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ASTM D3657-03(2021)

(Specification)

Standard Specification for Zipper Dimensions

Standard Specification for Zipper Dimensions

ABSTRACT
This specification establishes standard dimensions for zippers of all materials for specified size designation; for equivalency, in inch-pound and metric units, of zipper length and length tolerances, of tape width and width tolerances, and of tape end lengths. Size, zipper length, tape width, and tape end length tests shall be performed in accordance with the specified requirements.
SCOPE
1.1 This specification establishes standard dimensions for zippers of all materials for specified size designation; for equivalency, in inch-pound and metric units, of zipper length and length tolerances, of tape width and width tolerances, and of tape end lengths.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Published
Publication Date
30-Jun-2021
ICS
61.040 - Headgear. Clothing accessories. Fastening of clothing
Technical Committee
D13 - Textiles
Drafting Committee
D13.54 - Subassemblies
Current Stage
Ref Project

Relations

Refers
ASTM D123-17 - Standard Terminology Relating to Textiles
Effective Date
01-Mar-2017
Refers
ASTM D123-15b - Standard Terminology Relating to Textiles
Effective Date
15-Sep-2015
Refers
ASTM D123-15a - Standard Terminology Relating to Textiles
Effective Date
01-Sep-2015
Refers
ASTM D123-15 - Standard Terminology Relating to Textiles
Effective Date
01-Apr-2015
Refers
ASTM D2060-14 - Standard Test Methods for Measuring Zipper Dimensions
Effective Date
01-Feb-2014
Refers
ASTM D123-13ae1 - Standard Terminology Relating to Textiles
Effective Date
15-Jun-2013
Refers
ASTM D123-13a - Standard Terminology Relating to Textiles
Effective Date
15-Jun-2013
Refers
ASTM D123-13 - Standard Terminology Relating to Textiles
Effective Date
15-May-2013
Refers
ASTM D123-12e1 - Standard Terminology Relating to Textiles
Effective Date
01-Feb-2012
Refers
ASTM D123-12 - Standard Terminology Relating to Textiles
Effective Date
01-Feb-2012
Refers
ASTM D2050-11e1 - Standard Terminology Relating to Fasteners and Closures Used with Textiles
Effective Date
01-Jan-2011
Refers
ASTM D2050-11 - Standard Terminology Relating to Fasteners and Closures Used with Textiles
Effective Date
01-Jan-2011
Refers
ASTM D2060-00(2010) - Standard Test Methods for Measuring Zipper Dimensions
Effective Date
01-Jun-2010
Refers
ASTM D2050-09 - Standard Terminology Relating to Subassemblies
Effective Date
01-Jul-2009
Refers
ASTM D123-09e2 - Standard Terminology Relating to Textiles
Effective Date
15-Jan-2009

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ASTM D3657-03(2021) - Standard Specification for Zipper Dimensions
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:D3657 −03 (Reapproved 2021)
Standard Specification for
Zipper Dimensions
This standard is issued under the fixed designation D3657; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 For definitions of zipper terms used in this standard,
refer to Terminology D2050. For definitions of other textile
1.1 This specification establishes standard dimensions for
terminology used in this standard refer to Terminology D123.
zippers of all materials for specified size designation; for
equivalency, in inch-pound and metric units, of zipper length
4. Sampling
and length tolerances, of tape width and width tolerances, and
of tape end lengths.
4.1 Sample the lot and select the number of specimens as
directed in Test Methods D2060.
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
5. Dimensions and Permissible Variations
each system are not necessarily exact equivalents; therefore, to
ensure conformance with the standard, each system shall be
5.1 Zippers shall conform to the dimensions listed in Tables
used independently of the other, and values from the two
1-4.
systems shall not be combined.
5.2 Tables 2 and 3 include tolerances which represent trade
1.3 This standard does not purport to address all of the
practiceandareincommonuse.Thetolerancesarenotuniform
safety concerns, if any, associated with its use. It is the
between sizes because of differing requirements of the zippers
responsibility of the user of this standard to establish appro-
based on their normal end-use.
priate safety, health, and environmental practices and deter-
5.3 Table 2, within a size, has uniform plus tolerances.
mine the applicability of regulatory limitations prior to use.
Minus tolerances increase nonuniformly with increasing length
1.4 This international standard was developed in accor-
because that is accepted trade practice based on the require-
dance with internationally recognized principles on standard-
ments of the end products in which the zippers are installed.
ization established in the Decision on Principles for the
5.3.1 Because zipper chain is composed of a series of
Development of International Standards, Guides and Recom-
elements with a prescribed pitch and each element must remain
mendations issued by the World Trade Organization Technical
complete to function, it is impossible to manufacture a zipper
Barriers to Trade (TBT) Committee.
deliberately to an exact stated length. Therefore a shipment of
2. Referenced Documents zippers of a stated length will not likely average the stated
length. Both the lot average length and the length of individual
2.1 ASTM Standards:
zippers should fall within the tolerances in Table 2.
D123 Terminology Relating to Textiles
D2050 Terminology Relating to Subassemblies Used in the 5.4 Table 4 shows the metric conversion for standard
Manufacture of Textiles
inch-pound unit tape end lengths. Tape end length tolerances
D2060 Test Methods for Measuring Zipper Dimensions
are not shown due to widely varying end-use requirements and
inherent zipper manufacturing dimension variations. Toler-
3. Terminology
ances to be observed should be agreed upon between purchaser
3.1 Definitions: and supplier.
6. Test Methods
This specification is under the jurisdiction of ASTM Committee D13 on
Textiles and is the direct responsibility of Subcommittee D13.54 on Subassemblies.
6.1 Size—Determine the zipper size as directed in the mouth
This specification was developed in cooperation with the Slide Fastener and Closure
width procedure of Test Methods D2060.
Association.
Current edition approved July 1, 2021. Published August 2021. Originally
6.2 Zipper Length—Determine the zipper length as directed
approved in 1978. Last previous edition approved in 2014 as D3657 – 03(2014).
in the length of completely assembled zipper procedure of Test
DOI: 10.1520/D3657-03R21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Methods D2060.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.3 Tape Width—Determine the zipper tape width as di-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. rected in the tape width procedure of Test Methods D2060.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D3657−03 (2021)
TABL
...

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1.1 This test method covers the determination of alteration in shade and of staining under conditions similar to that experienced in domestic washing of zipper stringers. This test method is applicable to the textile portion of zipper stringers that utilize tapes made of cotton, linen, or manufactured organic fibers, and to combinations thereof.  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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5.1 Test Method D2052 is useful for testing to determine if the degree of alteration in shade is satisfactory for the intended end-use and for determining if unacceptable staining of color into adjacent fabric will occur.
Note 1: For guidance in evaluating the results of this test method, refer to Practice D3692.  
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5.2.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if their is a statistical bias between them, using competent statistical assistance. As a minimum, the test samples should be used that are as homogeneous as possible, that are drawn from the material from which the disparate test results were obtained, and that are randomly assigned in equal numbers to each laboratory for testing. Other materials with established test values may be used for this purpose. The test results from the two laboratories should be compared using a statistical test for unpaired data, at probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results must be adjusted in consideration of the known bias.  
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Standard Test Method for Durability of Finish of Zippers to Drycleaning

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5.1 Test Method D2058 is useful for determining the effect of repeated drycleaning on the appearance of the decorative coating of a zipper.  
5.2 This test method is considered satisfactory for acceptance testing of commercial shipments because the method has been used extensively in the trade for acceptance testing.  
5.2.1 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, the test samples should be used that are as homogeneous as possible, that are drawn from the material from which the disparate test results were obtained, and that are randomly assigned in equal numbers to each laboratory for testing. Other materials with established test values may be used for this purpose. The test results from the two laboratories should be compared using a statistical test unpaired data, at a probability level chosen prior to the testing series. If a bias is found, either its cause must be found and corrected, or future test results must be adjusted in consideration of the known bias.  
5.3 The method(s) in the standard along with those in Test Methods D2051, D2052, D2053, D2054, D2057, D2059, D2060, D2061, and D2062 are a collection of proven test methods. They can be used as aids in the evaluation of zippers without the need for a thorough knowledge of zippers. The enumerated test methods do not provide for the evaluation of all zipper properties. Besides those properties measured by means of the enumerated test methods there are other properties that may be important for the satisfactory performance of a zipper. Test methods for measuring those properties have not been published either because no practical methods have yet been developed or because a valid evaluation of the information resulting from existing unpublished methods requires an intimate and thoroug...
SCOPE
1.1 This test method covers the determination of the durability of the enamel or other decorative coating of zippers when subjected to drycleaning.  
1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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