1、Designation: F2756 11Standard Test Method forDetermining Energy Consumption of Vacuum Cleaners1This standard is issued under the fixed designation F2756; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、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 only a laboratory test fordetermining the energy usage-of household and commercialupright, canister, stick, and
3、 wet/dry vacuum cleaners operatingon carpet when tested under specified conditions.1.1.1 This procedure may be used in conjunction with otherperformance criteria, such as cleaning effectiveness.1.1.2 Vacuum cleaners, other than upright vacuum cleaners,that provide a carpet-cleaning function are test
4、ed in accordancewith the carpet-cleaning instructions provided in the manufac-turers instruction manual. If the manufacturers instructionmanual does not contain instructions for a carpet-cleaningfunction, the vacuum cleaner is not within the scope of thisprocedure.1.2 This test method is applicable
5、to household and com-mercial types of vacuum cleaners.1.3 The values stated in SI units are to be regarded asstandard. The inch-pound units given in parentheses aremathematical conversions that are provided for informationonly and are not considered standard.1.4 This standard does not purport to add
6、ress 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 ASTM Standards:2F655 Specific
7、ation for Test Carpets and Pads for VacuumCleaner Testing2.2 Other Standards:IEC 60312 Vacuum cleaners for household use - Methods ofmeasuring the performance, Fourth Edition3UL 1017 Vacuum Cleaners, Blower Cleaners, and House-hold Floor Finishing Machines43. Terminology3.1 Definitions:3.1.1 energy
8、usage, namount of electrical energy con-sumed by a vacuum cleaner during cleaning, measured inJoules (Watt-seconds). There are 3600 watt-seconds in onewatt-hour.3.1.2 model, ndesignation of a group of vacuum cleanershaving identical mechanical and electrical construction withonly cosmetic or nonfunc
9、tional differences.3.1.3 population, ntotal of all units of a particular modelvacuum cleaner being tested.3.1.4 repeatability limit, r, nvalue below which the abso-lute difference between two individual test results obtainedunder repeatability condition may be expected to occur with aprobability of
10、approximately 0.95 (95 %).3.1.5 repeatability standard deviation, Sr, nstandard de-viation of test results obtained under repeatability conditions.3.1.6 reproducibility limit, R, nvalue below which theabsolute difference between two test results obtained underreproducibility conditions may be expect
11、ed to occur with aprobability of approximately 0.95 (95 %).3.1.7 reproducibility standard deviation, SR, nstandarddeviation of test results obtained under reproducibility condi-tions.3.1.8 sample, ngroup of vacuum cleaners taken from alarge collection of vacuum cleaners of one particular modelwhich
12、serves to provide information that may be used as a basisfor making a decision concerning the larger collection.3.1.9 strip, nwidth covered during one stroke, defined bythe extreme outside geometric width of the power head ornozzle.3.1.10 test run, ndefinitive procedure that produces asingular measu
13、red result.3.1.11 unit, nsingle vacuum cleaner of the model beingtested.3.1.12 watt-hour meter, nmeter that measures and regis-ters the integral, with respect to time, of the active power of thecircuit in which it is connected; the unit of measurement isusually the kilowatt-hour.1This test method is
14、 under the jurisdiction of ASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.20 on Performance(Test Methods).Current edition approved June 1, 2011. Published July 2011. Originally approvedin 2009. Last previous edition approved in 2009 as F2756 09. DOI: 10.152
15、0/F2756-11.2For 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 website.3Available from American National Standards Instit
16、ute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.4Available from Underwriters Laboratories (UL), 333 Pfingsten Rd., North-brook, IL 60062-2096, http:/.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Sig
17、nificance and Use4.1 This test method provides an indication of the amount ofenergy usage of the vacuum cleaner while operating over aspecified cleaning area at a specified stroke speed and totalnumber of cleaning strokes.4.1.1 The test area is divided into a number of strips, thestrip being defined
18、 as the width of the power head or nozzle.For the purpose of this procedure, the cleaning area is specifiedas 10 m2(15 500 in.2), the stroke speed is defined as 0.5 60.03 m/s (1.7 6 0.1 ft/s), with a total of 10 strokes per strip.4.2 In order to provide a uniform basis for measuring theperformance d
19、escribed in 1.1, standardized test carpets areemployed in this procedure.5. Apparatus5.1 Stopwatch, with a second hand or other type of equip-ment capable of establishing the specified rate of movementand total cycle time.5.2 Voltmeter, to measure input volts to the vacuum cleaner,to provide measure
20、ments accurate to within 61%.5.3 Wattmeter, to measure input watts to the vacuumcleaner, to provide measurements accurate to within 61%.5.4 Voltage-Regulator System, to control the input voltageto the vacuum cleaner. The regulator shall be capable ofmaintaining the vacuum cleaners rated voltage 61 %
21、 andrated frequency having a wave form that is essentially sinusoi-dal with 3 % maximum harmonic distortion for the duration ofthe test.5.5 Data-Acquisition System, controlled in such a way that,depending on the movement of the agitator nozzle, at least 10power measurements are recorded during each
22、stroke.5.6 Temperature and Humidity Indicators, to provide tem-perature measurements accurate to within 612 C (61F) andhumidity measurements accurate to within 3 % relative humid-ity.5.7 Supporting SurfaceA flat surface consisting of a pieceof 19-mm (34-in.) thick exterior grade plywood with the “A”
23、surface upward to support the test carpet and pad. If necessary,the four corners (only) of the test carpet and pad may befastened to the supporting surface by any acceptable means.6. Materials6.1 Standard level loop or Wilton carpet conforming toSpecification F655.6.2 Standard carpet padding conform
24、ing to SpecificationF655.7. Sampling7.1 A minimum of three units of the same model vacuumcleaner selected at random in accordance with good statisticalpractice shall constitute the population sample.7.1.1 To determine the best estimate of energy usage asso-ciated with the population of the vacuum cl
25、eaner model beingtested, the arithmetic mean of the energy consumed by thesample from the population shall be established by testing it toa 90 % confidence level within 65 % of the mean value of theenergy usage rating.8. Conditioning8.1 Test RoomMaintain the test room in which all condi-tioning and
26、vacuum cleaner testing is performed at 21 6 3C(70 6 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.9. Procedure9.1 Test Procedure:9.1.1 The energy consumed by the sa
27、mple vacuum cleanershall be established as follows:9.1.1.1 New test carpets and padding shall be level loop orWilton conforming to Specification F655.9.1.1.2 Supporting surface conforming to 5.7.9.1.1.3 Replace the carpet and padding when it has holes,tears, or other signs of wear.9.1.1.4 Speed shal
28、l be 0.5 6 0.03 m/s (1.7 6 0.1 ft/s).9.1.1.5 Use of automated methods are optional.9.1.2 Preparation of Test Vacuum Cleaners:9.1.2.1 New Test Vacuum Cleaners:(1) Change brush drive belt on vacuum cleaners or agitatornozzles using manufacturers instructions, if equipped.(2) Run the vacuum cleaner in
29、at rated voltage 61 % andrated frequency with filters in place.(3) In a stationary position, operate the vacuum cleaner for1 h with the agitator bristles not engaged on any surface.9.1.2.2 Used Test Vacuum CleanersRecondition a usedtest vacuum cleaner, prior to each test run, as follows:(1) Thorough
30、ly remove excess dirt from the vacuumcleaner. Without using tools for disassembly, clean the entireouter surface, brushes, nozzle chamber, ductwork, inside of thechamber surrounding the primary filter, all filters and insidehose and wands.(2) For vacuum cleaners using disposable filters as theprimar
31、y filters, use a new disposable primary filter from themanufacturer for each test. Weigh the filter to the nearest 0.10g (0.0035 oz) and install it as recommended by the vacuumcleaner manufacturer.(3) For vacuum cleaners using non-disposable dirt recep-tacles, empty in accordance with the manufactur
32、ers instruc-tions after each test run and clean the receptacle until its weightis within 2 g (0.07 oz) of its original weight. Weigh thereceptacle to the nearest 0.10 g (0.0035 oz) and install it asrecommended by the vacuum cleaner manufacturer.NOTE 1While this procedure may be used by itself, there
33、 is a stronglikelihood that it will be used as a precursor for other performance testing.Therefore, it is considered reasonable to measure and record the initial bagor dirt cup weights prior to testing. If no additional testing is to beconducted, this step could be skipped.9.1.3 Test Vacuum Cleaner
34、SettingsIf various settings areprovided, set the motor speed setting, suction regulator, nozzleheight, or combination thereof using the manufacturers speci-fications as provided in the instruction manual for the testcarpet being used. Contact the manufacturer if no instructionsare given, or if the i
35、nstructions are unclear or inadequate.9.1.4 If the vacuum cleaner has not been energized for morethan 60 min prior to testing energize the cleaner for 5 min atF2756 112nameplate rated voltage (61 %) and frequency (61 Hz)immediately preceding the test. For vacuum cleaners with dualnameplate voltage r
36、atings, conduct testing at the highestvoltage.9.1.4.1 Place the vacuum cleaner agitator or nozzle agitator,if equipped, such that the bristles clear the supporting surfaceand no loose dirt is picked up.9.1.5 Immediately following the 5-min “run-in” of 9.1.4,de-energize the vacuum cleaner and place t
37、he vacuum cleanernozzle on the test surface so that the front edge of the vacuumcleaner coincides with the line defining the beginning of thetest area.NOTE 2In the case of canister or wet/dry vacuum cleaners, the nozzleis attached at the end of a hose and wand. It will be the nozzle intendedfor use
38、on carpet. For combination tools, it will be set for carpet cleaning.9.1.5.1 If an automated method is not used, reasonableefforts shall be made to maintain the handle height at 800 mm(31.5 in.) during each test run for vacuum cleaners with apivoting handle.9.1.6 Measure the power consumed while vac
39、uuming carpetwith either of the methods defined in IEC 60312, clause 4.14 orUL 1017, clause 5.2, as modified below.9.1.6.1 Operate the vacuum cleaner or nozzle (with orwithout agitator) for a period of 2 min back and forth on thetest carpet.9.1.6.2 Take power measurements during the last minute,with
40、 a minimum of five measurements in each stroke directionaveraging the readings to determine the mean power, PAVG,consumed.NOTE 3The IEC 60312 test method includes the transition areas at theend of each stroke. There is no evidence indicating that including orexcluding the transition areas has any si
41、gnificant effect on the results.9.1.7 Using the same test vacuum cleaner, repeat 9.1.3-9.1.6two additional times for a total of three test runs.9.1.8 The average energy used for each individual testvacuum cleaner from the population sample for a given carpetis the average of three test runs meeting
42、the repeatabilitystatement in Section 11.9.1.9 The energy, Joules (W-s), consumed by the samplevacuum cleaner cleaning a 10 m2area with ten total cleaningstrokes per strip is calculated with the following equation:E 5 PAVG3 N 3 A/b 3 103v! Joules W2s! (1)where:PAVG= average power as determined by 9.
43、1.6.2N = total number of cleaning strokes per stripA = area to be cleaned (10 m2)b = power head or nozzle width (in millimetres)v = stroke speed (0.5 m/s)With a cleaning area of 10 m2, stroke speed of 0.5 m/s andten cleaning strokes per strip, the result is:E 5 PAVG3 8 3 10/b 3 1033 0. 5!5 PAVG3 16
44、3 104/b5 16 3 1043 PAVG/b (2)NOTE 4A complete derivation of the equation may be found inIEC 60312.9.1.10 Aminimum of two additional test sample units of thesame model shall be selected in accordance with the samplingstatement of Section 7. Repeat 9.1.1-9.1.9 for each new testsample unit selected.10.
45、 Report10.1 For each vacuum cleaner sample from the populationbeing tested, report the following information:10.1.1 Manufacturers name, product name, product model,and serial number.10.1.2 Type of cleaner.10.1.3 Nozzle height settings.10.1.4 Cleaning head test width used for energy-use calcu-lations
46、.10.1.5 The average energy used.10.2 The overall average(s), standard deviations), and 90 %confidence results for all of the population sample tested shallalso be reported.11. Precision and Bias11.1 PrecisionNo interlaboratory tests have been per-formed; therefore, no precision statements regarding
47、the re-peatability and reproducibility of this test method are availableat this time.11.2 BiasNo justifiable statement can be made on the biasof the method to evaluate energy of household/commercialvacuum cleaners since the true value of the property cannot beestablished by an acceptable referee met
48、hod.12. Keywords12.1 energy usage; energy use; vacuum cleanersASTM 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
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