1、Designation:F141098(Reapproved 2011)An American National StandardStandard Test Method forMeasuring 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
2、 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 method is applicable to any vacuum cleanerthat is classified as a utility
3、 vac.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are for informa-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 establ
4、ish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Significance and Use2.1 This test method covers a procedure to determine themaximum functional wet volume that the utility vac is capableof collecting.3.Apparatus3.1 Voltmeter,to me
5、asure input 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 frequency(61 Hz)with sinusoidal wave form.3.3 Temperature and Relative Humidity Indicators,to pro-vide temperature measurements
6、 accurate to within 61F(612C)and humidity measurements accurate to within 62%relative 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%conf
7、idence level(about the mean)is established within 65%of the mean value.Test a minimum of three samples.Select allsamples at random in accordance with good statistical practice.NOTE1See Appendix X1 for method of determining 90%confidencelevel.6.Conditioning6.1 Test RoomThe test room should be maintai
8、ned 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
9、 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 voltage(61%)and frequency(61 Hz),when measured at theappliance plug.For cleaners with dual nameplate voltageratings,condu
10、ct 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 occurs:7.7.1 The unit stops collecting water,or7.7.2
11、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 co
12、llected by the weight per gallon ofwater as follows:1This test method is under the jurisdiction ofASTM Committee F11 on VacuumCleaners and is the direct responsibility of Subcommittee F11.23 on Filtration.Current edition approved Nov.1,2011.Published March 2012.Originallyapproved in 1992.Last previo
13、us edition approved in 2006 as F1410 98(2006).DOI:10.1520/F1410-98R11.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 volume,gal5weightlb!vac filled2 weightlb!vac empty8.328lb/gal7.11 Record the maximum functional wet volume in gallons(li
14、tres)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
15、 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-day):8.1.1.1 Repeatability for wet volume values of 5 gal andunder,within a laboratory divided by the average(coefficientof variation)was found
16、 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%.NOTE2The 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
