1、Designation:E270715An American National StandardStandard Test Method forDetermining Fire Penetration of Exterior Wall AssembliesUsing a Direct Flame Impingement Exposure1This standard is issued under the fixed designation E2707;the number immediately following the designation indicates the year ofor
2、iginal 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 fire-test-response standard prescribes a method toassess the fi
3、re performance of a vertically oriented specimenexposed to direct flame impingement in a simulated externalfire exposure potentially encountered in a Wildland UrbanInterface scenario.This test method provides data suitable forcomparing the performance of materials,which are used as theexposed surfac
4、es of exterior walls in construction applications.NOTE1This test method closely follows the test procedure ofCalifornia Office of State Marshal(SFM)Method 12-7A-1.21.2 This test method measures the ability of the wall systemto resist fire penetration from the exterior into the wall cavityor unexpose
5、d side of the test assembly under the conditions ofexposure.1.3 This test method provides data suitable for comparingthe performance of vertically oriented materials,products orassemblies in exterior construction applications.The test speci-men shall be tested in thicknesses and configurations repre
6、sen-tative of actual end product or system uses.1.4 Limitations of the test method are listed in Section 5.5.1.5 The system of units to be used in referee decisions is theSI system of units;see IEEE/ASTM SI-10 for further details.The units given in parentheses are for information only.1.6 This stand
7、ard 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.1.7 This
8、 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.1.8 Fire testing is inhere
9、ntly hazardous.Adequate safe-guards for personnel and property shall be employed inconducting these tests.2.Referenced Documents2.1 ASTM Standards:3D2898 Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire TestingD4442 Test Methods for Direct Moisture Content Measure-ment of
10、Wood and Wood-Based MaterialsD4444 Test Method for Laboratory Standardization andCalibration of Hand-Held Moisture MetersD6662 Specification for Polyolefin-Based Plastic LumberDecking BoardsD7032 Specification for Establishing Performance Ratingsfor Wood-Plastic Composite Deck Boards and GuardrailSy
11、stems(Guards or Handrails)E176 Terminology of Fire StandardsE1354 Test Method for Heat and Visible Smoke ReleaseRates for Materials and Products Using an Oxygen Con-sumption CalorimeterE1474 Test Method for Determining the Heat Release Rateof Upholstered Furniture and Mattress Components orComposite
12、s Using a Bench Scale Oxygen ConsumptionCalorimeterE1740 Test Method for Determining the Heat Release Rateand Other Fire-Test-Response Characteristics of WallCovering or Ceiling Covering Composites Using a ConeCalorimeterE2102 Test Method for Measurement of Mass Loss andIgnitability for Screening Pu
13、rposes Using a Conical Ra-diant HeaterE2257 Test Method for Room Fire Test of Wall and CeilingMaterials and AssembliesE2886 Test Method for Evaluating the Ability of Exterior1This test method is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcomm
14、ittee E05.14 on External FireExposures.Current edition approved Oct.1,2015.Published November 2015.Originallyapproved in 2009.Last previous edition approved in 2014 as E270714.DOI:10.1520/E2707-15.22007 California Building Code,Chapter 7ASFM,Materials and ConstructionMethods for Exterior Wildfire Ex
15、posure,Exterior Wall Siding and Sheathing,SFMStandard 12-7A-1.3For 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.Copy
16、right ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Vents to Resist the Entry of Embers and Direct FlameImpingementIEEE/ASTM SI-10 American National Standard for Use ofthe International System of Units(SI):The Modern MetricSystem2.2 ISO Standards:ISO 13943 Fire SafetyVocabulary43.Terminology3.1 DefinitionsFor definitions of terms used in thisstandard,see Terminology E176 and ISO 13943.In case ofconflict,the definitions given in Terminology E1