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29、ail: stds_adminnfpa.org For more information about NFPA, visit the NFPA website at www.nfpa.org. All NFPA codes and standards can be viewed at no cost at www.nfpa.org/freeaccess.53-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association,
30、Quincy, Massachusetts 02169. Copyright 2015 National Fire Protection Association . All Rights Reserved. NFPA 53 Recommended Practice on Materials, Equipment, and Systems Used in Oxygen-Enriched Atmospheres 2016 Edition This edition of NFPA 53, Recommended Practice on Materials, Equipment, and System
31、s Used in Oxygen- Enriched Atmospheres, was prepared by the Committee on Oxygen-Enriched Atmospheres. It was issued by the Standards Council on November 14, 2015, with an effective date of December 4, 2015, and supersedes all previous editions. This edition of NFPA 53 was approved as an American Nat
32、ional Standard on December 4, 2015. Origin and Development of NFPA 53 Development of NFPA 53 was initiated in 1965 largely as a result of interest in the area of oxygen- enriched atmospheres by the aerospace industry and medical personnel/researchers, who expressed a need for a single source of gene
33、ral data on the hazards of oxygen-enriched atmospheres. The rst edition was published in 1969 under NFPA procedures that did not require Association meeting action for NFPA documents. A second edition was formally adopted under NFPA procedures at the NFPA Annual Meeting in 1974. Subsequent editions
34、were adopted in 1979, 1985, 1990, and 1994. The 1994 edition reected a complete review of the contents of the document and incorporated much new information gained by research at the National Aeronautics and Space Administration from 1984 to 1994. The 1999 edition changed the document from a guide t
35、o a recommended practice. Also, some minor changes were made to the denitions of oxygen-enriched atmosphere and ignition temperature. The 2004 edition of the recommended practice underwent editorial revisions to meet the NFPA Manual of Style and included only minor editorial changes. The 2011 editio
36、n reconrmed the provisions as they were written in the 2004 edition. The 2016 edition adds heat of combustion and auto-ignition temperature data to the expanded table of nonmetallic materials for oxygen service. In addition, new re experience reports have been added to Annex D.MATERIALS, EQUIPMENT,
37、AND SYSTEMS USED IN OXYGEN-ENRICHED ATMOSPHERES 53-2 2016 Edition Technical Committee on Oxygen-Enriched Atmospheres Richard C. Barry, Chair Healogics, FL U Alain Colson, Air Liquide S.A., France M Jolene E. Cormier, Baylor Medical Center, TX U Sean Dee, Exponent, IL SE Kim Phillips Dunleavy, Dunlea
38、vy Technical Services Inc., Canada M Sean Faughnan, East Orange General Hospital, NJ U Jack D. Fry, Los Angeles Fire Department, CA E Craig H. Kampmier, Swansea Fire Department, MA E Joseph Million, Praxair, NY M Barry E. Newton, Wendell Hull & Associates, Inc., NM SE Keisa Rosales, Jacobs Technolog
39、y Inc., NM SE Jerrold Sameth, Compressed Gas Association, Inc., NJ IM Rep. Compressed Gas Association Myles Tenbroeck, American Cylinder and Safety, AR M Frederick Williams, U.S. Naval Research Laboratory, DC SE Alternates Walter Joslyn, CDA Technical Institute, FL U (Alt. to Richard C. Barry) Rober
40、t Nelson, Los Angeles Fire Department, CA E (Alt. to Jack D. Fry) James White, Praxair, NY M (Alt. to Joseph Million) Laura E. Montville, NFPA Staff Liaison This list represents the membership at the time the Committee was balloted on the nal text of this edition. Since that time, changes in the mem
41、bership may have occurred. A key to classications is found at the back of the document. NOTE: Membership on a committee shall not in and of itself constitute an endorsement of the Association or any document developed by the committee on which the member serves. Committee Scope: This Committee shall
42、 have primary responsibility for documents on the re and explosion hazards that may exist in oxygen-enriched atmospheres. The Committee will correlate its work with the Committee on Health Care Facilities and other related NFPA committees as required.CONTENTS 53-3 2016 Edition Contents Chapter 1 Adm
43、inistration 53 4 1.1 Scope. . 53 4 1.2 Purpose. . 53 4 1.3 Application. . 53 4 1.4 Interpretations. . 53 4 Chapter 2 Referenced Publications 53 4 2.1 General. . 53 4 2.2 NFPA Publications. . 53 4 2.3 Other Publications. . 53 4 2.4 References for Extracts in Recommendations Sections. . 53 5 Chapter 3
44、 Denitions 53 5 3.1 General. . 53 5 3.2 NFPA Ofcial Denitions. 53 5 3.3 General Denitions. 53 5 Chapter 4 Types of Systems Used in Oxygen-Enriched Atmospheres . 53 6 4.1 General. . 53 6 Chapter 5 Materials Selection . 53 7 5.1 General. . 53 7 5.2 Nonmetals. 53 7 5.3 Metals. 53 7 Chapter 6 Component
45、Selection . 53 7 6.1 Material Recommendations. 53 7 6.2 General Design Recommendations. 53 7 6.3 Specic Component Design Guidelines. . 53 7 6.4 Components. . 53 8 Chapter 7 System Design . 53 9 7.1 Design Considerations. . 53 9 7.2 Worst-Case Conditions. . 53 9 7.3 Fire-Stopping Techniques. 53 9 7.4
46、 Personnel Qualications. . 53 9 7.5 Oxygen Transmission. . 53 9 7.6 Shutoff. 53 9 7.7 Electrical Equipment. . 53 9 7.8 Cleaning for Oxygen Service. . 53 9 7.9 Combustibles. 53 10 7.10 Applicable Standards. . 53 10 Chapter 8 Fire Extinguishment . 53 10 8.1 Oxygen Supply. . 53 10 8.2 Extinguishing Sys
47、tems. . 53 10 8.3 Fixed Systems. . 53 10 8.4 Water Hose. . 53 10 8.5 Diluents. . 53 10 8.6 Limiting Fire Spread. 53 10 8.7 Nontoxic Agents. . 53 10 8.8 Wetting. 53 10 8.9 Instructions and Drills. . 53 10 Annex A Explanatory Material 53 10 Annex B Training and Education 53 14 Annex C Utilization of O
48、xygen-Enriched Atmospheres . 53 15 Annex D Fire Experience 53 19 Annex E Fundamentals of Ignition and Combustion in Oxygen-Enriched Atmospheres . 53 30 Annex F Materials for Use in Oxygen-Enriched Atmospheres . 53 35 Annex G Informational References . 53 56 Index . 53 58MATERIALS, EQUIPMENT, AND SYS
49、TEMS USED IN OXYGEN-ENRICHED ATMOSPHERES 53-4 2016 Edition NFPA 53 Recommended Practice on Materials, Equipment, and Systems Used in Oxygen-Enriched Atmospheres 2016 Edition IMPORTANT NOTE: This NFPA document is made available for use subject to important notices and legal disclaimers. These notices and disclaimers appear in all publications containing this document and may be found under the heading “Important Notices and Disclaimers Concerning NFPA Documents.” They
