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AV .. <br /> 55-1 <br /> i <br /> t <br /> Copyright© 1998 NFPA,All Rights Reserved <br /> \ NFPA 55 <br /> Standard for the <br /> Storage, Use, and Handling of <br /> Compressed and <br /> ( Liquefied Gases in Portable Cylinders <br /> 1998 Edition <br /> This edition of NFPA 55,Standard for the Storage, Use,and dandling of Comprfssed and Liquefied <br /> Gases in Portable Cylinders,was prepared by the Technical Committee on Industrial and Medical <br /> Gases and acted on by the National Fire Protection Association,Inc.,at its Fall Meeting held <br /> November 17-19,1997,in Kansas City,MO.It was issued by the Standards Council on January <br /> 16, 1998,with an effective date of February 6, 1998, and supersedes all previous editions. <br /> Changes other than editorial are indicated by a vertical rule in the margin of the pages ;e <br /> on which they appear.These lines are included as an aid to the user in identifying changes <br /> from the previous edition. <br /> This edition of NFPA 55 was approved as an American National Standard on March 31, <br /> 1998. <br /> Origin and Development of NFPA 55 <br /> NFPA 55 was developed by the Industrial and Medical Gases Committee in recognition <br /> of the need to provide information on the use of cylinder gases in one standard. The <br /> Compressed Gas Association assisted the project by submitting a draft that was used as the <br /> framework for the standard. <br /> NFPA 55 supersedes NFPA 43C, Code for the Storage of Gaseous Oxidizing Materials, which <br /> was developed by the Committee on Hazardous Chemicals and transferred to the Industrial <br /> and Medical Gases Committee.The committee believed that one standard covering storage <br /> of all gas cylinders was needed and, with the new NFPA 55, the need for NFPA 43C no <br /> longer existed. <br /> Since this standard was introduced in 1993,it has been widely used and accepted by users <br /> of different types of gases as a single source covering requirements for installation and usage <br /> of gases in portable cylinders.This second edition clarifies many requirements and provides <br /> additional advisory information to assist the users of the standard. Editorial changes were <br /> also incorporated for clarity. <br /> i <br />