# ASTM F1410-98 (Reapproved 2016)

Designation F1410 98 Reapproved 2016 An American National StandardStandard Test easuring Maximum Functional Wet Volume of UtilityVacuum Cleaners1This standard is issued under the fixed designation F1410; the number immediately following the designation indicates the year 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 This test is applicable to any vacuum cleanerthat is classified as a utility vac.1.2 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are for ina-tion only.1.3 This standard 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. Significance and Use2.1 This test covers a procedure to determine themaximum functional wet volume that the utility vac is capableof collecting.3. Apparatus3.1 Voltmeter, to measure to the cleaner, providingmeasurements accurate to within 61.3.2 Voltage Regulator SystemThe regulator shall be ca-pable of maintaining the rated voltage 61 and frequency61 Hz with sinusoidal wave .3.3 Temperature and Relative Humidity Indicators, to pro-vide temperature measurements accurate to within 61F 612C and humidity measurements accurate to within 62relative humidity.3.4 Weighing ScaleThe scale shall be accurate to 1 offull scale and have a weighing capacity of at least 250 lb 113.4kg.4. Materials4.1 Water.5. Sampling5.1 Test a sample of each basic model until a 90 confidence level about the mean is established within 65of the mean value. Test a minimum of three samples. Select allsamples at random in accordance with good statistical practice.NOTE 1See Appendix X1 for of determining 90 confidencelevel.6. Conditioning6.1 Test RoomThe test room should be maintained at70 6 5F 21 6 3C and 45 to 55 relative humidity.7. Procedure7.1 Equip the vac with a new filter.7.2 Weigh the empty vac including the power supply cord.Do not include the hose or any accessories.7.3 Unit must be on a level surface and the shut-off devicemust be in place if the unit is designed to be used with one.7.4 Level of the water to be picked up shall be lower thanthe floor level of vac such that no siphoning occurs.7.5 Tests are to be conducted at the nameplate voltage61 and frequency 61 Hz, when measured at theappliance plug. For cleaners with dual nameplate voltageratings, conduct tests at the highest voltage.7.6 Using the largest hose supplied with the unit, vacuumwater into the vac-tank. Maintain a water pick up rate of 2gal/min throughout the filling cycle.7.7 Collect water with the vac until either one of thefollowing occurs7.7.1 The unit stops collecting water, or7.7.2 Water overflows from the vac.7.8 Stop unit and disconnect hose from the vac. Any waterremaining in the hose shall not be included in the maximumfunctional volume.7.9 Weigh the filled vac, including the power supply cord.7.10 Calculate the maximum functional volume by dividingthe weight of the water collected by the weight per gallon ofwater as follows1This test is under the jurisdiction ofASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.23 on Filtration.Current edition approved April 1, 2016. Published April 2016. Originallyapproved in 1992. Last previous edition approved in 2011 as F1410 98 2011.DOI 10.1520/F1410-98R16.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1volume, gal 5weightlb vac filled 2 weightlb vac empty8.328lb/gal7.11 Record the maximum functional wet volume in gallonslitres to the nearest tenth.7.12 Repeat steps 7.1 through 7.12 two more times. Theaverage of the three tests represents the maximum wet func-tional volume that the utility vac is capable of collecting.8. Precision and Bias28.1 PrecisionThese statements are based on an interlabo-ratory test involving six laboratories and four units. The rangeof maximum functional volume of the units was from 3.8 to13.5 gal.8.1.1 Repeatability Single-Operator-Laboratory, Multi-day8.1.1.1 Repeatability for wet volume values of 5 gal andunder, within a laboratory divided by the average coefficientof variation was found to be 4.5 or less. Two values from asample of three should be considered suspect at the 95 confidence level if they differ by more than 12.8 .NOTE 2The percent difference larger smaller larger 100.8.1.1.2 Repeatability for wet volume values of over 5 gal,the standard deviation within a laboratory divided by theaverage coefficient of variation was found to be 2.5 or less.Two values from a sample of three should be consideredsuspect at the 95 confidence level if they differ by morethan 7.1 .NOTE 3The percent difference larger smaller larger 100.8.1.2 Reproducibility Multilaboratory, Multiday8.1.2.1 Reproducibility for wet volume values of 5 gal andunder, the standard deviation divided by the average coeffi-cient of variation with a single unit tested in differentlaboratories was found to be 10.7 or less. Two such valuesshould be considered suspect at the 95 confidence level ifthey differ by more than 33 .8.1.2.2 Reproducibility for wet volume values over 5 gal,the standard deviation divided by the average coefficient ofvariation with a single unit tested in different laboratories wasfound to be 3.2 or less. Two such values should beconsidered suspect at the 95 confidence level if they differby more than 11.5 .8.2 BiasNo justifiable statement can be made on the biasof this test for the properties listed. The true values ofthe properties cannot be established by acceptable referees.9. Keywords9.1 utility vacuum cleaner; wet volumeAPPENDIXNonmandatory InationX1. DETERMINATION OF 90 CONFIDENCE INTERVALX1.1 The most common and ordinarily the best singleestimate of the population mean is simply the arithmeticmean of the measurements. When a sample is taken from apopulation, the sample average will seldom be exactly thesame as the population average; however, it is hoped to befairly close so that the statement of confidence interval willbracket the true mean.X1.2 The following procedure gives an interval which isexpected to bracket , the true mean, 1001 of the time.This provides a 1001 confidence level. is the chanceof being wrong, therefore, 1 is the probability of beingcorrect.X1.2.1 Choose the desired confidence level, 1 .X1.2.2 Compute Mean XX51ni51nXiStandard Deviation, s 5 n Xi22 Xi2nn 2 1wheren number of units.X1.2.3 Compute the upper limit X and the lower limitXLX5 X1ts/nXL5 X2 ts/nwheret value from Table X1.1 at 1 2.X1.3 The interval from XLto Xis a 1001 confi-dence interval for the population mean; that is, we may assertwith 1001 confidence that XLA, select another unit for testwhich increases the sample size, and per X1.4.2 throughX1.4.6 with the larger sample.X1.4.8 Step 8If ts/n A, select another unit for testwhich increases the sample size, and per Steps 2 through6 with the larger sample.X1.5.8 Step 2Obtain unit scores.Unit No. 4Test Score ExplanationRun 1 5.3 maximum spread 5.4 5.2 0.2Run 2 5.4 maximum spread maximumscore 0.2 5.4 3.7 Run 3 5.2 less than the 6 repeatabilityAvg. 5.3Therefore, the average of these three runs is the unit score.X1.5.9 Step 3Compute mean X and standard devia-tions for the samples.Unit No. 1 5.0Unit No. 2 5.2Unit No. 3 5.5Unit No. 4 5.3Total 21.0Number of Units4 nMean X 21.04 5.25Standard Deviation,s 545.0215.2215.5215.3225.015.215.515.3244 2 15 0.208X1.5.10 Step 4Compute A; A 5ofX 0.05 5.25 0.263.X1.5.11 Step 5Find t value. For 90 confidence, 10 ; therefore, 1 2 0.95. t0.95for n 1 4units132.353.X1.5.12 Step 6Determine the quantity t sn andcompare to A.t3sn52.35330.20840.245.0.263Therefore proceed to Step 8.NOTE X1.2With sufficient units, t s/n will become less than A;and Step 7 is followed X1.5.7 until this occurs.X1.5.13 Step 8If ts/n,A, a desired 90 confidenceinterval has been obtained. The final Xcan be used as anestimate of the population mean. Xfrom Step 3X1.5.9 5.25; therefore, 5.25 is an acceptable estimate of themean maximum functional volume for the model line sampledand tested according to this procedure.F1410 98 20164ASTM 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 patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. 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