This specification covers the requirements for a recycled prediluted aqueous ethylene and propylene glycol base engine coolant for automobile and light-duty service. This standard is not applicable to coolant produced from other glycol sources. This specification provides a procedure for evaluating engine coolant recycling technologies and specifies the chemical, physical, and performance requirements for recycled prediluted aqueous glycol base engine coolant. The recycled prediluted aqueous glycol base engine coolant shall conform to the following chemical and physical properties: relative density, freezing point, boiling point, effect on automotive finish, ash content, pH, chloride, sulfate, and reserve alkalinity. The engine coolant shall conform to fleet testing requirements included in this specification.

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 a recycled prediluted aqueous ethylene glycol (50 volume % minimum) base engine coolant and recycled prediluted aqueous propylene glycol (50 volume % minimum) base engine coolant for use in automobiles and light-duty vehicles. Committee D15 has developed this specification using experience, knowledge and research from recycling used aqueous base engine coolant and blends of used aqueous base engine coolant and virgin glycol. This standard does not apply to coolant produced from other glycol sources such as medical waste, distillation bottoms, airplane/airport deicers and polyester production waste. This specification provides a procedure for evaluating engine coolant recycling technologies through the recycling of a reference synthetic used engine coolant. It also specifies the chemical, physical, and performance requirements for the recycled prediluted aqueous glycol base engine coolant that is produced from that procedure. When used without further dilution, this product functions effectively during both winter and summer. This material is intended to provide protection against freezing, boiling, and corrosion in automobile or other light-duty service cooling systems.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are approximate equivalents and provided for information only.

1.3 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

D1126 Test Method for Hardness in Water

D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing Purposes

D1177 Test Method for Freezing Point of Aqueous Engine Coolants

D1193 Specification for Reagent Water

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

D2847 Practice for Testing Engine Coolants in Car and Light Truck Service

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

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

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

D6208 Test Method for Repassivation Potential of Aluminum and Its Alloys by Galvanostatic Measurement

D6472 Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service

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

Other Documents

Keywords

glycol base; light-duty engine coolant; recycled prediluted aqueous engine coolant; reference engine coolant concentrate; reference synthetic used coolant; Aqueous engine coolant; Automotive and light-duty service--specifications; Chemicals--specifications; Engine coolants/concentrates--specifications; Light duty engine service--specifications; Prediluted aqueous engine coolant; Recycled engine coolant;

ICS Code

ICS Number Code 71.100.45 (Refrigerants and antifreezes)

Citing ASTM Standards

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