1、Designation: D6840 02 (Reapproved 2013)Standard Test Method forEffect of Drycleaning on Buttons1This standard is issued under the fixed designation D6840; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon () 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 applies
3、to buttons made from plastics, naturalmaterials, 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 buttons
4、 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 practi
5、ces and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD2724 Test Methods for Bonded, Fused, and LaminatedApparel FabricsD3136 Terminology Relating to Care Labeling for Apparel,Textile, Home Furnishi
6、ng, and Leather ProductsD5497 Terminology Relating to Buttons (Withdrawn 2011)33. Terminology3.1 DefinitionsFor definitions of terms used in this testmethod, refer to Terminologies D123, D 5497D5497, andD3136.4. Summary of Test Method4.1 Specimens are sewn onto fabric and subjected to com-mercial dr
7、y cleaning. 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
8、foracceptance 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 sampless
9、hould be used 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 f
10、orunpaired data, 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 T
11、estMethod D2724.6.2 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
12、, and Test 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.
13、 If the test specimens aresubmitted for pre-production approval, testing of 10 buttons is1This test method is under the jurisdiction of ASTM Committee D13 on Textilesand is the direct responsibility of Subcommittee D13.54 on Subassemblies.Current edition approved Jan. 1, 2013. Published January 2013
14、. Originallyapproved in 2002. Last previous edition approved in 2007 as D684002(2007).DOI: 10.1520/D6840-02R13.2For 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 s
15、tandards Document Summary page onthe ASTM website.3The 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 States1acceptable. Retailers can test the garment with the
16、buttonsattached. It is not necessary to place garment in specimen bag.8. Procedure8.1 Determination of Button DimensionsUsing 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
17、All buttons to be tested are measured prior to and afterfinal drycleaning cycle.8.1.2 Four untested buttons of each size, color 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 insid
18、e dimensions of 200 by 100 mm (8 by 4 in.) bysewing the two superimposed fabrics around the three sides.Place the specimens inside 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 direct
19、ed inProcedure for Drycleaning, Test Method D2724, 10.1 through10.3.8.1.5 Repeat the drycleaning procedure through two addi-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 Test
20、Method D6840.9.2 Report the following information:9.2.1 Diameter and thickness of buttons before drycleaning,9.2.2 Diameter 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
21、.10. Precision and Bias10.1 No justifiable statement can be made wither on preci-sion or on the bias of the procedures in Test Method D6840 forthe durability of buttons to formulated drycleaning solventssince the test merely states whether there is change.11. Keywords11.1 buttons; formulated dryclea
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24、ndardsand 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 your comments have not received a fair hearing you shouldmake your views known to the ASTM Com
25、mittee 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 (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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D6840 02 (2013)2
