ASTM D2059-2003 Standard Test Method for Resistance of Zippers to Salt Spray (Fog)《拉链抗盐雾腐蚀的标准试验方法》.pdf

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1、Designation: D 2059 03Standard Test Method forResistance of Zippers to Salt Spray (Fog)1This standard is issued under the fixed designation D 2059; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number

2、 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 covers the determination of the resis-tance of all types of zippers to corrosion and their ability tofunction properly afte

3、r exposure of specified duration in aprescribed salt spray.1.2 The values stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is therespon

4、sibility of the 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:2B 117 Practice for Operating Salt Spray (Fog) TestingApparatusD 123 Terminology Relating to T

5、extilesD 2050 Terminology Relating to ZippersD 2051 Test Method for Durability of Finish of Zippers toLaunderingD 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 Tapes toCrockingD 2057

6、 Test Method for Colorfastness of Zippers to Laun-deringD 2058 Test Method for Durability of Finish of Zippers toDrycleaningD 2060 Test Methods for Measuring Zipper DimensionsD 2061 Test Methods for Strength Tests of ZippersD 2062 Test Methods for Operability of Zippers2.2 U. S. Government Standard:

7、MIL 105D Sampling Procedures and Tables for InspectingAttributes33. Terminology3.1 Definitions:3.1.1 For definitions of zipper terms used in this standardrefer to Terminology D 2050. For definitions of other, textileterminology used in this standard refer to Terminology D 123.4. Summary of Test Meth

8、od4.1 The effects of corrosion on zippers, should it occur, areevaluated visually and 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 resistan

9、ce of a zipper to a variety of saline andnon-saline environments can be estimated from 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 relat

10、ed precisely to a given length of exposure in aspecific atmosphere, they are useful for measuring relativeperformance under prescribed conditions for controlling amanufacturing process, and for measuring the effectiveness ofprotective coatings.5.2 Test Method D 2059 for the determination of the resi

11、s-tance of zippers to salt spray is considered satisfactory foracceptance testing of commercial 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 laborator

12、ies (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 homogeneous as possible, that are drawn from the materialfrom which the disparate test results

13、 were obtained, and thatare randomly assigned in equal numbers to each laboratory for1This test method is under the jurisdiction of ASTM Committee D13 on Textiles,and is the direct responsibility of Subcommittee D13.54 on Subassemblies. Themethod was developed in cooperation with the Slide Fastener

14、Assn., Inc.Current edition approved Dec. 1, 2003. Published December 2003. Originallyapproved in 1961. Last previous edition approved in 1997 as D 2059 87 (1997).2For referenced ASTM standards, visit the ASTM web site, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. ForAnnual Book

15、of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM web site.3Available from Naval Publications and Forms Center, 5801 Tabor Ave.,Philadelphia, PA 19120.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Unite

16、d States.testing. Other materials with established test values may beused for this 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 f

17、ound and corrected, or futuretest results must be adjusted in consideration of the knownbias.5.3 The method(s) in the standard along with those in TestMethods D 2051, D 2052, D 2053, D 2054, D 2057, D 2058,D 2060, D 2061, and D 2062 are a collection of proven testmethods. They can be used as aids in

18、 the evaluation of zipperswithout the need for a thorough knowledge of zippers. Theenumerated 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 sat

19、isfactory performance ofa zipper. Test methods for measuring those properties have notbeen 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

20、zippers.6. Apparatus6.1 Apparatus specified in Method B 117.7. Reagents7.1 Salt SolutionPrepare a 5 % salt (NaCl) solution asdirected in Method B 117.8. Sampling8.1 Lot SampleAs a lot sample for acceptance testing,take at random the number of individual containers from eachshipping carton as directe

21、d in an applicable material specifi-cation or other agreement between the purchaser and thesupplier. 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 B 117 is suspected, the agreem

22、ent on taking a lot sampleshould be based on MIL-STD-105D. An adequate specification or otheragreement 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

23、,acceptable quality level, and limiting quality level.8.2 Laboratory Sample and Test SpecimensAs 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

24、.1 From each laboratory sample take duplicate specimensconsisting of a completely assembled 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 operabilitywit

25、hout being exposed to salt spray.10. Conditioning10.1 Specimens to be tested by use of this method need noconditioning.11. Procedure11.1 Proceed as directed in Method B 117.11.2 Open the specimen for one half its length and suspendit in a vertical plane, opened end down, from a rod in thesalt-spray

26、chamber. Take care that any suspension devices useddo not introduce corrosive effects. When 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 th

27、e salt-spray chamber and bring the insidetemperature within the range 33 to 36C (92 to 97F) 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-spra

28、y chamber. Gently rinse or dip thespecimens in a stream of tap water at room temperature andthen 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

29、 specimens, visually noteand record the presence or absence of any corrosion.11.6 After the 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

30、strengthas directed in Test Methods D 2061 and for opening andclosing operability as directed in Test Methods D 2062. Recordthe results of these tests.12. Report12.1 State that the specimens were tested as directed inASTM Test Method D 2059. Describe the material(s) orproduct(s) sampled and the meth

31、od of sampling used.12.2 Report the following information:12.2.1 Presence or absence of any corrosion 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. Precisio

32、n and Bias13.1 No statement is made on precision and bias since theformation of corrosion products 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 D 2061 and in Test Methods D 2062, respec-tively.13

33、.3 The user of the method should also refer to AppendixA2 of Method B 117 for cautions concerning the interpretationof test results.14. Keywords14.1 corrosion; zipperD2059032ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mention

34、edin 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 committee and

35、 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 meeting of

36、 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, PO Box

37、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).D2059033