrees (40 degrees above and 20 degrees below the center point)
43、when evaluated by standard arc perimeter techniques.3.7.2 Fogging: Lens(es) of all full face masks or smoke goggles integrally attached to oronasal masks shall be designed to minimize moisture condensation on the inside surface or shall include a means for removing any moisture that may condense on
44、surfaces essential to vision.3.7.3 Optical Quality: Light transmission, refractive deviation, optical haze and distortion shall be tested in accordance with and meet the requirements of ANSI Standard Z87.1-1979, as described in FAA Report FAA-AM-78-41.3.8 Frost:The oxygen mask shall be designed to p
45、revent the formation or accumulation of frost which would interfere with the function of the inhalation or exhalation valves, unless it can be demonstrated that the wearer can remove frost by external manipulation without removing the mask.SAE INTERNATIONAL AS8026A Page 7 of 12 3.9 Oxygen Supply Tub
46、e:Oxygen mask assemblies designed for use with remotely located oxygen flow regulators shall include a flexible, kink resistant oxygen supply tube.3.10 Oxygen Supply Tube Connector:Oxygen masks equipped with oxygen supply tubes designed for quick disconnection from the oxygen supply regulator shall
47、incorporate a device to alert the user when his oxygen supply tube has been disconnected. When disconnected the device shall permit inhalation, but a noticeable resistance shall be introduced to indicate that disconnection has occurred. This paragraph does not apply if the quick disconnect device in
48、corporates means to positively prevent inadvertent separation.3.11 Accumulation of Expired Gasses:Oxygen masks shall be designed to have the minimum practical internal volume to prevent the accumulation of more than 200 milliliters of expiratory gases within the facepiece chamber.3.12 Communications
49、:Oxygen mask design shall permit the installation of a microphone and connecting communications cable. When microphones are furnished with the masks, these must conform to FAA TSO C58, or an FAA approved equivalent.4. PERFORMANCE REQUIREMENTS:4.1 Leakage:4.1.1 Seal to the Face: The seal between the mask facepiece and the skin of the face, or of a suitable head/face form simulating a human face, shall be such that:a. The inboard leaka
