1、Designation: E2579 11 E2579 12 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
2、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. Scope1.1 This practice describes procedures for specimen preparati
3、on and mounting when testing wood products to assess flamesspread and smoke development as surface burning characteristics using Test Method E84.1.2 Testing is conducted with Test Method E84.1.3 This practice does not provide pass/fail criteria that can be used as a regulatory tool.1.4 Use the value
4、s stated in inch-pound units as the standard, in referee decisions. The values in the SI system of units are givenin parentheses, for information only; see IEEE/ASTM SI-10 for further details.1.5 This fire standard cannot be used to provide quantitative measures.1.6 Fire testing of products and mate
5、rials is inherently hazardous, and adequate safeguards for personnel and property shall beemployed in conducting these tests. Fire testing involves hazardous materials and equipment. This standard gives instructions onspecimen preparation and mounting, but the fire-test-response method is given in T
6、est Method E84. See also Section 10.1.7 The text of this standard references notes and footnotes which provide explanatory materials. These notes and footnotesshall not be considered requirements of the standard.1.8 This standard does not purport to address all of the safety concerns, if any, associ
7、ated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C1396/C1396M Specification for Gypsum BoardD9 Terminology Rela
8、ting to Wood and Wood-Based ProductsD1038 Terminology Relating to Veneer and PlywoodD1554 Terminology Relating to Wood-Base Fiber and Particle Panel MaterialsE84 Test Method for Surface Burning Characteristics of Building MaterialsE176 Terminology of Fire StandardsE2404 Practice for Specimen Prepara
9、tion and Mounting of Wall or Ceiling Coverings to Assess Surface Burning CharacteristicsIEEE/ASTM SI-10 International System of Units (SI): The Modern Metric System2.2 CSA Standard:3CSA O121 Douglas Fir Plywood2.3 HPVA Standard:4ANSI/HPVA HP-1 American National Standard for Hardwood and Decorative P
10、lywood2.4 NIST Standard:5Voluntary Product Standard PS 1-07 Structural Plywood1 This practice is under the jurisdiction of ASTM Committee E05 on Fire Standards and is the direct responsibility of Subcommittee E05.22 on Surface Burning.Current edition approved Oct. 1, 2011Dec. 15, 2012. Published Oct
11、ober 2011December 2012. Originally approved in 2007. Last previous edition approved in 20072011as E2579-07.-11. DOI: 10.1520/E2579-11.10.1520/E2579-12.2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM S
12、tandardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from Canadian Standards Association (CSA), 178 Rexdale Blvd., Toronto, ON Canada M9W 1R3.4 Available from the Hardwood Plywood and Veneer Association, 1825 Michael Faraday Dr., Reston, VA 20190.5
13、 Available from National Institute of Standards and Technology (NIST), 100 Bureau Dr., Stop 3460, Gaithersburg, MD 20899-3460.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becau
14、seit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Ba
15、rr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Terminology3.1 DefinitionsFor definitions of terms used in this practice refer to the terminology contained in Terminologies E176, D9,D1038, D1554, and ANSI/HPVA HP-1.4. Summary of Practice4.1 This practice describes pr
16、ocedures for specimen preparation and mounting when testing wood products to assess flamespread and smoke development as surface burning characteristics using Test Method E84.5. Significance and Use5.1 Solid board, lumber and timber products (including solid boards, lumber, timber, fingerjoined lumb
17、er, glulam, laminatewood, laminated veneer lumber and parallel strand lumber products); panel products (including fibreboard, hardboard, orientedstrandboard, waferboard and plywood panel products); decorative wood products and shingles and shakes used as interior wall andceiling finish are often eva
18、luated with Test Method E84 to comply with code requirements. This practice describes specimenpreparation and mounting procedures for such materials and systems.5.2 If it can be demonstrated that none of the methods described in this practice are applicable to a particular product, othermounting met
19、hods shall be permitted to be used. This information shall be included in the report.5.3 The limitations for this procedure are those associated with Test Method E84.6. Conditioning6.1 The test specimens shall be conditioned as described in the section on specimen conditioning in Test Method E84.7.
20、Test Specimens7.1 The test specimen sizes shall comply with those described in the test specimen section of Test Method E84. The testspecimens shall be butted against the vent end of the fire test chamber and shall consist of a continuous, unbroken length, or ofsections joined or butted end-to-end.
21、The test specimens 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 test specimens shall be prepared as described in Section 8.8. Test Specimen Preparation8.1 General:8.1.1 Wood pro
22、ducts shall be representative of the materials which the test is intended to examine.8.1.2 The preparation of test specimens of wood products treated by pressure impregnation or by other means shall be identicalto that specified for untreated wood products.8.2 Solid Boards, Lumber, Timber, Fingerjoi
23、ned Lumber, Glulam, Laminate Wood, Laminated Veneer Lumber and ParallelStrand Lumber Products:8.2.1 General construction outline for solid board, lumber, timber, fingerjoined lumber, glulam, laminate wood, laminatedveneer lumber and parallel strand lumber decks is shown in Fig. 1.8.2.2 The thickness
24、 of the test material pieces shall be representative of the material which the test is intended to examine.8.2.3 Batten strips shall be nominal 1 by 316 in. (25 by 5 mm) and shall be constructed of metal.FIG. 1 General Construction Outline for Solid Board, Lumber, Timber, Fingerjoined Lumber, Glulam
25、, Laminate Wood, Laminated VeneerLumber and Parallel Strand Lumber DecksE2579 1228.2.4 Use either cement coated nails or No. 8, 10 or 12 wood screws, two per solid board, lumber, timber, fingerjoined lumber,glulam, laminate wood, laminated veneer lumber and parallel strand lumber piece per batten, a
26、nd of sufficient length to penetratethrough the battens and not less than 75 % of the test material.8.2.5 For outside edges, use the longest lumber, timber, fingerjoined lumber, glulam, laminate wood laminated veneer lumberparallel strand lumber strips available. If shorter than 96 in. (2.44 m), use
27、 6 in. (152 mm) long batten strips. Do not use lumber,timber, fingerjoined lumber, glulam, laminate wood, laminated veneer lumber, or parallel strand lumber strips less than 24 in. (610mm) long on outside edges.8.2.6 Allow 6 in. (152 mm) minimum distance between other joints on adjacent lumber, timb
28、er, fingerjoined lumber, glulam,laminate wood laminated veneer lumber parallel strand lumber strips.8.2.7 While fastening with nails or screws, use cabinet clamps or other suitable means to ensure there are no cracks, or gapsbetween the lumber, timber, fingerjoined lumber, glulam, laminate wood lami
29、nated veneer lumber parallel strand lumber strips inthe deck surface.8.2.8 Mount the specimens on the ledges of the Test Method E84 furnace without using additional means of support.8.3 Panel Products with Suffcient Structural Integrity to Support Themselves:8.3.1 Panel products with sufficient stru
30、ctural integrity to support themselves shall be cut to the width of the fire test chamber,butted end-to-end, and mounted on the ledges of the Test Method E84 furnace without using additional means of support.8.3.2 Panel products 14 in. (6.3 mm) or less in thickness not intended to be applied over gy
31、psum board or a wood substrate shallbe cut to the width of the fire test chamber, butted end-to-end, and mounted on the ledges of the Test Method E84 furnace withoutadditional means of support if they have sufficient integrity to support themselves within the test chamber without sagging 116 in.(1.5
32、 mm) or more when measured at the centre-line of the test chamber.8.4 Wood Veneers and Panel Products with Insuffcient Structural Integrity to Support Themselves:8.4.1 Wood veneers and panel products with insufficient structural integrity to support themselves shall be cut to the width ofthe fire te
33、st chamber, butted end-to-end and supported within the fire test chamber by steel rods not more than 18 in. (3 mm) indiameter spanning the width of the tunnel. The rods shall be placed approximately 2 in. (51-mm) from each end of each panel andat approximately 24 in. (610 mm) intervals starting with
34、 the fire end of each panel.8.4.2 Wood veneers and panel products 18 in. (3 mm) or less in thickness not intended to be applied over gypsum board or awood substrate, and with insufficient integrity to support themselves within the test chamber without sagging 116 in. (1.5 mm) ormore when measured at
35、 the centre-line of the test chamber, shall be cut to the width of the fire test chamber, butted end-to-end,and supported within the test chamber by steel rods not more than 14 in. (6.3 mm) in diameter spanning the width of the tunnel.The rods shall be placed approximately 2 in. (51 mm) from each en
36、d of each panel and at approximately 24 in. (610 mm) intervalsstarting at the fire end of each panel.8.5 Wood Veneers and Panel Products Intended to be Applied over Gypsum Board:8.5.1 If the wood veneer or panel product is intended to be applied over gypsum board, the specimens shall consist of the
37、veneeror panel product mounted on 58 in. (15.9 mm) Type X thick gypsum board complying with Specification C1396/C1396M. Thegypsum board shall not be required to be mounted on studs or battens. Mount the specimens on the ledges of the Test Method E84furnace without using additional means of support.8
38、.5.2 The adhesive used to attach the veneer or panel product to the gypsum board shall be that specified by the manufacturerand applied in accordance with manufacturer application instructions.8.6 Wood Veneers and Panel Products Intended to be Applied over Laminated Products Factory-Produced with a
39、WoodSubstrate:8.6.1 If the veneer or panel product is intended to be factory-produced laminated product includes a facing or wood veneerapplied over a wood substrate, the specimens shall consist of the veneer or panel product mounted on the “A” face of nominal 1532in. untreated plywood with a face v
40、eneer of Douglas fir. The plywood shall comply with NISTcomply with 8.6.1.1 VoluntaryProduct Standard PS 1-07. The plywood shall carry the grade stamp of either APA-The Engineered Wood Association or TECO, indicating that the plywood has been graded PS 1-07 A-C and is for exterior exposure. Alternat
41、ively, the plywood shall bepermitted to be stamped as conforming to CSAas well as with 8.6.1.2O121 (Standard for Douglas fir plywood). Mount thespecimens on the ledges of the Test Method .E84 furnace without using additional means of support.8.6.1.1 The specimens shall consist of the finished produc
42、t, namely the combination of the facing, panel product or wood veneer,the adhesive used and the specific wood substrate that will be used. Mount the specimens on the ledges of the Test Method E84furnace without using additional means of support.8.6.1.2 The adhesive used to attach the facing, panel p
43、roduct, or wood veneer to the wood substrate shall be that specified bythe manufacturer and applied in accordance with manufacturers application instructions.8.6.2 The adhesive used to attach the veneer or panel product to the wood substrate shall be that specified by the manufacturerand applied in
44、accordance with manufacturers application instructions.8.7 Wood Veneers or Facings Intended to be Applied on Site over a Wood SubstrateIf the laminated product is notfactory-produced but the wood veneer or facing is to be applied on-site over a wood substrate, the specimens shall comply withthe requ
45、irements of Practice E2404.E2579 1238.8 Wood Shingles and Shakes:8.8.1 Wood shingles and shakes shall be mounted according to manufacturers instructions on the “A” face of nominal 1516 in.panels of untreated plywood with a face veneer of Douglas fir and with the thicker butt ends of each shingle or
46、shake orientedtowards one end of the plywood panel. The plywood shall comply with NIST Voluntary Product Standard PS 1-07. The plywoodshall carry the grade stamp of either APA-The Engineered Wood Association6 or TECO7 , indicating that the plywood has beengraded PS 1-07 A-C and is for exterior expos
47、ure. Alternatively, the plywood shall be permitted to be stamped as conforming toCSA O121 (Standard for Douglas fir plywood).8.8.2 The specimens shall be butted end-to end, with the thicker butt-ends of the shingles oriented towards the fire end of thefurnace, and mounted on the ledges of the Test M
48、ethod E84 furnace without using additional means of support.8.8.3 If it can be demonstrated that the method described in 8.7.18.8.1 of this practice is not applicable to a particular type ofwood shingle or shake, another mounting method, based on the manufacturers installation instructions, shall be
49、 permitted to beused. This information shall be included in the report.9. Testing of Specimens9.1 All testing shall be conducted using the methodology described in Test Method E84.10. Operator Safety10.1 The primary concerns for operator safety are associated with the fire-test-response procedure, Test Method E84, and notwith the specimen preparation procedure. Safety recommendations are included in Test Method E84.11. Report11.1 Report a detailed description of the system being tested.11.2 Report a detailed description of the specimen preparation method used
