ASTM D2051-86(1997)
(Test Method)Standard Test Method for Durability of Finish of Zippers to Laundering
Standard Test Method for Durability of Finish of Zippers to Laundering
SCOPE
1.1 This test method covers the determination of the durability of the enamel or other decorative coating of a zipper when subjected to laundering.
1.2 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. >
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Designation: D 2051 – 86 (Reapproved 1997)
Standard Test Method for
Durability of Finish of Zippers to Laundering
This standard is issued under the fixed designation D 2051; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 4. Summary of Test Method
1.1 This test method covers the determination of the dura- 4.1 Specimens are laundered in laboratory equipment at a
bility of the enamel or other decorative coating of a zipper low liquor-to-goods ratio under conditions of temperature,
when subjected to laundering. bleaching, and abrasive action that produce the effect of
1.2 This standard does not purport to address all of the repeated launderings in a conveniently short time. The zipper
safety concerns, if any, associated with its use. It is the coating is abraded by the throw, slide, and impact of an
responsibility of the user of this standard to establish appro- appropriate number of steel balls. The effects of the test on
priate safety and health practices and determine the applica- zipper coating are evaluated by noting the loss of coating on
bility of regulatory limitations prior to use. the zipper chain or components, or both.
2. Referenced Documents 5. Significance and Use
2.1 ASTM Standards: 5.1 This test method is useful for testing to determine the
D 123 Terminology Relating to Textiles effect of repeated laundering on the appearance of the decora-
D 2050 Terminology Relating to Zippers tive coating of a zipper.
D 2052 Test Method for Colorfastness of Zippers to Dry- 5.2 This test method is considered satisfactory for accep-
cleaning tance testing of commercial shipments since the method has
D 2053 Test Method for Colorfastness of Zippers to Light been used extensively in the trade for acceptance testing.
D 2054 Test Method for Colorfastness of Zipper Tapes to 5.2.1 In case of a dispute arising from differences in
Crocking reported test results when using Test Method D 2051 for
D 2057 Test Method for Colorfastness of Zippers to Laun- acceptance testing of commercial shipments, the purchaser and
dering the supplier should conduct comparative tests to determine if
D 2058 Test Method for Durability of Finish of Zippers to there is a statistical bias between their laboratories. Competent
Drycleaning statistical assistance is recommended for the investigation of
D 2059 Test Method for Resistance of Zippers to Salt Spray bias. As a minimum, the two parties should take a group of
(Fog) tests specimens that are as homogeneous as possible and that
D 2060 Test Methods for Measuring Zipper Dimensions are from a lot of material of the type in question. The test
D 2061 Test Methods for Strength Tests for Zippers specimens should then be randomly assigned in equal numbers
D 2062 Test Methods for Operability of Zippers to each laboratory for testing. The average results from the two
2.2 AATCC Method: laboratories should be compared using Student’s t-test for
Method 61 Colorfastness to Washing, Domestic; and Laun- unpaired data and an acceptable probability level chosen by the
dering, Commercial: Accelerated two parties before the testing is begun. If a bias is found, either
its cause must be found and corrected or the purchaser and
3. Terminology
supplier must agree to interpret future test results in the light of
3.1 Definitions—For definitions of zipper terms used in this the known bias.
standard, refer to Terminology D 2050. For definitions of other
5.3 The test method(s) in the standard along with those in
textile terminology used in this standard, refer to Terminology Test Methods D 2052, D 2053, D 2054, D 2057, D 2058,
D 123.
D 2059, D 2060, D 2061, and D 2062 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
This test method is under the jurisdiction of ASTM Committee D-13 on
zippers. The enumerated test methods do not provide for the
Textiles, and is the direct responsibility of Subcommittee D13.54 on Subassemblies.
evaluation of all zipper properties. Besides those properties
The method was developed in cooperation with the Slide Fastener Association, Inc.
Current edition approved March 27, 1986. Published May 1986. Originally measured by means of the enumerated test methods there are
published as D 2051 – 61 T. Last previous edition D 2051 – 81.
other properties that may be important for the satisfactory
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