1、Designation:D771512(Reapproved 2021)Standard Specification forFully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines1This standard is issued under the fixed designation D7715;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revis
2、ion,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.Scope1.1 This specification covers the requirements for fully-formulated glycerin base coolants for cooling systems
3、ofheavy-duty engines.When concentrates are used at 40%to60%glycerin concentration by volume in water of suitablequality(see Appendix X1),or when prediluted glycerin baseengine coolants(50 volume%min)are used without furtherdilution,they will function effectively during both winter andsummer to provi
4、de protection against corrosion,cavitation,freezing,and boiling.1.2 This specification is intended to cover the requirementsfor engine coolants prepared from virgin glycerin.NOTE1This specification is based on the knowledge of the perfor-mance of engine coolants prepared from new or virgin ingredien
5、ts thatcomply with Specification D7714.1.3 The coolants governed by this specification are catego-rized as follows:Coolant TypeDescriptionV-FFGlycerin base concentrateVI-FFGlycerin predilute(50 vol%)1.4 Coolant concentrates meeting this specification do notrequire addition of supplemental coolant ad
6、ditive(SCA)untilthe first maintenance interval when a maintenance dose of SCAis required to continue protection in certain heavy duty enginecooling systems,particularly those of the wet cylinder liner-in-block design.The SCA additions are defined by and are theprimary responsibility of the engine ma
7、nufacturer or vehiclemanufacturer.If they provide no instructions,follow the SCAsuppliers instructions.1.5 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.1.6 This standard doe
8、s 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.1.7 This international st
9、andard 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 the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Ref
10、erenced Documents2.1 ASTM Standards:2D1126 Test Method for Hardness in WaterD1293 Test Methods for pH of WaterD3306 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 Aqu
11、eousEngine CoolantsD4327 Test Method for Anions in Water by Suppressed IonChromatographyD4725 Terminology for Engine Coolants and Related FluidsD5828 Test Method for Compatibility of SupplementalCoolant Additives(SCAs)and Engine Coolant Concen-tratesD6130 Test Method for Determination of Silicon and
12、 OtherElements in Engine Coolant by Inductively CoupledPlasma-Atomic Emission SpectroscopyD7583 Test Method for John Deere Coolant Cavitation TestD7714 Specification for Glycerin Base Engine Coolant forAutomobile and Light-Duty ServiceE29 Practice for Using Significant Digits in Test Data toDetermin
13、e Conformance with Specifications2.2 Other Standards:3Federal Method 2540B Total Dissolved Solids Dried at103-105C1This specification is under the jurisdiction ofASTM Committee D15 on EngineCoolants and Related Fluids and is the direct responsibility of SubcommitteeD15.07 on Specifications.Current e
14、dition approved Sept.1,2021.Published September 2021.Originallyapproved in 2011.Last previous edition approved in 2016 as D7715 12(2016)1.DOI:10.1520/D7715-12R21.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of A
15、STMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Standard Method for the Examination of Water and Wastewater,AmericanPublic Health Association,et al,801 I Street,NW,Washington,DC 20001,http:/www.apha.org.Copyright ASTM International,100 Barr Harbor Dri
16、ve,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance 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.13.Terminology3.1 Definitions:3.1.1 glycerin base engine coolant,nengine coolant inwhich the freeze point depressant is 1,2,3