1、Designation:D360708(Reapproved 2012)Standard Test Method forRemoving Volatile Contaminants from Used Engine Oils byStripping1This standard is issued under the fixed designation D3607;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,th
2、e 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 covers a standardized procedure forremoving volatile materials such as gasoline and water fromus
3、ed engine oils prior to further oil analysis.1.2 It also provides an estimate of such volatiles in usedengine oils.1.3 When an accurate value of the gasoline contaminant isrequired either Test Methods D322 or D3525 shall be used.NOTE1Test Method D322 determines the amount of gasoline bydistillation
4、with water.Test Method D3525 determines the amount ofmaterial boiling below the boiling point of ntetradecane by gas chroma-tography.NOTE2When the amount of gasoline is required to be known,the userof this test method is advised to determine which method is to be used.There are cases where D3525 may
5、 be set as the referee method.1.4 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.5 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 sta
6、ndard to consult andestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.For specific warnings,see 6.1 and 8.5.2.Referenced Documents2.1 ASTM Standards:2D322 Test Method for Gasoline Diluent in Used GasolineEngine Oils by Distillat
7、ionD445 Test Method for Kinematic Viscosity of Transparentand Opaque Liquids(and Calculation of Dynamic Viscos-ity)D3525 Test Method for Gasoline Diluent in Used GasolineEngine Oils by Gas ChromatographyD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4177 Practice for Automatic
8、 Sampling of Petroleum andPetroleum Products3.Terminology3.1 Definitions:3.1.1 stripping,nthe process whereby volatile fractionsare removed from a liquid material.3.1.1.1 DiscussionIn this test method,lighter componentssuch as water and gasoline are removed by the application ofheat while passing an
9、 inert gas through the liquid.3.1.2 used oil,nany oil that has been in a piece ofequipment(for example,an engine,gearbox,transformer,orturbine)whether operated or not.3.1.2.1 DiscussionThis test method refers specifically toused lubricating oils from gasoline engines.4.Summary of Test Method4.1 A kn
10、own weight of sample is heated to 90C under anitrogen flow for 4.5 h,cooled,and reweighed.5.Significance and Use5.1 The removal of volatile materials such as gasolinedilution from used engine oils is especially important if themechanical shear stability or oxidative stability of the oil isbeing moni
11、tored by measuring a kinematic viscosity change inthe oil after it has been used in a gasoline engine.6.Apparatus6.1 NitrogenCylinder,equippedwithregulator.(WarningUsing pressurized gas is hazardous.)6.2 Rotameters or Nitrogen Flowmeters3,one or more,eachcapable of supplying 400 cm3/min of nitrogen
12、at atmosphericpressure.1This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products,Liquid Fuels,and Lubricants and is the direct responsibility ofSubcommittee D02.06 on Analysis of Liquid Fuels and Lubricants.Current edition approved Nov.1,2012.Published November 2012.Orig
13、inallyapproved in 1977.Last previous edition approved in 2008 as D360708.DOI:10.1520/D3607-08R12.2For 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 S
14、ummary page onthe ASTM website.3The sole source of supply of the apparatus known to the committee at this timeis Brooks Instrument Co.,Inc.,Hatfield,PA 19440,as Sho-Rate 50,Model 1350.Ifyou are aware of alternative suppliers,please provide this information to ASTMInternational Headquarters.Your comm
15、ents will receive careful consideration at ameeting of the responsible technical committee,1which you may attend.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 NOTE3If several rotameters are available,it is preferable to controlthe nitro
16、gen flow with an individual rotameter to each tube.Consistentflow rates can be maintained to several tubes by one rotameter if thenitrogen pressure is controlled in a common manifold to all tubes.6.3 Connecting Tubing,of 4.8-mm(316in.)inside diameterand 7.9-mm(516in.)outside diameter is a convenient size.NOTE4No tolerances for the dimensions of the I.D.and O.D.of thetubing are given because these are nominal sizes.6.4 Sample Tubes or Test Tubes,glass,25 by 150-mm.Asmany as eight tubes can usuall
