ASTM_D_92_-_18.pdf

Designation:D9218American Association StateHighway and Transportation Officials StandardAASHTO No.:T48DIN 51 376Standard Test Method forFlash and Fire Points by Cleveland Open Cup Tester1This standard is issued under the fixed designation D92;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.INTRODUCTIONThis flash point and fire point test method is a dynamic method and depends on definite rates oftemperature increases to control the precision of the test method.Its primary use is for viscousmaterials having flash point of 79 C(175 F)and above.It is also used to determine fire point,whichis a temperature above the flash point,at which the test specimen will support combustion for aminimum of 5 s.Do not confuse this test method with Test Method D4206,which is a sustainedburning test,open cup type,at a specific temperature of 49 C(120 F).Flash point values are a function of the apparatus design,the condition of the apparatus used,andthe operational procedure carried out.Flash point can therefore only be defined in terms of a standardtest method,and no general valid correlation can be guaranteed between results obtained by differenttest methods,or with test apparatus different from that specified.1.Scope*1.1 This test method describes the determination of the flashpoint and fire point of petroleum products by a manualCleveland open cup apparatus or an automated Cleveland opencup apparatus.NOTE1The precisions for fire point were not determined in thecurrent interlaboratory program.Fire point is a parameter that is notcommonly specified,although in some cases,knowledge of this flamma-bility temperature may be desired.1.2 This test method is applicable to all petroleum productswith flash points above 79 C(175 F)and below 400 C(752 F)except fuel oils.NOTE2This test method may occasionally be specified for thedetermination of the fire point of a fuel oil.For the determination of theflash points of fuel oils,use Test Method D93.Test Method D93 shouldalso be used when it is desired to determine the possible presence of smallbut significant concentrations of lower flash point substances that mayescape detection by Test Method D92.Test Method D1310 can beemployed if the flash point is known to be below 79 C(175 F).1.3 The values stated in SI units are to be regarded as thestandard.1.3.1 ExceptionThe values given in parentheses are forinformation only.1.4 WARNINGMercury has been designated by manyregulatory agencies as a hazardous substance that can causeserious medical issues.Mercury,or its vapor,has been dem-onstrated to be hazardous to health and corrosive to materials.Use Caution when handling mercury and mercury-containingproducts.See the applicable product Safety Data Sheet(SDS)for additional information.The potential exists that sellingmercury or mercury-containing products,or both,is prohibitedby local or national law.Users must determine legality of salesin their location.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.For specific warning statements,see 6.4,7.1,11.1.3,and11.2.4.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.1This test method is under the joint jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.08 on Volatility.In the IP,this test method is under thejurisdiction of the Standardization Committee.This test method was adopted as ajoint ASTM-IP standard in 1965.Current edition approved July 1,2018.Published August 2018.Originallyapproved in 1921.Last previous edition approved in 2016 as D92 16b.DOI:10.1520/D0092-18.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 2.Referenced Documents2.1 ASTM Standards:2D93 Test Methods for Flash Point by Pensky-Marten