ASTM D3936-21

Standard Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering

SIGNIFICANCE AND USE
5.1 This test method is used for acceptance testing of commercial shipments. Comparative tests as directed in 5.2 may be advisable.  
5.2 In a case of a dispute arising from differences in reported test results when using this test method, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test samples that are as homogenous as possible and are from a lot of material of the type in question. The test samples then should be assigned randomly in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using a statistical test for unpaired data and an acceptable probability level chosen by the two parties before testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results with consideration to the known bias.  
5.3 This test method is useful to evaluate quality and cost control during the manufacture of pile yarn floor covering. Both appearance and performance of the pile floor covering can be affected by delamination of the secondary backing.
SCOPE
1.1 This test method covers the measurement of the resistance to delamination of the secondary backing applied to some pile yarn floor coverings.  
1.2 This test method is applicable to all backings including natural manufactured fibers or attached cushion.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
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: 31-Dec-2020
• ICS: 97.150 - Floor coverings
• Technical Committee: D13 - Textiles
• Drafting Committee: D13.21 - Pile Floor Coverings

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: D3936 − 21
Standard Test Method for
Resistance to Delamination of the Secondary Backing of
1
Pile Yarn Floor Covering
This standard is issued under the fixed designation D3936; 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 ASTM Test Methods
1.1 This test method covers the measurement of the resis-
3. Terminology
tancetodelaminationofthesecondarybackingappliedtosome
pile yarn floor coverings.
3.1 For all other terminology related to Pile Floor
Coverings, D13.21, see Terminology D5684.
1.2 This test method is applicable to all backings including
3.1.1 The following terms are relevant to this standard:
natural manufactured fibers or attached cushion.
attached cushion, carpet, constant-rate-of-extension, finished,
1.3 The values stated in inch-pound units are to be regarded
finished pile yarn floor covering, floor covering, peak force,
as standard. The values given in parentheses are mathematical
pile, pile yarn floor covering, resistance to delamination,
conversions to SI units that are provided for information only
secondary backing, textile floor covering, tufted fabric.
and are not considered standard.
3.2 For all other terminology related to textiles, see Termi-
1.4 This standard does not purport to address all of the
nology D123.
safety concerns, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety, health, and environmental practices and deter-
4.1 A specimen is separated manually for a distance of
mine the applicability of regulatory limitations prior to use.
about 1.5 in. (38 mm). Each layer then is placed in opposing
1.5 This international standard was developed in accor-
clamps of a tensile tester, and the force to continue the
dance with internationally recognized principles on standard-
separation for a specified distance is recorded. The peak forces
ization established in the Decision on Principles for the
in specified length intervals are averaged and the resistance to
Development of International Standards, Guides and Recom-
delamination calculated.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
5. Significance and Use
2. Referenced Documents
5.1 This test method is used for acceptance testing of
2
2.1 ASTM Standards:
commercial shipments. Comparative tests as directed in 5.2
D76 Specification for Tensile Testing Machines for Textiles
may be advisable.
D123 Terminology Relating to Textiles
5.2 In a case of a dispute arising from differences in
D1776 Practice for Conditioning and Testing Textiles
reported test results when using this test method, the purchaser
D4697 Guide for Maintaining Test Methods in the User’s
and the supplier should conduct comparative tests to determine
3
Laboratory (Withdrawn 2009)
if there is a statistical bias between their laboratories. Compe-
D5684 Terminology Relating to Pile Floor Coverings
tent statistical assistance is recommended for the investigation
E177 Practice for Use of the Terms Precision and Bias in
of bias. As a minimum, the two parties should take a group of
test samples that are as homogenous as possible and are from
1 a lot of material of the type in question. The test samples then
This test method is under the jurisdiction ofASTM Committee D13 on Textiles
and is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.
should be assigned randomly in equal numbers to each
Current edition approved Jan. 1, 2021. Published January 2021. Originally
laboratory for testing. The average results from the two
approved in 1980. Last previous edition approved in 2017 as D3936 – 17. DOI:
laboratories should be compared using a statistical test for
10.1520/D3936-21.
2
unpaireddataandanacceptableprobabilitylevelchosenbythe
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
two parties before testing is begun. If a bias is found, either its
Standards volume information, refer to the standard’s Document Summary page on
cause must be found and corrected or the purchaser and the
the ASTM website.
3
supplier must agree to interpret future test results with consid-
The last approved version of this historical standard is referenced on
www.astm.org. eration to the known bias.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West C
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3936 − 17 D3936 − 21
Standard Test Method for
Resistance to Delamination of the Secondary Backing of
1
Pile Yarn Floor Covering
This standard is issued under the fixed designation D3936; 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
1.1 This test method covers the measurement of the resistance to delamination of the secondary backing applied to some pile yarn
floor coverings.
1.2 This test method is applicable to all backings including natural manufactured fibers or attached cushion.
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
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 safety, health, and healthenvironmental 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D76 Specification for Tensile Testing Machines for Textiles
D123 Terminology Relating to Textiles
D1776 Practice for Conditioning and Testing Textiles
3
D4697 Guide for Maintaining Test Methods in the User’s Laboratory (Withdrawn 2009)
D5684 Terminology Relating to Pile Floor Coverings
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
3. Terminology
3.1 For all other terminology related to Pile Floor Coverings, D13.21, see Terminology D5684.
1
This test method is under the jurisdiction of ASTM Committee D13 on Textiles and is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.
Current edition approved March 1, 2017Jan. 1, 2021. Published April 2017January 2021. Originally approved in 1980. Last previous edition approved in 20122017 as
D3936 – 12.D3936 – 17. DOI: 10.1520/D3936-17.10.1520/D3936-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3936 − 21
3.1.1 The following terms are relevant to this standard: attached cushion, carpet, constant-rate-of-extension, finished, finished pile
yarn floor covering, floor covering, peak force, pile, pile yarn floor covering, resistance to delamination, secondary backing, textile
floor covering, tufted fabric.
3.2 For all other terminology related to textiles, see Terminology D123.
4. Summary of Test Method
4.1 A specimen is separated manually for a distance of about 1.5 in. (38 mm). Each layer then is placed in opposing clamps of
a tensile tester, and the force to continue the separation for a specified distance is recorded. The peak forces in specified length
intervals are averaged and the resistance to delamination calculated.
5. Significance and Use
5.1 This test method is used for acceptance testing of commercial shipments. Comparative tests as directed in 5.2 may be
advisable.
5.2 In a case of a dispute arising from differences in reported test results when using this test method, the purchaser and the
supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical
assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test samples that
are as homogenous as possible and are from a lot of material of the type in question. The test samples then should be assigned
randomly in equal numbers to each laboratory for testing. The average results from the two laboratories should be compa
...