ASTM_E_2257_-_17.pdf

Designation:E225717An American National StandardStandard Test Method forRoom Fire Test of Wall and Ceiling Materials andAssemblies1This standard is issued under the fixed designation E2257;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.Scope*1.1 This is a fire-test-response standard.1.2 This test method is intended to evaluate,under specifiedfire-exposure conditions,the contribution to room fire growthprovided by wall or ceiling materials and assemblies,or both.The method is not intended to evaluate the fire endurance ofassemblies or fires originating in the wall assembly.Themethod provides a means to evaluate the effectiveness ofthermal barriers in restricting the contribution of combustiblematerials in the wall assembly to fire growth in a room fire.1.3 This test method,simulating a fire in the corner of a2420 by 3630 mm(8 by 12 ft)room containing a single opendoorway,provides a means to evaluate the relative perfor-mance of specified wall and ceiling materials or assemblieswhen they are used together in the same relationship within anenclosure,and simulating the manner in which they will beused.1.4 This test method is intended to evaluate the contributionto fire growth provided by a surface product using a specifiedignition source.It shall,however,be noted that the type,position and heat output of the ignition source will consider-ably influence fire growth.The thermal exposure conditionsfrom the ignition source specified in this method will result inflashover during the 20 min duration for many common finishmaterials,in particular if specimens are mounted on the wallsand the ceiling(standard configuration).1.5 This test method provides a means for evaluating walland ceiling finish materials and assemblies,including panels,tiles,boards,sprayed or brushed coatings,etc.This test methodis not intended to evaluate flooring materials or furnishings.1.6 This method shall be used in conjunction with GuideE603,which covers instrumentation and the general effect ofvarious parameters,and Guide E2067,which deals withfull-scale oxygen consumption calorimetry.1.7 The values stated in SI units are to be regarded as thestandard.The units given in parentheses are for informationonly.1.8 The text of this standard references notes and footnoteswhich provide explanatory information.These notes and foot-notes(excluding those in figures)shall not be considered asrequirements of the standard.1.9 This standard is used to measure and describe theresponse of materials,products,or assemblies to heat and flameunder controlled conditions,but does not by itself incorporateall factors required for fire-hazard or fire-risk assessment of thematerials,products,or assemblies under actual fire conditions.1.10 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 and health practices and determine the applica-bility of regulatory limitations prior to use.1.11 Fire testing is inherently hazardous.Adequate safe-guards for personnel and property shall be employed inconducting these tests.1.12 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.2.Referenced Documents2.1 ASTM Standards:2E84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE136 Test Method for Behavior of Materials in a VerticalTube Furnace at 750CE176 Terminology of Fire StandardsE603 Guide for Room Fire ExperimentsE2067 Practice for Full-Scale Oxygen Consumption Calo-rimetry Fire Tests1This test method is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.21 on Smoke andCombustion Products.Current edition approved April 15,2017.Published April 2017.Originallyapproved in 2003.Last previous edition approved in 2016 as E2257-16.DOI:10.1520/E2257-17.2For 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.*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 Recomme