1、Designation: D 6840 02 (Reapproved 2007)Standard Test Method forEffect of Drycleaning on Buttons1This standard is issued under the fixed designation D 6840; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、 A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method is a means of determining the effect ofdrycleaning on certain physical attributes of buttons. The testmethod appli
3、es to buttons made from plastics, natural materi-als, cast metal, stamped metal and electroplated plastic.1.1.1 The observed attributes of buttons made from plasticand natural materials include: color change, color transfer,solubility, swelling, and loss of finish.1.1.2 The observed attributes of bu
4、ttons made of metal andelectroplated buttons include: color change, oxidation andcolor transfer.1.2 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 p
5、ractices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 123 Terminology Relating to TextilesD 2724 Test Methods for Bonded, Fused, and LaminatedApparel FabricsD 3136 Terminology Relating to Care Labeling forApparel,Textile, Home F
6、urnishing, and Leather ProductsD 5497 Terminology Relating to Buttons3. Terminology3.1 DefinitionsFor definitions of terms used in this testmethod, refer to Terminologies D 123, D 5497, and D 3136.4. Summary of Test Method4.1 Specimens are sewn onto fabric and subjected to com-mercial dry cleaning.
7、The dry cleaned specimens are measuredand visually compared to an original specimen.5. Significance and Use5.1 This test method is useful for determining the change tothe listed properties (see 1.1.1 and 1.1.2) and if the changes areacceptable for the intended use. This test may be used foracceptanc
8、e testing of commercial shipments of buttons.5.2 If there are differences of practical significance betweenthe reported test results for two laboratories (or more), com-parative tests should be performed to determine if there is astatistical bias between them. As a minimum, test samplesshould be use
9、d that are as homogeneous as possible, that aredrawn from the material from which the disparate test resultswere obtained, and that are randomly assigned in equalnumbers to each laboratory for testing. The test results for thetwo laboratories should be compared using a statistical test forunpaired d
10、ata, at a probability level chosen prior to the testingseries. If a bias is found, either its cause must be found andcorrected, or future test results for that material must beadjusted in consideration of the known bias.6. Apparatus6.1 The drycleaning apparatus shall be as specified in TestMethod D
11、2724.6.2 AATCC Multifiber Test Fabric No. 10 or FA.6.3 Undyed Cotton Twill Cloth, weighing 270 6 70 g/m (0.66 0.15 lb/yd).6.4 Measuring DeviceA set of measuring calipers ormicrometer is required to determine the dimensions of thebuttons before and after testing.7. Sampling, Test Specimens, and Test
12、Units7.1 Laboratory SampleRandomly select approximately100 samples, from the same carton and from boxes within thatcarton, that adequately represent the material from which testspecimens may be chosen.7.2 Test SpecimenRandomly select 10 to 20 buttons fromthe laboratory sample for testing. If the tes
13、t specimens aresubmitted for pre-production approval, testing of 10 buttons isacceptable. Retailers can test the garment with the buttonsattached. It is not necessary to place garment in specimen bag.1This test method is under the jurisdiction of ASTM Committee D13 on Textilesand is the direct respo
14、nsibility of Subcommittee D13.54 on Subassemblies.Current edition approved July 1, 2007. Published August 2007. Originallyapproved in 2002. Last previous edition approved in 2002 as D 684002.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serv
15、iceastm.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.8. Procedure8.1 Determination of Button DimensionsUsing
16、 a set ofcalipers or a micrometer bring the instrument faces or anvils incontact with the button diameter and thickness. Record bothdimensions to the nearest millimeter.8.1.1 All buttons to be tested are measured prior to and afterfinal drycleaning cycle.8.1.2 Four untested buttons of each size, col
17、or and style arekept as comparative references.8.1.3 Using AATCC Multifiber Test Fabric No. 10 for oneside and Undyed Cotton Twill Cloth for the other, prepare a bagwith inside dimensions of 200 by 100 mm (8 by 4 in.) bysewing the two superimposed fabrics around the three sides.Place the specimens i
18、nside the bag. Close the bag by anyconvenient means.NOTE 1Each button style, size and color should be tested in a separatebag.8.1.4 Dryclean the specimens in the bag as directed inProcedure for Drycleaning, Test Method D 2724, 10.1 through10.3.8.1.5 Repeat the drycleaning procedure through two addi-
19、tional cycles for a total of three cycles. Remove the specimensfrom the specimen bag and evaluate.9. Evaluation Report9.1 State that the buttons were tested as directed in TestMethod D 6840.9.2 Report the following information:9.2.1 Diameter and thickness of buttons before drycleaning,9.2.2 Diameter
20、 and thickness of buttons after three drycleaning cycles,9.2.3 Noticeable color change,9.2.4 Noticeable change in finish,9.2.5 Noticeable oxidation, and9.2.6 Noticeable swelling.10. Precision and Bias10.1 No justifiable statement can be made wither on preci-sion or on the bias of the procedures in T
21、est Method D 6840 forthe durability of buttons to formulated drycleaning solventssince the test merely states whether there is change.11. Keywords11.1 buttons; formulated drycleaningASTM International takes no position respecting the validity of any patent rights asserted in connection with any item
22、 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 responsible technical commi
23、ttee 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 consideration at a me
24、eting 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 Barr Harbor Drive,
25、 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 website(www.astm.org).D 6840 02 (2007)2
