ASTM D7267-19a
(Test Method)Standard Test Method for Edge Ravel Resistance of Finished Loop Pile, Pile Yarn Floor Covering
Standard Test Method for Edge Ravel Resistance of Finished Loop Pile, Pile Yarn Floor Covering
SIGNIFICANCE AND USE
5.1 The satisfactory performance of a loop pile floor covering depends, to a considerable extent, on the installation and maintenance of the product. A loop pile floor covering with inadequate edge ravel strength may result in loops pulling out from the backing, resulting in an aesthetically displeasing appearance. Tuft rows located at the seam of a loop pile floor covering are the most susceptible to raveling.
SCOPE
1.1 This test method covers the determination of the force required to ravel a straight sewn yarn from the edge of a loop pile, textile floor covering.
1.2 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.
1.3 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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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: D7267 − 19a
Standard Test Method for
Edge Ravel Resistance of Finished Loop Pile, Pile Yarn
1
Floor Covering
This standard is issued under the fixed designation D7267; 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 covering, floor covering, loop pile yarn floor covering, pile,
pile yarn floor covering, textile floor covering, tuft, tuft leg,
1.1 This test method covers the determination of the force
tufted fabric, edge ravel.
required to ravel a straight sewn yarn from the edge of a loop
pile, textile floor covering.
3.3 For definition of other terms related to textiles, refer to
Terminology D123.
1.2 The values stated in inch-pound units are to be regarded
as standard. The values given in parentheses are mathematical
4. Summary of Test Method
conversions to SI units that are provided for information only
and are not considered standard.
4.1 A yarn end is raveled from a straight sewn, loop pile
textile floor covering using a tensile testing machine.The force
1.3 This standard does not purport to address all of the
required to pull the tufted yarn from the edge of a tufted loop
safety concerns, if any, associated with its use. It is the
pilefloorcoveringismeasuredandrecorded.Therequiredload
responsibility of the user of this standard to establish appro-
orforcetoremovetheyarnfromthespecimeniscalculatedand
priate safety, health, and environmental practices and deter-
defined as “edge ravel strength.” Floor covering installation
mine the applicability of regulatory limitations prior to use.
experts recommend using a seam sealer to secure the cut edges
1.4 This international standard was developed in accor-
of a textile floor covering.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5. Significance and Use
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
5.1 The satisfactory performance of a loop pile floor cover-
Barriers to Trade (TBT) Committee.
ing depends, to a considerable extent, on the installation and
maintenance of the product. A loop pile floor covering with
2. Referenced Documents
inadequate edge ravel strength may result in loops pulling out
2
from the backing, resulting in an aesthetically displeasing
2.1 ASTM Standards:
D76 Specification for Tensile Testing Machines for Textiles appearance. Tuft rows located at the seam of a loop pile floor
D123 Terminology Relating to Textiles covering are the most susceptible to raveling.
D1776 Practice for Conditioning and Testing Textiles
D5684 Terminology Relating to Pile Floor Coverings
6. Apparatus
6.1 Tensile Testing Machine—A constant-rate-of extension
3. Terminology
(CRE) type conforming to Specification D76, a constant rate of
3.1 For definitions of terms relating to pile floor coverings,
speed of 12 6 0.5 in./min (300 6 10 mm/min) is required.
refer to Terminology D5684.
Full-scale loads range from 1 to 10 lb (0.545 to 4.53 kg) are
generally adequate. A constant rate of traverse (CRT) type
3.2 Thefollowingtermsarerelevanttothisstandard:carpet,
tensile testing machine conforming to the Specification D76
constant-rate-of-extension, finished, finished pile yarn floor
and operated at the same speed is permitted. There may be no
overall correlation with CRE-type and CRT-type testing ma-
1
chines. Consequently, the two machines cannot be used inter-
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.
changeably. In the case of controversy, the CRE-type testing
Current edition approved May 1, 2019. Published June 2019. Originally
machine shall prevail.
approved in 2006. Last previous edition approved in 2019 as D7267–19. DOI:
10.1520/D7267-19A.
6.2 Clamps and Jaw Faces—The use of hydraulic or
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
pneumatic, serrated or padded face, clamping systems with a
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
minimum of 1 by 3 in. (25 by 75 mm) are recommended to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. reduce specimen slippage. The faces shall be parallel and have
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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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: D7267 − 19 D7267 − 19a
Standard Test Method for
Edge Ravel Resistance of Finished Loop Pile, Pile Yarn
1
Floor Covering
This standard is issued under the fixed designation D7267; 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 determination of the force required to ravel a straight sewn yarn from the edge of a loop pile,
textile floor covering.
1.2 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.
1.3 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.
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
D5684 Terminology Relating to Pile Floor Coverings
3. Terminology
3.1 For definitions of terms relating to pile floor coverings, refer to Terminology D5684.
3.2 The following terms are relevant to this standard: carpet, constant-rate-of-extension, finished, finished pile yarn floor
covering, floor covering, loop pile yarn floor covering, pile, pile yarn floor covering, textile floor covering, tuft, tuft leg, tufted
fabric, edge ravel.
3.3 For definition of other terms related to textiles, refer to Terminology D123.
4. Summary of Test Method
4.1 A yarn end is raveled from a straight sewn, loop pile textile floor covering using a tensile testing machine. The force required
to pull the tufted yarn from the edge of a tufted loop pile floor covering is measured and recorded. The required load or force to
remove the yarn from the specimen is calculated and defined as “edge ravel strength.” Floor covering installation experts
recommend using a seam sealer to secure the cut edges of a textile floor covering.
5. Significance and Use
5.1 The satisfactory performance of a loop pile floor covering depends, to a considerable extent, on the installation and
maintenance of the product. A loop pile floor covering with inadequate edge ravel strength may result in loops pulling out from
the backing, resulting in an aesthetically displeasing appearance. Tuft rows located at the seam of a loop pile floor covering are
the most susceptible to raveling.
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 April 1, 2019May 1, 2019. Published May 2019June 2019. Originally approved in 2006. Last previous edition approved in 20132019 as
D7267–13.–19. DOI: 10.1520/D7267-19.10.1520/D7267-19A.
2
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 the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7267 − 19a
6. Apparatus
6.1 Tensile Testing Machine—A constant-rate-of extension (CRE) type conforming to Specification D76, a constant rate of
speed of 12 6 0.5 in./min (300 6 10 mm/min) is required. Full-scale loads range from 1 to 10 lb (0.545 to 4.53 kg) are generally
adequate. A constant rate of traverse (CRT) type tensile testing machine conforming to the Specification D76 and operated at the
same speed is permitted. There may be no overall correlation with CRE-type and CRT-type testing machines. Consequently, the
two machines cannot be used interchangeably. In the case of controversy, the CRE-type testing machine shall pr
...
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