1、Designation:D751810(Reapproved 2015)1Standard Specification for1,3 Propanediol(PDO)Base Engine Coolant for Automobileand Light-Duty Service1This standard is issued under the fixed designation D7518;the number immediately following the designation indicates the year oforiginal adoption or,in the case
2、 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.1NOTECaution statement in X1.5 was changed to a Warning statement editorially in June 2015.1.Scope*1.1 This s
3、pecification covers the requirements for 1,3 pro-panediol base engine coolants used in automobiles or otherlight-duty service cooling systems.When concentrates are usedat 40 to 70%concentration by volume in water,or whenprediluted glycol base engine coolants(50 volume%mini-mum)are used without furth
4、er dilution,they will functioneffectively to provide protection against freezing,boiling,andcorrosion.1.2 The coolants governed by this specification are catego-rized as follows:Coolant TypeDescriptionI1,3 Propanediol base concentrateII1,3 Propanediol predilute(50 vol%)NOTE1This specification is bas
5、ed on the knowledge of the perfor-mance of engine coolants prepared from new or virgin ingredients.NOTE2This specification applies to automobiles and light-dutyservice.A specification for heavy-duty engine service is under develop-ment.1.3 The values stated in SI units are to be regarded as thestand
6、ard.The values given in parentheses are for informationonly.1.4 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-bili
7、ty of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D512 Test Methods for Chloride Ion In WaterD516 Test Method for Sulfate Ion in WaterD1119 Test Method for Percent Ash Content of EngineCoolantsD1120 Test Method for Boiling Point of Engine CoolantsD1121 Test Method f
8、or Reserve Alkalinity of Engine Cool-ants and AntirustsD1122 Test Method for Density or Relative Density ofEngine Coolant Concentrates and Engine Coolants By TheHydrometerD1123 Test Methods for Water in Engine Coolant Concen-trate by the Karl Fischer Reagent MethodD1126 Test Method for Hardness in W
9、aterD1177 Test Method for Freezing Point of Aqueous EngineCoolantsD1287 Test Method for pH of Engine Coolants andAntirustsD1293 Test Methods for pH of WaterD1384 Test Method for Corrosion Test for Engine Coolantsin GlasswareD1881 Test Method for Foaming Tendencies of EngineCoolants in GlasswareD1882
10、 Test Method for Effect of Cooling System ChemicalSolutions on Organic Finishes for Automotive VehiclesD2570 Test Method for Simulated Service Corrosion Testingof Engine CoolantsD2809 Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With En-gine CoolantsD3
11、321 Test Method for Use of the Refractometer for FieldTest Determination of the Freezing Point of AqueousEngine CoolantsD3634 Test Method for Trace Chloride Ion in Engine Cool-antsD4327 Test Method for Anions in Water by Suppressed IonChromatographyD4340 Test Method for Corrosion of Cast Aluminum Al
12、loysin Engine Coolants Under Heat-Rejecting ConditionsD4725 Terminology for Engine Coolants and Related FluidsD5827 Test Method for Analysis of Engine Coolant forChloride and Other Anions by Ion Chromatography1This specification is under the jurisdiction ofASTM Committee D15 on EngineCoolants and Re
13、lated Fluids and is the direct responsibility of SubcommitteeD15.07 on Specifications.Current edition approved May 1,2015.Published June 2015.Originallyapproved in 2009.Last previous edition approved in 2010 as D7518 10.DOI:10.1520/D7518-10R15E01.2For referenced ASTM standards,visit the ASTM website
14、,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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO
15、Box C700,West Conshohocken,PA 19428-2959.United States1 D5931 Test Method for Density and Relative Density ofEngine Coolant Concentrates and Aqueous Engine Cool-ants by Digital Density MeterD6130 Test Method for Determination of Silicon and OtherElements in Engine Coolant by Inductively CoupledPlasm
16、a-Atomic Emission SpectroscopyD6660 Test Method for Freezing Point of Aqueous EthyleneGlycol Base Engine Coolants by Automatic Phase Tran-sition MethodD7388 Specification for Engine Coolant Grade 1,3-Propanediol(PDO)E29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE394 Test Method for Iron in Trace Quantities Using the1,10-Phenanthroline Method2.2 Other Document:3Federal Method 2540B Total Dissolved Solids Dried at103105C3.Terminology3.1 Definitio