1、NFPA 55 Compressed Gases and Cryogenic Fluids Code 2016 Edition NFPA, 1 Batterymarch Park, Quincy, MA 02169-7471 An International Codes and Standards OrganizationIMPORTANT NOTICES AND DISCLAIMERS CONCERNING NFPA DOCUMENTS NOTICE AND DISCLAIMER OF LIABILITY CONCERNING THE USE OF NFPA DOCUMENTS NFPA c
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29、o cost at www.nfpa.org/freeaccess.55-1 NFPA and National Fire Protection Association are registered trademarks of the National Fire Protection Association, Quincy, Massachusetts 02169. Copyright 2015 National Fire Protection Association . All Rights Reserved. NFPA 55 Compressed Gases and Cryogenic F
30、luids Code 2016 Edition This edition of NFPA 55, Compressed Gases and Cryogenic Fluids Code, was prepared by the Technical Committee on Industrial and Medical Gases. It was issued by the Standards Council on May 26, 2015, with an effective date of June 15, 2015, and supersedes all previous editions.
31、 This edition of NFPA 55 was approved as an American National Standard on June 15, 2015. Origin and Development of NFPA 55 NFPA 55 was developed by the Industrial and Medical Gases Committee in recognition of the need to provide information on the use of cylinder gases in one standard. The Compresse
32、d Gas Association assisted the project by submitting a draft that was used as the framework for the standard. NFPA 55 supersedes NFPA 43C, Code for the Storage of Gaseous Oxidizing Materials, which was developed by the Committee on Hazardous Chemicals and transferred to the Industrial and Medical Ga
33、ses Committee. The committee believed that one standard covering storage of all gas cylinders was needed and, with the new NFPA 55, the need for NFPA 43C no longer existed. Since this standard was introduced in 1993, it has been widely used and accepted by users of different types of gases as a sing
34、le source covering requirements for installation and usage of gases in portable cylinders. The 1998 edition claried many requirements and provided additional advisory information to assist the users of the standard. Editorial changes were also incorporated for clarity. The 2003 edition of NFPA 55 wa
35、s a complete revision of the document that signicantly expanded the document scope and introduced requirements for areas not addressed in previous editions. For example, the 1998 edition covered only compressed and liqueed gases in portable cylinders and only at consumer (user) locations; the 2003 e
36、dition covered the use of compressed and liqueed gases in portable and stationary containers and at manufacturer sites and consumer sites. This expansion to manufacturer sites took a large portion of gas usage that was outside the scope of NFPA 55 and placed it under NFPA 55. There were many new sub
37、jects and requirements in the 2003 edition, including the following: (1) Requirements for cryogenic uids (2) Use of the concept of control areas for dening storage amounts and requirements (3) An expanded classication scheme to cover a greater range of gaseous materials (4) Specications for a hazard
38、ous materials management plan (5) Requirements for treating waste gases (6) More detailed requirements in many of the areas than the 1998 edition of NFPA 55 covered The 2003 edition was also restructured to comply with the Manual of Style for NFPA Technical Committee Documents. The 2005 edition of N
39、FPA 55 was a complete revision of the document. The following were some of the signicant changes to the document: (1) Incorporation of the requirements of NFPA 50, Standard for Bulk Oxygen Systems at Consumer Sites, into Chapter 9 (2) Incorporation of the requirements of NFPA 50A, Standard for Gaseo
40、us Hydrogen Systems at Consumer Sites, into Chapter 10 (3) Incorporation of NFPA 50B, Standard for Liqueed Hydrogen Systems at Consumer Sites, into Chapter 11 (4) Clarication of threshold storage requirements in Chapters 6 and 7 (5) Clarication of the separation distance tables formerly in NFPA 50,
41、NFPA 50A, and NFPA 50B, and now in Chapters 911COMPRESSED GASES AND CRYOGENIC FLUIDS CODE 55-2 2016 Edition (6) Schematic drawings added to annex material to illustrate system siting requirements in Chapters 9 and 11 The 2010 edition of NFPA 55 included a change in the documents title, from a standa
42、rd to a code. The following were some of the signicant changes to the document in the 2010 edition: (1) Incorporation of the requirements of NFPA 560, Standard for the Storage, Handling, and Use of Ethylene Oxide for Sterilization and Fumigation, into Chapter 14 (2) Updated separation distances to e
43、xposure from gaseous hydrogen systems based upon new research (3) Incorporation of the requirements on medical bulk oxygen systems from NFPA 99, Standard for Health Care Facilities, based on joint task group recommendations (4) Addition of a new chapter, Chapter 12, on gas generation systems (5) Add
44、ition of a new chapter, Chapter 13, on insulated liquid carbon dioxide systems The 2013 edition of NFPA 55 was a complete revision of the document. Some of the signicant changes to the document included the following: (1) Incorporation of the requirements of NFPA 51A, Standard for Acetylene Cylinder
45、 Charging Plants, into a new chapter, Chapter 15, on acetylene cylinder charging (2) Revisions to Chapters 10 and 11 on bulk compressed and liqueed hydrogen systems, including updates to separation distances to exposure from hydrogen systems (3) Changes to the table in Chapter 6 regarding maximum al
46、lowable quantity (MAQ) of hazardous materials per control area to provide clarication and consistency with the approach used to establish the requirement of NFPA 5000, Building Construction and Safety Code, and NFPA 1, Fire Code The 2016 edition has the following signicant changes: (1) Clarication a
47、nd organization of the requirements in Chapter 10 for gaseous hydrogen systems into three tiers based on the quantity of hydrogen stored: less than or equal to the MAQ (maximum allowable quantity), greater than the MAQ but less than bulk quantity, and bulk systems (2) Changes to the requirements in
48、Chapter 7 for emergency isolation (3) Complete revision of Chapter 13, Insulated Liquid Carbon Dioxide Systems, with a focus on carbon dioxide beverage systems (4) A new chapter on liquid nitrous oxide systems (Chapter 16)COMMITTEE PERSONNEL 55-3 2016 Edition Technical Committee on Industrial and Me
49、dical Gases Rob Early, Chair Praxair, NY M John J. Anicello, Airgas Inc., WA M William H. Barlen, Barlen and Associates, Inc., NJ SE Rodney L. Barnes, U.S. Department of Energy, TN U Erik W. Christiansen, Exponent, Inc., CA SE Therese Cirone, The Chlorine Institute, VA M Julie V. Cordero, Sandia National Laboratories, NM U David J. De Fina, Sterigenics International, Inc., IL IM Kenneth Fegley, Air Products and Chemicals, Inc., PA IM Rep. Compressed Gas Association Alejandro Gonzalez, Kryogenifex, FL M Martin T. Gresho, FP2 Fire
