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ASTM D6472-03

(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. 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.Note 1
Committee D-15 has developed this specification using experience, knowledge, and research from the recycling of used aqueous base engine coolants and has not substantially studied the effects of recycling glycols from other sources or with excessive contaminant levels. Efforts are being made to produce a redistilled glycol specification that addresses recycling used aqueous glycol base engine coolants and glycols from other sources.
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-Oct-2003
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 D6472-00 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service
Effective Date
01-Nov-2003
Replaced By
ASTM D6472-05 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service
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-Nov-2003
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-Nov-2003
Referred By
ASTM D4725-15(2023) - Standard Terminology for Engine Coolants and Related Fluids
Effective Date
01-Nov-2003

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ASTM D6472-03 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty ServiceASTM D6472-03 - Standard Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service
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ASTM D6472-03 - 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 – 03
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 D516 Test Method for Sulfate Ion in Water
D1119 Test Method for Ash Content of Engine Coolants
1.1 This specification covers the requirements for recycled
and Antitrusts
ethylene glycol base engine coolant concentrate and recycled
D1120 Test Method for Boiling Point of Engine Coolants
propylene glycol base engine coolant concentrate for use in
D1121 Test Method for Reserve Alkalinity of Engine
automobiles and light-duty vehicles. This specification pro-
Coolants and Antitrusts
vides a procedure for evaluating engine coolant recycling
D1122 TestMethodforSpecificGravityofEngineCoolant
technologies through the recycling of a reference synthetic
Concentrates and Engine Coolants by the Hydrometer
used engine coolant. It also specifies the chemical, physical,
D1123 Test Method for Water in Engine Coolant Concen-
and performance requirements for the recycled glycol base
trate by the Karl Fischer Reagent Method
engine coolant concentrate that is produced from that proce-
D1126 Test Method for Hardness in Water
dure.Whenusedat40to70volume%inwater,itwillfunction
D1176 Test Method for Sampling and Preparing Aqueous
effectively during both winter and summer. This material is
Solutions of Engine Coolants of Antirusts for Testing
intended to provide protection against freezing, boiling, and
Purposes
corrosion in automobile or other light-duty service cooling
D1177 Test Method for Freezing Point ofAqueous Engine
systems.
Coolants
NOTE 1—Committee D15 has developed this specification using expe-
D1193 Specification for Reagent Water
rience, knowledge, and research from the recycling of used aqueous base
D1287 Test Method for pH of Engine Coolants and Anti-
engine coolants and has not substantially studied the effects of recycling
rusts
glycols from other sources or with excessive contaminant levels. Efforts
D1293 Test Methods for pH of Water
are being made to produce a redistilled glycol specification that addresses
recyclingusedaqueousglycolbaseenginecoolantsandglycolsfromother D1384 TestMethodforCorrosionTestforEngineCoolants
sources.
in Glassware
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
D3306 Specification for Ethylene Glycol Base Engine
Coolant for Automobile and Light-Duty Service
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD15onEngine
D3634 Test Method for Trace Chloride Ion in Engine
Coolants and is the direct responsibility of Subcommittee D15.15 on Recycled
Engine Coolants.
Coolants
Current edition approved Nov. 1, 2003. Published January 2004. Originally
D4327 Test Method for Anions in Water by Chemically
approved in 2000. Last previous edition approved in 2000 as D 6472–00.
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 ----------------------
D6472–03
Suppressed Ion Chromatography 4. Procedure
D4340 Test Method for Corrosion of Cast Aluminum
4.1 In order to properly evaluate a coolant recycling tech-
Alloys in Engine Coola
...

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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.
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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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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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