1、Designation: D 3652/D 3652M 01 (Reapproved 2006)Standard Test Method forThickness of Pressure-Sensitive Tapes1This standard is issued under the fixed designation D 3652/D 3652M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the y
2、ear of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon (e) 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 d
3、etermination 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 exac
4、t 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
5、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:3D 996 Terminology of Packaging and Distribution Environ-mentsD 2904 Practice for Interlaboratory Testing of a
6、 Textile TestMethod that Produces Normally Distributed DataD 2906 Practice for Statements on Precision and Bias forTextilesD 3715/D 3715M Practice for Quality Assurance ofPressure-Sensitive TapesD 4332 Practice for Conditioning Containers, Packages, orPackaging Components for TestingE 122 Practice f
7、or Calculating Sample Size to Estimate,With a Specified Tolerable Error, the Average for aCharacteristic of a Lot or Process3. Terminology3.1 DefinitionsTerms found in Terminology D 996 shallapply.3.2 Definitions of Terms Specific to This Standard:3.2.1 thickness (caliper, gage)the perpendicular dis
8、tancebetween 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 a
9、nd 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
10、 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
11、0.002mm 0.0001 in.6. Sampling6.1 Acceptance SamplingSampling shall be in accordancewith Practice D 3715/D 3715M.6.2 Sampling for Other PurposesThe sampling and thenumber of test specimens depends on the purpose of testing.Practice E 122 is recommended. It is common to test at leastfive specimens of
12、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, 2006. Publish
13、ed April 2006. Originallyapproved in 1978. Last previous edition approved in 2001 as D 3652/D 3652M 01.2AFERA: 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 Custome
14、r Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.among several production runs of a tap
15、e. 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 Unw
16、ind 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 m
17、m 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 Condition sample rolls of tape in the standard condi-tioning atmosphere as described in Practice D 4332 for ap
18、eriod of 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 up, and lower the the presser foot gently upon thesurface of the tape. Record the reading of the dial to th
19、e 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 tapes with liner, measure thethickness of the specimen with one liner in place as in 9.2.Mark the liner wher
20、e 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 average, and record the difference asthe thickness.10. Report10.1 The report shall include the following:10.1.1 S
21、tatement 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 Complete identification of each roll tested includingtape source, manufacturers code number and form.11. P
22、recision 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 by the same well-trained operator using the same piece oftest equipment and specimens randomly drawn from
23、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, Test Method D 3652M has no known bias. The basis forthis summary and for evaluations made under other con
24、ditionsare given in 11.2 through 11.5.11.2 Interlaboratory Test Data4An interlaboratory studywas made in 1980 in which randomly drawn samples of twomaterials were tested in each of six laboratories. Two operatorsin each laboratory each tested three specimens from each ofthree rolls of each material.
25、 The components of variance forthickness results expressed as coefficients of variation werecalculated to be as follows:Specimens ofthe SameMaterialSpecimens ofDifferentMaterialSingle-operator component 1.7 % of the average 8.8 % of the averageWithin-laboratory compo-nent3.5 % of the average 3.5 % o
26、f 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 variation and other statis-tics found in subsequent sections of this statement are described inPractice D 2906
27、 and Annex A3 of Practice D 2904.11.3 Critical DifferencesFor the components of variancereported in 11.2, two averages of observed values should beconsidered significantly different at the 95 % probability levelif the difference equals or exceeds the critical differencesshown in Table 1.11.4 Confide
28、nce 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 and confidencelimits should be considered to be a general statement particularly withrespect to between-
29、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 beingbased on recent data obtained on specimens randomly drawn from onesample of the material to be evaluated11
30、.5 BiasNo justifiable statement can be made on the biasof Test Method D 3652 for testing thickness since the truevalue cannot be established by an accepted referee method.4Supporting data are available from ASTM International Headquarters. RequestRR: D-10-1002.TABLE 1 Critical Difference, % of Grand
31、 Average for theConditions NotedA,BNumber of Observations inEach AverageSingle-OperatorPrecisionWithin-LaboratoryPrecisionBetween-LaboratoryPrecisionSpecimens of theSame Material:1 6.8 11.8 35.85 5.2 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、 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 theaverage of the two specific sets of data being compared by the critical differencesexpressed as a decimal fr
33、action.D 3652/D 3652M 01 (2006)212. Keywords12.1 caliper; gage; pressure-sensitive tape; thicknessASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determ
34、ination 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 responsible technical committee and must be reviewed every five years andif not revised, either reapproved or w
35、ithdrawn. 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 consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that
36、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 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (s
37、ingle 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 website(www.astm.org).TABLE 2 Width of 95 % Confidence Limits, % of the GrandAverage for the Conditions N
38、otedA,BNumber of Observations inEach AverageSingle-OperatorPrecisionWithin-LaboratoryPrecisionBetween-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 con
39、fidence 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.D 3652/D 3652M 01 (2006)3
