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ASTM D5684-19

(Terminology)

Standard Terminology Relating to Pile Floor Coverings

Standard Terminology Relating to Pile Floor Coverings

SCOPE
1.1 This terminology is a compilation of all terminology developed by Subcommittee D13.21 on Pile Floor Covering.  
1.2 This terminology is unique to the pile floor covering industry. Meanings if the same terms used outside the industry can be found in other compilations or in other dictionaries of general usage.  
1.3 In addition to being a specialized dictionary, D5684 is also useful for managing the Terminology of the Subcommittee.  
1.4 Terms listed under the jurisdiction of Subcommittee D13.21.  
1.5 For definitions of other textile terms see Terminology D123.  
1.6 This terminology is a compilation of all terminology developed by Subcommittee D13.21 on Pile Floor Covering.  
1.7 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
Historical
Publication Date
14-May-2019
ICS
97.150 - Floor coverings
Technical Committee
D13 - Textiles
Drafting Committee
D13.21 - Pile Floor Coverings
Current Stage
Ref Project

Relations

Replaces
ASTM D5684-12 - Standard Terminology Relating to Pile Floor Coverings
Effective Date
15-May-2019
Replaced By
ASTM D5684-19a - Standard Terminology Relating to Pile Floor Coverings
Effective Date
01-Jul-2019
Referred By
ASTM D7267-19a - Standard Test Method for Edge Ravel Resistance of Finished Loop Pile, Pile Yarn Floor Covering
Effective Date
15-May-2019
Referred By
ASTM D4850-23 - Standard Terminology Relating to Fabrics and Fabric Test Methods
Effective Date
15-May-2019
Referred By
ASTM D6719-22e1 - Standard Guide for Standard Test Methods and Practices for Evaluating Pile Yarn Floor Covering
Effective Date
15-May-2019
Referred By
ASTM D5848-20 - Standard Test Method for Mass Per Unit Area of Pile Yarn Floor Coverings
Effective Date
15-May-2019
Referred By
ASTM D6119-19 - Standard Practice for Creating Surface Appearance Changes in Pile Yarn Floor Covering from Foot Traffic
Effective Date
15-May-2019
Referred By
ASTM D6540-22 - Standard Test Method for Accelerated Soiling of Pile Yarn Floor Covering
Effective Date
15-May-2019
Referred By
ASTM D7570-17(2021)e1 - Standard Test Method for Evaluation of Dimensional Stability of Pile Yarn Floor Covering
Effective Date
15-May-2019
Referred By
ASTM D6859-18 - Standard Test Method for Pile Thickness of Finished Level Pile Yarn Floor Coverings
Effective Date
15-May-2019
Referred By
ASTM D2859-16(2021) - Standard Test Method for Ignition Characteristics of Finished Textile Floor Covering Materials
Effective Date
15-May-2019
Referred By
ASTM D7241-22 - Standard Test Method for Pile Thickness of Finished Multilevel Pile Yarn Floor Covering
Effective Date
15-May-2019
Referred By
ASTM D5823-19 - Standard Test Method for Tuft Height of Pile Floor Coverings
Effective Date
15-May-2019
Referred By
ASTM D1335-21 - Standard Test Method for Tuft Bind of Pile Yarn Floor Coverings
Effective Date
15-May-2019
Referred By
ASTM F3383-19a - Standard Test Method for Filament Bind of Single Fibers in Synthetic Turf
Effective Date
15-May-2019

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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D5684 − 19
Standard Terminology
1
Relating to Pile Floor Coverings
This standard is issued under the fixed designation D5684; 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 D5251 Practice for the Operation of the Tetrapod Walker
3
Drum Tester (Withdrawn 2014)
1.1 This terminology is a compilation of all terminology
D5252 Practice for the Operation of the Hexapod Tumble
developed by Subcommittee D13.21 on Pile Floor Covering.
Drum Tester
1.2 This terminology is unique to the pile floor covering
D5417 Practice for Operation of the Vettermann Drum
industry. Meanings if the same terms used outside the industry
Tester
can be found in other compilations or in other dictionaries of
D5793 Test Method for Binding Sites per Unit Length or
general usage.
Width of Pile Yarn Floor Coverings
1.3 In addition to being a specialized dictionary, D5684 is D5823 Test Method for Tuft Height of Pile Floor Coverings
D5848 Test Method for Mass Per Unit Area of Pile Yarn
also useful for managing the Terminology of the Subcommit-
3
tee. Floor Coverings (Withdrawn 2019)
D6119 Practice for Creating SurfaceAppearance Changes in
1.4 Terms listed under the jurisdiction of Subcommittee
Pile Yarn Floor Covering from Foot Traffic
D13.21.
D6283 Test Method for Tuft Element Length of Uncoated
1.5 For definitions of other textile terms see Terminology
Pile Yarn Floor Coverings
D123.
D6540 Test Method for Accelerated Soiling of Pile Yarn
Floor Covering
1.6 This terminology is a compilation of all terminology
D6719 Guide for Standard Test Methods and Practices for
developed by Subcommittee D13.21 on Pile Floor Covering.
Evaluating Pile Yarn Floor Covering
1.7 This international standard was developed in accor-
D6859 Test Method for Pile Thickness of Finished Level
dance with internationally recognized principles on standard-
Pile Yarn Floor Coverings
ization established in the Decision on Principles for the
D6962 Practice for Operation of a Roller Chair Tester for
Development of International Standards, Guides and Recom-
Pile Yarn Floor Coverings
mendations issued by the World Trade Organization Technical
D7241 Test Method for Pile Thickness of Finished Multi-
Barriers to Trade (TBT) Committee.
level Pile Yarn Floor Covering
D7267 Test Method for Edge Ravel Resistance of Finished
2. Referenced Documents
Loop Pile, Pile Yarn Floor Covering
2
2.1 ASTM Standards:
D7330 Test Method for Assessment of Surface Appearance
D123 Terminology Relating to Textiles
ChangeinPileFloorCoveringsUsingStandardReference
D1335 Test Method for Tuft Bind of Pile Yarn Floor
Scales
Coverings
3. Terminology
D2646 GuideforBackingFabricCharacteristicsofPileYarn
Floor Coverings
3.1 Definitions:
D3936 Test Method for Resistance to Delamination of the
attached cushion, n—for pile yarn floor covering, a material,
Secondary Backing of Pile Yarn Floor Covering
bonded to the backing fabric side of a pile yarn floor
covering to provide additional dimensional stability,
thickness, and padding.
1 DISCUSSION—Suchproductsasfoam,rubber,andurethaneareusedas
ThisterminologyisunderthejurisdictionofASTMCommitteeD13onTextiles
and is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings. attached cushion. D3936
Current edition approved May 15, 2019. Published June 2019. Originally
approved in 1995. Last previous edition approved in 2012 as D5684 – 12. DOI: back coating, n—in textile floor covering, an adhesive com-
10.1520/D5684-19.
poundappliedforsuchpurposeaslockingpileyarntuftsinto
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
3
Standardsvolume information, refer tot he standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D5684 − 19
a carpet backing, bonding a secondary backing to a primary crush, n—in pile yarn floor coverings, loss of tuft definition
backing, increasing fabric body or stiffness and increasing due to entanglement and compression of pile fibers. D6119
dimensional stability. D5793, D5848
cut pile yarn floor covering, n—a pile floor covering in which
the pile is composed of adjacent tuft elements that are
backing , n—in pile yarn floor covering, all materials in a pile
separated or cut (see Fig. 1). D1335, D5823, D6283
floor covering other than the pile yarn. D5793, D5848,
D6719
...

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: D5684 − 12 D5684 − 19
Standard Terminology
1
Relating to Pile Floor Coverings
This standard is issued under the fixed designation D5684; 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 terminology is a compilation of all terminology developed by Subcommittee D13.21 on Pile Floor Covering.
1.2 This terminology is unique to the pile floor covering industry. Meanings if the same terms used outside the industry can be
found in other compilations or in other dictionaries of general usage.
1.3 In addition to being a specialized dictionary, D5684 is also useful for managing the Terminology of the Subcommittee.
1.4 Terms listed under the jurisdiction of Subcommittee D13.21.
1.5 For definitions of other textile terms see Terminology D123.
1.6 This terminology is a compilation of all terminology developed by Subcommittee D13.21 on Pile Floor Covering.
1.7 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:
D123 Terminology Relating to Textiles
D1335 Test Method for Tuft Bind of Pile Yarn Floor Coverings
D2646 Guide for Backing Fabric Characteristics of Pile Yarn Floor Coverings
D3936 Test Method for Resistance to Delamination of the Secondary Backing of Pile Yarn Floor Covering
3
D5251 Practice for the Operation of the Tetrapod Walker Drum Tester (Withdrawn 2014)
D5252 Practice for the Operation of the Hexapod Tumble Drum Tester
D5417 Practice for Operation of the Vettermann Drum Tester
D5793 Test Method for Binding Sites per Unit Length or Width of Pile Yarn Floor Coverings
D5823 Test Method for Tuft Height of Pile Floor Coverings
3
D5848 Test Method for Mass Per Unit Area of Pile Yarn Floor Coverings (Withdrawn 2019)
D6119 Practice for Creating Surface Appearance Changes in Pile Yarn Floor Covering from Foot Traffic
D6283 Test Method for Tuft Element Length of Uncoated Pile Yarn Floor Coverings
D6540 Test Method for Accelerated Soiling of Pile Yarn Floor Covering
D6719 Guide for Standard Test Methods and Practices for Evaluating Pile Yarn Floor Covering
D6859 Test Method for Pile Thickness of Finished Level Pile Yarn Floor Coverings
D6962 Practice for Operation of a Roller Chair Tester for Pile Yarn Floor Coverings
D7241 Test Method for Pile Thickness of Finished Multilevel Pile Yarn Floor Covering
D7267 Test Method for Edge Ravel Resistance of Finished Loop Pile, Pile Yarn Floor Covering
D7330 Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales
3. Terminology
3.1 Definitions:
1
This terminology 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 July 1, 2012May 15, 2019. Published August 2012June 2019. Originally approved in 1995. Last previous edition approved in 20102012 as
D5684 – 10.D5684 – 12. DOI: 10.1520/D5684-12.10.1520/D5684-19.
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
Standardsvolume information, refer tot he 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 ----------------------
D5684 − 19
attached cushion, n—for pile yarn floor covering, a material, bonded to the backing fabric side of a pile yarn floor covering to
provide additional dimensional stability, thickness, and padding.
DISCUSSION—
Such products as foam, rubber, and urethane are used as attached cushion. D3936
back coating, n—in textile floor covering, an adhesive compound applied for such purpose as locking pile yarn tufts into a carpet
backing, bonding a secondary backing to a primary backing, increasing fabric body or stiffness and increasing dimensional
stability. D5793, D5848
backing , n—in pile yarn floor c
...

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ASTM D7330-22(Test Method)
Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales

SIGNIFICANCE AND USE
5.1 The determination of surface appearance change in pile yarn floor covering is useful in quality and cost control during manufacture of pile yarn floor covering. This test method is considered satisfactory for acceptance testing of commercial shipments because current estimates of between laboratory precision are acceptable, and this test method is commonly used in trade for acceptance testing.  
5.2 If there are differences of practical significance between reported test results for two laboratories (or more), comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. As a minimum, use the samples for such comparative tests that are as homogenous as possible, drawn from the same lot of material as the samples that resulted in disparate results during initial testing and randomly assigned in equal numbers to each laboratory. The test results from the laboratories involved shall be compared using a statistical test for unpaired data, 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 for that material must be adjusted in consideration of the known bias.
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1.1 This test method covers the assessment of changes of surface appearance of pile floor coverings after exposure to actual or simulated foot traffic. This test method applies to pile yarn floor coverings that are, or have been, installed; laboratory floor-trafficked samples; or textiles floor coverings trafficked by mechanical traffic simulators. The subjective assessment is facilitated by use of reference scales that are based on digital images of representative pile yarn floor covering styles and constructions.  
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.  
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5.1 This test method is useful in quality and cost control during manufacture. Both appearance and performance of pile yarn floor coverings can be affected by the number of binding sites per length and width.  
5.2 This test method is considered satisfactory for acceptance testing of commercial shipments because current estimates of between-laboratory precision are acceptable and the method is 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 there is statistical bias between them using competent statistical assistance. As a minimum, use test samples for such comparative tests that are as homogeneous as possible, drawn form the same lot of material as the samples that resulted in the disparate results during initial testing, and that are randomly assigned in equal numbers to each laboratory for testing. The test results from the 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 for that material must be adjusted in consideration of the know bias.
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1.1 This test method describes the measurement of the number of binding sites per unit length or width of machine-made, woven, knitted, and tufted pile yarn floor covering both before and after adhesive backing application.  
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.  
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SIGNIFICANCE AND USE
5.1 The determination of pile thickness of multilevel pile yarn floor covering is useful in quality and cost control during manufacture of pile yarn floor covering. The appearance and performance may be affected by changes in pile thickness of pile yarn floor coverings. This test method is considered satisfactory for acceptance testing of commercial shipments because current estimates of between laboratory precision are acceptable, and this test method is commonly used in the trade for acceptance testing.  
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1.2 This test method is applicable only to finished multilevel loop pile constructions.
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SIGNIFICANCE AND USE
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ASTM D6540-22(Test Method)
Standard Test Method for Accelerated Soiling of Pile Yarn Floor Covering

SIGNIFICANCE AND USE
5.1 This test method may be used to soil test specimens in the absence of abrasive wear and texture changes under controlled conditions using a standard synthetic soil, or as a preliminary step to other procedures.  
5.2 This test method will provide a uniformly soiled test specimen to evaluate, is reproducible (see section 11), and is economical for Testing Laboratories.  
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1.1 This test method describes the equipment, and the test method for assessing the propensity of pile yarn floor coverings to soiling in the absence of abrasive wear and texture changes, using a standard synthetic soil composition.  
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SIGNIFICANCE AND USE
4.1 This guide is useful to select test methods or practices, or both, that are commonly used in industry for evaluating pile yarn floor covering. Refer to the test method or practice cited for the property of interest for significance and use statements.
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1.1 This guide provides users with an index of procedures in the form of test methods, practices, and related documents that are currently used in industry for determination of properties of pile yarn floor covering. This guide is not considered as all-inclusive for testing procedures related to pile yarn floor covering.  
1.1.1 It is the responsibility of the user to choose from this guide those procedures that provide test information on properties of interest for pile yarn floor covering that relate to its physical and esthetic properties and performance.  
1.1.2 Procedures for properties appear in the following sections:    
Property  
Section  
Surface Appearance Change  
8.1, 8.2, 8.3, 8.4, 8.31, and 8.35  
Antimicrobial  
8.5  
Binding Sites  
8.6  
Backing Characteristics  
8.7  
Colorfastness to Light, Crocking,
Ozone, Water, and Oxides
of Nitrogen  
8.8 – 8.12  
Carpets, Cleaning  
8.13 and 8.14  
Conditioning  
7  
Delamination Resistance  
8.15  
Fiber Analysis  
8.16  
Flammability  
8.17 – 8.20  
Pile Thickness  
8.21  
Mass per Unit Area  
8.22  
Soiling  
8.23 – 8.25  
Stain Resistance  
8.26  
Static  
8.27  
Tuft Bind  
8.28  
Tuft Height  
8.29  
Tuft Element Length  
8.30  
Durability  
8.32  
Edge Ravel  
8.33  
Dimensional Stability  
8.34  
Fluorine Content  
8.36  
Colorfastness to Sodium  
8.37  
Installation of Commercial Carpet  
8.38  
Installation of Residential Carpet  
8.39  
Maintenance and Cleaning
of Commercial Carpet  
8.40  
Maintenance and Cleaning
of Residential Carpet  
8.41  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are non-rationalized mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.2.1 Some of the listed procedures may cite other units as standard. In this event, language of the procedure is controlling.  
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SIGNIFICANCE AND USE
5.1 The determination of dimensional change of pile yarn floor covering is useful in quality and cost control during manufacture of pile yarn floor covering. The appearance and performance may be affected by the changes in the dimensions of pile yarn floor covering. This test method is considered satisfactory for acceptance testing of commercial shipment because current estimates of between laboratory precision are acceptable, and this method is commonly used in the trade for acceptance testing.  
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SCOPE
1.1 This test method covers the determination of dimensional changes in the lengthwise and width-wise direction and distortion likely to occur when pile floor coverings are exposed to various conditions of moisture and heat. This method is applicable to all pile floor coverings including carpet module form.  
1.2 This method is applicable to machine made pile yarn floor covering.  
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ASTM D5417-21(Practice)
Standard Practice for Operation of the Vettermann Drum Tester

SIGNIFICANCE AND USE
5.1 This equipment may be used to bring about the changes in texture on the surface of pile floor covering caused by mechanical action.  
5.2 The acceptance criteria of this practice shall be set by mutual agreement between the purchaser and the supplier.
SCOPE
1.1 This practice describes the equipment and operation of the Vettermann drum tester for testing pile yarn floor covering to produce changes in appearance and color due to changes in surface structure by mechanical action.  
1.2 This practice is only applicable for use in testing unused pile floor covering of all types. It is not applicable for use in testing used pile yarn floor coverings.  
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.

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ASTM
ASTM D1335-21(Test Method)
Standard Test Method for Tuft Bind of Pile Yarn Floor Coverings

SIGNIFICANCE AND USE
5.1 Test Method D1335 for tuft bind of pile yarn floor coverings is being used for acceptance testing of commercial shipments. Comparative tests as directed in 5.1.1 may be advisable.  
5.1.1 In case of a dispute arising from differences in reported test results 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 from the investigation of bias. As a minimum, the two parties should take a group of test samples that are homogeneous as possible and are from a lot of material of the type in question. The test samples should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using appropriate statistical analysis, and a probability level chosen by the two parties before testing 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.  
5.2 The satisfactory performance of a pile yarn floor covering depends to a considerable extent on the maintenance of its original appearance. In a cut pile yarn floor covering an inadequate tuft bind may result in complete loss of pile in areas exposed to severe wear. In a looped pile yarn floor covering with inadequate tuft bind the pile loops may be pulled out to form unsightly long loops which may be hazardous.
SCOPE
1.1 This test method covers the measurement of force required to pull or break a tuft from a pile floor covering sample.  
1.2 This test method is applicable to both cut and loop pile yarn floor covering.  
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.

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ASTM
ASTM D3936-21(Test Method)
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.

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