ASTM D4985 - 10

    Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA)

    Active Standard ASTM D4985 | Developed by Subcommittee: D15.07

    Book of Standards Volume: 15.05


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    Abstract

    This specification covers the requirements for low silicate ethylene glycol base engine coolants for cooling systems of heavy-duty engines. Such engines are typically used in off-highway machinery for agriculture, mining, earth-moving, and construction; Class 5 to 8 over the road trucks and buses; high output stationary engine installations; and locomotive and marine installations. Prediluted coolants shall be prepared using deionized Ethylene glycol base engine coolant concentrates or prediluted ethylene glycol base engine coolants shall be formulated with ethylene glycol. The coolants shall conform to the prescribed physical, chemical, and performance requirements, which include relative density, freezing point, boiling point, ash content, pH, reserve alkalinity, water content, chloride ion content, silicon content, corrosion in glassware, simulated service test, foaming, and cavitation. The color and effect of nonmetals of the coolant shall be evaluated. Prediluted coolant shall also meet the required content of sulfate and iron. Its CaCO3 content shall be tested to determine its hardness.

    This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

    1. Scope

    1.1 This specification covers the requirements for low silicate ethylene glycol base engine coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 to 60 % 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 corrosion, freezing to at least 36.4°C (33.5°F), and boiling to at least 108°C (226°F).

    Note 1—This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients. A separate specification exists (D6210) for heavy-duty engine coolants which may be prepared from recycled or reprocessed used coolant or reprocessed industrial-source ethylene glycol.

    1.2 Coolants meeting this specification require an initial charge of a supplemental coolant additive (SCA) and require regular maintenance doses of an SCA to continue the protection in certain operating heavy-duty engine cooling systems, particularly those of the wet cylinder liner-in-block design. The SCA additions are defined by and are the primary responsibility of the engine manufacturer or vehicle manufacturer. If they provide no instructions, follow the SCA supplier's recommended instructions.

    1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

    1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    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

    D3306 Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service

    D3634 Test Method for Trace Chloride Ion in Engine Coolants

    D4327 Test Method for Anions in Water by Suppressed Ion Chromatography

    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

    D6129 Test Method for Silicon in Engine Coolant Concentrates by Atomic Absorption Spectroscopy

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

    D6210 Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines

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

    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

    E1177 Specification for Engine Coolant Grade Glycol

    Other Documents:

    FederalMethod2540B Total Dissolved Solids Dried at 103105C 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


    Referencing This Standard

    DOI: 10.1520/D4985-10

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM D4985-10, Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA), ASTM International, West Conshohocken, PA, 2010, www.astm.org

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