1、Designation: D2059/D2059M 03 (Reapproved 2009)Standard Test Method forResistance of Zippers to Salt Spray (Fog)1This standard is issued under the fixed designation D2059/D2059M; 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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the determination of the resis-tance of all types of zippers to corrosion and their abi
3、lity tofunction properly after exposure of specified duration in aprescribed salt spray.1.2 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 equivalents; therefore, eachsystem shall be used independent
4、ly of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 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 hea
5、lth practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B117 Practice for Operating Salt Spray (Fog) ApparatusD123 Terminology Relating to TextilesD2050 Terminology Relating to SubassembliesD2051 Test Method for Durability of F
6、inish of Zippers toLaunderingD2052 Test Method for Colorfastness of Zippers to Dry-cleaningD2053 Test Method for Colorfastness of Zippers to LightD2054 Test Method for Colorfastness of Zipper Tapes toCrockingD2057 Test Method for Colorfastness of Zippers to Laun-deringD2058 Test Method for Durabilit
7、y of Finish of Zippers toDrycleaningD2060 Test Methods for Measuring Zipper DimensionsD2061 Test Methods for Strength Tests for ZippersD2062 Test Methods for Operability of Zippers2.2 U. S. Government Standard:MIL-STD-105D Sampling Procedures and Tables for In-specting Attributes33. Terminology3.1 D
8、efinitions:3.1.1 For definitions of zipper terms used in this standardrefer to Terminology D2050. For definitions of other, textileterminology used in this standard refer to Terminology D123.4. Summary of Test Method4.1 The effects of corrosion on zippers, should it occur, areevaluated visually and
9、by measuring the crosswise strength andthe force required to open and close the zipper both before andafter exposure in a prescribed salt-spray atmosphere for aspecified time.5. Significance and Use5.1 The resistance of a zipper to a variety of saline andnon-saline environments can be estimated from
10、 the amount andnature of corrosion products and their effect on operability.Results of exposure to the salt spray are merely indicative ofthe reaction to other corrosive conditions. While the resultscannot be related precisely to a given length of exposure in aspecific atmosphere, they are useful fo
11、r measuring relativeperformance under prescribed conditions for controlling amanufacturing process, and for measuring the effectiveness ofprotective coatings.5.2 Test Method D2059 for the determination of the resis-tance of zippers to salt spray is considered satisfactory foracceptance testing of co
12、mmercial shipments of zippers becausethe test method is used extensively in the trade for acceptancetesting.5.2.1 If there are differences of practical significance be-tween reported test results for two laboratories (or more),comparative test should be performed to determine if there is astatistica
13、l bias between them, using competent statistical assis-tance. As a minimum, the test samples should be used that areas homogeneous as possible, that are drawn from the materialfrom which the disparate test results were obtained, and that1This test method is under the jurisdiction of ASTM Committee D
14、13 on and isthe direct responsibility of Subcommittee D13.54 on Subassemblies. The methodwas developed in cooperation with the Slide Fastener Assn., Inc.Current edition approved July 1, 2009. Published November 2009. Originallyapproved in 1961. Last previous edition approved in 2003 as D2059 03. DOI
15、:10.1520/D2059-03R09.2For referenced ASTM standards, visit the ASTM 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.3Available from Naval Publications and
16、 Forms Center, 5801 Tabor Ave.,Philadelphia, PA 19120.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.are randomly assigned in equal numbers to each laboratory fortesting. Other materials with established test values may beused for t
17、his purpose. The test results from the two laboratoriesshould 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
18、the knownbias.5.3 The method(s) in the standard along with those in TestMethods D2051, D2052, D2053, D2054, D2057, D2058,D2060, D2061, and D2062 are a collection of proven testmethods. They can be used as aids in the evaluation of zipperswithout the need for a thorough knowledge of zippers. Theenume
19、rated test methods do not provide for the evaluation ofall zipper properties. Besides those properties measured bymeans of the enumerated test methods there are other proper-ties that may be important for the satisfactory performance ofa zipper. Test methods for measuring those properties have notbe
20、en published either because no practical methods have yetbeen developed or because a valid evaluation of the informa-tion resulting from existing unpublished methods requires anintimate and thorough knowledge of zippers.6. Apparatus6.1 Apparatus specified in Method B117.7. Reagents7.1 Salt SolutionP
21、repare a 5 % salt (NaCl) solution asdirected in Method B117.8. Sampling8.1 Lot SampleAs a lot sample for acceptance testing,take at random the number of individual containers from eachshipping carton as directed in an applicable material specifi-cation or other agreement between the purchaser and th
22、esupplier. Consider individual containers from each shippingcarton to be the primary sampling units.NOTE 1If the wide variability of quality suggested in A2.2 of AnnexA2 of Method B117 is suspected, the agreement on taking a lot sampleshould be based on MIL-STD-105D. An adequate specification or oth
23、eragreement between the purchaser and the supplier requires taking intoaccount the variability between shipping cartons and zippers within acontainer to provide a sampling plan with a meaningful producers risk,acceptable quality level, and limiting quality level.8.2 Laboratory Sample and Test Specim
24、ensAs a labora-tory sample for acceptance testing, take two zippers at randomfrom each container in the lot sample. Use these zippers as thetest specimens for a unit in the laboratory sample.9. Test Specimens9.1 From each laboratory sample take duplicate specimensconsisting of a completely assembled
25、 zipper of 150-mm (6-in.)minimum length or a similar length of chain equipped with anappropriate slider. Set one specimen aside to serve as controlfor the determination of crosswise strength and operabilitywithout being exposed to salt spray.10. Conditioning10.1 Specimens to be tested by use of this
26、 method need noconditioning.11. Procedure11.1 Proceed as directed in Method B117.11.2 Open the specimen for one half its length and suspendit in a vertical plane, opened end down, from a rod in thesalt-spray chamber. Take care that any suspension devices useddo not introduce corrosive effects. When
27、a number of speci-mens are tested simultaneously, take care to keep the speci-mens from touching each other and to avoid having corrosionproducts and condensate from one specimen fall on another.11.3 Close the salt-spray chamber and bring the insidetemperature within the range 33 to 36C (92 to 97F)
28、andmaintain the temperature within this range throughout the test.11.4 Expose the specimens in the chamber to the salt sprayfor a continuous period of 24 h, after which, remove thespecimens from the salt-spray chamber. Gently rinse or dip thespecimens in a stream of tap water at room temperature and
29、then blow off excess water with air free from entrainedmoisture.11.5 Place the specimens on a horizontal surface such as amuslin-covered frame and allow them to dry under roomconditions. When dry, examine the specimens, visually noteand record the presence or absence of any corrosion.11.6 After the
30、inspection, manually operate the slider for tencomplete opening and closing cycles if possible.11.7 Test both the exposed specimen and the control speci-men, which had been set aside (see 9.1), for crosswise strengthas directed in Test Methods D2061 and for opening and closingoperability as directed
31、 in Test Methods D2062. Record theresults of these tests.12. Report12.1 State that the specimens were tested as directed inASTM Test Method D2059. Describe the material(s) or prod-uct(s) sampled and the method of sampling used.12.2 Report the following information:12.2.1 Presence or absence of any c
32、orrosion after exposureto the salt spray.12.2.2 Crosswise strength of each specimen,12.2.3 Forces required to open and to close each specimen,and12.2.4 Number and description of specimens tested.13. Precision and Bias13.1 No statement is made on precision and bias since theformation of corrosion pro
33、ducts is an attribute.13.2 The precision and bias of the methods for crosswisestrength and for opening and closing operability are as stated inTest Methods D2061 and in Test Methods D2062, respectively.13.3 The user of the method should also refer to AppendixA2 of Method B117 for cautions concerning
34、 the interpretationof test results.14. Keywords14.1 corrosion; zipperD2059/D2059M 03 (2009)2ASTM 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 determinatio
35、n 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 withdra
36、wn. 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 your c
37、omments 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 (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).D2059/D2059M 03 (2009)3
