ASTM D7518-10 - 1.4.2010
 
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

E394-22

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

Federal Method 2540B

Total Dissolved Solids Dried at 103-105C

E29-22

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

D1126-17(2025)

Standard Test Method for Hardness in Water

D1177-22

Standard Test Method for Freezing Point of Aqueous Engine Coolants

D1287-25

Standard Test Method for pH of Engine Coolants and Antirusts

D1293-18

Standard Test Methods for pH of Water

D1384-24

Standard Test Method for Corrosion Test for Engine Coolants in Glassware

D1881-24

Standard Test Method for Foaming Tendencies of Engine Coolants in Glassware

D1882-17(2025)

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

D2570-26

Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants

D2809-21

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

D3321-19(2023)

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

D3634-21(2025)

Standard Test Method for Trace Chloride Ion in Engine Coolants

D4327-17(2025)

Standard Test Method for Anions in Water by Suppressed Ion Chromatography

D4340-26

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

D4725-25a

Standard Terminology for Engine Coolants and Related Fluids (Includes all amendments and changes 6/10/2025).

D5827-22

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

D5931-20(2025)

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

D6130-24

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

D6660-01(2023)

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

D7388-23

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

D512-23

Standard Test Methods for Chloride Ion In Water

D516-22

Standard Test Method for Sulfate Ion in Water

D1119-22

Standard Test Method for Percent Ash Content of Engine Coolants

D1120-22

Standard Test Method for Boiling Point of Engine Coolants

D1121-25

Standard Test Methods for Reserve Alkalinity of Engine Coolants and Antirusts

D1122-22

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

D1123-22a

Standard Test Methods for Water in Engine Coolant Concentrate by the Karl Fischer Reagent Method (Includes all amendments and changes 9/21/2022).