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    ASTM D6472-2006 Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service《机动车和轻型车辆用可再循环的乙二醇基发动机冷却剂浓缩物的标准规范》.pdf

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    ASTM D6472-2006 Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service《机动车和轻型车辆用可再循环的乙二醇基发动机冷却剂浓缩物的标准规范》.pdf

    1、Designation: D 6472 06Standard Specification forRecycled Glycol Base Engine Coolant Concentrate forAutomobile and Light-Duty Service1This standard is issued under the fixed designation D 6472; the number immediately following the designation indicates the year oforiginal adoption or, in the case of

    2、revision, the 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 recycledethylene glycol base engine coolant conc

    3、entrate and recycledpropylene glycol base engine coolant concentrate for use inautomobiles and light-duty vehicles. Committee D15 hasdeveloped this specification using experience, knowledge andresearch from recycling used aqueous base engine coolant andblends of used aqueous base engine coolant and

    4、virgin glycol.This standard does not apply to coolant produced from otherglycol sources such as medical waste, distillation bottoms,airplane/airport deicers and polyester production waste. Thisspecification provides a procedure for evaluating engine cool-ant recycling technologies through the recycl

    5、ing of a referencesynthetic used engine coolant. It also specifies the chemical,physical, and performance requirements for the recycled glycolbase engine coolant concentrate that is produced from thatprocedure. When used at 40 to 70 volume % in water, it willfunction effectively during both winter a

    6、nd summer. Thismaterial is intended to provide protection against freezing,boiling, and corrosion in automobile or other light-duty servicecooling systems.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are approximateequivalents and provided for

    7、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 of regulatory limitations prior to us

    8、e.2. Referenced Documents2.1 ASTM Standards:2D 512 Test Methods for Chloride Ion In WaterD 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 EngineCoo

    9、lants and AntirustsD 1122 Test Method for Density or Relative Density ofEngine Coolant Concentrates 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 1176 Practice for Sampling

    10、and Preparing Aqueous So-lutions of Engine Coolants or Antirusts for Testing Pur-posesD 1177 Test Method for Freezing Point of Aqueous EngineCoolantsD 1193 Specification for Reagent WaterD 1287 Test Method for pH of Engine Coolants and Anti-rustsD 1293 Test Methods for pH of WaterD 1384 Test Method

    11、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 Methods of Test for Particulate and DissolvedMatter in Water3D

    12、 2570 Test Method for Simulated Service Corrosion Test-ing of Engine CoolantsD 2809 Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With En-gine CoolantsD 2847 Practice for Testing Engine Coolants in Car andLight Truck ServiceD 3306 Specification for Glyc

    13、ol Base Engine Coolant forAutomobile and Light-Duty ServiceD 3634 Test Method for Trace Chloride Ion in EngineCoolantsD 4327 Test Method for Anions in Water by Chemically1This specification is under the jurisdiction ofASTM Committee D15 on EngineCoolants and is the direct responsibility of Subcommit

    14、tee D15.15 on RecycledEngine Coolants.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 2000. Last previous edition approved in 2005 as D 647205.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For

    15、 Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Withdrawn.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Suppressed Ion ChromatographyD 4340 Test Method for Corrosio

    16、n of Cast AluminumAlloys in Engine Coolants Under Heat-Rejecting Condi-tionsD 4656 Specification for Prediluted Aqueous Ethylene Gly-col Base Engine Coolant (50 Volume % Minimum) forAutomobiles and Light-Duty Service3D 5216 Specification for Propylene Glycol Base EngineCoolant for Automobile and Lig

    17、ht-Duty Service3D 5827 Test Method 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 6129 Test Method for Silicon in Engine Coolant

    18、Concen-trates by Atomic Absorption SpectroscopyD 6130 Test Method for Determination of Silicon and OtherElements in Engine Coolant by Inductively CoupledPlasma-Atomic Emission SpectroscopyD 6208 Test Method for Repassivation Potential of Alumi-num and Its Alloys by Galvanostatic MeasurementD 6257 Sp

    19、ecification for Prediluted Aqueous PropyleneGlycol Base Engine Coolant (50 Volume % Minimum) forAutomobile and Light-Duty Service3D 6660 Test Method for Freezing Point of Aqueous Ethyl-ene Glycol Base Engine Coolants by Automatic PhaseTransition MethodD 6471 Specification for Recycled PredilutedAque

    20、ous Gly-col Base Engine Coolant (50 Volume % Minimum) forAutomobile and Light-Duty Service2.2 Other Documents:SAE HS40 Maintenance for Automotive Engine CoolingSystem4GM 6043M Automotive Engine Coolant ConcentrateEthylene Glycol Type5GM 1825M Automotive Engine Coolant ConcentrateEthylene Glycol; 3.1

    21、1 Storage Stability and Compatibil-ity63. Reagents and Materials3.1 Purity of ReagentsReagent grade chemicals shall beused in all tests. Unless otherwise indicated, it is intended thatall reagents conform to the specifications of the Committee onAnalytical Reagents of the American Chemical Society w

    22、heresuch specifications are available7. Other grades may be used,provided it is first ascertained that the reagent is of sufficientlyhigh purity to permit its use without lessening the accuracy ofthe determination.3.2 Purity of WaterUnless otherwise indicated, referencesto water shall be understood

    23、to mean reagent water as definedby Type IV of Specification D 1193.4. Procedure4.1 In order to properly evaluate a coolant recycling tech-nology, a reference synthetic used coolant (Annex A1)istobeused as the feed stock. The reference synthetic used coolantshall be prepared in accordance with Annex

    24、A1. An appropri-ately sized batch of reference synthetic used coolant is to beprepared and used to purge the recycling process componentsand yield enough consistent product to complete the testingspecified within this specification4.2 Prepare the coolant recycling equipment or technologyin accordanc

    25、e with the manufacturers directions and recom-mendations.4.3 Vigorously stir or mix the reference synthetic usedcoolant using appropriate vessels and mixing equipment im-mediately prior to and during the processing through thecoolant recycling process.4.4 Recycle the reference synthetic used coolant

    26、 accordingto the manufacturers directions and recommendations.4.5 Evaluate the recycled coolant according to the require-ments listed in this specification.5. General Requirements5.1 The recycled glycol base engine coolant concentrateshall consist essentially of ethylene glycol or propylene glycolob

    27、tained from the processing of light-, medium- or heavy-dutyengine coolant products. The recycled glycol base enginecoolant concentrate can in part contain virgin glycol. It alsoshall contain suitable corrosion inhibitors, a foam suppressor,and sufficient water to dissolve the additives.5.1.1 Recycle

    28、d ethylene glycol base engine coolant concen-trates may be packaged and should be able to be poured attemperatures as low as 18C (0F). Other glycols such aspropylene and diethylene glycol may be included up to amaximum of 15 % if the chemical and physical properties inTable 1 are met.5.1.2 Recycled

    29、propylene glycol base engine coolant con-centrates may contain glycols other than propylene glycol up to1 % provided the chemical and physical properties of Table 1are met5.2 The recycled glycol base engine coolant concentrateshall conform to the chemical and physical properties in Table1. If the re

    30、cycled glycol base engine coolant concentratecontains chloride, or sulfate levels greater than the require-ments specified in Table 1, fleet testing requirements describedin Section 6 shall be met. If the chloride, or sulfate require-ments, or both, in Table 1 are met, fleet testing is not required.

    31、NOTE 1The intention of conducting fleet testing is to verify that theeffects of residual contaminants left in the recycled glycol base enginecoolant are neutralized through real world application in a fleet test. Dueto the fact that there are not enough industry field test data available tosupport s

    32、etting hard specification limits, the fleet test requirements inSection 6 specify a protocol and limits based on comparing the recycledglycol base engine coolant to an industry standard reference enginecoolant that is known to adequately protect modern day cooling systemsfrom corrosion.4SAE Handbook

    33、, available from Society of Automotive Engineers, 400 Com-monwealth Drive, Warrendale, PA 15096.5Applicable rewrite available in Annex A2.6Applicable rewrite available in Annex A3.7Reagent Chemicals, American Chemical Society Specifications, AmericanChemical Society, Washington, DC. For suggestions

    34、on the testing of reagents notlisted by the American Chemical Society, see Analar Standards for LaboratoryChemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeiaand National Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville,MD.D64720625.3 The recycled glycol base

    35、engine coolant concentrateshall conform to the general requirements in Table 2.5.4 The recycled glycol base engine coolant concentrateshall be in accordance with the performance requirements inTable 3.5.5 When preparing solutions for actual service, use mu-nicipal (treated) water, or low mineral con

    36、tent well water. Ifsuch water is not available, then use deionized (demineralized)or distilled water. This practice will minimize the formation ofhard water scale and avoid the introduction of aggressivecontaminants, such as chlorides and sulfates, that can increasethe corrosion rate of aluminum and

    37、 iron (see Appendix X1 foradditional information).5.6 The product, when installed in accordance with therecommendations of the manufacturer of the vehicle or thecoolant recycling process, and those on the product label, shallbe suitable for use in a properly maintained cooling system (seeAppendix X1

    38、) in normal passenger car service for a minimumof one year without adversely affecting fluid flow and heattransfer.6. Fleet Testing Requirements6.1 Engine CoolantsReference engine coolant concen-trate (see Annex A2) and recycled engine coolant concentrateshall be used to conduct the fleet testing.6.

    39、2 VehiclesA minimum of fourteen vehicles is recom-mended to start the test: seven containing reference enginecoolant concentrate (control vehicles) and seven containingrecycled engine coolant concentrate (test vehicles). A mini-mum of five control vehicles and five test vehicles shall finishthe test

    40、. Starting with fourteen vehicles allows for vehicles todrop out of the test for various reasons, that is, mechanicalfailure, coolant contamination, etc.6.2.1 Vehicle SelectionAll vehicle cooling systems shouldbe inspected prior to selection. Vehicles with corroded coolingsystems should not be used

    41、for testing purposes. Vehicleselection shall be made as follows:6.2.1.1 Control vehicles and test vehicles shall be matchedpairs and be new or have similar low mileage accumulation.6.2.1.2 Same year, make, and model.6.2.1.3 Similar mileage and cooling system conditions.6.2.1.4 Same cooling system an

    42、d power train configuration.6.2.1.5 Aluminum head(s), aluminum radiator, aluminumheater core, and aluminum water pump (housing).6.2.1.6 Cast iron block (optional).NOTE 2Vehicles equipped with cast iron heads may be tested inaddition to those specified above.Aminimum of five control vehicles andfive

    43、test vehicles, equipped with aluminum heads, shall complete the testand be included in the conclusive analysis report.6.2.2 Vehicle SetupAll vehicles shall be set up in accor-dance with Practice D 2847 unless otherwise specified withinthis specification.6.2.2.1 All vehicles shall be set up with a ne

    44、w aluminumhead(s), aluminum radiator, aluminum water pump, thermostat,hoses, belts and radiator/cooling system cap. Installation ofTABLE 1 Physical and Chemical RequirementsPropertyEthylene GlycolBase SpecificValuesPropyleneGlycol BaseSpecific ValuesASTM TestMethodRelative density, 15.5C(60/60F)1.11

    45、0 to 1.145 1.030 to 1.065 D 1122, D 5931Freezing point, 50 volume% in distilled water, C ( )37 (34) maxor lower32 (26) maxor lowerD 1177, D 6660Boiling pointA, undiluted, C(F) 50 volume % indistilled water163 (325) min 152 (305) min D 1120107.8 (226) min 104 (219) min D 1120Effect on automotive fini

    46、sh(use clear coat thermoseturethane or acrylicurethane finish)no effect no effect D 1882BAsh content, mass % 5 max 5 max D 1119pH, 50 volume % in distilledwater7.5 to 11.0 7.5 to 11.0 D 1287Chloride, ppm 25 max 25 max D 3634C, D 5827Sulfate, ppm 100 max 100 max D 5827Water, mass % 5 max 5 max D 1123

    47、Reserve alkalinity, mL ReportDReportDD 1121ASome precipitate may be observed at the end of the test. This should not because for rejection.BCurrently, many vehicle manufacturers prepare test panels using the specificpaint finishes employed on their actual product. Coolant suppliers and vehiclemanufa

    48、cturers should agree on the exact test procedures and acceptance criteriaon an individual basis.CIn case of dispute, Test Method D 3634 shall be the preferred method.DAgreed value between the supplier and the customer.TABLE 2 General RequirementsProperty Specified Values ASTM Test MethodColor Distin

    49、ctive Effect on nonmetals No adverse affect TABLE 3 Performance RequirementsProperty Specific ValuesASTM TestMethodCorrosion in glassware; weight loss, mg/specimenD 1384Copper 10 maxSolder 30 maxBrass 10 maxSteel 10 maxCast iron 10 maxCast aluminum 30 maxSimulated service test; weight loss, mg/specimenD 2570Copper 20 maxSolder 60 maxBrass 20 maxSteel 20 maxCast iron 20 maxCast aluminum 60 maxCorrosion of cast aluminum alloys at heat-rejecting surfaces; weight loss, mg/cm2/weekD 43401.0 maxFoaming D 1881Volume, mL 150 maxBreak time, s 5 maxCavitation-Erosion


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