ASTM F2828-20

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: F2828 − 20
Standard Test Method for
Assessing Carpet Cleaning Effectiveness in Terms of Visual
Appearance Change When Cleaned with a Wet Extraction
1
Cleaning System
This standard is issued under the fixed designation F2828; 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 Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
1.1 This test method provides only a laboratory test for
Barriers to Trade (TBT) Committee.
visually determining the relative carpet cleaning effectiveness
of a wet extraction cleaning system when tested under standard
2. Referenced Documents
conditions.
2
2.1 ASTM Standards:
1.2 This test method is applicable to types of upright,
D6540 Test Method for Accelerated Soiling of Pile Yarn
canister, and combination wet extraction cleaners and their
Floor Covering
recommended chemical cleaning formulas intended for clean-
E177 Practice for Use of the Terms Precision and Bias in
ing carpets as a primary or secondary function. This test
ASTM Test Methods
method excludes pre-spray systems or pre-spray treatments.
E691 Practice for Conducting an Interlaboratory Study to
1.3 Thistestmethodisnotapplicabletoupholsterycleaning
Determine the Precision of a Test Method
or bare floor cleaning.
F608 Test Method for Evaluation of Carpet Embedded Dirt
Removal Effectiveness of Household/Commercial
1.4 This test method applies only to the cleaning of embed-
Vacuum Cleaners
ded soil from carpet, not the removal of surface litter and
F655 Specification for Test Carpets and Pads for Vacuum
debris.
Cleaner Testing
1.5 This test method does not directly quantify the amount
of soil removed but is visually assessed by employing colori-
3. Terminology
metric instrumentation.
3.1 Definitions:
1.6 Units—The values stated in either SI units or inch-
3.1.1 cleaning effectiveness, wet, n—the potential of a wet
pound units are to be regarded separately as standard. The
extractor cleaner to restore the appearance of a soiled carpet.
values stated in each system may not be exact equivalents;
3.1.2 cleaning system, n—wet extraction appliance coupled
therefore,eachsystemshallbeusedindependentlyoftheother.
with its included or recommended chemical cleaning formula.
Combining values from the two systems may result in non-
3.1.3 Delta-E (∆E), n—a single number representing the
conformance with the standard.
distance in color space between two colors; Delta-E is derived
1.7 This standard does not purport to address all of the
mathematically and is used in colorimetry to evaluate the
safety concerns, if any, associated with its use. It is the
extent of color differences and change.
responsibility of the user of this standard to establish appro-
3.1.4 dry stroke, n—a single pass across the test carpet in
priate safety, health, and environmental practices and deter-
one direction without the application of any cleaning solution.
mine the applicability of regulatory limitations prior to use.
3.1.5 model, n—the designation of a group of wet extraction
1.8 This international standard was developed in accor-
dance with internationally recognized principles on standard- cleaners having identical mechanical and electrical construc-
tion with only cosmetic or nonfunctional differences.
ization established in the Decision on Principles for the
3.1.6 nozzle width, n—the measured outside width of the
cleaning nozzle in inches.
1
This test method is under the jurisdiction ofASTM Committee F11 on Vacuum
Cleaners and is the direct responsibility of Subcommittee F11.35 on Extractor
2
Cleaners. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Jan. 1, 2020. Published February 2020. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 2012. Last previous edition approved in 2012 as F2828 – 12. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/F2828-20. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2828 − 20
3.1.7 population, n—the total of all units of a particular 5.7 Colorimeter Weight—Weight to be added to the colo-
model wet extraction cleaner being tested. rimeter to ensure that the compressing force defined in section
5.6
...