ASTM_D_6463_-_D_6463M_-_06_2012.pdf

Designation:D6463/D6463M06(Reapproved 2012)Standard Test Method forTime to Failure of Pressure Sensitive Articles UnderSustained Shear Loading1This standard is issued under the fixed designation D6463/D6463M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers the ability of a pressure sensi-tive article(for example,tape,label,sticker,etc.)to remainadhered to a stainless steel panel under a constant load appliedparallel to the bonding surface of the pressure sensitive article.1.2 Values stated in either SI or inch-pound units are to beregarded separately as standard.The values stated in eachsystem may not be exact equivalents,therefore,each systemmust be used independently without combining values in anyway.1.3 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 prior to use.2.Referenced Documents2.1 ASTM Standards:2A666 Specification for Annealed or Cold-Worked AusteniticStainless Steel Sheet,Strip,Plate,and Flat BarD907 Terminology of AdhesivesD3654/D3654M Test Methods for Shear Adhesion ofPressure-Sensitive TapesD5750/D5750M Guide for Width and Length of Pressure-Sensitive TapeE171 Practice for Conditioning and Testing Flexible BarrierPackagingE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 Many of the terms found in this test method are definedin Terminology D907.4.Summary of Test Method4.1 This test method consists of bonding a standard area ofa pressure sensitive article to a stainless steel panel.Thebonded construction is allowed to dwell in a constant tempera-ture and humidity environment for 30 min.The construction isthen mounted vertically.A standard mass of 500 g 1.1 lb isattached to the pressure sensitive article and allowed to actuntil the construction separates or until 3000 min elapse.Ifthere is no separation after 3000 min,the test is repeated on afresh specimen with a mass of 1000 g 2.2 lb and allowed toact until separation occurs or until 3000 min elapse.If noseparation occurs,perform Procedure C of Test MethodD3654/D3654M for shear holding power to stainless steel at49C 120F.The test result is the time in minutes toseparation.5.Significance and Use5.1 This test method measures the cohesive strength of theadhesive on a pressure sensitive article.The time to failure canpredict end use properties of pressure sensitive articles such asedge ooze from cold flow;trimming,slitting and die cuttingquality;telescoping in tapes;ability to seal packages;andvertical holding power.5.2 This test method is suitable for quality control,devel-opment and applications testing.5.3 If the adhesive is not already coated,the adhesive can becoated on smooth,clear polyester(PET)film backing 0.05 mm0.002 in.thick.The recommended dry adhesive thickness is0.025 mm 0.001 in.5.4 Humidity has a strong effect on time to failure for manypressure sensitive articles.Therefore,humidity should becontrolled in accordance with 8.1.2.1This test method is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.14 on Tape andLabels.Current edition approved May 1,2012.Published May 2012.Originallyapproved in 1999.Last previous edition approved in 2006 as D6463 06.DOI:10.1520/D6463_D6463M-06R12.2For 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.Apparatus6.1 Specimen Cutter3,4 The specimen cutter shall holdtwo single-edge razor blades in parallel planes,a precisedistance apart,to form a cutter of exact specimen width.Acutter of 12 mm 0.5 in.cutting width,shall be available orappropriate alternates,that will not cause edge damage.6.1.1 The 12 mm 0.5 in.cutter shall consist of a 12 mm0.5 in.thick by 200 mm 8 in.length of aluminum bar stock12 mm 0.5 in.wide.The edges for about 125 mm 5 in.fromone end shall be rounded slightly to form a handle.The widthof the bar for 75 mm 3 in.shall be narrowed to exactly 12 mm0.5 in minus the thickness of a single-edge razor(one of twoused as cutting edges).The razor shall be held in position usingside plates.The end of the cutter shall be cut away at a 45angle to expose the cutting edges at one end of the blades.Theedges shall be separated by 12