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ASTM D7842/D7842M-12(2021)

(Test Method)

Standard Test Method for Holding Strength of Tack and Prong Fastener Attached Buttons

Standard Test Method for Holding Strength of Tack and Prong Fastener Attached Buttons

SIGNIFICANCE AND USE
5.1 This test method may be used for acceptance testing of commercial shipments of garments with attached buttons.  
5.2 This test method may be used to determine the compatibility of tack attached buttons or prong fastener attached buttons to fabrics used in apparel. In which case, the buttons are attached to the fabric in the manner in which they will be used and the combined units tested.
SCOPE
1.1 This test method covers the determination of the holding strength of a tack and prong fastener attached button using a tensile testing machine.  
1.2 This test method is applicable to attached buttons in garments or to be attached to fabrics intended for use in apparel (see Annex A1).  
1.3 Units—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.  
1.4 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.  
1.5 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 D1776/D1776M-20 - Standard Practice for Conditioning and Testing Textiles
Effective Date
01-Feb-2020
Refers
ASTM D123-17 - Standard Terminology Relating to Textiles
Effective Date
01-Mar-2017
Refers
ASTM D1776/D1776M-16 - Standard Practice for Conditioning and Testing Textiles
Effective Date
01-Jan-2016
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 D1776/D1776M-15 - Standard Practice for Conditioning and Testing Textiles
Effective Date
01-Feb-2015
Refers
ASTM D123-13a - Standard Terminology Relating to Textiles
Effective Date
15-Jun-2013
Refers
ASTM D123-13ae1 - 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 D76/D76M-11 - Standard Specification for Tensile Testing Machines for Textiles
Effective Date
01-Dec-2011
Refers
ASTM D123-09e2 - Standard Terminology Relating to Textiles
Effective Date
15-Jan-2009
Refers
ASTM D123-09 - Standard Terminology Relating to Textiles
Effective Date
15-Jan-2009

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ASTM D7842/D7842M-12(2021) - Standard Test Method for Holding Strength of Tack and Prong Fastener Attached ButtonsASTM D7842/D7842M-12(2021) - Standard Test Method for Holding Strength of Tack and Prong Fastener Attached Buttons
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ASTM D7842/D7842M-12(2021) - Standard Test Method for Holding Strength of Tack and Prong Fastener Attached Buttons
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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: D7842/D7842M − 12 (Reapproved 2021)
Standard Test Method for
Holding Strength of Tack and Prong Fastener Attached
Buttons
This standard is issued under the fixed designation D7842/D7842M; 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 2.2 Federal Document:
16 CFR Parts 1500.48-1500.53 and 1501.4 Engineering Test
1.1 This test method covers the determination of the holding
Manual for Children’s Toys
strength of a tack and prong fastener attached button using a
tensile testing machine.
3. Terminology
1.2 This test method is applicable to attached buttons in
3.1 Definitions:
garmentsortobeattachedtofabricsintendedforuseinapparel
3.1.1 force, n—a physical influence exerted by one body on
(see Annex A1).
another which produces acceleration of bodies that are free to
1.3 Units—The values stated in either SI units or inch-
move and deformation of bodies that are not free to move.
pound units are to be regarded separately as standard. The
3.1.2 holding strength, n—in buttons, the force required to
values stated in each system are not necessarily exact equiva-
separate the button from its attached mating part or separate
lents; therefore, to ensure conformance with the standard, each
from the fabric it is attached to, whichever shall fail first.
system shall be used independently of the other, and values
3.1.3 tack attached button, n—any button that is attached by
from the two systems shall not be combined.
a single post product (most commonly used to attach a non
1.4 This standard does not purport to address all of the
metal colleted button). (See Fig. 1.)
safety concerns, if any, associated with its use. It is the
3.1.4 prong fastener attached button, n—any button that is
responsibility of the user of this standard to establish appro-
attached by a product with 2 or more prongs (most commonly
priate safety, health, and environmental practices and deter-
used to attach a metal colleted button). (See Fig. 2.)
mine the applicability of regulatory limitations prior to use.
3.1.5 For definitions of other textile terms used in this
1.5 This international standard was developed in accor-
standard, refer to Terminology D123.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Summary of Test Method
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical 4.1 A specimen, consisting of a button and tack or prong
fastener attached to a fabric, is mounted in a special test fixture
Barriers to Trade (TBT) Committee.
on a tensile testing machine.Aforce is applied perpendicularly
2. Referenced Documents untilthebuttonseparatesfromthetackorprongfastener,orthe
fabric is torn. The peak force at separation is reported as the
2.1 ASTM Standards:
holding strength. If the fabric tears, the peak force at fabric
D76/D76M Specification for Tensile Testing Machines for
failure is recorded and the data is reported and considered as a
Textiles
different category to be reported separately from the holding
D123 Terminology Relating to Textiles
strength of the fasteners.
D1776/D1776M Practice for Conditioning and Testing Tex-
tiles
5. Significance and Use
5.1 This test method may be used for acceptance testing of
commercial shipments of garments with attached buttons.
This test method is under the jurisdiction ofASTM Committee D13 on Textiles
and is the direct responsibility of Subcommittee D13.54 on Subassemblies.
5.2 This test method may be used to determine the compat-
Current edition approved July 1, 2021. Published July 2021. Originally approved
ibility of tack attached buttons or prong fastener attached
in 2012. Last previous edition approved in 2016 as D7842/D7842M – 12 (2016).
buttons to fabrics used in apparel. In which case, the buttons
DOI: 10.1520/D7842-12R21.
For referenced ASTM standards, visit the ASTM website, 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 U.S. Government Publishing Office (GPO), 732 N. Capitol St.,
the ASTM website. NW, Washington, DC 20401, http://www.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7842/D7842M − 12 (2021)
7.1.1 For acceptance testing, randomly select the number of
shipping cartons or other containers of garments as directed in
an applicable material specification, contract or other agree-
ment between the purchaser and the supplier. Consider the
cartons or containers to be the primary sampling units.
7.2 Laboratory Sample:
7.2.1 For acceptance testing, take necessary number of
garments to obtain ten attachments. Button fly attachments
FIG. 1 Tack Attached
should be tested separately from waste band attached buttons.
7.3 Test Specimens:
7.3.1 Test ten specimens from each garment. A test speci-
men consists of the button, fabric, and product (tack or prong
fastener) used to attach button to fabric. The locations of the
specimensmustallowforsecureclampinginthefixtures.Extra
tests may need to be performed if fabric fails before reaching
either the force specification agreed upon by the purchaser and
supplier or 69 N [15.5 lb]. If the fabric fails before reaching 69
N, it is recommended to try a thicker application (more layers
FIG. 2 Prong Fastener Attached
of fabric) if possible, until ten tested specimens have no fabric
...

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1.3 The values stated in either SI units or in other units shall be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently of the other, without combining values in any way.  
1.4 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.  
1.5 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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ASTM
ASTM D2052-05(2022)(Test Method)
Standard Test Method for Colorfastness of Zippers to Drycleaning

SIGNIFICANCE AND USE
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.  
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 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.  
5.3 The method(s) in this standard along with those in Test Methods D2051, D2053, D2054, D2057, D2058, D2059, D2060, D2061, and D2062 are a collection of proven zipper 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 publishe...
SCOPE
1.1 This test method covers the determination of change in shade and of staining of zipper stringers under drycleaning conditions. This test method is applicable to the textile portion of zipper stringers of all materials.  
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.  
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.

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