ASTM D7518-09

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

STANDARD published on 1.4.2009

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The information about the standard:

Designation standards: ASTM D7518-09
Note: WITHDRAWN
Publication date standards: 1.4.2009
SKU: NS-38657
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D7518-09 :

Keywords:

1,3-propanediol, engine coolant, engine coolant concentrate, light-duty engine coolant, PDO, prediluted engine coolant, ICS Number Code 71.100.45 (Refrigerants and antifreezes)

Additional information

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.

1.2 The coolants governed by this specification are categorized as follows:

Coolant Type	Description

I	1,3 Propanediol base concentrate
II	1,3 Propanediol predilute (50 vol %)

Note 1—This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients.

Note 2—This specification applies to automobiles and light-duty service. A specification for heavy-duty engine service is under development.

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

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).

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