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ASTM D3306-03

(Specification)

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

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

SCOPE
1.1 This specification covers the requirements for ethylene glycol or propylene glycol 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.
1.2 The coolants governed by this specification are categorized as follows:
Coolant TypeDescriptionI Ethylene glycol base concentrateII Propylene glycol base concentrateIII Ethylene glycol predilute (50 vol %)IV Propylene glycol predilute (50 vol %)
Note 1--This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients. Separate specifications exist for engine coolants prepared from recycled or reprocessed used coolant or reprocessed industrial-source glycols.
1.3 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
1.4 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.
Note 2--This specification applies to automobiles and light duty service. Specifications D4985 and D6210 exist for heavy duty engine service.

General Information

Status
Historical
Publication Date
09-Sep-2003
ICS
71.100.45 - Refrigerants and antifreezes
Technical Committee
D15 - Engine Coolants and Related Fluids
Drafting Committee
D15.07 - Specifications
Current Stage
Ref Project

Relations

Replaces
ASTM D3306-01 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
Effective Date
10-Sep-2003
Replaced By
ASTM D3306-05 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
Effective Date
01-Oct-2005
Referred By
ASTM D1119-22 - Standard Test Method for Percent Ash Content of Engine Coolants
Effective Date
10-Sep-2003
Referred By
ASTM D7715-12(2021) - Standard Specification for Fully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines
Effective Date
10-Sep-2003
Referred By
ASTM D2847-22 - Standard Practice for Testing Engine Coolants in Car and Light Truck Service
Effective Date
10-Sep-2003
Referred By
ASTM D4985-10(2023) - Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA)
Effective Date
10-Sep-2003
Referred By
ASTM D4725-15(2023) - Standard Terminology for Engine Coolants and Related Fluids
Effective Date
10-Sep-2003
Referred By
ASTM D2570-16 - Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants
Effective Date
10-Sep-2003
Referred By
ASTM D6210-17 - Standard Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines<rangeref></rangeref >
Effective Date
10-Sep-2003
Referred By
ASTM D6660-01(2023) - Standard Test Method for Freezing Point of Aqueous Ethylene Glycol Base Engine Coolants by Automatic Phase Transition Method
Effective Date
10-Sep-2003

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ASTM D3306-03 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty ServiceASTM D3306-03 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
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ASTM D3306-03 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
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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 3306 – 03
Standard Specification for
Glycol Base Engine Coolant for Automobile and Light-Duty
1
Service
This standard is issued under the fixed designation D3306; 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.
TABLE 1 General Requirements
1. Scope
Property Specified Values ASTM Test Method
1.1 This specification covers the requirements for ethylene
Color Distinctive . . .
glycol or propylene glycol base engine coolants used in
Effect on nonmetals No adverse effect under consideration
automobiles or other light duty service cooling systems.When
concentratesareusedat40to70%concentrationbyvolumein
water, or when prediluted glycol base engine coolants (50
D1119 Test Method for Percent Ash Content of Engine
volume % minimum) are used without further dilution, they
3
Coolants and Antirusts
will function effectively to provide protection against freezing,
3
D1120 Test Method for Boiling Point of Engine Coolants
boiling, and corrosion.
D1121 Test Method for Reserve Alkalinity of Engine
1.2 The coolants governed by this specification are catego-
3
Coolants and Antirusts
rized as follows:
D1122 Test Method for Density and Relative Density of
Coolant Type Description
Engine Coolant Concentrates and Engine Coolants by the
3
I Ethylene glycol base concentrate Hydrometer
II Propylene glycol base concentrate
D1123 Test Methods forWater in Engine Coolant Concen-
III Ethylene glycol predilute (50 vol %)
3
trate by the Karl Fischer Reagent Method
IV Propylene glycol predilute (50 vol %)
2
D1126 Test Method for Hardness in Water
D1177 Test Method for Freezing Point ofAqueous Engine
3
Coolants
NOTE 1—This specification is based on the knowledge of the perfor-
2
D1193 Specification for Reagent Water
mance of engine coolants prepared from new or virgin ingredients.
Separatespecificationsexistforenginecoolantspreparedfromrecycledor
D1287 Test Method for pH of Engine Coolants and Anti-
3
reprocessed used coolant or reprocessed industrial-source glycols.
rusts
2
D1293 Test Methods for pH of Water
1.3 The values stated in SI units are to be regarded as the
D1384 TestMethodforCorrosionTestforEngineCoolants
standard. The values in parentheses are for information only.
3
1.4 This standard does not purport to address all of the in Glassware
D1881 Test Method for Foaming Tendencies of Engine
safety concerns, if any, associated with its use. It is the
3
responsibility of the user of this standard to establish appro- Coolants in Glassware
D1882 TestMethodforEffectofCoolingSystemChemical
priate safety and health practices and determine the applica-
3
bility of regulatory limitations prior to use. Solutions on Organic Finishes for Automotive Vehicles
D1888 Test Methods for Particulate and Dissolved Matter,
NOTE 2—This specification applies to automobiles and light duty
4
Solids, or Residue in Water
service. Specifications D4985 and D6210 exist for heavy duty engine
D2570 Test Method for Simulated Service Corrosion Test-
service.
3
ing of Engine Coolants
2. Referenced Documents
D2809 Test Method for Cavitation Corrosion and Erosion-
Corrosion Characteristics of Aluminum Pumps with En-
2.1 ASTM Standards:
3
2
gine Coolants
D512 Test Methods for Chloride Ion in Water
2
D3321 Test Method for Use of the Refractometer for Field
D516 Test Methods for Sulfate Ion in Water
Test Determination of the Freezing Point of Aqueous
3
Engine Coolants
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD15onEngine
CoolantsandisthedirectresponsibilityofSubcommitteeD15.07onSpecifications.
Current edition approved Sept. 10, 2003. Published November 2003. Originally
3
approved in 1974. Last previous edition approved in 2001 as D3306–01. Annual Book of ASTM Standards, Vol 15.05.
2 4
Annual Book of ASTM Standards, Vol 11.01. Discontinued—See 1990 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 ----------------------
D3306–03
TABLE 2 Physical and Chemical Requirements
Property Type I Type II Type III Type IV ASTM Test Method
Relative density 1.110 to 1.145 1.030 to 1.065 1.065 min 1.025 min D 1122, D 5931
15.5/15.5°C (60/60°F)
Freezing point, °C (°F): D 1177, D 6660
50 vol % in DI water −37 (−34) max −32 (−26) max
Undiluted −37 (−34) max −32 (−26) max
A
Boiling point, °C (°F): D 1120
50 vol % in DI water 108 (226) min 104 (219) min
Undiluted 163 (325) min 152 (305 min) 108 (226) min 104 (219) min
Ash content, mass % 5 max 5 max 2.5 max 2.5 max D 1119
pH: D 1287
50 vol % in DI water 7.5 to 11 7.5 to 11
Undil
...

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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).
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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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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.  
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Note 2: These products may also be marketed in a ready-to-use form (prediluted).  
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