ASTM_D_3705_-_14.pdf

Designation:D370514Standard Test Method forMisting Properties of Lubricating Fluids1This standard is issued under the fixed designation D3705;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.Scope*1.1 This test method covers the determination of the mistingcharacteristics of lubricating fluids.NOTE1This test method should not be used to evaluate fluidscontaining solid additives such as graphite.1.2 The values stated in SI units are to be regarded asstandard.1.2.1 Inch-pound units are used to describe the various tubefittings shown in Fig.1.1.2.2 Inch-pound thread is shown in Fig.2.1.3 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.For specificwarning statements,see Sections 7 and 8.2.Referenced Documents2.1 ASTM Standards:2D91 Test Method for Precipitation Number of LubricatingOilsD235 Specification for Mineral Spirits(Petroleum Spirits)(Hydrocarbon Dry Cleaning Solvent)D4175 Terminology Relating to Petroleum,PetroleumProducts,and Lubricants3.Terminology3.1 For definitions of terms used in this test method,refer toTerminology D4175.3.2 Definitions of Terms Specific to This Standard:3.2.1 line condensate,nin a mist lubrication system,oilmist which has coalesced in the distribution lines and is notavailable for lubrication purposes.3.2.2 reclassified oil,nin a mist lubrication system,lubri-cant that has coalesced into larger droplets at the points ofrequired lubrication.3.2.2.1 DiscussionMist lubrication systems are designedso that the oil mist will coalesce in the appropriate area andprovide lubrication in the right place.4.Summary of Test Method4.1 The mist generator is charged with oil and installed inthe mist system.The unit is operated for 19 h;the mistgenerator,line condensate bottles,and reclassified oil collectorare weighed before and after the test.The output from thegenerator and percentages of reclassified oil,line condensate,and stray mist are determined from changes in weight.NOTE2Line condensate is the commonly accepted term used todescribe the oil that coalesces in the mist distribution lines.In this test,theoil that coalesces in the 38 mm(112in.)tubing and the diagonal 19 mm(34in.)tubing is collected and weighed as line condensate.Oil thatcoalesces in the vertical 19 mm(34in.)tubing becomes part of thereclassified oil.5.Significance and Use5.1 This test provides a guide for evaluating the mistingcharacteristics of oils for use in industrial mist lubricationsystems.The degree of correlation between this test and serviceperformance has not been fully determined.6.Apparatus6.1 The basic system consists of the following:6.1.1 Oil Mist Generator,Alemite No.383802-B43,4(Fig.1,item 23)with specialASTM-ASLE mist head 383803B4(Fig.1,item 22).The oil mist generator is attached to the manifoldso that it may be easily disconnected in order to determine itsmass before and after the test.6.1.2 Air Temperature Regulator,Alemite thermo-aire No.383808A44,5(Fig.1,item 24).1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.L0.01 on Metal Removal Fluids and Lubricants.Current edition approved Oct.1,2014.Published November 2014.Originallyapproved in 1978.Last previous edition approved in 2009 as D3705 86(2009).DOI:10.1520/D3705-14.2For 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.3The sole source of supply of known to the committee at this time is AlemiteCo.,Stewart Warner,1826 West Diversey Parkway,Chicago,IL 60614.4If you are aware of alternative suppliers,please provide this information toASTM International Headquarters.Your comments will receive careful consider-ation at a meeting of the responsible technical committee1,which you may attend.5The sole source of supply of Alemite thermo-aire unit No.383808-A4 knownto the committee at this time is Alemite Co.,Stewart Warner,1826 West DiverseyParkway,Chicago,IL 60614.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1(1)112C 112in.MPT union(19)Air flow meter(L/s)(2)112in.copper tubing,3 in.long(20)Pressure gage,7 kPa(3)112in.C C Return bend(21)Air filter(4)112in.C Union(22)Oil mist head assembly with adjusting screw(5)11234 112in.C C C tee(23)Oil mist generator(6)112in.C 45 deg ftg