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ASTM D6472-05

(Specification)

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

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

SCOPE
1.1 This specification covers the requirements for recycled ethylene glycol base engine coolant concentrate and recycled propylene glycol base engine coolant concentrate 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 glycol base engine coolant concentrate that is produced from that procedure. When used at 40 to 70 volume % in water, it will function 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.

General Information

Status
Historical
Publication Date
30-Jun-2005
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 D6472-03 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service
Effective Date
01-Jul-2005
Replaced By
ASTM D6472-06 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service
Effective Date
01-May-2006
Referred By
ASTM D4725-15(2023) - Standard Terminology for Engine Coolants and Related Fluids
Effective Date
01-Jul-2005
Referred By
ASTM D3306-21 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
Effective Date
01-Jul-2005
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-Jul-2005

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ASTM D6472-05 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty ServiceASTM D6472-05 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service
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ASTM D6472-05 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate 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: D 6472 – 05
Standard Specification for
Recycled Glycol Base Engine Coolant Concentrate for
1
Automobile and Light-Duty Service
This standard is issued under the fixed designation D6472; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope D 1119 Test Method for Ash Content of Engine Coolants
and Antitrusts
1.1 This specification covers the requirements for recycled
D1120 Test Method for Boiling Point of Engine Coolants
ethylene glycol base engine coolant concentrate and recycled
D1121 Test Method for Reserve Alkalinity of Engine
propylene glycol base engine coolant concentrate for use in
Coolants and Antitrusts
automobiles and light-duty vehicles. Committee D15 has
D1122 TestMethodforSpecificGravityofEngineCoolant
developed this specification using experience, knowledge and
Concentrates and Engine Coolants by the Hydrometer
research from recycling used aqueous base engine coolant and
D1123 Test Method for Water in Engine Coolant Concen-
blends of used aqueous base engine coolant and virgin glycol.
trate by the Karl Fischer Reagent Method
This standard does not apply to coolant produced from other
D1126 Test Method for Hardness in Water
glycol sources such as medical waste, distillation bottoms,
D1176 Test Method for Sampling and Preparing Aqueous
airplane/airport deicers and polyester production waste. This
Solutions of Engine Coolants of Antirusts for Testing
specification provides a procedure for evaluating engine cool-
Purposes
ant recycling technologies through the recycling of a reference
D1177 Test Method for Freezing Point ofAqueous Engine
synthetic used engine coolant. It also specifies the chemical,
Coolants
physical,andperformancerequirementsfortherecycledglycol
D1193 Specification for Reagent Water
base engine coolant concentrate that is produced from that
D1287 Test Method for pH of Engine Coolants and Anti-
procedure. When used at 40 to 70 volume% in water, it will
rusts
function effectively during both winter and summer. This
D1293 Test Methods for pH of Water
material is intended to provide protection against freezing,
D1384 TestMethodforCorrosionTestforEngineCoolants
boiling,andcorrosioninautomobileorotherlight-dutyservice
in Glassware
cooling systems.
D1881 Test Method for Foaming Tendencies of Engine
1.2 The values stated in SI units are to be regarded as the
Coolants in Glassware
standard. The values given in parentheses are approximate
D1882 TestMethodforEffectofCoolingSystemChemical
equivalents and provided for information only.
Solutions on Organic Finishes for Automotive Vehicles
1.3 This standard does not purport to address all of the
D1888 Test Methods for Particulate and Dissolved Matter,
safety concerns, if any, associated with its use. It is the
3
Solids, or Residue in Water
responsibility of the user of this standard to establish appro-
D2570 Test Method for Simulated Service Corrosion Test-
priate safety and health practices and determine the applica-
ing of Engine Coolants
bility of regulatory limitations prior to use.
D2809 Test Method for Cavitation Corrosion Erosion-
2. Referenced Documents Corrosion Characteristics of Aluminum Pumps with En-
2
gine Coolants
2.1 ASTM Standards:
D2847 Practice for Testing Engine Coolants in Car and
D512 Test Methods for Chloride Ion in Water
Light Truck Service
D516 Test Method for Sulfate Ion in Water
D3306 Specification for Ethylene Glycol Base Engine
Coolant for Automobile and Light-Duty Service
D3634 Test Method for Trace Chloride Ion in Engine
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD15onEngine
Coolants
Coolants and is the direct responsibility of Subcommittee D15.15 on Recycled
Engine Coolants.
D4327 Test Method for Anions in Water by Chemically
Current edition approved July 1, 2005. Published August 2005. Originally
Suppressed Ion Chromatography
approved in 2000. Last previous edition approved in 2003 as D 6472–03.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
3
the ASTM website. Discontinued. See 1991 Annual Book of ASTM Standards, Vol 11.01.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6472–05
D4340 Test Method for Corrosion of Cast Aluminum shall be prepared in accordance with Annex A1. An appropri-
Alloys in Engine Coolants Under Heat-Rejecting Condi- ately sized batch of reference synthetic
...

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SCOPE
1.1 This specification covers the requirements for low silicate ethylene glycol base engine coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 % to 60 % 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 corrosion, freezing to at least −36.4 °C (−33.5 °F), and boiling to at least 108 °C (226 °F).
Note 1: This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients. A separate specification exists (Specification D6210) for heavy-duty engine coolants which may be prepared from recycled or reprocessed used coolant or reprocessed industrial-source ethylene glycol.  
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This specification establishes the testing and requirements of four types of engine coolant grade ethylene glycol and propylene glycol, including virgin glycols and those derived from the recycling of vehicle engine coolants and industrial source glycols. Types EG-1 and PG-1 cover glycols with sufficiently low limits on components to allow a blended coolant to meet most OEM (Original Equipment Manufacturer) specifications. These types will probably be virgin materials, although redistillation could produce a sufficiently pure product. Types EG-2 and PG-2 cover glycol that will be suitable for many coolants, and can either be redistilled or virgin. The commercial products shall be suitably sampled and tested, and shall conform accordingly to specified values of the following physical and chemical properties: clarity; color (Pt/Co scale); relative density; pH by volume in distilled water; acidity as acetic acid; composition by mass of individual glycols (including ethylene glycol, propylene glycol, dipropylene glycol, and others); total composition by mass of all glycols; water content; glycol ester content; and the maximum content for nitrites, nitrates, phosphates, silicon, chloride, sulfate, boron, aluminum, calcium, copper, iron, magnesium, lead, zinc, and iron.
SCOPE
1.1 This specification covers commercial products, engine coolant grade ethylene glycol and propylene glycol, including virgin glycols and those derived from the recycling of vehicle engine coolants and industrial source glycols.  
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1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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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.
SCOPE
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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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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
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