1、Designation: F608 11F608 13 An 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 ye
2、ar of originaladoption 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 for determi
3、ning the relative carpet dirt removal effectiveness ofhousehold/commercial vacuum cleaners when tested under specified conditions.1.2 This test method is applicable to household/commercial types of upright, canister, and combination cleaners.1.3 The test method applies to embedded dirt removal from
4、carpets, not the removal of surface litter and debris.1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information only and are not considered standard.1.5 This standard does not pu
5、rport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D75
6、 Practice for Sampling AggregatesE11 Specification for Woven Wire Test Sieve Cloth and Test SievesE177 Practice for Use of the Terms Precision and Bias in ASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test MethodF655 Specification for Test Car
7、pets and Pads for Vacuum Cleaner TestingF884 Test Method for Motor Life Evaluation of a Built-In (Central Vacuum) Vacuum CleanerF922 Test Method for Motor Life Evaluation of an Electric Motorized NozzleF1038 Test Method for Motor Life Evaluation of a Canister, Hand-held, Stick, and Utility Type Vacu
8、um Cleaner Without aDriven AgitatorF1334 Test Method for Determining A-Weighted Sound Power Level of Vacuum CleanersF1409 Test Method for Straight Line Movement of Vacuum Cleaners While Cleaning Carpets3. Terminology3.1 Definitions:3.1.1 cleaning ability, dry, nthe potential of a vacuum cleaner to r
9、emove dirt from a surface (sometimes referred to in theindustry as cleanability, dry).3.1.2 model, nthe designation of a group of vacuum cleaners having identical mechanical and electrical construction with onlycosmetic or nonfunctional differences.3.1.3 population, nthe total of all units of a part
10、icular model vacuum cleaner being tested.3.1.4 repeatability limit, rthe value below which the absolute difference between two individual test results obtained underrepeatability condition may be expected to occur with a probability of approximately 0.95 (95 %).3.1.5 repeatability standard deviation
11、, Srthe standard deviation of test results obtained under repeatability conditions.1 This test method is under the jurisdiction of ASTM Committee F11 on Vacuum Cleaners and is the direct responsibility of Subcommittee F11.21 on Cleanability.Current edition approved May 1, 2011Aug. 1, 2013. Published
12、 June 2011August 2013. Originally approved in 1979. Last previous edition approved in 20092011 asF608 09.F608 11. DOI: 10.1520/F0608-11.10.1520/F0608-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM St
13、andardsvolume information, refer to the standards Document Summary page on the ASTM website.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 to the previous version. Becauseit may not be technically possib
14、le 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.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West
15、 Conshohocken, PA 19428-2959. United States13.1.6 reproducibility limit, Rthe value below which the absolute difference between two test results obtained underreproducibility conditions may be expected to occur with a probability of approximately 0.95 (95 %).3.1.7 reproducibility standard deviation,
16、 SRthe standard deviation of test results obtained under reproducibility conditions.3.1.8 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 l
17、arger collection.3.1.9 test run, nthe definitive procedure that produces a singular measured result.3.1.10 unit, na single vacuum cleaner of the model being tested.4. Significance and Use4.1 This test method provides an indication of the capability of the vacuum cleaner to remove embedded dirt from
18、carpeting.This test method is based upon results of home cleaning tests so that, in most cases, a reasonable correlation exists between homeand laboratory results. The amount of dirt picked up in the laboratory test may not be the same as in the home; however, it willshow that, in most cases, a vacu
19、um cleaner that performs well in the laboratory will perform well in a home. Laboratory resultsmay differ due to variations in the homes, carpets, dirt, and other factors (see Section 6).4.2 In order to provide a uniform basis for measuring the performance described in 1.1, standardized test carpets
20、 and astandardized test dirt are employed in this procedure.5. Apparatus5.1 Weighing Scale for Weighing Carpets, accurate to 0.035 oz (1 g) and having a weighing capacity of at least 15 lb (6.82 kg).35.2 Weighing Scale (for Weighing Test Dirt and Dirt Container, (see 9.2.2.1(2), accurate to 0.0035 o
21、z (0.10 g) and having aweighing capacity of at least 1.1 lb (500 g).45.3 Stopwatch, with a second hand or other type of equipment capable of establishing the specified rate of movement and totalcycle time.5.4 Voltmeter, to measure input volts to the vacuum cleaner, to provide measurements accurate t
22、o within 61 %.5.5 Voltage-Regulator System, to control the input voltage to the vacuum cleaner. The regulator shall be capable of maintainingthe vacuum cleaners rated voltage61 % and rated frequency having a wave form that is essentially sinusoidal with 3 % maximumharmonic distortion for the duratio
23、n of the test.5.6 Dirt Embedment Tool, with the roller locked (see Fig. 3).5.7 Dirt DispenserDispensing system that provides the operator with a method to distribute the test dirt uniformly on thecarpet test area.5.8 Carpet-Conditioning Equipment, to support the test carpet during new carpet conditi
24、oning and the removal of residual dirtfrom the test carpet before each test run (Fig. 4).5.9 Rotating Agitator Conditioning Vacuum Cleaner/Equipment, for conditioning new test carpets and removing residual dirtfrom the test carpet before each test run. This cannot be the unit being tested.NOTE 1Auto
25、mated methods for spreading the test dirt, embedding the test dirt, and cleaning and reconditioning the test carpets are acceptable if theydo not change the results of this test method.5.10 Temperature and Humidity Indicators, to provide temperature measurements accurate to within 61F (612 C) andhum
26、idity measurements accurate to within 2 % relative humidity.5.11 Supporting SurfaceA flat surface consisting of a piece of 34-in. (19-mm) thick exterior grade plywood with the “A”surface upward to support the test carpet and pad. If necessary, the four corners (only) of the test carpet and pad may b
27、e fastenedto the supporting surface by any acceptable means.5.12 Rotating Agitator Reference Vacuum Cleaner, one, for calibrating test carpets (see 9.3).5.13 Straight-Air Canister Reference Vacuum Cleaner, one, for calibrating test carpets (see 9.3).3 The sole source of supply of the apparatus (OHAU
28、S Models GT-8000, LB30-CO and 1119D) known to the committee at this time is OHAUS, Inc., Florham Park, NJ.(It is recommended that the scale read directly in grams.) If you are aware of alternative suppliers, please provide this information toASTM International Headquarters. Yourcomments will receive
29、 careful consideration at a meeting of the responsible technical committee,1 which you may attend.4 The Mettler-Toledo Model PM 2000, available from Mettler-Toledo, Inc. Box 71, Hightstown, NJ 08520, the OHAUS Model GT-8000 available from OHAUS, Inc.Florham Park, NJ, or equivalent, have been found s
30、uitable for this purpose. (It is recommended that the scale read directly in grams.) If you are aware of alternative suppliers,please provide this information to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee,1whi
31、ch you may attend.F608 1326. Materials6.1 Standard carpets conforming to Specification F655,6.2 Standard carpet padding conforming to Specification F655,6.3 Test dirt (see Annex A1),6.3.1 Silica sand (see Annex A1), and6.3.2 Talc (see Annex A1).7. Sampling7.1 Aminimum of three units of the same mode
32、l vacuum cleaner selected at random in accordance with good statistical practiceshall constitute the population sample.FIG. 1 Carpet Conditioning/Calibration ProcedureF608 1337.1.1 To determine the best estimate of cleaning ability effectiveness for the population of the vacuum cleaner model beingte
33、sted, the arithmetic mean of the cleaning ability rating of the sample from the population shall be established by testing it to a90 % confidence level within 65 % of the mean value of the cleaning ability rating.7.1.2 Annex A3 provides a procedural example for determining the 90 % confidence level
34、and when the sample size shall beincreased.NOTE 2See Annex A3 for method of determining 90 % confidence level.8. Conditioning8.1 Test RoomMaintain the test room in which all conditioning and vacuum cleaner testing is performed at 70 6 5F (21 63C) and 45 to 55 % relative humidity.8.2 All components i
35、nvolved in the test shall remain and be exposed in the controlled environment for at least 16 h prior to thestart 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 Specification F655.FIG. 2 Vacuum Cleaner Condi
36、tioning ProcedureF608 1349.1.1.2 Cut a sample of each test carpet to a size of 27 by 72 in. (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 all sides.9.1.1.3 Mark the test a
37、rea 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 cleaning with the rotating agitator conditioning vacuum cleaner. Continue theoperation until less than 2 g of carpet fiber is picked up in 5 min.(2) Run ten carpet
38、-embedded dirt removal effectiveness test runs in accordance with 9.4.2-9.4.18.NOTE 3Recondition the new test carpet following each preconditioning test run. It is not necessary, however, to meet the requirements set forth in9.1.2.1 with respect to the preconditioned weight.9.1.1.5 Weigh and record
39、the preconditioned weight of the carpet.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 beginning of each day, it is necessary to remove any dirt that may havesettled on the carpet surface and
40、 stabilize the moisture content of the carpet. Clean the carpet with a rotating agitator conditioningvacuum cleaner until its weight does not exceed the initial reconditioned weight from the previous day of testing by more than0.07 oz (2 g) or less than 0.035 oz (1 g) is picked up by the conditionin
41、g vacuum cleaner using the procedure in 9.1.2.3.9.1.2.2 Following each test run, it is necessary to remove the residual dirt and stabilize the moisture content of the carpet. Cleanthe carpet with a rotating agitator conditioning vacuum cleaner until its weight does not exceed the initial daily recon
42、ditionedweight requirement of 9.1.2.1 by more than 0.07 oz (2 g) or less than 0.035 oz (1 g) is picked up by the conditioning vacuumcleaner 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 con
43、ditioning vacuumcleaner over the carpet for 2 min, concentrating on the test area at 1.8 ft/s (0.55 m/s); then run the rotating agitator conditioningvacuum cleaner thoroughly over the entire carpet area at least one time.(2) Place the carpet (pile side up) on the pad, on the plywood supporting surfa
44、ce, and clean it with the rotating agitatorconditioning vacuum cleaner for 2 min, concentrating on the test area; then run the rotating agitator vacuum cleaner thoroughlyover 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), always ending with the
45、 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 maximum of every 4 runs on the conditioning vacuum cleaner or more oftenif required.NOTE 4A high-cleaning performance rotating agitator vacuum cleaner is recommended fo
46、r reducing the time to recondition the carpet.FIG. 3 Dirt Embedment ToolF608 1359.1.3 Reconditioning Used Carpet Padding:9.1.3.1 Clean the carpet padding by shaking weekly or more often, if necessary, to remove any collected dirt.9.1.3.2 Replace the carpet padding when it has holes, tears, or other
47、signs of wear.FIG. 4 Carpet Cleaning RackNOTE 1Cleaning test area should be positioned as shown. First forward stroke of cleaner is in direction with “lay” of carpet.FIG. 5 Test CarpetF608 1369.2 Preparation of Test Vacuum Cleaners:9.2.1 New Test Vacuum Cleaners:9.2.1.1 Run the vacuum cleaner in at
48、rated voltage 61 % and rated frequency with filters in place.(1) Preconditioning a Rotating Agitator Type Vacuum CleanerIn a stationary position, operate the vacuum cleaner for 1 hwith the agitator bristles not engaged on any surface.(2) Preconditioning a Straight-Air Type Vacuum CleanerOperate the
49、vacuum cleaner for 1 h with a wide-open inlet (withouthose).9.2.1.2 For vacuum cleaners with non-disposable dirt receptacles, weigh and record the receptacles original weight to thenearest 0.0035 oz (0.10 g).9.2.2 Used Test Vacuum Cleaners:9.2.2.1 Recondition a used test vacuum cleaner, prior to each test run, as follows:(1) Thoroughly remove excess dirt from the vacuum cleaner. Without using tools for disassembly, clean the entire outersurface, brushes, nozzle chamber, ductwork, inside of the chamber surrounding the primary filter, and insi
