SAE-AIR-825-1-2001.pdf
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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 therefr
2、om, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2001 Society of Automotive Engineers, Inc. All rights reserved.Printed in U
3、.S.A. TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790 SAE WEB ADDRESS: http:/www.sae.org 400 Commonwealth Drive, Warrendale, PA 15096-0001 AEROSPACE INFORMATION REPORT AIR825/1 Issued2001-12 Introduction to Oxygen Equipment for Aircraft FOREWORD This is the first document of a set of f
4、ourteen related documents. The fourteen documents are needed to comprehensively address the “Introduction to Oxygen Equipment for Aircraft”, and are defined as slash documents versus chapters. This way, the documents may be obtained as a set or individually. This set of slash documents replaces a si
5、ngle document written by one author. As the field of oxygen systems for aircraft has evolved, it became impractical for one author to cover the full range of subject matter. Each of these slash documents was drafted by individuals who are specialists in oxygen systems for aircraft. The reader who is
6、 seeking overall familiarity with oxygen systems for aircraft should read all fourteen slash documents which, together, form a general reference to oxygen systems. The reader who is familiar with oxygen systems for aircraft may want to obtain only the slash documents that pertain to topics that are
7、of specific interest. The fourteen-document set is written at an introductory level, suitable for anyone who would like to understand the basics of oxygen systems in aircraft, and specifically for the engineer who has just recently been assigned to aircraft oxygen systems. Many of these documents wi
8、ll point the reader toward more detailed treatments, located in other SAE documents. The SAE Aerospace Division has three major types of documents: Listed below are the document acronyms with their expanded definitions that the reader will find referred to throughout the slash documents. a.AIR - Aer
9、ospace Information Report: The Aerospace Information Report contains information pertaining to the state of the art in a technical subject for the reader regarding some aspect of Aerospace Technology. The information may suggest how something could be done but nothing requires the user to follow the
10、 suggestion. b.ARP - Aerospace Recommended Practice: The Aerospace Recommended Practice contains advice proposing an accepted or preferred way to accomplish some task. The implication here is that, if the reader chooses not to follow the advice, then the reader should understand why the alternate wa
11、y chosen is appropriate. Copyright SAE International Provided by IHS under license with SAELicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/05/2007 01:59:44 MSTNo reproduction or networking permitted without license from IHS -,-,- SAE AIR825/1 - 2 - c.AS - Aerospace Standa
12、rd: The Aerospace Standard establishes requirements relating to the performance of equipment and procedures. Many of these documents have been adopted by the FAA and used as the basis for official rules, procedures, and Technical Standard Orders (TSOs). NOTE: These documents have no official standin
13、g as regulations unless, and to whatever extent, they are adopted as such by a regulatory authority. Copyright SAE International Provided by IHS under license with SAELicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/05/2007 01:59:44 MSTNo reproduction or networking permitt
14、ed without license from IHS -,-,- SAE AIR825/1 - 3 - HISTORY The first known flights where supplemental oxygen was used were balloon flights in France. The type of equipment used was not recorded. By World War I, some military aircraft used mass-produced oxygen systems that included a high-pressure
15、tank and regulator connected to a mask that also had a microphone connection and a flow indicator. Another early use was by Wiley Post, who flew a mission over Mt. Everest in preparation for a climbing assault on the mountain. Posts oxygen system consisted of a cylinder filled with oxygen, a pressur
16、e reducer, and a tube resembling a pipe stem, held in the mouth. The elements of the first system included a supply source, regulation means, and a dispensing unit. Today all oxygen systems components include those same basic elements with added features incorporated into the design. The SAE A-10 Co
17、mmittee has more than fifty documents defining/ describing the range of such equipment, and methods for testing and using it. Copyright SAE International Provided by IHS under license with SAELicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/05/2007 01:59:44 MSTNo reproduct
18、ion or networking permitted without license from IHS -,-,- SAE AIR825/1 - 4 - TABLE OF CONTENTS 1.SCOPE .5 2.REFERENCES .5 2.1Applicable Documents .5 2.1.1 SAE Publications .5 3.BRIEF SUMMARY OF THE SLASH DOCUMENTS.6 3.1AIR825/1, Introduction to Oxygen Equipment for Aircraft6 3.2AIR825/2, Effects of
19、 Acute Altitude Exposure in Humans: Requirement for Physiological Protection.6 3.3AIR825/3, Gaseous Oxygen and Oxygen Equipment, Introductory.6 3.4AIR825/4, Chemical Oxygen Systems.6 3.5AIR825/5, Liquid Oxygen Systems7 3.6AIR825/6, On Board Oxygen Generating Systems (OBOGS) Molecular Sieve 7 3.7AIR8
20、25/7, On Board Oxygen Generating Systems (OBOGS) Other Oxygen Generating Technologies7 3.8AIR825/8, Continuous Flow Oxygen Systems.7 3.9AIR825/9, Demand and Pressure Demand Oxygen Systems.7 3.10 AIR825/10, Protective Breathing Equipment for Flight Deck and Cabin Crew Members 8 3.11 AIR825/11, Closed
21、 Cycle Breathing Apparatus .8 3.12 AIR825/12, Oxygen System Integration and Performance Precautions8 3.13 AIR825/13, Guide for Evaluating Combustion Hazards in Aircraft Oxygen Systems 8 3.14 AIR825/14, Basic System Design Schematics, Charts and Tables .8 4.BASIC ELMENTS OF PHYSIOLOGICAL PROTECTION F
22、ROM HYPOXIA9 4.1Introduction9 4.2Basic Physiology Related to Hypoxia 9 4.3Detrimental Effects of Hypoxia.14 4.4References.17 5.KEY WORDS17 Copyright SAE International Provided by IHS under license with SAELicensee=IHS Employees/1111111001, User=listmgr, listmgr Not for Resale, 03/05/2007 01:59:44 MS
23、TNo reproduction or networking permitted without license from IHS -,-,- SAE AIR825/1 - 5 - 1.SCOPE: 1.1Purpose: 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 Secti
24、on 4) of the operational concerns driven by human physiology during altitude exposure. 2.REFERENCES: 2.1Applicable Documents: The following publications form a part of this document to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other public
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