1、Designation: F2609 11 (Reapproved 2015) An American National StandardStandard Test Method forLitter-Cleaning Effectiveness of Vacuum Cleaners1This standard is issued under the fixed designation F2609; the number immediately following the designation indicates the year oforiginal adoption or, in the
2、case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers a laboratory test for determiningthe relative carpet litter-clea
3、ning effectiveness of householdvacuum cleaners when tested under standard conditions.1.2 This test method is applicable to household types ofupright, canister, combination, and stick vacuum cleanersintended for cleaning carpeted floors as a primary or secondaryfunction.1.3 This test method applies o
4、nly to the cleaning of litterfrom carpet, not the removal of embedded dirt. Litter is definedas material that typically clings to the surface of the carpet,such as pet or human hair, thread, and so forth.1.4 The values stated in inch-pound units are to be regardedas standard. The values given in par
5、entheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-pri
6、ate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsF555 Test Method for Motor Life Evaluation of an UprightVacuum CleanerF608 Test
7、Method for Evaluation of Carpet Embedded DirtRemoval Effectiveness of Household/CommercialVacuum CleanersF655 Specification for Test Carpets and Pads for VacuumCleaner TestingF884 Test Method for Motor Life Evaluation of a Built-In(Central Vacuum) Vacuum CleanerF922 Test Method for Motor Life Evalua
8、tion of an ElectricMotorized NozzleF1038 Test Method for Motor Life Evaluation of a Canister,Hand-held, Stick, and Utility Type Vacuum Cleaner With-out a Driven AgitatorF1334 Test Method for Determining A-Weighted SoundPower Level of Vacuum CleanersF1409 Test Method for Straight Line Movement of Vac
9、uumCleaners While Cleaning Carpets3. Significance and Use3.1 This test method will provide an indication of theeffectiveness of the vacuum cleaner in removing litter fromcarpet. No data exist to determine if the cleaning effectivenessin the laboratory will be the same as in home cleaning;however, in
10、 most cases, a vacuum cleaner that cleans well inthe laboratory will clean well in a home.3.2 To provide a uniform basis for measuring the perfor-mance described in 1.1, standardized test carpet and standard-ized test litter are used.4. Apparatus4.1 LED Timer Bar, or other type of equipment capable
11、ofestablishing the specified rate of movement of the cleaner.4.2 Voltmeter, to measure input voltage to the cleaner andprovide measurements accurate to within 61%.4.3 Voltage-Regulator System, to control the input voltageto the cleaner. The regulator shall be capable of maintaining120 6 1 % V root m
12、ean square (RMS), 60 Hz, with awaveform that is essentially sinusoidal with 3 % maximumharmonic distortion for the duration of the test.4.4 Test Carpets, Wilton Wool; specification and source tobe added.4.5 Test Padding, Sponge rubber type of waffle constructionas described in Specification F655.4.6
13、 Psychrometer, for measuring temperature and humidity.4.7 Rake, for lightly embedding the litter into the test carpet.See Fig. 1 and Fig. 2.1This test method is under the jurisdiction of ASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.21 on Cleanability.Curr
14、ent edition approved Nov. 1, 2015. Published November 2015. Originallyapproved in 2007. Last previous edition approved in 2011 as F2609 11. DOI:10.1520/F2609-11R15.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Boo
15、k of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14.8 Supporting SurfaceA flat surface consisting of a pieceof34-in. (19-mm) thick ex
16、terior grade plywood with the “A”surface upward to support the test carpet and pad. The testcarpet and pad may be fastened to the supporting surface, butonly the four corners by any acceptable means.4.9 Test Area TemplateCardboard or plastic sheet orequivalent with a 7- by 7-in. (178- by 178-mm) squ
17、areopening. The opening defines the litter area and is to becentered within the 18-in. (457-mm) long cleaning stroke.FIG. 1 Rake HeadFIG. 2 Rake HandleF2609 11 (2015)25. Reagents and Materials5.1 Test LitterUncarded cut viscose rayon tow, 1.5 denier,34-in. (19-mm) length, SN TN-79, unbleached, hard
18、finish.6. Sampling6.1 A minimum of three units of the same model vacuumcleaner selected at random in accordance with good statisticalpractice shall constitute the population sample.6.2 To determine the best estimate of cleaning ability for thepopulation of the vacuum cleaner model being tested, thea
19、rithmetic mean of the cleaning ability rating of the samplefrom the population shall be established by testing it to a 90 %confidence level within 65 % of the mean value of thecleaning ability rating.7. Conditioning7.1 Test RoomMaintain the test room in which all condi-tioning and vacuum cleaner tes
20、ting is done at 70 6 5F (21 63C) and 45 to 55 % relative humidity.7.2 All components involved in the test shall remain and beexposed in the controlled environment for at least 16 h beforethe start of the test.8. Procedure8.1 Preparation of Test Vacuum Cleaners:8.1.1 New Test Vacuum CleanersRun the v
21、acuum cleanerin at rated voltage 61 % and rated frequency with filters inplace.8.1.1.1 Preconditioning a Rotating Agitator-Type VacuumCleanerIn a stationary position, operate the vacuum cleanerfor 1 h with the agitator bristles not engaged on any surface.8.1.1.2 Preconditioning a Straight-Air-Type V
22、acuumCleanerOperate the vacuum cleaner for 1 h with a wide-openinlet.8.1.2 Test Vacuum Cleaner SettingsTests shall be con-ducted using the same settings (nozzle, motor speed, suctionregulator, and so forth) for the specific carpet as used forstraight line movement (Test Method F1409), sound power(Te
23、st Method F1334), cleaning (Test Method F608), and motorlife evaluation (Test Methods F555, F884, F922, and F1038).8.1.3 Before each test run (cleaning of one square litterarea), thoroughly remove excess rayon tow from the undersideof the nozzle and brush area. For vacuum cleaners usingdisposable ba
24、gs, use a clean bag for each test series (six testruns). For vacuum cleaners using nondisposable receptacles,empty after each test series (six test runs) and clean thereceptacle until all traces of rayon tow are removed.8.1.4 Mark the litter area on the test carpet or use thetemplate.8.1.5 To spread
25、 the rayon tow, start with a ball approxi-mately 3 in. (8 cm) in diameter dabbing it lightly (do not rubin) and randomly over the prescribed area using a verticalmotion of the hand. Any concentrated excess material shall beremoved. All six test areas may be prepared at the same time,spaced evenly ov
26、er the test carpet (see Figs. 3-6). Ensure thespacing between litter areas can accommodate the 18 in. (46cm) stroke with the 7 in. (18 cm) litter area centered within it.8.1.6 Embed the rayon tow into the test carpet by pulling therake once over the litter area in the direction of carpet layfollowed
27、 by pulling the rake once across the carpet perpen-dicular to the direction of carpet lay. Do not apply anydownward force to the rake. The handle of the embedding toolFIG. 3 Litter Test Areas on CarpetF2609 11 (2015)3is held approximately 31.5 in. (0.8 m) off the floor and the rakeis pulled slowly t
28、o avoid bouncing.8.1.7 If the vacuum cleaner has not been energized for morethan 60 min, energize the cleaner for 2 min at nameplate-ratedvoltage (61 %) and frequency (61 Hz) immediately precedingthe test sequence of 8.1.8. For vacuum cleaners with dualnameplate voltage ratings, conduct testing at t
29、he highestvoltage.8.1.7.1 For a rotating agitator-type vacuum cleaner, place itsuch that the bristles clear the supporting surface and no loosedirt is picked up.8.1.7.2 For a straight-air canister vacuum cleaner, operatewith the rug tool unrestricted, positioned such that no loose dirtis picked up f
30、rom the supporting surface.8.1.8 Immediately following the 2-min “run-in,” de-energize the vacuum cleaner and place the vacuum cleanerFIG. 4 Litter Spread on CarpetFIG. 5 Excess Litter RemovedF2609 11 (2015)4nozzle on the test carpet so that the front edge of the vacuumcleaner coincides with the lin
31、e defining the beginning of the18-in. (46-cm) stroke. The forward stroke of the nozzle shall bein the direction of the carpet lay.8.1.8.1 Reasonable efforts shall be made to maintain thehandle height at 31.5 in. (0.8 m) during each test run forvacuum cleaners with a pivoting handle.8.1.8.2 Reasonabl
32、e efforts shall be made to maintain thevacuum cleaners nozzle parallel to the test carpet surfaceduring each test run for vacuum cleaners with nonpivotinghandles.8.1.9 Tilt or lift the nozzle off the carpet, energize thevacuum cleaner, and adjust the voltage to rated voltage 61%.Allow the vacuum cle
33、aner to run and expand the filter bag, ifone is present.8.1.10 Run the vacuum over the center of one of the litterareas. Move the cleaner at the prescribed stroke rate of 1.8 fps(0.5 m/s). The length of the stroke shall be 18 in. (46 cm). Astroke is a movement in one direction. The first stroke is t
34、o bein the direction of carpet lay away from the operator, thesecond stroke is to be back toward the operator, and so on.8.1.11 Clean until the surface within the 7- by 7-in. (18- by18-cm) litter area appears to be free of rayon tow when viewedfrom normal operator position. Disregard any litter not
35、pickedup as a result of belt covers or other minor nozzle features. Iflitter has been pushed or pulled out of the test area (7- by 7-in.(18- by 18-cm) square) rather than removed, the score shall bethe maximum value (36) regardless of the number of strokesneeded to clear the litter from the test are
36、a. Record the numberof strokes required ending only on even numbers of strokes.Carpet shall be checked after each rearward stroke to determineif all litter is removed. Do not stop after a forward stroke.Terminate the test at 36 strokes if litter is still visible in the testarea.8.1.12 Repeat on the
37、remaining five litter areas for a total ofsix test runs. Remove any litter from the underside of thenozzle between test runs. Clean the carpet with an uprightcleaner with agitator after all test runs are complete.8.1.13 The litter-cleaning effectiveness is expressed as theaverage number of cleaning
38、strokes required in the six testruns.9. Precision and Bias39.1 PrecisionThe precision of this test method is based onan inter-laboratory study conducted in 2005. Eight laboratoriestested six different vacuums (two uprights, two canisters withpower nozzles, and two stick vacuums without agitators) to
39、determine the average number of strokes required to remove alllitter from sample squares of carpeting. The labs reported tworeplicate test results for each analysis. Each test result, asreported in this study, consisted of an average of six observa-tions. Where ineffective or incomplete litter remov
40、al wasnoted, a score of 36 strokes was reported. The repeatability andreproducibility of Upright A were worse (higher) than those ofany other vacuum cleaner, so the values listed are those fromUpright A only.9.1.1 Repeatability Limit (r)Two test results obtainedwithin one laboratory shall be judged
41、not equivalent if theydiffer by more than the “r” value for that vacuum cleaner; “r”is the interval representing the critical difference between twotest results for the same vacuum cleaner, obtained by the sameoperator using the same equipment on the same day in the samelaboratory.9.1.1.1 Repeatabil
42、ity limit is 3.0 for all vacuum cleaners.9.1.2 Reproducibility Limit (R)Two test results shall bejudged not equivalent if they differ by more than the “R” valuefor that vacuum cleaner; “R” is the interval representing thecritical difference between two test results for the same vacuum3Supporting dat
43、a have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:F11-1019.FIG. 6 Raked Litter Ready for CleaningF2609 11 (2015)5cleaner, obtained by different operators using different equip-ment in different laboratories.9.1.2.1 Reproducibility limit is 4.0 f
44、or all vacuum cleaners.9.1.3 The above terms (repeatability limit and reproducibil-ity limit) are used as specified in Practice E177.9.1.4 Any judgment in accordance with statements 9.1.1and 9.1.2 would have an approximate 95 % probability ofbeing correct.9.2 BiasAt the time of the study, there was
45、no acceptedreference material suitable for determining the bias for this testmethod, therefore no statement on bias is being made.9.3 The precision statement was determined through statis-tical examination of 94 test results, from eight laboratories, onsix vacuums. Two results were determined to be
46、outliers andwere excluded.10. Keywords10.1 carpet; cleaning; litter; vacuum cleanerAPPENDIX(Nonmandatory Information)X1. INTERLABORATORY REPEATABILITY AND REPRODUCIBILITYX1.1 A summary of the repeatability and reproducibilityresults for each of the six vacuum cleaners tested are shown inTable X1.1.
47、Much more detail is given in Research Report RR:F11-1019.3This information is for reference only.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determi
48、nation of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or wi
49、thdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,Unit
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