1、Designation: F2797 10Standard Test Method forEvaluating Edge Cleaning Effectiveness of VacuumCleaners1This standard is issued under the fixed designation F2797; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. 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 procedure provides a quantitative laboratorymethod for determining the edge cleaning effectiveness of avacuum cleaner
3、along walls and baseboards.1.2 This test method is applicable to household and com-mercial types of upright, canister, combination, stick and handheld vacuum cleaners.1.3 The values stated in SI units are to be regarded asstandard. The values given in parentheses are for informationonly.1.4 This sta
4、ndard 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 health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1
5、ASTM Standards:2D75 Practice for Sampling AggregatesE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF608 Test Method for Evaluation of Carpet Embedded DirtRemoval Effectiveness of
6、 Household/Commercial VacuumCleaners2.2 Other Standards:IEC 60312 Vacuum cleaners for household use Methodsof measuring the performance, 4th Edition33. Terminology3.1 Definitions:3.1.1 cleaning ability, dry, nthe potential of a vacuumcleaner to remove dirt from a surface (sometimes referred to inthe
7、 industry as cleanability, dry).3.1.2 model, nthe designation of a group of vacuumcleaners having identical mechanical and electrical construc-tion with only cosmetic or nonfunctional differences.3.1.3 population, nthe total of all units of a particularmodel vacuum cleaner being tested.3.1.4 sample,
8、 na group of vacuum cleaners taken from alarge collection of vacuum cleaners of one particular modelwhich serves to provide information that may be used as a basisfor making a decision concerning the larger collection.3.1.5 test run, nthe definitive procedure that produces asingular measured result.
9、3.1.6 unit, na single vacuum cleaner of the model beingtested.4. Significance and Use4.1 This test method provides an indication of how close toa wall or baseboard a vacuum cleaner removes dirt/dust. Theamount of dirt removed in the laboratory test may not be thesame as in a home; however, it will s
10、how that, in most cases,a vacuum cleaner that performs well in the laboratory willperform well in a home. Laboratory results may differ due tovariations in the homes: carpets, dirt, and other factors.NOTE 1The primary goal of this test method is not to evaluate thedegree or the amount of dirt or dus
11、t debris that a given product removes,but rather how close to a wall or baseboard a vacuum has performed somemeasure of cleaning.4.2 In order to provide a uniform basis for measuring theperformance described in 1.1, a standardized test carpet andtest dust are employed in this procedure.5. Apparatus5
12、.1 Weighing Scale for Weighing Test Dirt, accurate to 0.10g (0.0035 oz) and having a weighing capacity of at least 500 g(1.1 lb).1This test method is under the jurisdiction of ASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.21 on Cleanability.Current edition
13、 approved Feb. 1, 2010. Published July 2010. DOI: 10.1520/F2797-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM we
14、bsite.3Available from International Electrotechnical Commission (IEC), 3 rue deVaremb, Case postale 131, CH-1211, Geneva 20, Switzerland, http:/www.iec.ch.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 Stopwatch, with a second h
15、and or other type of equip-ment capable of establishing the specified rate of movementand total cycle time.5.3 Voltmeter, to measure input volts to the vacuum cleaner,to provide measurements accurate to within 61%.5.4 Voltage-Regulator System, to control the input voltageto the vacuum cleaner. The r
16、egulator shall be capable ofmaintaining the vacuum cleaners rated voltage 61 % andrated frequency 61 Hz. having a wave form that is essentiallysinusoidal with 3 % maximum harmonic distortion for theduration of the test.5.5 Dirt DispenserDispensing system that provides theoperator with a method to di
17、stribute the test dirt uniformly onthe carpet test area.5.6 Rotating Agitator Conditioning Vacuum Cleaner/Equipment, for conditioning new test carpets and removingresidual dirt from the test carpet before each test run. Thiscannot be the unit being tested.5.7 Temperature and Humidity Indicators, to
18、provide tem-perature measurements accurate to within 612 C (61F) andhumidity measurements accurate to within 2 % relative humid-ity.5.8 Supporting SurfaceA flat surface consisting of a pieceof 19-mm (34-in.) thick exteriorgrade plywood with the “A”surface upward to support the test carpet. The test
19、carpet maybe fastened to the supporting surface, but only the four corners,by any acceptable means.5.9 T-bar GuideA “T-bar” constructed of wood (or othersuitable material) per Fig. 1. Construction shall be to ensureT-bar does not move during testing.5.10 Measurement ScaleA measurement scale with ana
20、ccuracy and resolution of 0.04 in. (1 mm).6. Materials6.1 Debris DustWedron 504 sand or equivalent in accor-dance with Test Method F608, Annex A1.6.2 Test CarpetWilton Wool in accordance withIEC 60312, paragraph 5.1.1.2.7. Sampling, Test Specimens, and Test Units7.1 A minimum of three units of the s
21、ame model vacuumcleaner selected at random in accordance with good statisticalpractice shall constitute the population sample.7.1.1 To determine the best estimate of edge cleaningeffectiveness for the population of the vacuum cleaner modelbeing tested, the arithmetic mean of the edge cleaning effec-
22、tiveness rating of the sample from the population shall beestablished by testing it to a 90 % confidence level within65 % of the mean value.7.1.2 Annex A1 provides a procedural example for deter-mining the 90 % confidence level and when the sample sizeshall be increased.8. Conditioning8.1 Test RoomM
23、aintain the test room in which all condi-tioning and vacuum cleaner test is performed at 21 6 3C (706 5F) and 45 to 55 % relative humidity.8.2 All components involved in the test shall remain and beexposed in the controlled environment for at least 16 h prior tothe start of the test.FIG. 1 T-Bar Gui
24、de Rail in Units of Millimetres (Inches)F2797 1029. Test Carpets9.1 New test carpets shall conform to IEC 60312, paragraph5.1.1.2.9.1.1 Cut a sample of each test carpet to a size of 1220 by1830 mm (48 by 72 in.) minimum. If the warp direction or“lay” of the carpet can be determined, it shall be in t
25、he 1830mm (72 in.) direction. (It is recommended that the carpets bebound on all sides to prevent fraying during handling.)9.2 Precondition New Test Carpet SamplesPreconditionthe entire area of the carpet by cleaning with the rotatingagitator conditioning vacuum cleaner for 5 min. If more than2 g of
26、 fiber is removed after 5 min of vacuuming, repeatvacuuming in 2-min sessions until less than 1 g of fiber isremoved.9.3 Reconditioning Used Test Carpet SamplesTo removethe residual dirt, clean the carpet with a rotating agitatorconditioning vacuum cleaner until no dirt is visible on thecarpet surfa
27、ce.10. Test Vacuum Cleaners10.1 New Test Vacuum Cleaners:10.1.1 Preconditioning a New Test Vacuum CleanerRunthe vacuum cleaner in at rated voltage 61 % and ratedfrequency 61 Hz with filters in place.10.1.1.1 Preconditioning Rotating Agitator Type VacuumCleanerIn a stationary position, operate the va
28、cuum cleanerfor 1 h with the bristles not engaged on any surface.10.1.1.2 Preconditioning a Straight-Air Canister VacuumCleanerOperate the vacuum cleaner for 1 h with a wide-open inlet (without hose).10.2 Used Test Vacuum Cleaners:10.2.1 Recondition a used test vacuum cleaner; prior to eachtest run
29、as follows:10.2.1.1 Thoroughly remove excess dirt from the vacuumcleaner. Without using tools for disassembly, clean the entireouter surface, brushes, nozzle chamber, ductwork, inside ofchamber surrounding the primary filter, and inside hose andwands.10.2.1.2 For vacuum cleaners using disposable fil
30、ters as theprimary filters, use a new disposable primary filter from themanufacturer for each test. Follow the manufacturers instruc-tions for the filter installation.10.2.1.3 For vacuum cleaners using water as the primaryfilter, empty the receptacle and refill as recommended by themanufacturer.10.2
31、.1.4 For vacuum cleaners using non-disposable dirtreceptacles, empty in accordance with the manufacturersinstructions after each test run and clean the receptacle.Primary filter shall be thoroughly cleaned per manufacturersinstructions.10.3 Test Vacuum Cleaner SettingsIf various settings areprovided
32、, set the motor speed setting, suction regulator, nozzleheight, or combination thereof using the manufacturers speci-fications as provided in the instruction manual for the carpettype. Contact the manufacturer if no instructions are given, orif the instructions are unclear or inadequate.11. Procedur
33、e11.1 Clean and prepare the carpet test panel in accordancewith 9.2 for new carpets or 9.3 for used carpets.11.2 Prepare test cleaners and dirt receptacles in accordancewith Section 10.11.3 Ensure the vacuum cleaner settings have been set inaccordance with 10.3.11.4 Test Dirt PreparationWeigh 200 6
34、0.1g(76 0.005oz) of test dust.11.5 Using the dirt dispenser and any convenient spreadingmethod, distribute test dust uniformly down the center area ofthe carpet test surface approximately 254 mm wide by 1016mm long (10 by 40 in.). Ensure good visible coverage.11.6 Place the T-bar over the middle of
35、the dust covered areaof the carpet test surface. The middle leg of the T-bar shall beplaced parallel to the carpet lay such that the first cleaningstroke will be conducted in the direction of the carpet pile lay.11.6.1 Test dust must be spread out a minimum of 76 mm (3in.) from each side/edge of the
36、 T-bar.11.7 Energize the cleaner for 2 min at nameplate ratedvoltage (61 %) and frequency (61 Hz) immediately precedingthe test sequence of 11.8. For vacuum cleaners with dualnameplate voltage ratings, conduct testing at the highestvoltage.11.7.1 For a rotating agitator-type vacuum cleaner, place it
37、such that the bristles clear the supporting surface and no loosedirt is picked up.11.7.2 For a straight-air canister vacuum cleaner, operatewith the rug tool unrestricted, positioned such that no loose dirtis picked up from the supporting surface.11.8 Immediately following the 2-min “run-in” of 11.7
38、,de-energize the vacuum cleaner and place the vacuum cleanernozzle on the test carpet directly in front of the target cleaningarea.11.8.1 Reasonable efforts shall be made to maintain thehandle height at 800 mm (31.5 in.) during each test run forvacuum cleaners with a pivoting handle.11.8.2 Reasonabl
39、e efforts shall be made to maintain thevacuum cleaners nozzle parallel to the test carpet surfaceduring each test run for vacuum cleaners with non-pivotinghandles.11.9 Tilt or lift the nozzle off the carpet, energize thevacuum cleaner and adjust the voltage to rated voltage 61%.Allow the vacuum clea
40、ner to run and expand the filter bag, ifone is present.11.10 Lower the nozzle onto the carpet before the test area.Again, adjust the voltage to rated voltage 61 %; then performone forward stroke and one backward stroke at a rate of 0.254m/s (10.0 in./s) without lifting the nozzle from the carpet alo
41、ngone side of the leg of the T-bar.11.11 At the end of the return stroke, de-energize thevacuum cleaner.11.12 Reposition cleaner on opposite side of T-bar to testalternate side of the test vacuum cleaner nozzle. Repeat steps11.9-11.11.11.13 Using an accurate scale measure the width of thevisible unc
42、leaned area (edge of cleaning) to the nearestmillimetre (0.040 in.), at increments of 25, 50, and 75 cm (10,F2797 10320, and 30 in.) down the middle leg of the T-bar. Record thethree measurements along the T-bar and calculate the arith-metic average of the three measurements for a given side.NOTE 2T
43、he primary goal of this test method is not to evaluate thedegree or the amount of sand debris that a given product removes, butrather how close to the T-Bar a vacuum has performed some measure ofcleaning. It is therefore not necessary that a vacuum remove all of thevisible debris in determining the
44、line or edge of cleaning. Credit should begiven to a vacuum for evidence of some debris removal in determiningthis line or edge of cleaning. The photographs in Annex A2 have beenprovided to assist in determining this edge of cleaning for a variety ofresults.11.14 Repeat 11.13 for opposite side of T-
45、bar. This consti-tutes one test run.11.15 Repeat Section 11 two additional times with the sametest cleaner.12. Calculation or Interpretation of Results12.1 The edge cleaning effectiveness for each individual testvacuum cleaner from the population sample is the arithmeticmean of the three test run av
46、erages meeting the repeatabilitystatement in Section 14 for each side of the vacuum cleanernozzle (left and right). See Annex A1 for a procedural exampleand whether further test runs need to be conducted.12.2 A minimum of two additional test sample units of thesame model shall be selected in accorda
47、nce with the samplingstatement of Section 7. Repeat the test procedure in Section 11for each new test sample unit selected.12.3 The edge cleaning effectiveness for the population ofthe vacuum cleaner model being tested is the arithmetic meanof the edge cleaning measurements of the samples from thepo
48、pulation meeting the requirements of Section 7.13. Report13.1 For each vacuum cleaner sample from the populationbeing tested, report the following information:13.1.1 Manufacturers name, product model name and num-ber.13.1.2 Type of cleaner; for example, upright, canister, etc.13.1.3 The arithmetic m
49、ean edge cleaning effectiveness forthe left and right sides of the nozzle.14. Precision and Bias14.1 PrecisionAn interlaboratory test is currently inprogress but is not complete. No official precision statementsregarding the repeatability and reproducibility of this testmethod are available at this time. An estimate of the repeat-ability of this procedure within a single lab is provided belowin 14.1.1 and is based on interlab testing of four (4) laboratoriesto date (July 27, 2009).14.1.1 Repeatability LimitThe 95 % repeatability limit r =6.35
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