ASTM D7506/D7506M-17(2021)
(Test Method)Standard Test Method for Pocket Reinforcement
Standard Test Method for Pocket Reinforcement
ABSTRACT
This test method employs the grab procedures used to determine localized weakness due to bar-tacking in the pocket areas of all types of garments such as shirts, including the side or back pockets of trousers, pants, or jeans. To test its breaking strength, a specimen of the pocket area shall be mounted centrally in clamps of a constant-rate-of-extension tensile testing machine and a force shall be applied until the specimen breaks. Reports on the test results shall include the mode of failure and the location of where the break occurs.
SCOPE
1.1 This test method utilizes the grab procedures to determine localized weakness due to bar-tacking in the pocket areas of all types of garments. This can be utilized to test bar-tacking in the pockets of shirts, as well as side or back pockets of trousers, pants, or jeans.
1.2 This test method provides the values in both inch-pound and SI units. Inch-pound units is the technically correct name for the customary units used in the United States. SI units is the technically correct name for the system of metric units know as the International System of Units. The values stated in either acceptable metric 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 in any way.
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
- Technical Committee
- D13 - Textiles
- Drafting Committee
- D13.54 - Subassemblies
Relations
- Effective Date
- 01-Feb-2020
- Effective Date
- 01-Mar-2017
- Effective Date
- 01-Jan-2016
- Effective Date
- 15-Sep-2015
- Effective Date
- 01-Sep-2015
- Effective Date
- 01-Apr-2015
- Effective Date
- 01-Feb-2015
- Effective Date
- 15-Jun-2013
- Effective Date
- 15-Jun-2013
- Effective Date
- 15-May-2013
- Effective Date
- 01-Feb-2012
- Effective Date
- 01-Feb-2012
- Effective Date
- 01-Dec-2011
- Effective Date
- 15-Jan-2009
- Effective Date
- 15-Jan-2009
Overview
ASTM D7506/D7506M-17(2021) is the internationally recognized standard test method for evaluating pocket reinforcement in garments. Developed by ASTM International, this standard outlines reliable laboratory procedures for determining the localized strength and durability of pocket areas reinforced with bar-tacking. The test is essential for assessing failure modes and ensuring product quality in clothing such as shirts, trousers, pants, and jeans.
Utilizing a constant-rate-of-extension (CRE) tensile testing machine, the method measures the breaking strength of a pocket's bar-tack reinforcement. Comprehensive reporting includes the breaking strength, the specific mode of failure, and the exact location where fabric or seam rupture occurs. Both inch-pound and SI units are supported, ensuring global applicability in the apparel and textile industries.
Key Topics
- Pocket reinforcement testing - Analysis of bar-tacking effectiveness in garment pockets.
- Grab procedures - Specialized tensile procedures focusing on the central width of the specimen.
- Localized weakness detection - Identification of vulnerable points in pocket constructions.
- Safety and preparation - Emphasis on proper equipment handling and laboratory safety practices.
- Comprehensive reporting - Documentation of test results, including failure mode and location.
Applications
The ASTM D7506/D7506M-17(2021) standard is widely used for:
Quality assurance in garment manufacturing
- Verifying the strength of bar-tacks in pockets to prevent premature failure during use.
- Ensuring compliance with durability requirements in high-stress areas of clothing, such as jeans and workwear.
Textile product development
- Comparing reinforcement techniques during design prototyping.
- Optimizing material selection and construction methods for pocket areas.
Supply chain compliance and audits
- Standardized strength testing for global apparel brands and textile supply chains.
- Meeting customer and regulatory requirements across different markets.
Laboratory and research purposes
- Providing consistent methodology for fabric and seam testing in educational and technical research.
Related Standards
When implementing or referencing ASTM D7506/D7506M-17(2021), consider its relationship with other relevant textile testing and terminology standards such as:
- ASTM D5034 - Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)
- ASTM D76/D76M - Specification for Tensile Testing Machines for Textiles
- ASTM D123 - Terminology Relating to Textiles
- ASTM D1776/D1776M - Practice for Conditioning and Testing Textiles
These referenced documents provide additional guidance on textile definitions, equipment calibration, specimen preparation, and environmental conditioning, ensuring reliable and reproducible results.
Practical Value
Adherence to ASTM D7506/D7506M-17(2021) provides significant benefits:
- Enhanced product durability and consumer satisfaction by verifying the robustness of pocket reinforcements.
- Standardized, comparable results that foster clear communication between manufacturers, brands, and testing labs worldwide.
- Reduced returns and warranty claims due to improved garment performance in stress-prone areas.
- Support for continuous improvement in apparel construction and textile engineering practices.
By following this standard, organizations demonstrate commitment to quality assurance and international compliance in garment production, helping to maintain brand reputation and meet the expectations of global consumers.
Frequently Asked Questions
ASTM D7506/D7506M-17(2021) is a standard published by ASTM International. Its full title is "Standard Test Method for Pocket Reinforcement". This standard covers: ABSTRACT This test method employs the grab procedures used to determine localized weakness due to bar-tacking in the pocket areas of all types of garments such as shirts, including the side or back pockets of trousers, pants, or jeans. To test its breaking strength, a specimen of the pocket area shall be mounted centrally in clamps of a constant-rate-of-extension tensile testing machine and a force shall be applied until the specimen breaks. Reports on the test results shall include the mode of failure and the location of where the break occurs. SCOPE 1.1 This test method utilizes the grab procedures to determine localized weakness due to bar-tacking in the pocket areas of all types of garments. This can be utilized to test bar-tacking in the pockets of shirts, as well as side or back pockets of trousers, pants, or jeans. 1.2 This test method provides the values in both inch-pound and SI units. Inch-pound units is the technically correct name for the customary units used in the United States. SI units is the technically correct name for the system of metric units know as the International System of Units. The values stated in either acceptable metric 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 in any way. 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.
ABSTRACT This test method employs the grab procedures used to determine localized weakness due to bar-tacking in the pocket areas of all types of garments such as shirts, including the side or back pockets of trousers, pants, or jeans. To test its breaking strength, a specimen of the pocket area shall be mounted centrally in clamps of a constant-rate-of-extension tensile testing machine and a force shall be applied until the specimen breaks. Reports on the test results shall include the mode of failure and the location of where the break occurs. SCOPE 1.1 This test method utilizes the grab procedures to determine localized weakness due to bar-tacking in the pocket areas of all types of garments. This can be utilized to test bar-tacking in the pockets of shirts, as well as side or back pockets of trousers, pants, or jeans. 1.2 This test method provides the values in both inch-pound and SI units. Inch-pound units is the technically correct name for the customary units used in the United States. SI units is the technically correct name for the system of metric units know as the International System of Units. The values stated in either acceptable metric 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 in any way. 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.
ASTM D7506/D7506M-17(2021) is classified under the following ICS (International Classification for Standards) categories: 61.020 - Clothes. The ICS classification helps identify the subject area and facilitates finding related standards.
ASTM D7506/D7506M-17(2021) has the following relationships with other standards: It is inter standard links to ASTM D1776/D1776M-20, ASTM D123-17, ASTM D1776/D1776M-16, ASTM D123-15b, ASTM D123-15a, ASTM D123-15, ASTM D1776/D1776M-15, ASTM D123-13ae1, ASTM D123-13a, ASTM D123-13, ASTM D123-12e1, ASTM D123-12, ASTM D76/D76M-11, ASTM D123-09e2, ASTM D123-09e1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ASTM D7506/D7506M-17(2021) is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
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: D7506/D7506M − 17 (Reapproved 2021)
Standard Test Method for
Pocket Reinforcement
This standard is issued under the fixed designation D7506/D7506M; 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 D5034 TestMethodforBreakingStrengthandElongationof
Textile Fabrics (Grab Test)
1.1 This test method utilizes the grab procedures to deter-
mine localized weakness due to bar-tacking in the pocket areas
3. Terminology
of all types of garments.This can be utilized to test bar-tacking
3.1 Definitions
in the pockets of shirts, as well as side or back pockets of
3.1.1 constant-rate-of-extension tensile testing machine
trousers, pants, or jeans.
(CRE), n—a testing machine in which the rate of increase of
1.2 This test method provides the values in both inch-pound
specimen length is uniform with time.
and SI units. Inch-pound units is the technically correct name
3.1.2 grab test, n—in fabric testing, a tensile test in which
forthecustomaryunitsusedintheUnitedStates.SIunitsisthe
the central part of the width of the specimen is gripped in the
technicallycorrectnameforthesystemofmetricunitsknowas
clamps.
the International System of Units. The values stated in either
acceptable metric units or in other units shall be regarded 3.1.3 tensile test, n—in textiles, a test in which a textile
separately as standard. The values stated in each system may material is stretched in one direction to determine the load
not be exact equivalents; therefore, each system must be used elongation characteristics, in the breaking load, or the breaking
independently of the other, without combining in any way. elongation.
1.3 This standard does not purport to address all of the
3.1.4 For definitions of other terms used in this test method,
safety concerns, if any, associated with its use. It is the
refer to Terminology D123.
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4.1 A specimen of the pocket area with the bar-tacking is
1.4 This international standard was developed in accor-
mounted centrally in clamps of the tensile strength machine
dance with internationally recognized principles on standard-
and a force is applied until the specimen breaks.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5. Apparatus
mendations issued by the World Trade Organization Technical
5.1 Constant-rate-of-extension (CRE) tensile testing
Barriers to Trade (TBT) Committee.
machine, as used in Test Method D5034, conforming to
Specification D76/D76M.
2. Referenced Documents
5.2 Clamps and jaws, rubber faced or other gripping
2.1 ASTM Standards:
surface—jaw faces must measure 25 mm 6 1 mm [1.0 in. 6
D76/D76M Specification for Tensile Testing Machines for
0.02 in.] wide at least 25 mm [1.0 in.], perpendicular to the
Textiles
direction of the force, and not less than 25 mm nor more than
D123 Terminology Relating to Textiles
50mm[1.0 in.normorethan2.0in.].Theback,orbottom,jaw
D1776/D1776M Practice for Conditioning and Testing Tex-
face of each clamp shall be at least as large as its mate. Use of
tiles
a larger face for the second jaw reduces the problem of front
and back jaw face misalignment.
This test method is under the jurisdiction ofASTM Committee D13 on Textiles
6. Safety Precautions
and is the direct responsibility of Subcommittee D13.54 on Subassemblies.
Current edition approved July 1, 2021. Published August 2021. Originally
6.1 It is the users responsibility to use safe and proper
approved in 2009. Last previous edition approved in 2017 as D7506/D7506M-17.
techniques when handling or using any of the equipment
DOI: 10.1520/D7506_D7506M-17R21.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or mentioned.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.2 Good laboratory practice should be followed. Wear
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. safety glasses in all laboratory test rooms.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7506/D7506M − 17 (2021)
FIG. 1 Cutting: Patch Pocket
FIG. 3 C
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