ASTM_F_1326_-_02_2016.pdf

Designation:F132602(Reapproved 2016)An American National StandardStandard Test Method forMeasuring Maximum Dry Volume of Utility VacuumCleaners1This standard is issued under the fixed designation F1326;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 method 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 in parentheses are for information 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.Referenced Documents2.1 ASTM Standards:2E177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Significance and Use3.1 This test method describes a procedure to determine themaximum functional dry volume that the utility vac is capableof collecting.4.Apparatus4.1 Temperature and humidity indicators,to provide tem-perature measurements accurate to within 61F(612C)andhumidity measurements accurate to within 62%relativehumidity.4.2 Weighing Scale,the scale shall be accurate to 4 oz(114g)and have a weighing capacity of at least 120 lb(54.4 kg).5.Materials5.1 Water.6.Sampling6.1 A minimum of three units of the same model vacuumcleaner selected at random in accordance with good statisticalpractice shall constitute the population sample.6.1.1 To determine the best estimate of maximum dryvolume for the population of the vacuum cleaner model beingtested,the arithmetic mean of the maximum dry volume of thesample from the population shall be established by testing it toa 90%confidence level within 65%of the mean value of themaximum dry volume.6.1.2 Annex A1 provides a procedural example for deter-mining the 90%confidence level and when the sample sizeshall be increased.NOTE1See Annex A1 for a method for determining 90%confidencelevel.7.Conditioning7.1 Test RoomThe test room should be maintained at 70F6 5F(21C 6 3C)and 45 to 55%relative humidity.7.2 Condition the water in accordance with 7.1.8.Procedure8.1 Dry Pick Up Capacity:8.1.1 Calculate the volume in gallons of the dust drum usingthe appropriate formulas,neglecting all projections into thedrum.8.1.2 Calculate all projections into the drum using theappropriate formulas in gallons.8.1.3 Subtract the total projection volumes from the dirtdrum volume to arrive at the maximum dry volume.Rounddown to the nearest14gal(0.936 L).8.1.4 Record the maximum functional volume in gallons(litres)within14gal(0.936 L).9.Procedure9.1 Dry Pick Up Capacity(Alternative Method):9.1.1 An alternative method is allowed when the shape ofthe vacuum cleaner is irregular,and the calculations of Section8 become complex.9.1.1.1 Block the inlet of the dust drum and fill it with water.9.1.1.2 Line the projections into the drum with an appropri-ate water-proof material and submerse into the dust drum.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 April 1,2016.Published April 2016.Originallyapproved in 1991.Last previous edition approved in 2011 as F1326 02(2011).DOI:10.1520/F1326-02R16.2For referenced 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 9.1.1.3 Allow the excess water to flow out of the dust drumand then measure the volume of the water remaining in the dustdrum.Round down to the nearest14gal.9.1.1.4 Record the maximum functional volume in gallons(litres)within14gal(0.936 L).9.1.1.5 Repeat steps 9.1.1 9.1.1.4 two more times.Theaverage of the three tests represents the maximum dry func-tional volume that the utility vacuum is capable of collecting.10.Precision and Bias310.1 PrecisionThese precision statements are based on aninterlaboratory test involving six(6)laboratories and four(4)units.The range of maximum functional volume of the unitswas from 4.8 to 14.6 gal.10.2 The statistics have been calculated as recommended inPractice E691.10.3 The following statements regarding repeatability limitand reproducibility limit are used as directed in Practice E177.10.4 Repeatability(Single-Operator-and Laboratory;Multi-Day Testing)The ability of a single analyst to repeatthe test within a single lab