1、Designation: F608 11An American National StandardStandard Test Method forEvaluation of Carpet Embedded Dirt Removal Effectivenessof Household/Commercial Vacuum Cleaners1This standard is issued under the fixed designation F608; the number immediately following the designation indicates the year of or
2、iginaladoption or, in the case 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 only a laboratory test fordetermining the
3、relative carpet dirt removal effectiveness ofhousehold/commercial vacuum cleaners when tested underspecified conditions.1.2 This test method is applicable to household/commercialtypes of upright, canister, and combination cleaners.1.3 The test method applies to embedded dirt removal fromcarpets, not
4、 the removal of surface litter and debris.1.4 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.5 This standard does not purport to addre
5、ss 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:2D75 Practice fo
6、r Sampling AggregatesE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF655 Specification for Test Carpets and Pads f
7、or VacuumCleaner TestingF884 Test Method for Motor Life Evaluation of a Built-In(Central Vacuum) Vacuum CleanerF922 Test Method for Motor Life Evaluation of an ElectricMotorized NozzleF1038 Test Method for Motor Life Evaluation of a Canister,Hand-held, Stick, and Utility Type Vacuum Cleaner With-out
8、 a Driven AgitatorF1334 Test Method for Determining A-Weighted SoundPower Level of Vacuum CleanersF1409 Test Method for Straight Line Movement of VacuumCleaners While Cleaning Carpets3. Terminology3.1 Definitions:3.1.1 cleaning ability, dry, nthe potential of a vacuumcleaner to remove dirt from a su
9、rface (sometimes referred to inthe 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
10、cleaner being tested.3.1.4 repeatability limit, rthe value below which theabsolute difference between two individual test results obtainedunder repeatability condition may be expected to occur with aprobability of approximately 0.95 (95 %).3.1.5 repeatability standard deviation, Srthe standard de-vi
11、ation of test results obtained under repeatability conditions.3.1.6 reproducibility limit, Rthe value below which theabsolute difference between two test results obtained underreproducibility conditions may be expected to occur with aprobability of approximately 0.95 (95 %).1This test method is unde
12、r the jurisdiction ofASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.21 on Cleanability.Current edition approved May 1, 2011. Published June 2011. Originallyapproved in 1979. Last previous edition approved in 2009 as F608 09. DOI:10.1520/F0608-11.2For refere
13、nced 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West
14、Conshohocken, PA 19428-2959, United States.3.1.7 reproducibility standard deviation, SRthe standarddeviation of test results obtained under reproducibility condi-tions.3.1.8 sample, na group of vacuum cleaners taken from alarge collection of vacuum cleaners of one particular modelwhich serves to pro
15、vide information that may be used as a basisfor making a decision concerning the larger collection.3.1.9 test run, nthe definitive procedure that produces asingular measured result.3.1.10 unit, na single vacuum cleaner of the model beingtested.4. Significance and Use4.1 This test method provides an
16、indication of the capabilityof the vacuum cleaner to remove embedded dirt from carpet-ing. This test method is based upon results of home cleaningtests so that, in most cases, a reasonable correlation existsbetween home and laboratory results. The amount of dirtpicked up in the laboratory test may n
17、ot be the same as in thehome; however, it will show that, in most cases, a vacuumcleaner that performs well in the laboratory will perform wellin a home. Laboratory results may differ due to variations inthe homes, carpets, dirt, and other factors (see Section 6).4.2 In order to provide a uniform ba
18、sis for measuring theperformance described in 1.1, standardized test carpets and astandardized test dirt are employed in this procedure.5. Apparatus5.1 Weighing Scale for Weighing Carpets, accurate to 0.035oz (1 g) and having a weighing capacity of at least 15 lb (6.82kg).35.2 Weighing Scale (for We
19、ighing Test Dirt and Dirt Con-tainer, (see 9.2.2.1(2), accurate to 0.0035 oz (0.10 g) andhaving a weighing capacity of at least 1.1 lb (500 g).45.3 Stopwatch, with a second hand or other type of equip-ment capable of establishing the specified rate of movementand total cycle time.5.4 Voltmeter, to m
20、easure input volts to the vacuum cleaner,to provide measurements accurate to within 61%.5.5 Voltage-Regulator System, to control the input voltageto the vacuum cleaner. The regulator shall be capable ofmaintaining the vacuum cleaners rated voltage 61 % andrated frequency having a wave form that is e
21、ssentially sinusoi-dal with 3 % maximum harmonic distortion for the duration ofthe test.5.6 Dirt Embedment Tool, with the roller locked (see Fig. 3).5.7 Dirt DispenserDispensing system that provides theoperator with a method to distribute the test dirt uniformly onthe carpet test area.5.8 Carpet-Con
22、ditioning Equipment, to support the testcarpet during new carpet conditioning and the removal ofresidual dirt from the test carpet before each test run (Fig. 4).5.9 Rotating Agitator Conditioning Vacuum Cleaner/Equipment, for conditioning new test carpets and removingresidual dirt from the test carp
23、et before each test run. Thiscannot be the unit being tested.NOTE 1Automated methods for spreading the test dirt, embedding thetest dirt, and cleaning and reconditioning the test carpets are acceptable ifthey do not change the results of this test method.5.10 Temperature and Humidity Indicators, to
24、provide tem-perature measurements accurate to within 61F (612 C) andhumidity measurements accurate to within 2 % relative humid-ity.5.11 Supporting SurfaceA flat surface consisting of apiece of34-in. (19-mm) thick exterior grade plywood with the“A” surface upward to support the test carpet and pad.
25、Ifnecessary, the four corners (only) of the test carpet and padmay be fastened to the supporting surface by any acceptablemeans.5.12 Rotating Agitator Reference Vacuum Cleaner, one, forcalibrating test carpets (see 9.3).5.13 Straight-Air Canister Reference Vacuum Cleaner, one,for calibrating test ca
26、rpets (see 9.3).6. Materials6.1 Standard carpets conforming to Specification F655,6.2 Standard carpet padding conforming to SpecificationF655,6.3 Test dirt (see Annex A1),6.3.1 Silica sand (see Annex A1), and6.3.2 Talc (see Annex A1).7. Sampling7.1 A minimum of three units of the same model vacuumcl
27、eaner selected at random in accordance with good statisticalpractice shall constitute the population sample.7.1.1 To determine the best estimate of cleaning abilityeffectiveness for the population of the vacuum cleaner modelbeing tested, the arithmetic mean of the cleaning ability ratingof the sampl
28、e from the population shall be established bytesting it to a 90 % confidence level within 65 % of the meanvalue of the cleaning ability rating.7.1.2 Annex A3 provides a procedural example for deter-mining the 90 % confidence level and when the sample sizeshall be increased.NOTE 2See Annex A3 for met
29、hod of determining 90 % confidencelevel.8. Conditioning8.1 Test RoomMaintain the test room in which all condi-tioning and vacuum cleaner testing is performed at 70 6 5F(21 6 3C) and 45 to 55 % relative humidity.3The sole source of supply of the apparatus (OHAUS Models GT-8000,LB30-CO and 1119D) know
30、n to the committee at this time is OHAUS, Inc.,Florham Park, NJ. (It is recommended that the scale read directly in grams.) If youare aware of alternative suppliers, please provide this information to ASTMInternational Headquarters. Your comments will receive careful consideration at ameeting of the
31、 responsible technical committee,1which you may attend.4The Mettler-Toledo Model PM 2000, available from Mettler-Toledo, Inc. Box71, Hightstown, NJ 08520, the OHAUS Model GT-8000 available from OHAUS,Inc. Florham Park, NJ, or equivalent, have been found suitable for this purpose. (Itis recommended t
32、hat the scale read directly in grams.) If you are aware of alternativesuppliers, please provide this information to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsibletechnical committee,1which you may attend.F608 1128.2 All components inv
33、olved 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 Carpet Preparation:9.1.1 Preconditioning New Test Carpet Samples:9.1.1.1 New test carpets shall conform to SpecificationF655.9.1.1.2 Cut a sample of each te
34、st carpet to a size of 27 by 72in. (690 by 1830 mm) minimum. If the warp direction or “lay”of the carpet can be determined, it shall be in the 72 in.direction as indicated in Fig. 5. Carpets shall be bound on allsides.FIG. 1 Carpet Conditioning/Calibration ProcedureF608 1139.1.1.3 Mark the test area
35、 on each carpet as indicated in Fig.5.9.1.1.4 Precondition New Test Carpet Samples:(1) Precondition the entire area of the carpet by cleaningwith the rotating agitator conditioning vacuum cleaner. Con-tinue the operation until less than2gofcarpet fiber is pickedup in 5 min.(2) Run ten carpet-embedde
36、d dirt removal effectivenesstest runs in accordance with 9.4.2-9.4.18.NOTE 3Recondition the new test carpet following each precondition-ing test run. It is not necessary, however, to meet the requirements set forthin 9.1.2.1 with respect to the preconditioned weight.9.1.1.5 Weigh and record the prec
37、onditioned weight of thecarpet.9.1.1.6 Run a test carpet calibration in accordance with 9.3.9.1.2 Reconditioning Used Test Carpet Samples:9.1.2.1 Initial Daily Reconditioned WeightAt the begin-ning of each day, it is necessary to remove any dirt that mayhave settled on the carpet surface and stabili
38、ze the moisturecontent of the carpet. Clean the carpet with a rotating agitatorconditioning vacuum cleaner until its weight does not exceedthe initial reconditioned weight from the previous day oftesting by more than 0.07 oz (2 g) or less than 0.035 oz (1 g)is picked up by the conditioning vacuum cl
39、eaner using theprocedure in 9.1.2.3.9.1.2.2 Following each test run, it is necessary to remove theresidual dirt and stabilize the moisture content of the carpet.Clean the carpet with a rotating agitator conditioning vacuumcleaner until its weight does not exceed the initial dailyreconditioned weight
40、 requirement of 9.1.2.1 by more than 0.07oz (2 g) or less than 0.035 oz (1 g) is picked up by theconditioning vacuum cleaner using the following procedure.9.1.2.3 Procedure:(1) Place the carpet on the carpet cleaning rack (Fig. 4)with the pile side down. Run the rotating agitator conditioningvacuum
41、cleaner over the carpet for 2 min, concentrating on theFIG. 2 Vacuum Cleaner Conditioning ProcedureF608 114test area at 1.8 ft/s (0.55 m/s); then run the rotating agitatorconditioning vacuum cleaner thoroughly over the entire carpetarea at least one time.(2) Place the carpet (pile side up) on the pa
42、d, on theplywood supporting surface, and clean it with the rotatingagitator conditioning vacuum cleaner for 2 min, concentratingon the test area; then run the rotating agitator vacuum cleanerthoroughly over the entire area at least one time.(3) Weigh the carpet.(4) Keep alternating 9.1.2.3(1) and 9.
43、1.2.3(2), alwaysending with the pile side up, until the carpet weight meets therequirements of 9.1.2.1 or 9.1.2.2.(5) Change the disposable primary filter after a maximumof every 4 runs on the conditioning vacuum cleaner or moreoften if required.NOTE 4A high-cleaning performance rotating agitator va
44、cuumcleaner is recommended for reducing the time to recondition the carpet.9.1.3 Reconditioning Used Carpet Padding:9.1.3.1 Clean the carpet padding by shaking weekly or moreoften, if necessary, to remove any collected dirt.9.1.3.2 Replace the carpet padding when it has holes, tears,or other signs o
45、f wear.9.2 Preparation of Test Vacuum Cleaners:9.2.1 New Test Vacuum Cleaners:9.2.1.1 Run the vacuum cleaner in at rated voltage 61%and rated frequency with filters in place.(1) Preconditioning a Rotating Agitator Type VacuumCleanerIn a stationary position, operate the vacuum cleanerfor 1 h with the
46、 agitator bristles not engaged on any surface.(2) Preconditioning a Straight-Air Type Vacuum CleanerOperate the vacuum cleaner for 1 h with a wide-open inlet(without hose).9.2.1.2 For vacuum cleaners with non-disposable dirt recep-tacles, weigh and record the receptacles original weight to theneares
47、t 0.0035 oz (0.10 g).9.2.2 Used Test Vacuum Cleaners:9.2.2.1 Recondition a used test vacuum cleaner, prior toeach test run, as follows:(1) Thoroughly remove excess dirt from the vacuumcleaner. Without using tools for disassembly, clean the entireouter surface, brushes, nozzle chamber, ductwork, insi
48、de of thechamber surrounding the primary filter, and inside hose andwands. Check the condition of all mechanisms for signs ofwear or damage.(2) For vacuum cleaners using disposable filters as theprimary filters, use a new disposable primary filter from themanufacturer for each test run. Weigh the fi
49、lter to the nearest0.0035 oz (0.10 g) and install it as recommended by thevacuum cleaner manufacturer.(3) For vacuum cleaners using water as the primary filter,empty the receptacle and refill as recommended by the manu-facturer.(4) For vacuum cleaners using non-disposable dirt recep-tacles, empty in accordance with the manufacturers instruc-tions after each test run and clean the receptacle until its weightis within 0.07 oz (2 g) of its original weight. Weigh thereceptacle to the nearest 0.0035 oz (0.10 g) and install it asrecommended by the vacuum
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