1、Designation: F 1284 09An American National StandardStandard Test Method forEvaluating Carpet Embedded Dirt Removal Effectiveness ofResidential Central Vacuum Cleaning Systems1This standard is issued under the fixed designation F 1284; the number immediately following the designation indicates the ye
2、ar oforiginal adoption or, in the case of revision, the year of last revision. 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 1.1 This test method covers only a laboratory test for
3、determining the relative carpet dirt removal effectives ofresidential central vacuum cleaning systems when tested underspecified conditions.1.2 This test method is applicable to residential centralvacuum cleaning systems intended for cleaning carpets.1.3 This test method applies only to embedded dir
4、t removalfrom carpets, not 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
5、 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 ASTM
6、Standards:2D75 Practice for Sampling AggregatesE11 Specification for Woven Wire Test Sieve Cloth andTest SievesE 177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE 691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodF 608 Test Method
7、for Evaluation of Carpet Embedded DirtRemoval Effectiveness of Household/Commercial 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
8、 of an ElectricMotorized NozzleF 1038 Test Method for Motor Life Evaluation of a 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 ofVacuu
9、mCleaners While Cleaning Carpets3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 cleaning ability, nthe potential of a vacuum cleanerto remove dirt from a surface (sometimes referred to in theindustry as cleanability, dry).3.1.2 model, nthe designation of a group of vacuumclean
10、ers 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, na group of vacuum cleaners taken from alarge collection of vacuum cleaners of one pa
11、rticular model,which 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.3.1.6 test unit, na single vacuum cleaner of the modelbeing tested.4. Significance an
12、d Use4.1 This test method provides a laboratory test for determin-ing the relative carpet dirt removal effectiveness of residentialcentral vacuum cleaning systems when tested under standardconditions and on representative types of carpets.4.2 This laboratory test method may not give a representa-tio
13、n of carpet embedded dirt cleaning effectiveness in thehome.4.3 In order to provide a uniform basis for measuringperformance as described in 1.2, standardized test carpets andstandardized test dirt are employed in this procedure.1This test method is under the jurisdiction ofASTM Committee F11 on Vac
14、uumCleaners and is the direct responsibility of Subcommittee F11.21 on Cleanability.Current edition approved July 1, 2009. Published August 2009. Originallyapproved in 1992. Last previous edition approved in 2008 as F 1284 04 (2008).2For referenced ASTM standards, visit the ASTM website, www.astm.or
15、g, 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 Conshohocken, PA 19428-2959, United States.4.4 The resul
16、ts reflect a non-loaded cleaning capability andmay not be representative of cleaning capabilities under dirtloading conditions.5. Apparatus5.1 Weighing Scale3(for weighing carpets; see 9.1.1.5 and9.4.5)The scale must be accurate to 0.035 oz (1 g) and havea weighing capacity of at least 15 lb (6.82 k
17、g).5.2 Weighing Scale4(for weighing test dirt and non-disposable dirt receptacles; see 9.2.1.2 and 9.4.12)The scalemust be accurate to 0.0035 oz (0.10 g) and have a weighingcapacity of at least 1.1 lb (500 g).5.3 Stopwatch with a second hand, or other type of equip-ment capable of establishing the s
18、pecified rate of movementand total cycle time.5.4 Voltmeter, to measure input volts to the cleaning systemto provide measurements accurate to within 61%.5.5 Voltage Regulator System, to control the input voltage tothe vacuum cleaner. The regulator shall be capable of main-taining the vacuum cleaners
19、 rated voltage 61 % and ratedfrequency having a wave form that is essentially sinusoidalwith 3 % max harmonic distortion for the duration of the test.5.6 Dirt Embedment Tool, with the roller locked (see Fig. 1).5.7 Dirt DispenserDispensing system that provides theoperator with a method to distribute
20、 the test dirt uniformly onthe carpet test area.5.8 Carpet Conditioning Equipment, to support the testcarpet during new carpet conditioning and the removal ofresidual dirt from the test carpet before each test run (Fig. 2).5.9 Rotating Agitator Conditioning Vacuum Cleaner/Equipment, for conditioning
21、 new test carpets and removingresidual dirt from the test carpet 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
22、this test method.5.10 Temperature and Humidity Indicators, to provide tem-perature measurements accurate to within 61F (612 C) andhumidity measurements accurate to within 62 % relativehumidity.5.11 Supporting SurfaceA flat surface consisting of apiece of34-in. (19-mm) thick exterior-grade plywood wi
23、th the“A” surface upward to support the test carpet and pad. 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 9.2.4).5.13 Straight-Air
24、 Canister Reference Vacuum Cleaner, one,for calibrating test carpets (see 9.2.4).5.14 Orifice Adapter TubeSee Fig. 3.6. Materials6.1 Standard Carpets, conforming to Specification F 655.6.2 Standard Carpet Padding, conforming to SpecificationF 655.6.3 Test Dirt (see Annex A1).6.3.1 Silica Sand(see An
25、nex A1).6.3.2 Talcsee (Annex A1).3The OHAUS Models GT-8000, LB30-CO and 1119D, all available fromOHAUS, Inc. Florham Park, NJ, or the equivalent, have been found suitable for thispurpose. It is recommended that the scale read directly in grams.4The Mettler-Toledo Model PM 2000, available from Mettle
26、r-Toledo, Inc., Box71, Highstown, 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 that the seal read directly in grams.FIG. 1 Dirt Embedment ToolF12840927. Sampling7.1 A minimum of three units
27、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 the cleaning abilityeffectiveness for the population of the vacuum cleaner modelbeing tested, the arithmetic mean of the clean
28、ing ability ratingof the sample 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 increa
29、sed.NOTE 2See Annex A3 for method of determining 90 % confidencelevel.8. Conditioning8.1 Test RoomMaintain the test room in which all condi-tioning and vacuum cleaner testing is done at 70 6 5F (21 63C) and 45 to 55 % relative humidity.8.2 All components involved in the test must remain and beexpose
30、d in the controlled environment for at least 16 h prior tothe start of the test.9. Procedure9.1 Test Carpet Preparation (see Fig. 4):9.1.1 Preconditioning New Test Carpet Samples:9.1.1.1 New Test Carpets shall conform to SpecificationF 655.9.1.1.2 Cut a sample of each test carpet to a size of 27 by
31、72in. (690 by 1830 mm) minimum. If the warp direction or “lay”FIG. 2 Carpet Cleaning RackF1284093of the carpet can be determined, it shall be in the 72 in.direction as indicated in Fig. 5. Carpets shall be bound on allsides.9.1.1.3 Mark the test area on each carpet as indicated in Fig.5.9.1.1.4 Prec
32、ondition 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 than 0.07 oz (2 g) of carpet fiberis picked up in 5 min.(2) Run ten carpet-embedded dirt removal effectivenesstest run
33、s in accordance with Sections 9.4.6 9.4.19.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 preconditioned weight of thecar
34、pet.9.1.1.6 Run a test carpet calibration in accordance withSection 9.3.9.1.2 Reconditioning Used Test Carpet Samples:9.1.2.1 Initial Daily Reconditioned Weight: At the begin-ning of each day, it is necessary to remove any dirt that mayhave settled on the carpet surface and stabilize the moisturecon
35、tent 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 cleaner using thepro
36、cedure 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 requirement of 9.
37、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. 2)with the pile side down. Run the rotating agitator conditioningvacuum cleaner over the c
38、arpet for 2 min concentrating on thetest 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 pad, on theplywood supporting surface, and clean it with the rotatingagit
39、ator 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 9.1.2.3 (2), alwaysending with the pile side up, until the carpet weight
40、 meets therequirement 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.(6) Reconditioning equipment that uses nondisposablefilters should have the filter or filters cleaned after every fourcarpet
41、 reconditioning runs or more often, if required.FIG. 3 Orifice Adapter TubeF1284094NOTE 4A high-cleaning performance rotating agitator vacuum cleaner is recommended for reducing the time to recondition the carpet.FIG. 4 Carpet Conditioning/Calibration ProcedureNOTECleaning test area should be positi
42、oned as shown. First forward stroke of rotating agitator or carpet is in direction with lay of carpet.FIG. 5 Test CarpetF12840959.1.3 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 car
43、pet padding when it has holes, tears,or other signs of wear.9.2 Preparation of Test Systems and Cleaning Tools (seeFig. 6):9.2.1 New Test Systems and Cleaning Tools:9.2.1.1 Run the system in at rated voltage 61 % and ratedfrequency with filters in place.(1) If a rotating agitator type cleaning tool
44、is included withthe system operate it for 1 h with agitator bristles not engagedon any surface.9.2.1.2 For vacuum cleaners with non-disposable dirt recep-tacles, weigh and record the receptacles original weight to thenearest 0.0035 oz (0.10 g). This may not be possible with somesystems in which the
45、nondisposable filter cannot be removed.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 test system.Without using tools for disassembly, clean the entire outersurface, brushes, nozzle chamber,
46、 ductwork, inside of thechamber surrounding the primary filter, and inside hose andwands. Check the condition of all mechanisms for signs ofwear or damage. (See Note 5.)(2) For systems using disposable filters as the primaryfilters, use a new disposable primary filter from the manufac-turer for each
47、 test run. Weigh the filter to the nearest 0.0035 oz(0.10 g) and install it as recommended by the vacuum cleanermanufacturer. Thoroughly clean the inside of the chambersurrounding the primary filter each time the filter is replaced.(3) For systems using cloth filter bags or other types ofnondisposab
48、le dirt receptacles, empty according to manufac-turers instructions after each test run, and clean the cloth filterbag or nondisposable dirt receptacle until its weight is withinFIG. 6 Vacuum Cleaner Conditioning ProcedureF12840960.07 oz (2 g) of its original weight. Thoroughly clean the insideof th
49、e chamber surrounding the primary filter. Weigh thereceptacle to the nearest 0.0035 oz (0.10 g) and install it asrecommended by the vacuum cleaner manufacturer.NOTE 5It is recommended that a replaceable brush drive belt forcleaning tool agitators be changed after each four test runs, if consideredapplicable, using manufacturers instructions. Any other maintenancetask, such as cleaning the brush belt with distilled water, should only bedone in accordance with manufacturers recommendations.9.2.3 Test System and Tool Settings:9.2.3.1 If various setti
