ASTM D7330-11
(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 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 and health practices and determine the applicability of regulatory limitations prior to use.
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Designation:D7330–11
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. Scope E177 Practice for Use of the Terms Precision and Bias in
ASTM Test Methods
1.1 This test method covers the assessment of changes of
E691 Practice for Conducting an Interlaboratory Study to
surface appearance of pile floor coverings after exposure to
Determine the Precision of a Test Method
actual or simulated foot traffic. This test method applies to pile
yarnfloorcoveringsthatare,orhavebeen,installed;laboratory
3. Terminology
floor-trafficked samples; or textiles floor coverings trafficked
3.1 For definitions of terms relating to Pile Floor Coverings,
by mechanical traffic simulators. The subjective assessment is
refer to the Terminology D5684.
facilitated by use of reference scales that are based on digital
3.2 Thefollowingtermsarerelevanttothisstandard:carpet,
images of representative pile yarn floor covering styles and
crushing cut pile yarn floor covering, finished, finished pile
constructions.
yarn floor covering, loss of tuft definition, matting, pile, pile
1.2 The values stated in inch-pound units are to be regarded
yarn floor covering, textile floor covering.
as standard. The values given in parentheses are mathematical
3.3 For definitions of other terms related to textiles, refer to
conversions to SI units that are provided for information only
Terminology D123.
and are not considered standard.
1.3 This standard does not purport to address all of the
4. Summary of Test Method
safety concerns, if any, associated with its use. It is the
4.1 The floor covering shall be tested in a mechanical wear
responsibility of the user of this standard to establish appro-
simulator or tested under controlled laboratory foot traffic tests
priate safety and health practices and determine the applica-
referencedinPracticesD5252,D5417,D6119,andD6962.The
bility of regulatory limitations prior to use.
tested floor covering shall then be assessed for surface appear-
ance change by comparing unexposed controls to the exposed
2. Referenced Documents
2 sample by using the appropriate Appearance Change Grading
2.1 ASTM Standards:
Scale.
D123 Terminology Relating to Textiles
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 July 1, 2011. Published September 2011. Originally
tests that are as homogenous as possible, drawn from the same
approved in 2007 as D7330-07. Last previous edition published in 2007 as
´1
D7330-07 . DOI: 10.1520/D7330-11.
lot of material as the samples that resulted is desparate results
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
during initial testing and randomly assigned in equal numbers
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
to each laboratory. The test results from the laboratories
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. involved shall be compared using a statistical test for unpaired
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D7330–11
data, a probability level chosen prior to the testing series. If
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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.
´1
Designation:D7330–07 Designation:D7330–11
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
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
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 and health practices and determine the applicability of regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D123 Terminology Relating to Textiles D5251Practice for the Operation of the Tetrapod Walker Drum Tester
D5252 Practice for the Operation of the Hexapod Tumble Drum Tester
D5417 Practice for Operation of the Vettermann Drum Tester
D5684 Terminology Relating to Pile Floor Coverings
D6119 Practice for Creating Surface Appearance Changes in Pile Yarn Floor Covering from Foot Traffic
D6962 Practice for Operation of a Roller Chair Tester for Pile Yarn Floor Coverings
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 For definitions of terms relating to Pile Floor Coverings, refer to the Terminology D5684.
3.2 The following terms are relevant to this standard: carpet, crushing cut pile yarn floor covering, finished, finished pile yarn
floor covering, loss of tuft definition, matting, pile, pile yarn floor covering, textile floor covering.
3.3 For definitions of other terms related to textiles, refer to Terminology D123.
4. Summary of Test Method
4.1 The floor covering shall be tested in a mechanical wear simulator or tested under controlled laboratory foot traffic tests
referenced in Practices D5251, D5252, D5417, D6119, and D6962. The tested floor covering shall then be assessed for surface
appearance change by comparing unexposed controls to the exposed sample by using the appropriateAppearance Change Grading
Scale.
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 May 1, 2007. Published June 2007. DOI: 10.1520/D7330-07E01.
´1
CurrenteditionapprovedJuly1,2011.PublishedSeptember2011.Originallyapprovedin2007asD7330-07.Lastpreviouseditionpublishedin2007asD7330-07 .DOI:
10.1520/D7330-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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
---------------------- Page: 1 ----------------------
D7330–11
5. Significance and Use
5.1The5.1 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
shipmentsbecausecurrentestimatesofbetweenlaboratoryprecisionareacceptable,andthistestmethodiscommonlyusedintrade
for acceptance testing.
5.2 If there are differences of practical significance between reported test results for two laboratories ( or more), comparative
test should be performed to det
...
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