1、Designation: D3652/D3652M 01 (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
2、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 determ
3、ination 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 equ
4、ivalents; 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
5、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 Textil
6、e TestMethod that Produces Normally Distributed Data4D2906 Practice for Statements on Precision and Bias forTextiles4D3715/D3715M Practice for Quality Assurance ofPressure-Sensitive TapesD4332 Practice for Conditioning Containers, Packages, orPackaging Components for TestingE122 Practice for Calcula
7、ting Sample Size to Estimate,With Specified Precision, the Average for a Characteristicof a Lot 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 opposi
8、te 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 t
9、esting 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 axi
10、s 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
11、. 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. Tes
12、t specimens should be1This 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
13、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
14、 of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.4Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Un
15、ited States.taken from several rolls of a tape and, whenever possible,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 o
16、fthe 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
17、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 to 500 mm 20 in./s as possible.8. Conditioning8.1 Co
18、ndition sample rolls of tape in the standard condi-tioning atmosphere as described in Practice D4332 for a periodof not less than 24 h. Test at these conditions.9. Procedure9.1 Zero the instrument per manufacturers instructions.9.2 Place the specimen under the foot of the caliper gage,adhesive side
19、up, and lower the the presser foot gently upon thesurface of the tape. Record the reading of the dial to the nearest0.002 mm 0.0001 in. one second after lowering the foot.Make three readings for each specimen. Average the readingsfor the thickness value of the specimen.9.3 To measure double-coated t
20、apes with liner, measure thethickness of the specimen with one liner in place as in 9.2.Mark the liner where readings were made. Remove the linerand repeat the measurement as in 9.2 on the liner in the markedpositions. Average both sets of readings; subtract the smalleraverage from the larger averag
21、e, and record the difference asthe thickness.10. Report10.1 The report shall include the following:10.1.1 Statement that this test method was used and indicateany deviations from the test method as written.10.1.2 Thickness in milllimetres to the nearest 0.002 mminches to the nearest 0.0001 in.10.1.3
22、 Complete identification of each roll tested includingtape source, manufacturers code number and form.11. Precision and Bias11.1 SummaryThe difference between two single obser-vations should not exceed 6.8 % of the average of the twoobservations in 95 out of 100 cases when both observations aretaken
23、 by the same well-trained operator using the same piece oftest equipment and specimens randomly drawn from the samesample of material. Larger differences may occur under allother circumstances. The true value of thickness can only bedefined in terms of a specific test method. Within this limita-tion
24、, Test Method D3652M has no known bias. The basis forthis summary and for evaluations made under other conditionsare given in 11.2 through 11.5.11.2 Interlaboratory Test Data5An interlaboratory studywas made in 1980 in which randomly drawn samples of twomaterials were tested in each of six laborator
25、ies. Two operatorsin each laboratory each tested three specimens from each ofthree rolls of each material. The components of variance forthickness results expressed as coefficients of variation werecalculated to be as follows:Specimens ofthe SameMaterialSpecimens ofDifferentMaterialSingle-operator c
26、omponent 1.7 % of the average 8.8 % of the averageWithin-laboratory compo-nent3.5 % of the average 3.5 % of the averageBetween-laboratory com-ponent11.0 % of the average 6.7 % of the averageReplication component 1.8 % of the average 1.8 % of the average.NOTE 1The calculations for coefficient of vari
27、ation and other statis-tics found in subsequent sections of this statement are described inPractice D2906 and Annex A3 of Practice D2904.11.3 Critical DifferencesFor the components of variancereported in 11.2, two averages of observed values should beconsidered significantly different at the 95 % pr
28、obability levelif the difference equals or exceeds the critical differencesshown in Table 1.11.4 Confidence LimitsFor the components of variancereported in 11.2, single averages of observed values have the95 % confidence limits shown in Table 2.NOTE 2The tabulated values of the critical differences
29、and confidencelimits should be considered to be a general statement particularly withrespect to between-laboratory precision. Before a meaningful statementcan be made about two specific laboratories, the amount of statistical biasbetween them, if any, must be established with each comparison beingba
30、sed on recent data obtained on specimens randomly drawn from onesample of the material to be evaluated11.5 BiasNo justifiable statement can be made on the biasof Test Method D3652 for testing thickness since the true valuecannot be established by an accepted referee method.5Supporting data are avail
31、able from ASTM International Headquarters. RequestRR: D-10-1002.TABLE 1 Critical Difference, % of Grand Average for theConditions NotedA,BNumber of Observations inEach AverageSingle-OperatorPrecisionWithin-LaboratoryPrecisionBetween-LaboratoryPrecisionSpecimens of theSame Material:1 6.8 11.8 35.85 5
32、.2 10.9 32.910 4.9 10.7 32.1Specimens of DifferentMaterial:1 24.9 26.7 32.65 24.5 26.3 32.310 24.4 26.3 32.2AThe critical differences were calculated using t = 1.960 which is based oninfinite degrees of freedom.BTo convert the values of the critical differences to units of measure, multiply theavera
33、ge of the two specific sets of data being compared by the critical differencesexpressed as a decimal fraction.D3652/D3652M 01 (2012)212. Keywords12.1 caliper; gage; pressure-sensitive tape; thicknessASTM International takes no position respecting the validity of any patent rights asserted in connect
34、ion with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsibl
35、e technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful cons
36、ideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 B
37、arr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM webs
38、ite(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 2 Width of 95 % Confidence Limits, % of the GrandAverage for the Conditions NotedA,BNumber of Observations inEach AverageSingle-OperatorPrecisionWithin-LaboratoryP
39、recisionBetween-LaboratoryPrecisionSpecimens of theSame Material:1 64.8 68.3 625.35 63.7 67.7 625.310 63.5 67.6 622.7Specimens of DifferentMaterial:1 617.6 618.9 623.65 617.4 618.6 622.810 617.3 618.6 622.8AThe confidence limits are calculated using t = 1.960 which is based on infinitedegrees of freedom.BTo convert the values of confidence limits to units of measure, multiply theaverage of the specific set of data that is of interest by the confidence limitsexpressed as a decimal fraction.D3652/D3652M 01 (2012)3
