ASTM D2059/D2059M-03(2009)
(Test Method)Standard Test Method for Resistance of Zippers to Salt Spray (Fog)
Standard Test Method for Resistance of Zippers to Salt Spray (Fog)
SIGNIFICANCE AND USE
The resistance of a zipper to a variety of saline and non-saline environments can be estimated from the amount and nature of corrosion products and their effect on operability. Results of exposure to the salt spray are merely indicative of the reaction to other corrosive conditions. While the results cannot be related precisely to a given length of exposure in a specific atmosphere, they are useful for measuring relative performance under prescribed conditions for controlling a manufacturing process, and for measuring the effectiveness of protective coatings.
Test Method D2059 for the determination of the resistance of zippers to salt spray is considered satisfactory for acceptance testing of commercial shipments of zippers because the test method is used extensively in the trade for acceptance testing.
If there are differences of practical significance between reported test results for two laboratories (or more), comparative test 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 for 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.
The method(s) in the standard along with those in Test Methods D2051, D2052, D2053, D2054, D2057, D2058, 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 me...
SCOPE
1.1 This test method covers the determination of the resistance of all types of zippers to corrosion and their ability to function properly after exposure of specified duration in a prescribed salt spray.
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
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Designation: D2059/D2059M − 03(Reapproved 2009)
Standard Test Method for
Resistance of Zippers to Salt Spray (Fog)
This standard is issued under the fixed designation D2059/D2059M; 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 D2060 Test Methods for Measuring Zipper Dimensions
D2061 Test Methods for Strength Tests for Zippers
1.1 This test method covers the determination of the resis-
D2062 Test Methods for Operability of Zippers
tance of all types of zippers to corrosion and their ability to
2.2 U. S. Government Standard:
function properly after exposure of specified duration in a
MIL-STD-105D Sampling Procedures and Tables for In-
prescribed salt spray.
specting Attributes
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
3. Terminology
each system may not be exact equivalents; therefore, each
3.1 Definitions:
system shall be used independently of the other. Combining
3.1.1 For definitions of zipper terms used in this standard
values from the two systems may result in non-conformance
refer to Terminology D2050. For definitions of other, textile
with the standard.
terminology used in this standard refer to Terminology D123.
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Method
responsibility of the user of this standard to establish appro-
4.1 The effects of corrosion on zippers, should it occur, are
priate safety and health practices and determine the applica-
evaluatedvisuallyandbymeasuringthecrosswisestrengthand
bility of regulatory limitations prior to use.
the force required to open and close the zipper both before and
2. Referenced Documents
after exposure in a prescribed salt-spray atmosphere for a
specified time.
2.1 ASTM Standards:
B117 Practice for Operating Salt Spray (Fog) Apparatus
5. Significance and Use
D123 Terminology Relating to Textiles
D2050 Terminology Relating to Fasteners and Closures
5.1 The resistance of a zipper to a variety of saline and
Used with Textiles
non-salineenvironmentscanbeestimatedfromtheamountand
D2051 Test Method for Durability of Finish of Zippers to
nature of corrosion products and their effect on operability.
Laundering
Results of exposure to the salt spray are merely indicative of
D2052 Test Method for Colorfastness of Zippers to Dry-
the reaction to other corrosive conditions. While the results
cleaning
cannot be related precisely to a given length of exposure in a
D2053 Test Method for Colorfastness of Zippers to Light
specific atmosphere, they are useful for measuring relative
D2054 Test Method for Colorfastness of Zipper Tapes to
performance under prescribed conditions for controlling a
Crocking
manufacturing process, and for measuring the effectiveness of
D2057 Test Method for Colorfastness of Zippers to Laun-
protective coatings.
dering
5.2 Test Method D2059 for the determination of the resis-
D2058 Test Method for Durability of Finish of Zippers to
tance of zippers to salt spray is considered satisfactory for
Drycleaning
acceptance testing of commercial shipments of zippers because
the test method is used extensively in the trade for acceptance
This test method is under the jurisdiction ofASTM Committee D13 on Textiles
testing.
and is the direct responsibility of Subcommittee D13.54 on Subassemblies. The
5.2.1 If there are differences of practical significance be-
method was developed in cooperation with the Slide Fastener Assn., Inc.
tween reported test results for two laboratories (or more),
Current edition approved July 1, 2009. Published November 2009. Originally
approved in 1961. Last previous edition approved in 2003 as D2059 – 03. DOI:
comparative test should be performed to determine if there is a
10.1520/D2059-03R09.
For referenced ASTM standards, visit the ASTM web site, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on Available from Naval Publications and Forms Center, 5801 Tabor Ave.,
the ASTM web site. Philadelphia, PA 19120.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D2059/D2059M − 03 (2009)
statistical bias between them, using competent statistical assis- for the determination of crosswise strength and operability
tance. As a minimum, the test samples should be used that are without being exposed to salt spray.
as homogeneous as possible, that are drawn from the material
10. Conditioning
from which the disparate test results were obtained, and that
are randomly assigned in equal numbers to each laboratory for
10.1 Specimens to be tested by use of this method need no
testing. Other materials with established test values may be
conditioning.
used for this purpose.The test results from the two laboratories
should be compared using a statistical test for unpaired data, at
11. Procedure
a probability level chosen prior to the testing series. If a bias is
11.1 Proceed as directed in Method B117.
found, either its cause must be found and corrected, or future
11.2 Open the specimen for one half its length and suspend
test results must be adjusted in consideration of the known
it in a vertical plane, opened end down, from a rod in the
bias.
salt-spray chamber.Take care that any suspension devices used
5.3 The method(s) in the standard along with those in Test
do not introduce corrosive
...
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