ASTM F970-17

Standard Test Method for Measuring Recovery Properties of Floor Coverings after Static Loading

SIGNIFICANCE AND USE
3.1 This test method is a meaningful test for determining the indentation recovery properties of uninstalled resilient floor covering.3  
3.2 This test method is intended solely for the purpose of determining compliance, where applicable, with static load requirements set forth in resilient flooring product specifications under the jurisdiction of ASTM Committee F06 on Resilient Floor Coverings.  
3.3 As testing is conducted on uninstalled flooring, results are not an indicator of the floor covering's installed performance.3
SCOPE
1.1 This test method is intended for use in determining the recovery properties of uninstalled resilient floor covering after long-term indentation test, 24 h under the load specified in the detail specification. The reported value, residual indentation, is the depth of the depression remaining 24 h after removal of the specified load.  
1.2 This test method is not intended for use in evaluating the long-term indentation resistance or recovery properties, or both, of resilient floor coverings at loads above those listed in the Precision and Bias statement as described in Section 10.  
1.2.1 Testing at loads above 250 psi is outside the scope of this test method.  
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 and health 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: Historical
• Publication Date: 30-Apr-2017
• ICS: 97.150 - Floor coverings
• Technical Committee: F06 - Resilient Floor Coverings
• Drafting Committee: F06.20 - Test Methods

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: F970 − 17
Standard Test Method for
Measuring Recovery Properties of Floor Coverings after
1
Static Loading
ThisstandardisissuedunderthefixeddesignationF970;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E691 Practice for Conducting an Interlaboratory Study to
Determine the Precision of a Test Method
1.1 This test method is intended for use in determining the
F386 Test Method for Thickness of Resilient Flooring Ma-
recovery properties of uninstalled resilient floor covering after
terials Having Flat Surfaces
long-term indentation test, 24 h under the load specified in the
F387 Test Method for Measuring Thickness of Resilient
detail specification. The reported value, residual indentation, is
Floor Covering With Foam Layer
the depth of the depression remaining 24 h after removal of the
F1914 Test Methods for Short-Term Indentation and Re-
specified load.
sidual Indentation of Resilient Floor Covering
1.2 Thistestmethodisnotintendedforuseinevaluatingthe
long-term indentation resistance or recovery properties, or
3. Significance and Use
both, of resilient floor coverings at loads above those listed in
3.1 Thistestmethodisameaningfultestfordeterminingthe
the Precision and Bias statement as described in Section 10.
indentation recovery properties of uninstalled resilient floor
1.2.1 Testing at loads above 250 psi is outside the scope of
3
covering.
this test method.
3.2 This test method is intended solely for the purpose of
1.3 The values stated in inch-pound units are to be regarded
determining compliance, where applicable, with static load
as standard. The values given in parentheses are mathematical
requirements set forth in resilient flooring product specifica-
conversions to SI units that are provided for information only
tions under the jurisdiction of ASTM Committee F06 on
and are not considered standard.
Resilient Floor Coverings.
1.4 This standard does not purport to address all of the
3.3 As testing is conducted on uninstalled flooring, results
safety concerns, if any, associated with its use. It is the
are not an indicator of the floor covering’s installed perfor-
responsibility of the user of this standard to establish appro-
3
mance.
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4. Apparatus
1.5 This international standard was developed in accor-
4.1 The following apparatus shall be used:
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4.2 Conditioning Room, providing the standard laboratory
Development of International Standards, Guides and Recom-
atmosphere of 50 6 5 % relative humidity at a temperature of
mendations issued by the World Trade Organization Technical
73.4 6 3.6°F (23 6 2.0°C).
Barriers to Trade (TBT) Committee.
4.3 Indentation Machine, as described in Section 12 and
pictured in Fig. 2 of Test Method F1914.
2. Referenced Documents
4.4 Indentor Plates, each constructed of a piece of 2-in.
2
2.1 ASTM Standards:
(50.8 mm) square stainless steel, 0.240 6 0.005 in. (6.1 6 0.1
mm) thick, with one side turned to 1.125 in. (28.6 mm) in
diameter (one square inch area) to depth of 0.150 in. (3.8 mm)
1
ThistestmethodisunderthejurisdictionofASTMCommitteeF06onResilient
(see Fig. 1).
Floor Coverings and is the direct responsibility of Subcommittee F06.20 on Test
Methods.
4.5 Dial Micrometer, as described in Test Method F386
Current edition approved May 1, 2017. Published May 2017. Originally
when measuring resilient floor coverings containing a foam
approved in 1987. Last previous edition approved in 2015 as F970–15. DOI:
10.1520/F0970–17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM For additional information, see Resilient Floor Covering Institute (RFCI)
Standards volume information, refer to the standard’s Document Summary page on document, Static LimitTesting of Resilient Flooring Products, available from RFCI,
the ASTM website. 115 Broad Street, Suite 201, La Grange, GA 30240, www.rfci.com.
Copyright ©ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA19428-2959. United States
1

---------------------- Page: 1 ----------------------
F970 − 17
7. Procedures
7.1 Measure the initial thickness of each specimen, wear
layer up, at the center of the specimen using the dial microm-
eter.Recordthevaluetothenearest0.001in.(0.025mm)as T .
1
7.2 Place the 2 by 2 in. (50.8 by 50.8 mm) indentor plate on
topofthe2by2in.(50
...

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: F970 − 15 F970 − 17
Standard Test Method for
Static Load LimitMeasuring Recovery Properties of Floor
1
Coverings after Static Loading
This standard is issued under the fixed designation F970; 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 is intended for use in determining the recovery properties of uninstalled resilient floor covering after
long-term indentation test, 24 h under the load specified in the detail specification. The reported value, residual indentation, is the
depth of the depression remaining 24 h after removal of the specified load.
1.2 This test method is not intended for use in evaluating the long-term indentation resistance or recovery properties, or both,
of resilient floor coverings at loads above those listed in the Precision and Bias statement as described in Section 10.
1.2.1 Testing at loads above 250 psi is outside the scope of this test method.
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 and health 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:
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
F386 Test Method for Thickness of Resilient Flooring Materials Having Flat Surfaces
F387 Test Method for Measuring Thickness of Resilient Floor Covering With Foam Layer
F1914 Test Methods for Short-Term Indentation and Residual Indentation of Resilient Floor Covering
3. Significance and Use
3.1 This test method is a meaningful test for determining the indentation recovery properties of uninstalled resilient floor
3
covering.
3.2 This test method is intended solely for the purpose of determining compliance, where applicable, with static load
requirements set forth in resilient flooring product specifications under the jurisdiction of ASTM Committee F06 on Resilient Floor
Coverings.
3.3 As testing is conducted on uninstalled flooring, results are not necessarily an indicator of the floor covering’s installed
3
performance.
4. Apparatus
4.1 The following apparatus shall be used:
1
This test method is under the jurisdiction of ASTM Committee F06 on Resilient Floor Coverings and is the direct responsibility of Subcommittee F06.30 on Test Methods
- Performance.
Current edition approved Dec. 1, 2015May 1, 2017. Published January 2016May 2017. Originally approved in 1987. Last previous edition approved in 20112015 as
F970–07 (2011). –15. DOI: 10.1520/F0970–15.10.1520/F0970–17.
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
For additional information, see Resilient Floor Covering Institute (RFCI) document, Static Limit Testing of Resilient Flooring Products, available from RFCI, 115 Broad
Street, Suite 201, La Grange, GA 30240, www.rfci.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F970 − 17
4.2 Conditioning Room, providing the standard laboratory atmosphere of 50 6 5 % relative humidity at a temperature of
73.4 6 3.6°F (23 6 2.0°C).
4.3 Indentation Machine, as described in Section 12 and pictured in Fig. 2 of Test Method F1914.
4.4 Indentor Plates, each constructed of a piece of 2-in. (50.8 mm) square stainless steel, 0.240 6 0.005 in. (6.1 6 0.1 mm)
thick, with one side turned to 1.125 in. (28.6 mm) in diameter (one square inch area) to depth of 0.1
...