ASTM_D_5651_-_13.pdf

Designation:D565113Standard Test Method forSurface Bond Strength of Wood-Base Fiber and ParticlePanel Materials1This standard is issued under the fixed designation D5651;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.Scope1.1 This test method is a measure of the cohesive bondstrength of the fibers,or particles,on the surface of wood-basefiber and particle panels(for example,particleboard andmedium-density fiberboard)in the direction perpendicular tothe plane of the panel.1.1.1 To determine the internal cohesive bond strength ofwood-base fiber and particle panels,use Section 11 of TestMethods D1037.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 This test method 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.2.Referenced Documents2.1 ASTM Standards:2D1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel MaterialsE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or Process3.Significance and Use3.1 This test method provides a measure of the bond qualityof the fibers,or particles,at the surface of wood-base fiber andparticle panel materials including particleboard,medium-density fiberboard(MDF)and oriented strand board(OSB).Surface bond strength is a measure of the strength andresistance to delamination of the bond between overlay mate-rials and panel surfaces and is an important consideration whenthese overlay materials,such as wood veneers,saturatedpapers,or plastic overlays,are to be bonded to the panelsurface during secondary manufacturing.4.Apparatus4.1 The apparatus required for this test method is shown inFig.1.4.1.1 The test cylinder shall be 28.7 mm(1.13 in.)indiameter,providing a test surface area of 645.2 mm2(1 in.2),and the cylinder length shall be approximately 25 mm(1 in.).One face of this cylinder shall be smoothly finished for gluing,while a threaded hole shall be placed in the center of theopposite face and also aligned perpendicular to the gluing face.4.1.2 The lower test fixture shall consist of a 6-mm(0.25-in.)steel plate mounted in a plane perpendicular to thedirection of test.The mounting shall be such that this plate isheld rigidly and there is at least 60-mm(2.36-in.)clearancebeneath it to permit entry of the test assembly.This plate shallhave a hole drilled in the center that is 2 mm(0.08 in.)largerthan the diameter of the test cylinder.4.1.3 The upper arm of the test machine shall have athreaded means of engaging the threaded hole in the top of thetest cylinder so as to apply a force that shall move the testcylinder in a direction perpendicular to the lower test fixtureand surface of the test specimen.A self-aligning joint(univer-sal joint)is required in the upper arm of the test fixture.4.1.3.1 Alternate connecting devices such as a swivel andhook or ball and socket,are allowed for fixing the test cylinderto the upper arm of the test machine.If alternate connectingdevices are used,this shall be noted on the test report.5.Sampling and Test Specimens5.1 A minimum of three tests from each panel surface to beconsidered shall be made to determine the surface bondstrength of a single panel.Panels for testing shall be selected ina manner consistent with the sampling procedures specified inPractice E122.5.2 The test specimen shall be a minimum of 75 mm(3 in.)square.The minimum specimen thickness required for this testis 13 mm(0.5 in.).If necessary,laminate two or morethicknesses of the panel to build the total thickness to theminimum required.1This test method is under the jurisdiction of ASTM Committee D07 on Woodand is the direct responsibility of Subcommittee D07.03 on Panel Products.Current edition approved Aug.1,2013.Published September 2013.Originallyapproved in 1995.Last previous edition approved in 2008 as D5651 95a(2008).DOI:10.1520/D5651-13.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 6.Conditioning6.1 The physical and mechanical properties of wood-basepanel materials depend on the moisture content at time of test.Therefore,condition material for surface bond strength testingto constant weight and moisture content in a conditioningchamber maintained at a relat