1、Designation:D 6211 98aStandard Specification forFully-Formulated Propylene Glycol-Base Engine Coolant forHeavy-Duty Engines1This standard is issued under the fixed designation D 6211;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(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the requirements for a fully-formulated propylene glycol-base coolant for cooling syst
3、emsof heavy-duty engines.When concentrates are used at 40 to60%propylene-glycol concentration by volume in water ofsuitable quality(see Appendix X1),or when prediluted aque-ous propylene-glycol-base engine coolants(50 volume%minimum)are used without further dilution,it will functioneffectively durin
4、g both winter and summer to provide protec-tion against corrosion,cavitation,freezing,and boiling.1.2 This specification is intended to cover the requirementsfor engine coolants prepared from virgin or recycled propyleneglycol.1.3 Both concentrated and prediluted products are coveredby this specific
5、ation.1.4 Coolant concentrates meeting this specification do notrequire any addition of supplemental coolant additive(SCA)until the first maintenance interval when a maintenance dose ofSCA is required to continue protection in certain heavy dutyengine cooling systems,particularly those of the wet cy
6、linderliner-in-block design.The SCA additions are defined by andare the primary responsibility of the engine manufacturer orvehicle manufacturer.If they provide no instructions,followthe SCA suppliers instructions.1.5 This specification does not cover extended serviceinterval coolants.1.6 The values
7、 stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.7 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 h
8、ealth practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:D 1126 Test Method for Hardness in Water2D 1293 Test Methods for pH of Water2D 4327 Test Method for Anions in Water by Chemically-Suppressed Ion Chromatography2D 5216 Spec
9、ification for Propylene-Glycol-Base EngineCoolant for Automobile and Light Duty Service3D 5828 Test Method for Compatibility of SupplementalAdditives(SCAs)and Engine Coolant Concentrates3D 6257 Specification for Prediluted Aqueous Propylene-Glycol Base Engine Coolant(50 Volume%Minimum)forAutomobile
10、and Light-Duty Service33.General Requirements3.1 Concentrated coolant shall meet all of the requirementsof Specification D 5216.Prediluted coolant shall meet all therequirements of Specification D 6257.3.2 The coolant concentrate mixed with water or the predi-luted coolant,when maintained with maint
11、enance doses ofSCAin accordance with the engine manufacturers recommen-dations,shall be suitable for use in a properly maintainedcooling system in normal service for a minimum of one year(see Appendix X1).4.Additional Requirements4.1 The coolant concentrate additionally shall provide pro-tection in
12、operating engines against cavitation corrosion,alsotermed liner pitting,and against scaling of internal engine hotsurfaces.Hot surfaces typically are within the engine head,head spacer,or liquid cooled exhaust manifold.ASTM has testmethods under development for both cavitation corrosion andhot surfa
13、ce scaling.Until these procedures are approved asASTM Standards,the mandatory requirements of Annex A1shall apply.4.2 Both the concentrated and prediluted coolants shallcontain less than 50 ppm sulfate ion.4.3 Concentrated coolant must contain less than 4%totaldissolved solids as measured using Modi
14、fied Federal Method1This specification is under the jurisdiction ofASTM Committee D15 on EngineCoolants and is the direct responsibility of Subcommittee D15.07 on Specifications.Current edition approved April 10,1998.Published December 1998.Lastprevious edition D 6211-982Annual Book of ASTM Standard
15、s,Vol 11.01.3Annual Book of ASTM Standards,Vol 15.05.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.2540C.4Prediluted coolant must contain less than 2%totaldissolved solids using the same method.5.Keywords5.1 cavitation;fully-formulated
16、heavy-duty engine coolant;supplemental coolant additive maintenance doseANNEX(Mandatory Information)A1.CHEMICAL REQUIREMENTS FOR FULLY FORMULATED HEAVY DUTY ENGINE COOLANTA1.1 Laboratory data or in-service experience demonstrat-ing a positive influence on reducing cavitation corrosion in anoperating engine is required.A1.1.1 In-service qualification tests may consist of single-or multiple-cylinder engine tests.At the option of the engine orvehicle manufacturer,such testing may be conducted in“lo
