1、Designation: D 3306 08aStandard Specification forGlycol Base Engine Coolant for Automobile and Light-DutyService1This standard is issued under the fixed designation D 3306; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year o
2、f 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 ethyleneglycol or propylene glycol base engine coolants used inautomo
3、biles or other light duty service cooling systems. Whenconcentrates are used at 40 to 70 % concentration by volume inwater, or when prediluted glycol base engine coolants (50volume % minimum) are used without further dilution, theywill function effectively to provide protection against freezing,boil
4、ing, and corrosion.1.2 The coolants governed by this specification are catego-rized as follows:Coolant Type DescriptionI Ethylene glycol base concentrateII Propylene glycol base concentrateIII Ethylene glycol predilute (50 vol %)IV Propylene glycol predilute (50 vol %)NOTE 1This specification is bas
5、ed on the knowledge of the perfor-mance of engine coolants prepared from new or virgin ingredients. Thisspecification shall also apply to engine coolants prepared using glycolgenerated from recycled or reprocessed used coolant or reprocessedindustrial-source glycol, provided that said glycol meets t
6、he requirementsof Specification E 1177. Separate specifications (D 6471 and D 6472)exist for engine coolants prepared from recycled or reprocessed usedcoolant or reprocessed industrial-source glycol that does not meet therequirements established in Specification E 1177.1.3 The values stated in SI un
7、its are to be regarded as thestandard. The values in parentheses are for information only.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 practic
8、es and determine the applica-bility of regulatory limitations prior to use.NOTE 2This specification applies to automobiles and light dutyservice. Specifications D 4985 and D 6210 exist for heavy duty engineservice.2. Referenced Documents2.1 ASTM Standards:2D 512 Test Methods for Chloride Ion In Wate
9、rD 516 Test Method for Sulfate Ion in WaterD 1119 Test Method for Percent Ash Content of EngineCoolantsD 1120 Test Method for Boiling Point of Engine CoolantsD 1121 Test Method for Reserve Alkalinity of EngineCoolants and AntirustsD 1122 Test Method for Density or Relative Density ofEngine Coolant C
10、oncentrates and Engine Coolants By TheHydrometerD 1123 Test Methods for Water in Engine Coolant Concen-trate by the Karl Fischer Reagent MethodD 1126 Test Method for Hardness in WaterD 1177 Test Method for Freezing Point of Aqueous EngineCoolantsD 1287 Test Method for pH of Engine Coolants and Anti-
11、rustsD 1293 Test Methods for pH of WaterD 1384 Test Method for Corrosion Test for Engine Coolantsin GlasswareD 1881 Test Method for Foaming Tendencies of EngineCoolants in GlasswareD 1882 Test Method for Effect of Cooling System ChemicalSolutions on Organic Finishes for Automotive VehiclesD 1888 Met
12、hods of Test for Particulate and DissolvedMatter in Water31This specification is under the jurisdiction ofASTM Committee D15 on EngineCoolants and is the direct responsibility of Subcommittee D15.07 on Specifications.Current edition approved May 15, 2008. Published June 2008. Originallyapproved in 1
13、974. Last previous edition approved in 2008 as D 3306 08.2For 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 page onthe ASTM website.3Wit
14、hdrawn.TABLE 1 General RequirementsProperty Specified Values ASTM Test MethodColor Distinctive . . .Effect on nonmetals No adverse effect under consideration1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TABLE 2 Physical and Chemica
15、l RequirementsProperty Type I Type II Type III Type IV ASTM Test MethodRelative density15.5/15.5C (60/60F)1.110 to 1.145 1.030 to 1.065 1.065 min 1.025 min D 1122, D 5931Freezing point, C (F): D 1177, D 666050 vol % in DI water 37 (34) max 31 (24) maxUndiluted 37 (34) max 31 (24) maxBoiling point,AC
16、 (F): D 112050 vol % in DI water 108 (226) min 104 (219) minUndiluted 163 (325) min 152 (305 min) 108 (226) min 104 (219) minAsh content, mass % 5 max 5 max 2.5 max 2.5 max D 1119pH: D 128750 vol % in DI water 7.5 to 11 7.5 to 11Undiluted 7.5to11 7.5to11Chloride, ppm 25 max 25 max 25 max 25 max D 36
17、34, D 5827BWater, mass % 5 max 5 max not applicable not applicable D 1123Reserve alkalinity, mL reportCreportCreportCreportCD 1121Effect on automotive finish (use clearcoat thermoset urethane or acrylicurethane finish)no effect no effect no effect no effect D 1882DASome precipitate may be observed a
18、t the end of the test. This should not be cause for rejection.BIn case of dispute, D 3634 shall be the preferred test method.CValue as agreed upon between the supplier and the customer.DCurrently, many vehicle manufacturers prepare test panels using the specific paint finishes employed on their actu
19、al products. Coolant suppliers and vehiclemanufacturers should agree on the exact test procedures and acceptance criteria on an individual basis.TABLE 3 Performance RequirementsAProperty Specific Values ASTM Test MethodTest Solution Concentration,vol % GlycolCorrosion in glassware D 1384B33Weight lo
20、ss, mg/specimencopper 10 maxsolder 30 maxbrass 10 maxsteel 10 maxcast iron 10 maxaluminum 30 maxSimulated service test D 2570C44Weight loss, mg/specimencopper 20 maxsolder 60 maxbrass 20 maxsteel 20 maxcast iron 20 maxaluminum 60 maxCorrosion of Cast Aluminum Alloys atHeat-Rejecting Surfaces, mg/cm2
21、/week 1.0 max D 4340D25Foaming D 1881E33Volume, mL 150 maxBreak time, s 5 maxCavitation-Erosion 8 min D 2809F17Rating for pitting, cavitation, and erosion of thewater pumpAFor engine coolant concentrates, test solutions shall be prepared in accordance with the directions provided in the individualAS
22、TM test methods noted. For predilutedengine coolants, prepare test solutions using the directions provided in Footnotes B through F.BFor prediluted coolants, prepare the test solution by mixing 67 volume % of the adjusted (see 4.6) prediluted product with 33 volume % ASTM Type IV reagent water.Add 9
23、9 mg of sodium sulfate, 110 mg of sodium chloride, and 92 mg of sodium bicarbonate per litre of test solution.CFor prediluted coolants, prepare the test solution by mixing 88 volume % of the adjusted (see 4.6) prediluted product with 12 volume % ASTM Type IV reagent water.Add 83 mg of sodium sulfate
24、, 92 mg of sodium chloride, and 77 mg of sodium bicarbonate per litre of test solution.DFor prediluted coolants, prepare the test solution by mixing 50 volume % of the adjusted (see 4.6) prediluted product with 50 volume % ASTM Type IV reagent water.Add 165 mg of sodium chloride per litre of test so
25、lution.EFor prediluted coolants, prepare the test solution by mixing 67 volume % of the adjusted (see 4.6) prediluted product with 33 volume % ASTM Type II reagent water.FFor prediluted coolants, prepare the test solution by mixing 33 volume % of the adjusted (see 4.6) prediluted product with 67 vol
26、ume % ASTM Type IV reagent water.Add 123 mg of sodium sulfate, 137 mg of sodium chloride, and 115 mg of sodium bicarbonate per litre of test solution.D 3306 08a2D 2570 Test Method for Simulated Service Corrosion Test-ing of Engine CoolantsD 2809 Test Method for Cavitation Corrosion and Erosion-Corro
27、sion Characteristics of Aluminum Pumps With En-gine CoolantsD 3321 Test Method for Use of the Refractometer for FieldTest Determination of the Freezing Point of AqueousEngine CoolantsD 3634 Test Method for Trace Chloride Ion in EngineCoolantsD 4327 Test Method for Anions in Water by ChemicallySuppre
28、ssed Ion ChromatographyD 4340 Test Method for Corrosion of Cast AluminumAlloys in Engine Coolants Under Heat-Rejecting Condi-tionsD 4985 Specification for Low Silicate Ethylene GlycolBase Engine Coolant for Heavy Duty Engines Requiring aPre-Charge of Supplemental Coolant Additive (SCA)D 5827 Test Me
29、thod for Analysis of Engine Coolant forChloride and Other Anions by Ion ChromatographyD 5931 Test Method for Density and Relative Density ofEngine Coolant Concentrates and Aqueous Engine Cool-ants by Digital Density MeterD 6210 Specification for Fully-Formulated Glycol BaseEngine Coolant for Heavy-D
30、uty EnginesD 6471 Specification for Recycled PredilutedAqueous Gly-col Base Engine Coolant (50 Volume % Minimum) forAutomobile and Light-Duty ServiceD 6472 Specification for Recycled Glycol Base EngineCoolant Concentrate for Automobile and Light-Duty Ser-viceD 6660 Test Method for Freezing Point of
31、Aqueous Ethyl-ene Glycol Base Engine Coolants by Automatic PhaseTransition MethodE 394 Test Method for Iron in Trace Quantities Using the1,10-Phenanthroline MethodE 1177 Specification for Engine Coolant Grade Glycol3. General Requirements3.1 Engine coolant concentrates or prediluted glycol baseengin
32、e coolants shall be formulated with either ethylene glycolor propylene glycol meeting Specification E 1177, water, andshall contain suitable corrosion inhibitors, dye, and a foamsuppressor.3.2 Ethylene glycol base engine coolant concentrates (TypeI) may contain a maximum of 15 % other glycols, as lo
33、ng asthe physical, chemical, and performance requirements of thisspecification can be met. Similarly, prediluted ethylene glycolbase coolants (Type III) may contain a maximum of 7.5 %other glycols as long as all of the requirements of thisspecification can be met.3.3 Propylene glycol base engine coo
34、lant concentrates(Type II) may contain a combined maximum of 1 % otherglycols (less than 0.5 % for prediluted propylene glycol basecoolants, Type IV) and all of the physical, chemical, andperformance requirements of this specification must be met.3.4 All engine coolant concentrates or prediluted gly
35、colbase engine coolants shall conform to the general requirementsgiven in Table 1.3.5 Prediluted glycol base engine coolants shall be formu-lated using water that meets the following requirements:Property Specific Values ASTM Test MethodChlorides, ppm (grains/gal) 25 (1.5) max D 512, D 4327Sulfate,
36、ppm (grains/gal) 50 (3.0) max D 516, D 4327Hardness, as CaCO3, ppm (grains/gal) 20 (1.2) max D 1126pH 5.5 to 8.5 D 1293Iron, ppm (grains/gal) 1.0 (0.06) max E 394NOTE 3Prediluted coolants are intended for direct addition to anengine cooling system with no further dilution. However, if circumstancesr
37、equire addition and prediluted aqueous engine coolant is not available,use the appropriate engine coolant concentrate (Type I or II) diluted to 50volume % with water of at least the quality outlined in Table X1.1.3.6 When diluting engine coolant concentrates for actualservice, use a municipal (treat
38、ed) water, or a low-mineralcontent well water (see Appendix X1, Table X1.1). If suchwater is not available, use deionized (demineralized) or dis-tilled water. This procedure will minimize the formation ofhard water scale and avoid the introduction of mineral com-ponents, such as chlorides and sulfat
39、es, which can increase thecorrosion rate of aluminum and iron.3.7 When installed in accordance with the vehicle manufac-turers recommendations and those on the product label, enginecoolant concentrates or prediluted glycol base engine coolantsshall be suitable for use in a properly maintained coolin
40、gsystem (Appendix X1) in normal light-duty service for aminimum of one year without adversely affecting fluid flowand heat transfer.4. Detailed Requirements4.1 Glycol base coolant concentrates and prediluted cool-ants shall conform to the physical and chemical requirementsprescribed in Table 2 depen
41、ding on coolant type (see 1.2).4.2 The requirements listed in Table 2 for prediluted cool-ants (Types III and IV) are prescribed for the coolant aspackaged, without further dilution or adjustment.4.3 All coolant concentrates and prediluted coolants shallconform to the performance requirements listed
42、 in Table 3.4.4 Coolant concentrates shall be diluted for performancetesting as described in the individual ASTM test methods.4.5 If necessary, the freezing point of prediluted coolantsshall be adjusted with deionized water before proceeding withperformance testing. The freezing point of prediluted
43、ethyleneglycol base coolants (Type III) shall be 37C (34F) and thatof prediluted propylene glycol base coolants (Type IV) shall be31C (24F).4.6 Adjusted, prediluted engine coolant performance testsolutions shall be prepared as described in Table 3, FootnotesB through F.5. Keywords5.1 engine coolant;
44、 engine coolant concentrate; ethyleneglycol; light duty engine coolant; prediluted engine coolant;propylene glycolD 3306 08a3APPENDIXES(Nonmandatory Information)X1. COOLING SYSTEM MAINTENANCEX1.1 Filling the Cooling System:X1.1.1 Before installing engine coolant, the cooling systemshould be inspecte
45、d and necessary service work completed.X1.1.2 Cooling system fill should consist of coolant con-centrate and water or prediluted glycol base engine coolant (50volume % minimum).X1.1.3 When preparing solutions, the water should be ofsuch quality that it does not contain excessive solids, hardnesssalt
46、s, sulfates, or chlorides. In the absence of specific recom-mendations from the engine or vehicle manufacturer, see TableX1.1. Contact your local water department, the responsiblegovernment agency, or submit a water sample for analyses, ifthere is a question on water quality.X1.1.4 The recommended c
47、oolant concentration is 40 to70 %.X1.2 Essential Cooling System Service:X1.2.1 Check coolant concentration (freeze point). Themost accurate and preferred means of determining coolantconcentration is by the refractometer. (See X2.1 and TableX2.1).X1.2.2 Check coolant level and condition. Replace cool
48、antat service intervals recommended by the engine manufacturer,vehicle manufacturer, or designated service organization. Fol-low recommended practices.X1.2.3 Pressure test system for leaks (preferably whencold).X1.2.4 Test pressure cap and inspect radiator filler neck.X1.2.5 Inspect hoses and tighte
49、n hose connections.X1.2.6 Inspect drive belts and check for proper tension.X1.2.7 Test thermostat if the engine is running too hot or toocold. Replace with a thermostat recommended by the manu-facturer.X1.3 Premix coolant concentrate and water before addingto the cooling system.X1.4 When preparing additions or when replacing thecoolant in the engine system, use only clean, low mineralcontent water.X1.5 CautionDo not remove the radiator pressure capwhen the engine is hot. The cooling system will likely be underpressure. When the engine has cooled, careful
