1、Designation: F 2609 07An American National StandardStandard Test Method forLitter-Cleaning Effectiveness of Vacuum Cleaners1This standard is issued under the fixed designation F 2609; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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-cleaning effectivene
3、ss 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 only to the clean
4、ing 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 parentheses are mat
5、hematicalconversions 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-priate safety and h
6、ealth practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F 555 Test Method for Motor Life Evaluation of an UprightVacuum CleanerF 608 Test Method for Evaluation of Carpet Embedded DirtRemoval Effectiveness of Household/Commerc
7、ial VacuumCleanersF 655 Specification for Test Carpets and Pads for VacuumCleaner TestingF 884 Test Method for Motor Life Evaluation of a Built-In(Central Vacuum) Vacuum CleanerF 922 Test Method for Motor Life Evaluation of an ElectricMotorized NozzleF 1038 Test Method for Motor Life Evaluation of a
8、 Canis-ter, Hand-held, Stick, and Utility Type Vacuum CleanerWithout a Driven AgitatorF 1334 Test Method for Determining A-Weighted SoundPower Level of Vacuum CleanersF 1409 Test Method for Straight Line Movement of VacuumCleaners While Cleaning Carpets3. Significance and Use3.1 This test method wil
9、l 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 most cases, a vacuum cleaner that cleans well inthe laboratory will clean well i
10、n 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 ofestablishing the specified rate of movement of the cleaner.4.2 Voltmeter, to me
11、asure 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 mean square (RMS), 60 Hz, with awaveform that is essentially sinusoidal with 3 % m
12、aximumharmonic 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 F 655.4.6 Psychrometer, for measuring temperature and humidity.4.7 Rake, for lightly embe
13、dding the litter into the test carpet.See Fig. 1.4.8 Supporting SurfaceA flat surface consisting of a pieceof34-in. (19-mm) thick exterior grade plywood with the “A”surface upward to support the test carpet and pad. The test1This test method is under the jurisdiction of ASTM Committee F11 on VacuumC
14、leaners and is the direct responsibility of Subcommittee F11.21 on Cleanability.Current edition approved Feb. 1, 2007. Published March 2007.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volum
15、e information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.carpet and pad may be fastened to the supporting surface, butonly the four corners by any acceptable means
16、.4.9 Test Area TemplateCardboard or plastic sheet orequivalent with a 7- by 7-in. (178- by 178-mm) squareopening. The opening defines the litter area and is to becentered within the 18-in. (457-mm) long cleaning stroke.5. Reagents and Materials5.1 Test LitterUncarded cut viscose rayon tow, 1.5 denie
17、r,34-in. (19-mm) length, SN TN-79, unbleached, hard 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 thepopul
18、ation of the vacuum cleaner model being tested, thearithmetic 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 ro
19、om in which all condi-tioning and vacuum cleaner testing 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 Vac
20、uum Cleaners:8.1.1 New Test Vacuum CleanersRun the vacuum 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 s
21、urface.8.1.1.2 Preconditioning a Straight-Air-Type VacuumCleanerOperate the vacuum cleaner for 1 h with a wide-open inlet.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 forstrai
22、ght line movement (Test Method F 1409), sound power(Test Method F 1334), cleaning (Test Method F 608), andmotor life evaluation (Test Methods F 555, F 884, F 922, andF 1038).8.1.3 Before each test run (cleaning of one square litterarea), thoroughly remove excess rayon tow from the undersideof the no
23、zzle and brush area. For vacuum cleaners usingdisposable bags, 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
24、 area on the test carpet or use thetemplate.8.1.5 To spread the rayon tow, start with a ball approxi-mately 3 in. (8 cm) in diameter dabbing it lightly (do not rubFIG. 1 RakeF2609072in) and randomly over the prescribed area using a verticalmotion of the hand. Any concentrated excess material shall b
25、eremoved. All six test areas may be prepared at the same time,spaced evenly over the test carpet (see Figs. 2-5). 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 pu
26、lling therake once over the litter area in the direction of carpet layfollowed 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 toolis held approximately 31.5 in. (0.8 m) off the floor an
27、d the rakeis pulled slowly to 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 r
28、atings, conduct testing at the 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
29、 no loose dirtis picked up from the supporting surface.8.1.8 Immediately following the 2-min “run-in,” de-energize the vacuum cleaner and place the vacuum cleanernozzle on the test carpet so that the front edge of the vacuumcleaner coincides with the line defining the beginning of the18-in. (46-cm)
30、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 Reasonable efforts shall be made to maintain thevacuum
31、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 cleaner to run and expand the filter bag, ifone i
32、s 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 to bein the direction of carpet lay away from t
33、he 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 pickedup as a result of belt covers or other m
34、inor 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 area. Record the numberof strokes required ending
35、 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 remaining five litter areas for a total ofsix
36、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 strokes required in the six testruns.FIG. 2 Li
37、tter Test Areas on CarpetF26090739. Precision and Bias9.1 PrecisionNo interlaboratory tests have been per-formed; therefore, no precision statements regarding the re-peatability and reproducibility of this test method are availableat this time.9.2 BiasNo justifiable statement can be made on the bias
38、of the method to evaluate litter cleaning effectiveness ofhousehold/commercial vacuum cleaners since the true value ofthe property cannot be established by an acceptable refereemethod.10. Keywords10.1 carpet; cleaning; litter; vacuum cleanerFIG. 3 Litter Spread on CarpetFIG. 4 Excess Litter RemovedF
39、2609074ASTM 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 determination of the validity of any such patent rights, and the riskof infringement of such righ
40、ts, 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 withdrawn. Your comments are invited either for revision of this standard or for additional
41、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
42、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,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).FIG. 5 Raked Litter Ready for CleaningF2609075
