ASTM D7518 - 10

    Standard Specification for 1,3 Propanediol (PDO) Base Engine Coolant for Automobile and Light-Duty Service

    Active Standard ASTM D7518 | Developed by Subcommittee: D15.07

    Book of Standards Volume: 15.05


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    ASTM D7518

    1. Scope

    1.1 This specification covers the requirements for 1,3 propanediol base engine coolants used in automobiles or other light-duty service cooling systems. When concentrates are used at 40 to 70 % concentration by volume in water, or when prediluted glycol base engine coolants (50 volume % minimum) are used without further dilution, they will function effectively to provide protection against freezing, boiling, and corrosion.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    D512 Test Methods for Chloride Ion In Water

    D516 Test Method for Sulfate Ion in Water

    D1119 Test Method for Percent Ash Content of Engine Coolants

    D1120 Test Method for Boiling Point of Engine Coolants

    D1121 Test Method for Reserve Alkalinity of Engine Coolants and Antirusts

    D1122 Test Method for Density or Relative Density of Engine Coolant Concentrates and Engine Coolants By The Hydrometer

    D1123 Test Methods for Water in Engine Coolant Concentrate by the Karl Fischer Reagent Method

    D1126 Test Method for Hardness in Water

    D1177 Test Method for Freezing Point of Aqueous Engine Coolants

    D1287 Test Method for pH of Engine Coolants and Antirusts

    D1293 Test Methods for pH of Water

    D1384 Test Method for Corrosion Test for Engine Coolants in Glassware

    D1881 Test Method for Foaming Tendencies of Engine Coolants in Glassware

    D1882 Test Method for Effect of Cooling System Chemical Solutions on Organic Finishes for Automotive Vehicles

    D2570 Test Method for Simulated Service Corrosion Testing of Engine Coolants

    D2809 Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With Engine Coolants

    D3321 Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine Coolants

    D3634 Test Method for Trace Chloride Ion in Engine Coolants

    D4327 Test Method for Anions in Water by Suppressed Ion Chromatography

    D4340 Test Method for Corrosion of Cast Aluminum Alloys in Engine Coolants Under Heat-Rejecting Conditions

    D4725 Terminology for Engine Coolants

    D5827 Test Method for Analysis of Engine Coolant for Chloride and Other Anions by Ion Chromatography

    D5931 Test Method for Density and Relative Density of Engine Coolant Concentrates and Aqueous Engine Coolants by Digital Density Meter

    D6130 Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy

    D6660 Test Method for Freezing Point of Aqueous Ethylene Glycol Base Engine Coolants by Automatic Phase Transition Method

    D7388 Specification for Engine Coolant Grade 1,3-Propanediol (PDO)

    E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

    E394 Test Method for Iron in Trace Quantities Using the 1,10-Phenanthroline Method

    Other Documents

    FederalMethod2540B Total Dissolved Solids Dried at 103-105C Standard Method for the Examination of Water and Wastewater. American Public Health Association, et al, 1015 15th Street, N.W. Washington, DC 20005.


    ICS Code

    ICS Number Code 71.100.45 (Refrigerants and antifreezes)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/D7518-10

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