ANSI ASTM E84-2017 Standard Test Method for Surface Burning Characteristics of Building Materials.pdf

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1、Designation: E84 17 An American National StandardStandard Test Method forSurface Burning Characteristics of Building Materials1This standard is issued under the fixed designation E84; the number immediately following the designation indicates the year of originaladoption or, in the case of revision,

2、 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.1. Scope*1.1 This fire-testresponse

3、 standard for the comparativesurface burning behavior of building materials is applicable toexposed surfaces such as walls and ceilings. The test isconducted with the specimen in the ceiling position with thesurface to be evaluated exposed face down to the ignitionsource. The material, product, or a

4、ssembly shall be capable ofbeing mounted in the test position during the test. Thus, thespecimen shall either be self-supporting by its own structuralquality, held in place by added supports along the test surface,or secured from the back side.1.2 The purpose of this test method is to determine ther

5、elative burning behavior of the material by observing theflame spread along the specimen. Flame spread and smokedeveloped index are reported. However, there is not necessarilya relationship between these two measurements.1.3 The use of supporting materials on the underside of thetest specimen has th

6、e ability to lower the flame spread indexfrom those which might be obtained if the specimen could betested without such support. These test results do not neces-sarily relate to indices obtained by testing materials withoutsuch support.1.4 Testing of materials that melt, drip, or delaminate tosuch a

7、 degree that the continuity of the flame front is destroyed,results in low flame spread indices that do not relate directly toindices obtained by testing materials that remain in place.1.5 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathem

8、aticalconversions to SI units that are provided for information onlyand are not considered standard.1.6 The text of this standard references notes and footnotesthat provide explanatory information. These notes andfootnotes, excluding those in tables and figures, shall not beconsidered as requirement

9、s of the standard.1.7 This standard is used to measure and describe theresponse of materials, products, or assemblies to heat andflame under controlled conditions, but does not by itselfincorporate all factors required for fire-hazard or fire-riskassessment of the materials, products, or assemblies

10、underactual fire conditions.1.8 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

11、prior to use.1.9 Fire testing is inherently hazardous. Adequate safe-guards for personnel and property shall be employed inconducting these tests.1.10 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision o

12、n 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:2A390 Specification for Zinc-Coated (Galvanized) SteelPoultry Fence Fabric (Hexagonal an

13、d Straight Line)C1186 Specification for Flat Fiber-Cement SheetsC1288 Specification for Fiber-Cement Interior SubstrateSheetsD4442 Test Methods for Direct Moisture Content Measure-ment of Wood and Wood-Based MaterialsD4444 Test Method for Laboratory Standardization andCalibration of Hand-Held Moistu

14、re MetersE69 Test Method for Combustible Properties of TreatedWood by the Fire-Tube ApparatusE160 Test Method for Combustible Properties of TreatedWood by the Crib Test3E162 Test Method for Surface Flammability of MaterialsUsing a Radiant Heat Energy Source1This test method is under the jurisdiction

15、 of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.22 on SurfaceBurning.Current edition approved Aug. 1, 2017. Published August 2017. Originallyapproved in 1950. Last previous edition approved in 2016 as E84 16. DOI:10.1520/E0084-17.2For referenced ASTM stan

16、dards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandardsvolume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM Interna

17、tional, 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, Gu

18、ides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1E176 Terminology of Fire StandardsE286 Test Method for Surface Flammability of BuildingMaterials Using an 8-ft (2.44-m) Tunnel Furnace (With-drawn 1991)3E2231 Practice for Specimen Preparatio

19、n and Mounting ofPipe and Duct Insulation Materials to Assess SurfaceBurning CharacteristicsE2404 Practice for Specimen Preparation and Mounting ofTextile, Paper or Polymeric (Including Vinyl) and WoodWall or Ceiling Coverings, Facings and Veneers, toAssessSurface Burning CharacteristicsE2573 Practi

20、ce for Specimen Preparation and Mounting ofSite-Fabricated Stretch Systems to Assess Surface Burn-ing CharacteristicsE2579 Practice for Specimen Preparation and Mounting ofWood Products to Assess Surface Burning CharacteristicsE2599 Practice for Specimen Preparation and Mounting ofReflective Insulat

21、ion, Radiant Barrier and Vinyl StretchCeiling Materials for Building Applications to AssessSurface Burning CharacteristicsE2688 Practice for Specimen Preparation and Mounting ofTapes to Assess Surface Burning CharacteristicsE2690 Practice for Specimen Preparation and Mounting ofCaulks and Sealants t

22、o Assess Surface Burning Charac-teristicsE2768 Test Method for Extended Duration Surface BurningCharacteristics of Building Materials (30 min Tunnel Test)E2988 Practice for Specimen Preparation and Mounting ofFlexible Fibrous Glass Insulation for Metal Buildings toAssess Surface Burning Characterist

23、ics2.2 NFPA Standards:4NFPA 262 Standard Method of Test for Flame Travel andSmoke of Wires and Cables for Use in Air-HandlingSpaces (2007)2.3 UL Standards5UL 1820 Standard for Safety for Fire Test of PneumaticTubing for Flame and Smoke Characteristics (2004)UL 1887 Standard for Fire Test of Plastic

24、Sprinkler Pipe forVisible Flame and Smoke Characteristics (2004)UL 2024 Standard for Safety for Optical Fiber and Commu-nication Cable Raceway (2004)3. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this test method referto Terminology E176. The term flame spread index fromTermino

25、logy E176 is of particular interest to this standard andis defined in 3.1.2.3.1.2 flame spread index, na number or classificationindicating a comparative measure derived from observationsmade during the progress of the boundary of a zone of flameunder defined test conditions.3.2 Definitions of Terms

26、 Specific to This Standard:3.2.1 smoke developed index, na number or classificationindicating a comparative measure derived from smoke obscu-ration data collected during the test for surface burningcharacteristics.3.2.2 surface flame spread, nthe propagation of a flameaway from the source of ignitio

27、n across the surface of thespecimen.4. Significance and Use4.1 This test method is intended to provide only compara-tive measurements of surface flame spread and smoke densitymeasurements with that of select grade red oak and fiber-cement board surfaces under the specific fire exposure condi-tions d

28、escribed herein.4.2 This test method exposes a nominal 24-ft (7.32-m) longby 20-in. (508-mm) wide specimen to a controlled air flow andflaming fire exposure adjusted to spread the flame along theentire length of the select grade red oak specimen in 512 min.4.3 This test method does not provide for t

29、he following:4.3.1 Measurement of heat transmission through the testedsurface.4.3.2 The effect of aggravated flame spread behavior of anassembly resulting from the proximity of combustible wallsand ceilings.4.3.3 Classifying or defining a material as noncombustible,by means of a flame spread index b

30、y itself.5. Apparatus5.1 Fire Test ChamberSee Figs. 1-5.5.1.1 The fire test chamber is a rectangular horizontal ductwith a removable lid. The inside dimensions are as follows:Width: 1734 14 in. (451 6.3 mm) measured between the topledges along the side walls, and 1758 38 in.(44810mm) at all other po

31、ints.Depth: 12 12 in. (305 13 mm) measured from the bottom of thetest chamber to the top of the ledges on which thespecimen is supported. This measurement includes the18in. (3.2 mm) thickness of the 112 in. (38 mm) wide wovenfiberglass gasket tape.Length: 25 ft 3 in. (7.62m76mm).5.1.2 The sides and

32、base of the chamber shall be lined withan insulating firebrick with the dimensions of 412 in. by 9 in.by 212 in. thick as illustrated in Fig. 2. The insulating firebrickshall have the following properties:Maximum Recommended Temperature 2600F (1427C)Bulk Density 483lb/ft3(0.77 0.046 g/cm3)Thermal Co

33、nductivity at MeanTemperature ofBtuin./hft2F W/mC500F (260C) 1.6 0.231000F (538C) 1.9 0.271500F (815C) 2.2 0.322000F (1093C) 2.6 0.375.1.3 One side of the chamber shall be provided with doubleobservation windows6with the inside pane flush mounted (seeFig. 2). Exposed inside glass shall be 234 638 by

34、11+1,2in. (70 6 10 by 279 + 25 50 mm). The centerline of the3The last approved version of this historical standard is referenced onwww.astm.org.4Available from National Fire Protection Association, 1 Battery March Park,Quincy, MA 02169.5Available from Underwriters Laboratories, 333 Pfingsten Road, N

35、orthbrook, IL60062.6Heat-resistant glass, high-silica, 100 % silica glass, nominal14-in. thick hasbeen found suitable for the interior pane. Borosilicate glass, nominal14-in. thick hasbeen found suitable for the exterior pane.E84172exposed area of the inside glass shall be in the upper half of thefu

36、rnace wall, with the upper edge not less than 2.5 in. (63 mm)below the furnace ledge. The window shall be located such thatnot less than 12 in. (305 mm) of the specimen width can beobserved. Multiple windows shall be located along the tunnelso that the entire length of the test sample is observable

37、fromoutside the fire chamber. The windows shall be pressure tightin accordance with 7.2 and 7.2.1.5.1.4 The ledges shall be fabricated of structural materials7capable of withstanding the abuse of continuous testing. Theledges shall be level with respect to the length and width of thechamber and each

38、 other. The ledges shall be maintained in astate of repair commensurate with the frequency, volume, andseverity of testing occurring at any time.5.1.5 Lid:5.1.5.1 The lid shall consist of a removable noncombustiblemetal and mineral composite structure as shown in Fig. 2 andof a size necessary to cov

39、er completely the fire test chamberand the test samples. The lid shall be maintained in anunwarped and flat condition. When in place, the lid shall becompletely sealed to prevent air leakage into the fire testchamber during the test.5.1.5.2 The lid shall be insulated with a minimal thicknessof 2 in.

40、 (51 mm) castable insulation or mineral compositematerial having physical characteristics comparable to thefollowing:Maximum effective use temperature ofat least: 1200F (650C)Bulk density 21 lb/ft3(336 kg m3)Thermal conductivity at 300 to 700F(149 to 371C)0.50 to 0.71 Btuin./hft2F (0.072 to0.102 W/m

41、K)5.1.5.3 The entire lid assembly shall be protected with flatsections of nominal14-in. (6.3-mm) fiber-cement board meet-ing the properties of Annex A3. This protective board shall bemaintained in sound condition through continued replacement.The protective board is to be secured to the furnace lid

42、or placeon the back side of the test specimen.5.1.6 Gas Burners:5.1.6.1 One end of the test chamber shall be designated asthe “fire end”. This fire end shall be provided with two gasburners delivering flames upward against the surface of the testsample (see Fig. 2). The burners shall be spaced 12 in

43、. (305mm) from the fire end of the test chamber, and 712 612 in.(190 6 13 mm) below the under surface of the test sample. Gasto the burners shall be provided through a single inlet pipe,distributed to each port burner through a tee-section. The outletshall be a34 in. NPT elbow. The plane of the port

44、 shall beparallel to the furnace floor, such that the gas is directedupward toward the specimen. Each port shall be positionedwith its centerline 4 612 in. (102 6 13 mm) on each side ofthe centerline of the furnace so that the flame is distributedevenly over the width of the exposed specimen surface

45、 (seeFig. 2).5.1.6.2 The controls used to assure constant flow of gas tothe burners during period of use shall consist of a pressureregulator, a gas meter constructed to read in increments of not7High-temperature furnace refractory. Zirconium silicate, or water-cooled steeltubing have been found sui

46、table for this purpose.FIG. 1 Test Furnace, Showing Some Critical Dimensions (Not a Construction Drawing)E84173more than 0.1 ft3(2.8 L), a manometer to indicate gas pressurein inches of water, a quick-acting gas shut-off valve, and a gasmetering valve.5.1.7 Air Intake:5.1.7.1 An air intake shutter s

47、hall be located 54 6 5 in.(1372 6 127 mm) upstream of the burner, as measured fromthe burner centerline to the outside surface of the shutter (seeFig. 1). The air intake is to be fitted with a vertically slidingshutter extending the entire width of the test chamber. Theshutter shall be positioned so

48、 as to provide an air inlet port 3 6116 in. (76 6 2 mm) high measured from the floor level of thetest chamber at the air intake point.5.1.7.2 To provide air turbulance for proper combustion,turbulance baffling shall be provided by positioning six refrac-tory firebricks (as defined in 5.1.2) along th

49、e side walls of thechamber. With the long dimension vertical, 412 in. (114-mm)dimension along the wall, place the bricks as follows from thecenterline of the burner ports:On the window side at 7, 12, and 20 12 ft (2.1, 3.7, and 6.1 0.2 m)On the opposite side at 412,912, and 16 12 ft (1.3, 2.9, and 4.9 0.2 m)5.1.7.3 The movement of air shall be by an induced draftsystem having a total draft capacity of at least 0.15 in. (3.8mm) water column with the sample in place, the shutter at theFIG. 2 Test Furnace Sh

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