1、Designation:D138405(Reapproved 2019)Standard Test Method forCorrosion Test for Engine Coolants in Glassware1This standard is issued under the fixed designation D1384;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last re
2、vision.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 simple beaker-type procedurefor evaluating the effects of engine coolants on metal speci-mens under cont
3、rolled laboratory conditions(see AppendixX1).NOTE1For more information on engine coolants,see(Refs 1-8).21.2 The values stated in SI units are to be regarded asstandard.The values given in parentheses after SI units areprovided for information only and are not considered standard.1.3 This standard d
4、oes 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.Specific hazards statem
5、ents are given in 10.1.7.2,10.1.7.3,and10.1.7.4.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by th
6、e World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3B32 Specification for Solder MetalB36/B36M Specification for Brass Plate,Sheet,Strip,AndRolled BarD1176 Practice for Sampling and Preparing Aqueous Solu-tions of Engine Coolants orAntirusts
7、for Testing PurposesE1 Specification for ASTM Liquid-in-Glass ThermometersE178 Practice for Dealing With Outlying ObservationsE230 Specification for Temperature-Electromotive Force(emf)Tables for Standardized ThermocouplesG31 Guide for Laboratory Immersion Corrosion Testing ofMetals2.2 ASTM Adjuncts
8、:All-glass apparatus for corrosion test(2 drawings)43.Summary of Test Method3.1 In this test method,specimens of metals typical of thosepresent in engine cooling systems are totally immersed inaerated engine coolant solutions for 336 h at 88 C(190 F).The corrosion-inhibitive properties of the test s
9、olution areevaluated on the basis of the weight changes incurred by thespecimens.Each test is run in triplicate,and the average weightchange is determined for each metal.A single test mayoccasionally be completely out of line(see 11.2).4.Significance and Use4.1 This test method will generally distin
10、guish betweencoolants that are definitely deleterious from the corrosionstandpoint and those that are suitable for further evaluation.However,the results of this test method cannot stand alone asevidence of satisfactory corrosion inhibition.The actual ser-vice value of an engine coolant formulation
11、can be determinedonly by more comprehensive bench,dynamometer,and fieldtests.5.Apparatus5.1 ContainerA 1000 mL,tall-form,spoutless beaker,made of heat-resistant glass,for containing the engine coolantsolution and test specimens.The beaker shall be tightly closedwith a No.15 rubber stopper,having dri
12、ll holes to accommo-date a water condenser,an aerator tube,and a thermometer asshown in Fig.1.Optionally,an all-glass apparatus may beused.45.2 CondenserA water condenser of the reflux,glass-tubetype,having a 400 mm(16 in.)condenser jacket.1This test method is under the jurisdiction of ASTM Committe
13、e D15 on EngineCoolants and Related Fluids and is the direct responsibility of SubcommitteeD15.06 on Glassware Performance Tests.Current edition approved Oct.1,2019.Published October 2019.Originallyapproved in 1955.Last previous edition approved in 2012 as D138405(2012).DOI:10.1520/D138405R19.2The b
14、oldface numbers in parentheses refer to the list of references at the end ofthis standard.3For 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
15、page onthe ASTM website.4Details available from:ASTM International Headquarters.Order Adjunct No.ADJD1384.Original adjunct produced in(1980).Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accord
16、ance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 5.3 Aerator TubeA gas-dispersion tube,porosity size12-C,5to ensure continuous aeration without plugging.5.4 Temperature Measuring Instrument(EnvironmentallySafe Thermometer or Thermocouple)An ASTM Partial Im-mersion Temperature Measuri