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ASTM D6471-06

(Specification)

Standard Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty Service

Standard Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty Service

ABSTRACT
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.
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.
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.

General Information

Status
Historical
Publication Date
31-May-2006
ICS
71.100.45 - Refrigerants and antifreezes
Technical Committee
D15 - Engine Coolants and Related Fluids
Drafting Committee
D15.15 - Recycled Engine Coolant
Current Stage
Ref Project

Relations

Replaces
ASTM D6471-05 - Standard Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty Service
Effective Date
01-Jun-2006
Replaced By
ASTM D6471-10 - Standard Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty Service (Withdrawn 2019)
Effective Date
01-Apr-2010
Referred By
ASTM D5752-10(2017) - Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty Engines
Effective Date
01-Jun-2006
Referred By
ASTM D3306-21 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
Effective Date
01-Jun-2006
Referred By
ASTM D4725-15(2023) - Standard Terminology for Engine Coolants and Related Fluids
Effective Date
01-Jun-2006

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ASTM D6471-06 - Standard Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty ServiceASTM D6471-06 - Standard Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty Service
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ASTM D6471-06 - Standard Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty Service
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D6471 – 06
Standard Specification for
Recycled Prediluted Aqueous Glycol Base Engine Coolant
(50 Volume % Minimum) for Automobile and Light-Duty
1
Service
This standard is issued under the fixed designation D6471; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
1.1 Thisspecificationcoverstherequirementsforarecycled 2.1 ASTM Standards:
prediluted aqueous ethylene glycol (50 volume % minimum) D512 Test Methods for Chloride Ion In Water
baseenginecoolantandrecycledpredilutedaqueouspropylene D516 Test Method for Sulfate Ion in Water
glycol (50 volume % minimum) base engine coolant for use in D1119 Test Method for Percent Ash Content of Engine
automobiles and light-duty vehicles. Committee D15 has Coolants
developed this specification using experience, knowledge and D1120 Test Method for Boiling Point of Engine Coolants
research from recycling used aqueous base engine coolant and D1121 Test Method for ReserveAlkalinity of Engine Cool-
blends of used aqueous base engine coolant and virgin glycol. ants and Antirusts
This standard does not apply to coolant produced from other D1122 Test Method for Density or Relative Density of
glycol sources such as medical waste, distillation bottoms, Engine Coolant Concentrates and Engine Coolants ByThe
airplane/airport deicers and polyester production waste. This Hydrometer
specification provides a procedure for evaluating engine cool- D1126 Test Method for Hardness in Water
ant recycling technologies through the recycling of a reference D1176 Practice for Sampling and Preparing Aqueous Solu-
synthetic used engine coolant. It also specifies the chemical, tions of Engine Coolants orAntirusts for Testing Purposes
physical, and performance requirements for the recycled pre- D1177 Test Method for Freezing Point of Aqueous Engine
diluted aqueous glycol base engine coolant that is produced Coolants
from that procedure. When used without further dilution, this D1193 Specification for Reagent Water
product functions effectively during both winter and summer. D1287 Test Method for pH of Engine Coolants and Anti-
Thismaterialisintendedtoprovideprotectionagainstfreezing, rusts
boiling, and corrosion in automobile or other light-duty service D1293 Test Methods for pH of Water
cooling systems. D1384 Test Method for Corrosion Test for Engine Coolants
1.2 The values stated in SI units are to be regarded as the in Glassware
standard. The values given in parentheses are approximate D1881 Test Method for Foaming Tendencies of Engine
equivalents and provided for information only. Coolants in Glassware
1.3 This standard does not purport to address all of the D1882 Test Method for Effect of Cooling System Chemical
safety concerns, if any, associated with its use. It is the Solutions on Organic Finishes for Automotive Vehicles
responsibility of the user of this standard to establish appro- D1888 Methods of Test for Particulate and Dissolved Mat-
3
priate safety and health practices and determine the applica- ter in Water
bility of regulatory limitations prior to use. D2570 Test Method for Simulated Service Corrosion Test-
ing of Engine Coolants
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD15onEngine
2
Coolants and is the direct responsibility of Subcommittee D15.15 on Recycled For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Engine Coolant. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved June 1, 2006. Published June 2006. Originally Standards volume information, refer to the standard’s Document Summary page on
approved in 1999. Last previous edition approved in 2005 as D6471–05. DOI: the ASTM website.
3
10.1520/D6471-06. Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6471 – 06
7
D2809 Test Method for Cavitation Corrosion and Erosion- such specifications are available. Other grades may be used,
Corrosion Characteristics of Aluminum Pumps With En- provided it is first ascertained that the reagent is of sufficiently
gine Coolants high purity to permit its use without lessening the accuracy of
D2847 Practice for Testing Engine Coolants in Car and the determination.
Light Truck Service 3.2 Purity of Water—Unless otherwise indicated, references
D3306 Specification for Glycol Base Engine Coolant for to water shall be understood to mean reagent water as defined
Automobile and Light-Duty Service by Type IV of Specification D1193.
D3634 Te
...

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SCOPE
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SCOPE
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ASTM D1177-22(Test Method)
Standard Test Method for Freezing Point of Aqueous Engine Coolants

SIGNIFICANCE AND USE
5.1 The freezing point of an engine coolant indicates the coolant freeze protection.  
5.2 The freezing point of an engine coolant may be used to determine the approximate glycol or glycerin content, provided the glycol type is known.
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1.1 This test method covers the determination of the freezing point of an aqueous engine coolant solution in the laboratory.  
Note 1: Where solutions of specific concentrations are to be tested, they shall be prepared from representative samples as directed in Practice D1176. Secondary phases separating on dilution need not be separated.
Note 2: These products may also be marketed in a ready-to-use form (prediluted).  
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