ASTM_F_1273_-_91_2013.pdf

Designation:F127391(Reapproved 2013)An American National StandardStandard Specification forTank Vent Flame Arresters1This standard is issued under the fixed designation F1273;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification provides the minimum requirementsfor design,construction,performance,and testing of tank ventflame arresters.1.2 This specification is intended for flame arresters protect-ing systems containing vapors of flammable or combustibleliquids where vapor temperatures do not exceed 60C.The testmedia defined in 9.1.1 can be used except where arrestersprotect systems handling vapors with a maximum experimentalsafe gap(MESG)below 0.9 mm.Flame arresters protectingsuch systems must be tested with appropriate media(the samevapor or a media having a MESG no greater than the vapor).Various gases and their respective MESG are listed in Table 1.NOTE1Flame arresters meeting this specification also comply withthe minimum requirements of the International Maritime Organization,Maritime Safety Committee Circular No.373(MSC/Circ.373/Rev.1).1.3 The values stated in either inch-pound or SI units are tobe regarded as the standard.The values given in parenthesesare for information only.1.4 The following precautionary caveat pertains only to thetest methods portions,Sections 8 and 9,of this specification:This standard does not purport to address all of the safetyconcerns,if any,associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.1.5 This standard should be used to measure and describethe properties of materials,products,or assemblies in responseto heat and flame under controlled laboratory conditions andshould not be used to describe or appraise the fire hazard orfire risk of materials,products,or assemblies under actual fireconditions.However,results of this test may be used aselements of a fire risk assessment which takes into account allof the factors which are pertinent to an assessment of the firehazard of a particular end use2.Referenced Documents2.1 ASTM Standards:2F722 Specification for Welded Joints for Shipboard PipingSystemsF1155 Practice for Selection and Application of PipingSystem Materials2.2 ANSI Standard:B16.5 Pipe Flanges and Flanged Fittings32.3 Other Documents:ASME Boiler and Pressure Vessel Code:Section VIII,Di-vision 1,Pressure Vessels4ASME Boiler and Pressure Vessel Code:Section IX,Weld-ing and Brazing Qualifications4International Maritime Organization,Maritime Safety Com-mittee:MSC/Circ.373/Rev.1 Revised Standards for theDesign,Testing and Locating of Devices to Prevent thePassage of Flame into Cargo Tanks in Tankers5International Electrotechnical Commission:Publication 79-1Electrical Apparatus for Explosive Gas Atmospheres63.Terminology3.1 Definitions:3.1.1 flame arrestera device to prevent the passage offlame in accordance with a specified performance standard.Itsflame arresting element is based on the principle of quenching.3.1.2 flame passagethe transmission of a flame through aflame arrester.3.1.3 flame speedthe speed at which a flame propagatesalong a pipe or other system.3.1.4 gasoline vaporsa nonleaded petroleum distillateconsisting essentially of aliphatic hydrocarbon compoundswith a boiling range of approximately 65 to 75C.1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.11 onMachinery and Piping Systems.Current edition approved Oct.1,2013.Published October 2013.Originallyapproved in 1991.Last previous edition approved in 2007 as F1273-91(2007).DOI:10.1520/F1273-91R13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.4Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.5Available from International Maritime Organization,4 Albert Embankment,London SE1 7SR,England.6Available from International Electrotechnical Commission,3 rue de Varembe,Case Postale 131,CH-1211,Geneva 20,Switzerland.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Classification4.1 The two types of flame arresters covered in this speci-fication are classified as follows:4.1.1 Type IFlame arresters acceptable for end-of-lineapplications.4.1.2 Ty