1、Designation: D 2051 03(Reapproved 2009)Standard Test Method forDurability of Finish of Zippers to Laundering1This standard is issued under the fixed designation D 2051; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of la
2、st revision. A 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 covers the determination of the dura-bility of the enamel or other decorative coating of a zipperwhen s
3、ubjected to laundering.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 practices and determine the applica-bility of regulatory limitations prior
4、 to use.2. Referenced Documents2.1 ASTM Standards:2D 123 Terminology Relating to TextilesD 2050 Terminology Relating to SubassembliesD 2052 Test Method for Colorfastness of Zippers to Dry-cleaningD 2053 Test Method for Colorfastness of Zippers to LightD 2054 Test Method for Colorfastness of Zipper T
5、apes toCrockingD 2057 Test Method for Colorfastness of Zippers to Laun-deringD 2058 Test Method for Durability of Finish of Zippers toDrycleaningD 2059 Test Method for Resistance of Zippers to Salt Spray(Fog)D 2060 Test Methods for Measuring Zipper DimensionsD 2061 Test Methods for Strength Tests fo
6、r ZippersD 2062 Test Methods for Operability of Zippers2.2 AATCC Method:Method 61 Colorfastness to Washing, Domestic; and Laun-dering, Commercial: Accelerated33. Terminology3.1 DefinitionsFor definitions of zipper terms used in thisstandard, refer to Terminology D 2050. For definitions of othertexti
7、le terminology used in this standard, refer to TerminologyD 123.4. Summary of Test Method4.1 Specimens are laundered in laboratory equipment at alow liquor-to-goods ratio under conditions of temperature,bleaching, and abrasive action that produce the effect ofrepeated launderings in a conveniently s
8、hort time. The zippercoating is abraded by the throw, slide, and impact of anappropriate number of steel balls. The effects of the test onzipper coating are evaluated by noting the loss of coating onthe zipper chain or components, or both.5. Significance and Use5.1 Test Method D 2051 is useful for t
9、esting to determinethe effect of repeated laundering on the appearance of thedecorative coating of a zipper.5.2 This test method is considered satisfactory for accep-tance testing of commercial shipments because the method hasbeen used extensively in the trade for acceptance testing.5.2.1 If there a
10、re differences of practical significancebetween reported test results for two laboratories (or more),comparative test should be performed to determine if there is astatistical bias between them, using competent statistical assis-tance. As a minimum, the test samples should be used that areas homogen
11、eous as possible, that are drawn from the materialfrom which the disparate test results were obtained, and thatare randomly assigned in equal numbers to each laboratory fortesting. Other materials with established test values may beused for this purpose. The test results from the two laboratoriessho
12、uld be compared using a statistical test for unpaired data, ata probability level chosen prior to the testing series. If a bias isfound, either its cause must be found and corrected, or futuretest results must be adjusted in consideration of the knownbias.5.3 The test method(s) in the standard along
13、 with those inTest Methods D 2052, D 2053, D 2054, D 2057, D 2058,D 2059, D 2060, D 2061, and D 2062 are a collection ofproven test methods. They can be used as aids in the evaluation1This test method is under the jurisdiction of ASTM Committee D13 on Textilesand is the direct responsibility of Subc
14、ommittee D13.54 on Subassemblies. Themethod was developed in cooperation with the Slide Fastener Association, Inc.Current edition approved July 1, 2009. Published August 2009. Originallyapproved in 1961. Last previous edition approved in 2003 as D 2051 03.2For referenced ASTM standards, visit the AS
15、TM web site, 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 web site.3Technical Manual of the American Association of Textile Chemists andColorists, P.O. Box 12215, Researc
16、h Triangle Park, NC 27709.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.of zippers without the need for a thorough knowledge ofzippers. The enumerated test methods do not provide for theevaluation of all zipper properties. Besides
17、those propertiesmeasured by means of the enumerated test methods there areother properties that may be important for the satisfactoryperformance of a zipper. Test methods for measuring thoseproperties have not been published either because no practicalmethods have yet been developed or because a val
18、id evaluationof the information resulting from existing unpublished methodsrequires an intimate and thorough knowledge of zippers.6. Sampling6.1 Lot SampleAs a lot sample for acceptance testing,take at random the number of individual containers from eachshipping carton, as directed in an applicable
19、material specifi-cation or other agreement between the purchaser and thesupplier. Consider individual containers from each shippingcarton to be the primary sampling units.NOTE 1An adequate specification or other agreement between thepurchaser and supplier requires taking into account the variability
20、 betweenshipping cartons and between zippers in a container to provide a samplingplan with a meaningful producers risk, consumers risk, acceptablequality level, and limiting quality level.6.2 Laboratory Sample and Test SpecimensAs a labora-tory sample for acceptance testing, take at random two zippe
21、rsfrom each shipping container in the lot sample. Consider thezippers as both the laboratory samples and the test specimens.7. Test Specimen7.1 The test specimen shall consist either of a completelyassembled zipper or a length of chain. In either case, the lengthshall not be greater than 254 mm (10
22、in.). In the case of acompletely assembled zipper that is longer than 254 mm, thespecimen may be made up by cutting out and removing thecentral portion of the chain, and then securely attaching the cutends together, using suitable noncorrosive materials such assewing thread or stainless steel staple
23、s. If it is desired to test theentire length of a long zipper, it should be cut into parts 254mm or less in length and these parts tested separately.8. Conditioning8.1 No special environmental conditions are required.9. Procedure9.1 Test each specimen as directed in AATCC Method 61,Paragraph 7 Proce
24、dure, using Test Condition 3A.10. Interpretation of Results10.1 Interpret the test results by visually examining thechain and components for exposed base metal and comparingthe observations to samples illustrating an acceptable degree ofcoating loss as agreed upon between the purchaser and thesuppli
25、er.11. Report11.1 State that the specimens were tested as directed in TestMethod D 2051. Describe the material or product sampled, andthe method of sampling used.11.2 Report the following information:11.2.1 Number of specimens tested, and11.2.2 Number of specimens equal to or not equal to theagreed
26、upon standard.12. Precision and Bias12.1 No justifiable statistical statement can be made oneither the precision or the bias of the procedures in testingcoating resistance to abrasion in laundering since the testmerely states whether there is conformance to an agreed uponstandard.13. Keywords13.1 du
27、rability; laundering; zipperASTM 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 determination of the validity of any such patent rights, and the riskof infr
28、ingement 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 withdrawn. Your comments are invited either for revision of this standa
29、rd 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 your comments have not received a fair hearing you shouldmake your vie
30、ws 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 (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 2051 03 (2009)2
