1、Designation: E2579 15 An American National StandardStandard Practice forSpecimen Preparation and Mounting of Wood Products toAssess Surface Burning Characteristics1This standard is issued under the fixed designation E2579; the number immediately following the designation indicates the year oforigina
2、l 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 practice describes procedures for specimen prepa-ration and m
3、ounting when testing wood products to assessflames spread and smoke development as surface burningcharacteristics using Test Method E84.1.2 This practice applies also to laminated products factory-produced with a wood substrate (see 8.6). This practice doesnot apply to wood veneers or facings intend
4、ed to be applied onsite over a wood substrate, which are covered by PracticeE2404.1.3 Testing is conducted with Test Method E84.1.4 Testing for the reporting of the moisture content of thetest specimen is conducted with Test Methods D4442.1.5 This practice does not provide pass/fail criteria that ca
5、nbe used as a regulatory tool.1.6 Use the values stated in inch-pound units as thestandard, in referee decisions. The values in the SI system ofunits are given in parentheses, for information only; seeIEEE/ASTM SI-10 for further details.1.7 This fire standard cannot be used to provide quantitativeme
6、asures.1.8 Fire testing of products and materials is inherentlyhazardous, and adequate safeguards for personnel and propertyshall be employed in conducting these tests. Fire testinginvolves hazardous materials and equipment. This standardgives instructions on specimen preparation and mounting, butth
7、e fire-test-response method is given in Test Method E84. Seealso Section 10.1.9 The text of this standard references notes and footnoteswhich provide explanatory materials. These notes and foot-notes shall not be considered requirements of the standard.1.10 This standard does not purport to address
8、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.2. Referenced Documents2.1 ASTM Standards:2C1396/C1396M Speci
9、fication for Gypsum BoardD9 Terminology Relating to Wood and Wood-Based Prod-uctsD1038 Terminology Relating to Veneer and PlywoodD1554 Terminology Relating to Wood-Base Fiber and Par-ticle Panel MaterialsD4442 Test Methods for Direct Moisture Content Measure-ment of Wood and Wood-Base MaterialsD4444
10、 Test Method for Laboratory Standardization andCalibration of Hand-Held Moisture MetersD7438 Practice for Field Calibration and Application ofHand-Held Moisture MetersE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE176 Terminology of Fire StandardsE2404 Practice for Specimen
11、 Preparation and Mounting ofTextile, Paper or Polymeric (Including Vinyl) Wall orCeiling Coverings, and of Facings and Wood VeneersIntended to be Applied on Site Over a Wood Substrate, toAssess Surface Burning CharacteristicsIEEE/ASTM SI-10 International System of Units (SI): TheModern Metric System
12、2.2 CSA Standard:3CSA O121 Douglas Fir Plywood2.3 HPVA Standard:4ANSI/HPVA HP-1 American National Standard for Hard-wood and Decorative Plywood1This practice is under the jurisdiction of ASTM Committee E05 on FireStandards and is the direct responsibility of Subcommittee E05.22 on SurfaceBurning.Cur
13、rent edition approved April 1, 2015. Published May 2015. Originallyapproved in 2007. Last previous edition approved in 2013 as E2579-13. DOI:10.1520/E2579-15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of A
14、STMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from Canadian Standards Association (CSA), 178 Rexdale Blvd.,Toronto, ON Canada M9W 1R3.4Available from the Hardwood Plywood and Veneer Association, 1825 MichaelFaraday Dr., Reston, VA 20190.C
15、opyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.4 NIST Standard:5Voluntary Product Standard PS 1-07 Structural Plywood3. Terminology3.1 DefinitionsFor definitions of terms used in this prac-tice refer to the terminology contained in
16、Terminologies E176,D9, D1038, D1554, and ANSI/HPVA HP-1.4. Summary of Practice4.1 This practice describes procedures for specimenpreparation, mounting, and reporting, when testing woodproducts to assess flame spread and smoke development assurface burning characteristics using Test Method E84.5. Sig
17、nificance and Use5.1 Solid board, lumber and timber products (includingsolid boards, lumber, timber, fingerjoined lumber, glulam,laminate wood, laminated veneer lumber and parallel strandlumber products); panel products (including fibreboard,hardboard, oriented strandboard, waferboard and plywoodpan
18、el products); decorative wood products and shingles andshakes used as interior wall and ceiling finish are oftenevaluated with Test Method E84 to comply with code require-ments. This practice describes specimen preparation andmounting procedures for such materials and systems.5.2 If it can be demons
19、trated that none of the methodsdescribed in this practice are applicable to a particular product,other mounting methods shall be permitted to be used. Thisinformation shall be included in the report.5.3 The limitations for this procedure are those associatedwith Test Method E84.6. Conditioning6.1 Th
20、e test specimens shall be conditioned as described inthe section on specimen conditioning in Test Method E84.7. Test Specimens7.1 The test specimen sizes shall comply with those de-scribed in the test specimen section of Test Method E84. Thetest specimens shall be butted against the vent end of the
21、firetest chamber and shall consist of a continuous, unbrokenlength, or of sections joined or butted end-to-end. The testspecimens shall have a width of 20 to 24 in. (510 to 610 mm),a length of 24 ft + 12 in. 6 in. (7.32 m + 305 mm 152 mm)and a maximum thickness of 4 in. (101 mm).7.2 Wood product tes
22、t specimens shall be prepared asdescribed in Section 8.8. Test Specimen Preparation8.1 General:8.1.1 Wood products shall be representative of the materialswhich the test is intended to examine.8.1.2 The preparation of test specimens of wood productstreated by pressure impregnation or by other means
23、shall beidentical to that specified for untreated wood products.8.2 Solid Boards, Lumber, Timber, Fingerjoined Lumber,Glulam, Laminate Wood, Laminated Veneer Lumber and Par-allel Strand Lumber Products:8.2.1 General construction outline for solid board, lumber,timber, fingerjoined lumber, glulam, la
24、minate wood, laminatedveneer lumber and parallel strand lumber decks is shown inFig. 1.8.2.2 The thickness of the test material pieces shall berepresentative of the material which the test is intended toexamine.8.2.3 Batten strips shall be nominal 1 by316 in. (25 by 5mm) and shall be constructed of
25、metal.8.2.4 Use either cement coated nails or No. 8, 10 or 12 woodscrews, two per solid board, lumber, timber, fingerjoinedlumber, glulam, laminate wood, laminated veneer lumber andparallel strand lumber piece per batten, and of sufficient lengthto penetrate through the battens and not less than 75
26、% of thetest material.8.2.5 For outside edges, use the longest lumber, timber,fingerjoined lumber, glulam, laminate wood laminated veneer5Available from National Institute of Standards and Technology (NIST), 100Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.FIG. 1 General Construction Outline fo
27、r Solid Board, Lumber, Timber, Fingerjoined Lumber, Glulam, Laminate Wood, Laminated VeneerLumber and Parallel Strand Lumber DecksE2579 152lumber parallel strand lumber strips available. If shorter than96 in. (2.44 m), use 6 in. (152 mm) long batten strips. Do notuse lumber, timber, fingerjoined lum
28、ber, glulam, laminatewood, laminated veneer lumber, or parallel strand lumber stripsless than 24 in. (610 mm) long on outside edges.8.2.6 Allow 6 in. (152 mm) minimum distance betweenother joints on adjacent lumber, timber, fingerjoined lumber,glulam, laminate wood laminated veneer lumber parallel s
29、trandlumber strips.8.2.7 While fastening with nails or screws, use cabinetclamps or other suitable means to ensure there are no cracks, orgaps between the lumber, timber, fingerjoined lumber, glulam,laminate wood laminated veneer lumber parallel strand lumberstrips in the deck surface.8.2.8 Mount th
30、e specimens on the ledges of the Test MethodE84 furnace without using additional means of support.8.3 Panel Products with Suffcient Structural Integrity toSupport Themselves:8.3.1 Panel products with sufficient structural integrity tosupport themselves shall be cut to the width of the fire testchamb
31、er, butted end-to-end, and mounted on the ledges of theTest Method E84 furnace without using additional means ofsupport.8.3.2 Panel products14 in. (6.3 mm) or less in thickness notintended to be applied over gypsum board or a wood substrateshall be cut to the width of the fire test chamber, butteden
32、d-to-end, and mounted on the ledges of the Test Method E84furnace without additional means of support if they havesufficient integrity to support themselves within the test cham-ber without sagging116 in. (1.5 mm) or more when measuredat the centre-line of the test chamber.8.4 Wood Veneers and Panel
33、 Products with InsuffcientStructural Integrity to Support Themselves:8.4.1 Wood veneers and panel products with insufficientstructural integrity to support themselves shall be cut to thewidth of the fire test chamber, butted end-to-end and supportedwithin the fire test chamber by steel rods not more
34、 than18 in.(3 mm) in diameter spanning the width of the tunnel. The rodsshall be placed approximately 2 in. (51-mm) from each end ofeach panel and at approximately 24 in. (610 mm) intervalsstarting with the fire end of each panel.8.4.2 Wood veneers and panel products18 in. (3 mm) or lessin thickness
35、 not intended to be applied over gypsum board ora wood substrate, and with insufficient integrity to supportthemselves within the test chamber without sagging116 in. (1.5mm) or more when measured at the centre-line of the testchamber, shall be cut to the width of the fire test chamber,butted end-to-
36、end, and supported within the test chamber bysteel rods not more than14 in. (6.3 mm) in diameter spanningthe width of the tunnel. The rods shall be placed approximately2 in. (51 mm) from each end of each panel and at approxi-mately 24 in. (610 mm) intervals starting at the fire end of eachpanel.8.5
37、Wood Veneers and Panel Products Intended to beApplied over Gypsum Board:8.5.1 If the wood veneer or panel product is intended to beapplied over gypsum board, the specimens shall consist of theveneer or panel product mounted on58 in. (15.9 mm) Type Xthick gypsum board complying with Specification C13
38、96/C1396M. The gypsum board shall not be required to bemounted on studs or battens. Mount the specimens on theledges of the Test Method E84 furnace without using additionalmeans of support.8.5.2 The adhesive used to attach the veneer or panelproduct to the gypsum board shall be that specified by the
39、manufacturer and applied in accordance with manufacturerapplication instructions.8.6 Laminated Products Factory-Produced with a WoodSubstrate:8.6.1 If the factory-produced laminated product includes afacing or wood veneer applied over a wood substrate, thespecimens shall comply with 8.6.1.1 as well
40、as with 8.6.1.2.8.6.1.1 The specimens shall consist of the finished product,namely the combination of the facing, panel product or woodveneer, the adhesive used and the specific wood substrate thatwill be used. Mount the specimens on the ledges of the TestMethod E84 furnace without using additional
41、means of sup-port.8.6.1.2 The adhesive used to attach the facing, panelproduct, or wood veneer to the wood substrate shall be thatspecified by the manufacturer and applied in accordance withmanufacturers application instructions.8.7 Wood Veneers or Facings Intended to be Applied on Siteover a Wood S
42、ubstrateIf the laminated product is notfactory-produced but the wood veneer or facing is to be appliedon-site over a wood substrate, the specimens shall comply withthe requirements of Practice E2404.8.8 Wood Shingles and Shakes:8.8.1 Wood shingles and shakes shall be mounted accordingto manufacturer
43、s instructions on the “A” face of nominal1516in. panels of untreated plywood with a face veneer of Douglasfir and with the thicker butt ends of each shingle or shakeoriented towards one end of the plywood panel. The plywoodshall comply with NIST Voluntary Product Standard PS 1-07.The plywood shall c
44、arry the grade stamp of either APA-TheEngineered Wood Association6or TECO7, indicating that theplywood has been graded PS 1-07 A-C and is for exteriorexposure. Alternatively, the plywood shall be permitted to bestamped as conforming to CSAO121 (Standard for Douglas firplywood).8.8.2 The specimens sh
45、all be butted end-to end, with thethicker butt-ends of the shingles oriented towards the fire endof the furnace, and mounted on the ledges of the Test MethodE84 furnace without using additional means of support.8.8.3 If it can be demonstrated that the method described in8.8.1 of this practice is not
46、 applicable to a particular type ofwood shingle or shake, another mounting method, based on themanufacturers installation instructions, shall be permitted tobe used. This information shall be included in the report.8.9 Moisture Content Specimens:6Information available from APA, The Engineered Wood A
47、ssociation, 7011South 19th, Tacoma, WA, 98466.7Information available from TECO, 5650 Terra Court, Sun Prairie, WI, 53590.E2579 1538.9.1 A minimum of three specimens for the moisturecontent determination shall be obtained from either the originalstock of the test material at the time of specimen prep
48、aration orfrom Test Method E84 fire test samples prior to conducting thefire test (see also Note 1).NOTE 1The preparation of the specimens for the determination of theoven dry moisture content of the select-grade red oak calibration materialis discussed in A2.1.1 of Test Method E84.8.9.2 Once the sp
49、ecimens of the test material for theoven-dry moisture content determination are cut from the testmaterial or test specimen, the specimens shall immediately beattached to or placed on the Test Method E84 fire test specimenand remain in the same room as the Test Method E84 fire testspecimen until the “original mass” is recorded at the time of thefire test.9. Testing of Specimens9.1 Except as noted in 9.2 and 9.3, all testing shall beconducted using the methodology described in Test MethodE84.9.2 The integer moisture content of the test specimen shallbe determined
