1、Designation:D284715Standard Practice forTesting Engine Coolants in Car and Light Truck Service1This standard is issued under the fixed designation D2847;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A numb
2、er in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers an updated procedure for evaluat-ing corrosion protection and performance of an engine coolantin passenger car,light and h
3、eavy duty truck service that closelyimitates current vehicle and engine manufacturers practices.NOTE1Coolant evaluation in vehicle service may require consider-able time and expense;therefore,the product should be pretested in thelaboratory for general acceptability.Typical tests vary from small,clo
4、selycontrolled tests,to large tests where close control is not always practical.The most often referenced protocols for laboratory testing are defined inSpecifications D3306,D6210,D7517,D7518,D7714,and D7715.1.2 The units quoted in this practice are to be regarded asstandard.The values given in pare
5、ntheses are approximateequivalents 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 o
6、f regulatory limitations prior to use.Specific precau-tionary statements are given in Section 7.2.Referenced Documents2.1 ASTM Standards:2D1121 Test Method for Reserve Alkalinity of Engine Cool-ants and AntirustsD1287 Test Method for pH of Engine Coolants andAntirustsD2809 Test Method for Cavitation
7、 Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With En-gine CoolantsD3306 Specification for Glycol Base Engine Coolant forAutomobile and Light-Duty ServiceD3321 Test Method for Use of the Refractometer for FieldTest Determination of the Freezing Point of AqueousEngine CoolantsD47
8、25 Terminology for Engine Coolants and Related FluidsD5827 Test Method for Analysis of Engine Coolant forChloride and Other Anions by Ion ChromatographyD6130 Test Method for Determination of Silicon and OtherElements in Engine Coolant by Inductively CoupledPlasma-Atomic Emission SpectroscopyD6210 Sp
9、ecification for Fully-Formulated Glycol Base En-gine Coolant for Heavy-Duty EnginesD7517 Specification for Fully-Formulated 1,3 Propanediol(PDO)Base Engine Coolant for Heavy-Duty EnginesD7518 Specification for 1,3 Propanediol(PDO)Base EngineCoolant for Automobile and Light-Duty ServiceD7714 Specific
10、ation for Glycerin Base Engine Coolant forAutomobile and Light-Duty ServiceD7715 Specification for Fully-Formulated Glycerin BaseEngine Coolant for Heavy-Duty Engines3.Terminology3.1 DefinitionsRefer to Terminology D4725.4.Summary of Practice4.1 Test coolant shall be a new coolant.The coolant is tes
11、tedat the recommended concentration in an aqueous solution madewith water that complies with the water recommendationpublished in Specifications D3306 and D6210.A minimum offivetestvehiclespercoolantarerequired,tenarerecommended,but this number may be adjusted by agreementbetween customer and suppli
12、er.The test vehicles shall havebeen in service less than 3 months,3000 miles,5000 km,or500 operating hours.Alternate specific requirements mayalways be agreed between customer and supplier.Customerand supplier may also choose to follow requirements publishedin Original Engine Manufacturer(OEM)specif
13、ications.Thecooling system components and coolant are inspected accord-ing to a prescribed schedule to provide the basis for coolantperformance evaluation.4.2 A detailed cleaning and conditioning procedure is es-sential to obtain statistically significant and reproducible re-sults.5.Significance and
14、 Use5.1 The data obtained from the use of this practice willprovide a basis for the evaluation of coolant performance in1This practice is under the jurisdiction of ASTM Committee D15 on EngineCoolants and Related Fluids and is the direct responsibility of SubcommitteeD15.10 on Dynamometer and Road T
15、ests.Current edition approved May 1,2015.Published June 2015.Originallyapproved in 1969.Last previous edition approved in 2014 as D2847 14.DOI:10.1520/D2847-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of AST
16、MStandards 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 passenger car.light and heavy duty truck service(according tothe test vehicles chosen).The data obtained may also be usedto provide added significance to the data obtained fromsimulated service and engine dynamometer tests.6.Apparatus6.1 Test VehiclesIn selecting vehicles,refer to OEMrecommendat
