1、Designation: F558 17F558 17a An American National StandardStandard Test Method forMeasuring Air Performance Characteristics of VacuumCleaners1This standard is issued under the fixed designation F558; the number immediately following the designation indicates the year of originaladoption or, in the c
2、ase of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers procedures for determining air performance characteristics of commerc
3、ial and household upright,canister, stick, hand-held, utility, and combination-type vacuum cleaners having provisions for attaching a hose and incorporatinga series universal motor. This test method can be applied to the carpet cleaning mode of operation.1.2 These tests and calculations include dete
4、rmination of suction, airflow, air power, maximum air power, and input power understandard operating conditions (see Note 1). The nozzle mounted on plenum testing is an ideal air performance measurement andis not intended to represent the actual air performance during carpet or floor cleaning.NOTE 1
5、For more information on air performance characteristics, see Refs (1-6).21.3 The foot-pound-inch system of units is used in this standard. The values in parentheses are given for information only.1.4 This standard may involve hazardous materials, operations, and equipment. This standard does not pur
6、port to address allof the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriatesafety safety, health, and healthenvironmental practices and determine the applicability of regulatory limitations prior to use.Aspecific precauti
7、onary statement is given in Note 2.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Or
8、ganization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3E1 Specification for ASTM Liquid-in-Glass ThermometersE177 Practice for Use of the Terms Precision and Bias in ASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study to Determine the Pre
9、cision of a Test MethodE2251 Specification for Liquid-in-Glass ASTM Thermometers with Low-Hazard Precision LiquidsF431 Specification for Air Performance Measurement Plenum Chamber for Vacuum Cleaners2.2 AMCA Standard:4210-85 Laboratory Methods of Testing Fans for Rating2.3 IEC Standard:5IEC 60312 Ed
10、 3.262885-2 Surface Cleaning Appliances Part 2: Dry Vacuum Cleaners for Household UseMethods of orSimilar Use Methods for Measuring the Performance3. Terminology3.1 Definitions:3.1.1 air power, AP, W, nin a vacuum cleaner, the net time rate of work performed by an air stream while expending energyto
11、 produce an airflow by a vacuum cleaner under specified air resistance conditions.1 This test method is under the jurisdiction of ASTM Committee F11 on Vacuum Cleaners and is the direct responsibility of Subcommittee F11.22 on Air Performance.Current edition approved March 1, 2017Sept. 1, 2017. Publ
12、ished March 2017October 2017. Originally approved in 1978. Last previous edition approved in 20132017 asF558 13.F558 17. DOI: 10.1520/F0558-17.10.1520/F0558-17A.2 The boldface numbers in parentheses refer to the list of references appended to this test method.3 For referencedASTM standards, visit th
13、eASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.4 Available from Air Movement and Control Association, 30 West University Dr., Arlington Heights, IL,
14、 60004.5 Available from the IEC Web store, webstore.iec.ch, or American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made t
15、o the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyrig
16、ht ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.2 automatic bleed valve, nany device a part of a vacuum cleaners design which automatically introduces an intentionalleak within the vacuum cleaners system when manufacturer specified condi
17、tions are met.3.1.3 corrected airflow, Q, cfm, nin a vacuum cleaner, the volume of air movement per unit of time under standardatmospheric conditions.3.1.4 input power, W, nthe rate at which electrical energy is absorbed by a vacuum cleaner.3.1.5 model, nthe designation of a group of vacuum cleaners
18、 having the same mechanical and electrical construction with onlycosmetic or nonfunctional differences.3.1.6 population, nthe total of all units of a particular model vacuum cleaner being tested.3.1.7 repeatability limit (r), nthe value below which the absolute difference between two individual test
19、 results obtained underrepeatability condition may be expected to occur with a probability of approximately 0.95 (95 %).3.1.8 repeatability standard deviation (Sr), nthe standard deviation of test results obtained under repeatability conditions.3.1.9 reproducibility limit (R), nthe value below which
20、 the absolute difference between two test results obtained underreproducibility conditions may be expected to occur with a probability of approximately 0.95 (95 %).3.1.10 reproducibility standard deviation (SR), nthe standard deviation of test results obtained under reproducibilityconditions.3.1.11
21、sample, na group of vacuum cleaners taken from a large collection of vacuum cleaners of one particular model whichserves to provide information that may be used as a basis for making a decision concerning the larger collection.3.1.12 standard air density, std, lb/ft3, natmospheric air density of 0.0
22、75 lb/ft3 (1.2014 Kg/m3).3.1.12.1 DiscussionThis value of air density corresponds to atmospheric air at a temperature of 68F (20C), 14.696 psi (101.325 kPa), andapproximately 30 % relative humidity.3.1.13 suction, inch of water, nin a vacuum cleaner, the absolute difference between ambient and subat
23、mospheric pressure.3.1.14 test run, nthe definitive procedure that produces the singular result of calculated maximum air power.3.1.15 test station pressure, Bt, inch of mercury,nfor a vacuum cleaner, the absolute barometric pressure at the test location(elevation) and test time.3.1.15.1 DiscussionI
24、t is not the equivalent mean sea level value of barometric pressure typically reported by the airport and weather bureaus. It issometimes referred to as the uncorrected barometric pressure (that is, not corrected to the mean sea level equivalent value). Referto 5.5 for additional information.3.1.16
25、unit, na single vacuum cleaner of the model being tested.4. Significance and Use4.1 The test results allow the comparison of the maximum potential air power available for cleaning tasks when tested underthe conditions of this test method. The test results do not indicate the actual air power present
26、 during the cleaning process due tothe effects of the various tools in use and surfaces being cleaned. During the nozzle on plenum chamber air performance testing,the brushroll is unloaded and this condition is not representative of the brushroll being in contact with carpet or other surfaces beingc
27、leaned.5. Apparatus5.1 Plenum ChamberSee Specification F431 or IEC 60312, Section 5.2.8.2 (Figure 13c).62885-2, Section 5.8.3.5.2 Water Manometers, or equivalent instruments. One to measure from 0 to 6 in. (152.4 mm) in increments of 0.01 in. (0.254mm), and one with increments of 0.1 in. (2.54 mm) f
28、or use in making measurements above 6 in. (152.4 mm). A single instrumenthaving a resolution of 0.01 in. (0.254 mm) over the entire required range may be used instead of two separate instruments.5.3 Wattmeter, to provide measurements accurate to within 61 %.5.4 Voltmeter, to provide measurements acc
29、urate to within 61 %.5.5 Barometer, with an accuracy of 60.05 in. of mercury (1.27 mm of mercury), capable of measuring and displaying absolutebarometric pressure, scale divisions 0.02 in. (0.51 mm) or finer.5.5.1 Mercury barometers, in general, measure and display the absolute barometric pressure.
30、Some corrections may be neededfor temperature and gravity. Consult the owners manual.F558 17a25.5.2 When purchasing an aneroid or electronic barometer, be sure to purchase one which displays the absolute barometricpressure, not the mean sea level equivalent barometric pressure value. These types of
31、barometers generally have temperaturecompensation built into them and do not need to be corrected for gravity.5.6 Sharp-Edge Orifice PlatesSee specifications in Specification F431.5.7 ThermometerSolid-stem, ambient thermometer having a range from 18 to 89F (or 8 to +32C) with graduations in 0.2F(0.1
32、C), conforming to the requirements for thermometer 63F (17.2C) as prescribed in Specification E1. As an alternative,thermometers S63F or S63C, as prescribed in Specification E2251, may be used. In addition, thermometric devices such asresistance temperature detectors (RTDs), thermistors or thermocou
33、ples of equal or better accuracy may be used.5.8 PsychrometerThermometers graduated in 0.2F (0.1C).5.9 Voltage-Regulator System, to control the input voltage to the vacuum cleaner. The regulator system shall be capable ofmaintaining the vacuum cleaners rated voltage 61 % and rated frequency having a
34、 wave form that is essentially sinusoidal with3 % maximum harmonic distortion for the duration of the test.6. Sampling6.1 A minimum of three units of the same model vacuum cleaner, selected at random in accordance with good statisticalpractice, shall constitute the population sample.6.1.1 To determi
35、ne the best estimate of maximum air power for the population of the vacuum cleaner model being tested, thearithmetic mean of the maximum air power of the sample from the population shall be established by testing it to a 90 % confidencelevel within 65 %.6.1.2 Annex A2 provides a procedural example f
36、or determining the 90 % confidence level and when the sample size shall beincreased (see Note 2).NOTE 2See Annex A2 for method of determining 90 % confidence level.7. Test Vacuum Cleaners7.1 New Test Vacuum Cleaners:7.1.1 Preconditioning a New Test Vacuum CleanerRun the vacuum cleaner in at rated vo
37、ltage 61 % and rated frequency withfilters in place.7.1.1.1 Preconditioning a Rotating Agitator Type Vacuum CleanerIn a stationary position, operate the vacuum cleaner for 1h with the agitator bristles not engaged on any surface.7.1.1.2 Preconditioning a Straight-Air Canister Vacuum CleanerOperate t
38、he vacuum cleaner for 1 h with a wide-open inlet(without hose).7.2 Used Test Vacuum Cleaners:7.2.1 Recondition a used test vacuum cleaner; prior to the initial test run as follows:7.2.1.1 Thoroughly remove excess dirt from the vacuum cleaner. Without using tools for disassembly, clean the entire out
39、ersurface, brushes, nozzle chamber, ductwork, inside of the chamber surrounding the primary filter, and inside hose and wands.7.2.1.2 For vacuum cleaners using disposable filters as the primary filters, use a new disposable primary filter from themanufacturer for each test. Install it as recommended
40、 by the vacuum cleaner manufacturer.7.2.1.3 For vacuum cleaners using water as the primary filter, empty the receptacle and refill as recommended by themanufacturer.7.2.1.4 For vacuum cleaners using non-disposable dirt receptacles, empty in accordance with the manufacturers instructionsand clean the
41、 receptacle until its weight is within 0.07 oz (2 g) of its original weight and install it as recommended by the vacuumcleaner manufacturer.NOTE 3It is preferable to conduct this test method on new test vacuum cleaners prior to any other ASTM test methods to avoid contamination thatcould cause perfo
42、rmance variations.7.3 Test Vacuum Cleaner SettingsIf various settings are provided, set the motor speed setting or suction regulator using themanufacturers specifications as provided in the instruction manual for normal operation. If a different setting is used, make a noteof the deviation in the te
43、st report.8. Procedure8.1 Preparation for Test:8.1.1 Prepare the test vacuum cleaner(s) in accordance with Section 7.8.1.2 Set the manometers to zero and check all instruments for proper operation.8.1.3 Record the test station pressure and the dry-bulb and wet-bulb temperature readings within 6 ft (
44、1.8 m) of the test area.Read the barometric pressure to the nearest 0.02 in. of mercury (0.51 mm of mercury), and the dry-bulb and wet-bulb temperaturesto the nearest 0.2F (or 0.1C)F558 17a38.1.3.1 The test area shall be free of major fluctuating temperature conditions due to air conditioners or air
45、 drafts that wouldbe indicated by a thermometer at the immediate test area.8.1.4 Connect a manometer or equivalent instrument to the plenum chamber.8.1.5 Connect a wattmeter and a voltmeter in accordance with power analyzer.Fig. 1.8.1.5.1 Wattmeter CorrectionIf needed, the indication may be correcte
46、d for voltmeter and wattmeter potential coil loss byopening the load circuit on the load side of the wattmeter with the line voltage at the operating value. The wattmeter currentconnection may be at its most sensitive position. Subtract this loss value from the total load indication to obtain the tr
47、ue load. Asan alternative method, use the following equation:Wc 5Wi 2V2/RT (1)where:Wc = corrected wattage,Wi = indicated wattage,V = voltmeter reading, andRT = RP RV/(RP + RV),where:RT = total resistance, ,RP = wattmeter potential coil resistance, , andRV = voltmeter coil resistance, .8.2 SetupAtta
48、chment Hose:8.2.1 Connect the hose assembly to the plenum chamber hose adapter and seal only this connection. See Fig. 21.8.2.1.1 The end of the hose assembly should be inserted inside the hose connector adapter and be perpendicular to the plenumchamber.8.2.1.2 The end of the hose assembly shall not
49、 project into the plenum chamber.8.2.2 The hose should be supported and kept straight and horizontal. Maintain the vacuum cleaner in its normal operatingorientation. If the hose is not intended to enter the vacuum cleaner horizontally, gradually bend the hose with a single bend fromthe intake port to the plenum chamber. Any restraining method should allow the hose coupling to seal at the cleaner. See Fig. 32.8.3 Test SetupCarpet Cleaning Mode:8.3.1 Mount the cleaner plate as shown in Fig. 1e of Specification F431 to
