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

Keywords

1,3-propanediol; engine coolant; engine coolant concentrate; light-duty engine coolant; PDO; prediluted engine coolant; Automobile; Engine coolants/concentrates; Prediluted aqueous engine coolant; 1,3-propanediol;

ICS Code

ICS Number Code 71.100.45 (Refrigerants and antifreezes)

DOI: 10.1520/D7518-10

ASTM International is a member of CrossRef.

ASTM D7518