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ASTM D7330-07e1

(Test Method)

Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales

Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales

SIGNIFICANCE AND USE
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.  
If there are differences of practical significance between reported test results for two laboratories ( or more), comparative test 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 is desparate 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.
SCOPE
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 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
30-Apr-2007
ICS
97.150 - Floor coverings
Technical Committee
D13 - Textiles
Drafting Committee
D13.21 - Pile Floor Coverings
Current Stage
Ref Project

Relations

Replaces
ASTM D7330-07 - Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales
Effective Date
01-May-2007
Replaced By
ASTM D7330-11 - Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales
Effective Date
01-Jul-2011
Referred By
ASTM D5253-04(2016) - Standard Terminology Relating to Floor Coverings and Textile Upholstered Furniture
Effective Date
01-May-2007
Referred By
ASTM D6119-19 - Standard Practice for Creating Surface Appearance Changes in Pile Yarn Floor Covering from Foot Traffic
Effective Date
01-May-2007
Referred By
ASTM D5684-19a - Standard Terminology Relating to Pile Floor Coverings
Effective Date
01-May-2007
Referred By
ASTM D6719-22e1 - Standard Guide for Standard Test Methods and Practices for Evaluating Pile Yarn Floor Covering
Effective Date
01-May-2007

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ASTM D7330-07e1 - Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference ScalesASTM D7330-07e1 - Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales
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ASTM D7330-07e1 - Standard Test Method for Assessment of Surface Appearance Change in Pile Floor Coverings Using Standard Reference Scales
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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
´1
Designation:D7330–07
Standard Test Method for
Assessment of Surface Appearance Change in Pile Floor
1
Coverings Using Standard Reference Scales
This standard is issued under the fixed designation D7330; 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
´ NOTE—Added research report footnote to Section 12 editorially in June 2009.
1. Scope E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 This test method covers the assessment of changes of
surface appearance of pile floor coverings after exposure to
3. Terminology
actual or simulated foot traffic. This test method applies to pile
3.1 For definitions of terms relating to Pile Floor Coverings,
yarnfloorcoveringsthatare,orhavebeen,installed;laboratory
refer to the Terminology D5684.
floor-trafficked samples; or textiles floor coverings trafficked
3.2 Thefollowingtermsarerelevanttothisstandard:carpet,
by mechanical traffic simulators. The subjective assessment is
crushing cut pile yarn floor covering, finished, finished pile
facilitated by use of reference scales that are based on digital
yarn floor covering, loss of tuft definition, matting, pile, pile
images of representative pile yarn floor covering styles and
yarn floor covering, textile floor covering.
constructions.
3.3 For definitions of other terms related to textiles, refer to
1.2 This standard does not purport to address all of the
Terminology 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 and health practices and determine the applica-
4.1 The floor covering shall be tested in a mechanical wear
bility of regulatory limitations prior to use.
simulator or tested under controlled laboratory foot traffic tests
2. Referenced Documents referenced in Practices D5251, D5252, D5417, D6119, and
2 D6962. The tested floor covering shall then be assessed for
2.1 ASTM Standards:
surface appearance change by comparing unexposed controls
D123 Terminology Relating to Textiles
to the exposed sample by using the appropriate Appearance
D5251 Practice for the Operation of the Tetrapod Walker
Change Grading Scale.
Drum Tester
D5252 Practice for the Operation of the Hexapod Tumble
5. Significance and Use
Drum Tester
5.1 The determination of surface appearance change in pile
D5417 Practice for Operation of the Vettermann Drum
yarn floor covering is useful in quality and cost control during
Tester
manufacture of pile yarn floor covering. This test method is
D5684 Terminology Relating to Pile Floor Coverings
considered satisfactory for acceptance testing of commercial
D6119 Practice for Creating Surface Appearance Changes
shipments because current estimates of between laboratory
in Pile Yarn Floor Covering from Foot Traffic
precision are acceptable, and this test method is commonly
D6962 Practice for Operation of a Roller Chair Tester for
used in trade for acceptance testing.
Pile Yarn Floor Coverings
5.2 If there are differences of practical significance between
reported test results for two laboratories ( or more), compara-
tive test should be performed to determine if there is a
1
This test method is under the jurisdiction ofASTM Committee D13 onTextiles
statistical bias between them, using competent statistical assis-
and is the direct responsibility of Subcommittee D13.21 on Pile Floor Coverings.
tance. As a minimum, use the samples for such comparative
Current edition approved May 1, 2007. Published June 2007. DOI: 10.1520/
D7330-07E01.
tests that are as homogenous as possible, drawn from the same
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
lot of material as the samples that resulted is desparate results
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
during initial testing and randomly assigned in equal numbers
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. to each laboratory. The test results from the laboratories
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
´1
D7330–07
TABLE 1 Pile Floor Covering Appearance Change Scales
9.5 Each assessor shall grade each specimen independently
Currently Available
of the other assessors.
Scale Description
10. Calculation or Interpretation of Results
CRI-1 Saxony Cut Pile
CRI-2 Berber, Loop Pile
10.1 If specimens are trafficked in machine and cross
CRI-3 Commercial Loop Pile, Low Profile
...

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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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1.2 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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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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Standard Test Method for Binding Sites per Unit Length or Width of Pile Yarn Floor Coverings

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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.
SCOPE
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.  
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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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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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1.1 This test method covers the determination of pile thickness of finished multilevel pile yarn floor covering using a thickness measuring instrument having a stationary surface (platen), a circular pressure foot under specified force, and capable of being moved vertically above the platen.  
1.2 This test method is applicable only to finished multilevel loop pile constructions.
Note 1: Determination of pile thickness of multilevel pile yarn floor coverings was previously contained within Test Method D418. For user convenience, Subcommittee D13.21 subdivided Test Method D418 into separate standards of which this test method is one.  
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SIGNIFICANCE AND USE
5.1 This test method can be useful in characterizing and comparing shrinkage properties of both primary and secondary backing fabrics. 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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1.3 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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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.  
5.3 This test method has been found to give results similar to the actual floor service soiling, but its use is recommended only as a screening test method and not as a replacement for floor testing.  
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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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Standard Guide for Standard Test Methods and Practices for Evaluating Pile Yarn Floor Covering

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.
SCOPE
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
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Carpets, Cleaning  
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Conditioning  
7  
Delamination Resistance  
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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.  
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.  
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ASTM D7570-17(2021)e1(Test Method)
Standard Test Method for Evaluation of Dimensional Stability of Pile Yarn Floor Covering

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.  
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 should 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.
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.  
1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversion 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.  
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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 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 D6283-21(Test Method)
Standard Test Method for Tuft Element Length of Uncoated Pile Yarn Floor Coverings

SIGNIFICANCE AND USE
5.1 The determination of the tuft length of pile yarn floor covering is useful in quality and cost control during the manufacture of pile yarn floor covering. Both appearance and performance can be affected by changes in this characteristic.  
5.2 In case there are disputable differences between reported test results for two or more laboratories, comparative tests should be performed to determine if there is a statistical bias between them, using competent statistical assistance. At a minimum, test samples should be used that are as homogeneous as possible, that are drawn from the material from which disputable test results were obtained, and that are assigned randomly in equal numbers to each laboratory for testing. The test results from the two 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 must be adjusted in consideration of the known bias.
SCOPE
1.1 This test method covers the measurement of tuft length and pile yarn length of uncoated pile floor coverings.  
1.2 Usually the tuft elements measured as directed in this test method will each be bound at only one binding site, but this test method also may be used for tuft elements bound at more than one binding site, provided that every tuft element measured is bound at the same number of binding sites.  
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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