ASTM_D_3652_-_D_3652M_-_01_2012.pdf

Designation:D3652/D3652M01(Reapproved 2012)Standard Test Method forThickness of Pressure-Sensitive Tapes1This standard is issued under the fixed designation D3652/D3652M;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.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This test method covers the determination of the thick-ness of pressure-sensitive tapes at standard conditions.1.2 This test method is intended to replace AFERA 40062and PSTC 33.21.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 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:3D996 Terminology of Packaging and Distribution Environ-mentsD2904 Practice for Interlaboratory Testing of a Textile TestMethod that Produces Normally Distributed Data(With-drawn 2008)4D2906 Practice for Statements on Precision and Bias forTextiles(Withdrawn 2008)4D3715/D3715M Practice for Quality Assurance of Pressure-Sensitive TapesD4332 Practice for Conditioning Containers,Packages,orPackaging Components for TestingE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or Process3.Terminology3.1 DefinitionsTerms found in Terminology D996 shallapply.3.2 Definitions of Terms Specific to This Standard:3.2.1 thickness(caliper,gage)the perpendicular distancebetween opposite surfaces of a tape expressed in mils 1/1000in.;usually measured under slight pressure with a specialgage.4.Significance and Use4.1 Thickness is an important property of tapes,and thisdimension is important for certain end uses.This test method isuseful for quality control and for acceptance testing forconformance to specifications.5.Apparatus5.1 Cailper Gage,with the following requirements:5.1.1 Two plain faces,the smaller of which is circular and 8to 16 mm 0.32 to 0.64 in.in diameter.The faces shall beparallel to within 0.005 mm 0.0002 in.and constrained tomove apart along an axis perpendicular to them.5.1.2 When the specimen is placed between the faces,theforce should be such that the specimen shall be under a 50 to60 kPa 7.3 to 8.7 psi.5.1.3 The distance between the graduations on the dial shallbe such as to permit estimating the thickness to at least 0.002mm 0.0001 in.6.Sampling6.1 Acceptance SamplingSampling shall be in accordancewith Practice D3715/D3715M.6.2 Sampling for Other PurposesThe sampling and thenumber of test specimens depends on the purpose of testing.Practice E122 is recommended.It is common to test at leastfive specimens of a particular tape.Test specimens should betaken from several rolls of a tape and,whenever possible,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 April 1,2012.Published May 2012.Originallyapproved in 1978.Last previous edition approved in 2006 as D3652/D3652M 01(2006).DOI:10.1520/D3652_D3652M-01R12.2AFERA:Association des Fabricants de Rubans Auto-Adhesif;PSTC:PressureSensitive Tape Council(U.S.A.).3For 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.4The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 among several production runs of a tape.Strong conclusionsabout a specific property of a tape cannot be based on tests ofa single unit(roll)of product.7.Test Specimens7.1 The specimen width shall be greater than the diameter ofthe foot of the caliper gage and at least 50 mm 2 in.long.Itshall be free of wrinkles and creases.7.2 Unwind and discard at least three but no more than sixwraps of tape from the sample roll before taking specimens fortesting.7.3 Unless otherwise specified,remove one specimen persample roll for each test performed.Remove the specimenfrom a freely rotating roll at the rate of approximately 500 to750 mm 20 to 30 in./s.Where width or other factors make itimpossible to remove the specimen at the prescribed rate,remove it at a rate as close