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ASTM D3306-19

(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 % or higher engine coolant concentrate 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 Type  
Description  
I  
Ethylene glycol base concentrate  
II  
Propylene glycol base concentrate  
V  
Ethylene glycol base concentrate
containing glycerin  
III  
Ethylene glycol predilute 50 volume % or higher engine coolant concentrate  
IV  
Propylene glycol predilute 50 volume % or higher engine coolant concentrate  
VI  
Ethylene glycol base predilute
containing glycerin 50 volume % or higher engine coolant concentrate
Note 1: This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients. This specification shall also apply to engine coolants prepared using glycol generated from recycled or reprocessed used coolant or reprocessed industrial-source glycol, provided that said glycol meets the requirements of Specification E1177. Separate specifications (D6471 and D6472) exist for engine coolants prepared from recycled or reprocessed used coolant or reprocessed industrial-source glycol that does not meet the requirements established in Specification E1177. This specification shall also apply to glycol based engine coolants prepared using fully refined glycerin provided that said glycerin meets the requirements for Specification D7640.  
1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 2: This specification applies to glycol base engine coolant for automobiles and light duty service. Specifications D4985 and D6210 exist for heavy duty engine service.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Historical
Publication Date
31-Mar-2019
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 D3306-14 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
Effective Date
01-Apr-2019
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
01-Apr-2019
Referred By
ASTM D7715-12(2021) - Standard Specification for Fully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines
Effective Date
01-Apr-2019
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
01-Apr-2019
Referred By
ASTM D2570-16 - Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants
Effective Date
01-Apr-2019
Referred By
ASTM D1119-22 - Standard Test Method for Percent Ash Content of Engine Coolants
Effective Date
01-Apr-2019
Referred By
ASTM D6210-17 - Standard Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines<rangeref></rangeref >
Effective Date
01-Apr-2019
Referred By
ASTM D2847-22 - Standard Practice for Testing Engine Coolants in Car and Light Truck Service
Effective Date
01-Apr-2019
Referred By
ASTM D4725-15(2023) - Standard Terminology for Engine Coolants and Related Fluids
Effective Date
01-Apr-2019

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ASTM D3306-19 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty ServiceASTM D3306-19 - Standard Specification for Glycol Base Engine Coolant 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:D3306 −19
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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This specification covers the requirements for ethylene
responsibility of the user of this standard to establish appro-
glycol or propylene glycol base engine coolants used in
priate safety, health, and environmental practices and deter-
automobiles or other light duty service cooling systems.When
mine the applicability of regulatory limitations prior to use.
concentratesareusedat40to70%concentrationbyvolumein
water, or when prediluted glycol base engine coolants 50
NOTE 2—This specification applies to glycol base engine coolant for
automobilesandlightdutyservice.SpecificationsD4985andD6210exist
volume % or higher engine coolant concentrate are used
for heavy duty engine service.
without further dilution, they will function effectively to
1.5 This international standard was developed in accor-
provide protection against freezing, boiling, and corrosion.
dance with internationally recognized principles on standard-
1.2 The coolants governed by this specification are catego-
ization established in the Decision on Principles for the
rized as follows:
Development of International Standards, Guides and Recom-
Coolant Type Description
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
I Ethylene glycol base concentrate
II Propylene glycol base concentrate
V Ethylene glycol base concentrate
2. Referenced Documents
containing glycerin
2
2.1 ASTM Standards:
III Ethylene glycol predilute 50 volume % or higher
D512Test Methods for Chloride Ion In Water
engine coolant concentrate
IV Propylene glycol predilute 50 volume % or higher D516Test Method for Sulfate Ion in Water
engine coolant concentrate
D1119Test Method for Percent Ash Content of Engine
VI Ethylene glycol base predilute
Coolants
containing glycerin 50 volume % or higher engine
coolant concentrate D1120Test Method for Boiling Point of Engine Coolants
D1121Test Method for ReserveAlkalinity of Engine Cool-
NOTE 1—This specification is based on the knowledge of the perfor-
ants and Antirusts
mance of engine coolants prepared from new or virgin ingredients. This
specification shall also apply to engine coolants prepared using glycol
D1122Test Method for Density or Relative Density of
generated from recycled or reprocessed used coolant or reprocessed
EngineCoolantConcentratesandEngineCoolantsByThe
industrial-source glycol, provided that said glycol meets the requirements
Hydrometer
of Specification E1177. Separate specifications (D6471 and D6472) exist
D1123Test Methods for Water in Engine Coolant Concen-
forenginecoolantspreparedfromrecycledorreprocessedusedcoolantor
trate by the Karl Fischer Reagent Method
reprocessed industrial-source glycol that does not meet the requirements
established in Specification E1177. This specification shall also apply to
D1126Test Method for Hardness in Water
glycol based engine coolants prepared using fully refined glycerin
D1177Test Method for Freezing Point of Aqueous Engine
provided that said glycerin meets the requirements for Specification
Coolants
D7640.
D1287TestMethodforpHofEngineCoolantsandAntirusts
1.3 The values stated in SI units are to be regarded as
D1293Test Methods for pH of Water
standard. The values given in parentheses after SI units are
D1384Test Method for Corrosion Test for Engine Coolants
providedforinformationonlyandarenotconsideredstandard.
in Glassware
D1881Test Method for Foaming Tendencies of Engine
1
ThisspecificationisunderthejurisdictionofASTMCommitteeD15onEngine
Coolants and Related Fluids and is the direct responsibility of Subcommittee
2
D15.07 on Specifications. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved April 1, 2019. Published April 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1974. Last previous edition approved in 2014 as D3306–14. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D3306–19. the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3306−19
Cool
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D3306 − 14 D3306 − 19
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. 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*
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 % or higher engine coolant concentrate 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 Type Description
I Ethylene glycol base concentrate
II Propylene glycol base concentrate
V Ethylene glycol base concentrate
containing glycerin
III Ethylene glycol predilute 50 volume % or higher
engine coolant concentrate
IV Propylene glycol predilute 50 volume % or higher
engine coolant concentrate
VI Ethylene glycol base predilute
containing glycerin 50 volume % or higher engine
coolant concentrate
NOTE 1—This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients. This specification
shall also apply to engine coolants prepared using glycol generated from recycled or reprocessed used coolant or reprocessed industrial-source glycol,
provided that said glycol meets the requirements of Specification E1177. Separate specifications (D6471 and D6472) exist for engine coolants prepared
from recycled or reprocessed used coolant or reprocessed industrial-source glycol that does not meet the requirements established in Specification E1177.
This specification shall also apply to glycol based engine coolants prepared using fully refined glycerin provided that said glycerin meets the requirements
for Specification D7640.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.after
SI units are provided for information only and are not considered standard.
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
NOTE 2—This specification applies to glycol base engine coolant for automobiles and light duty service. Specifications D4985 and D6210 exist for
heavy duty engine service.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D512 Test Methods for Chloride Ion In Water
1
This specification is under the jurisdiction of ASTM Committee D15 on Engine Coolants and Related Fluids and is the direct responsibility of Subcommittee D15.07
on Specifications.
Current edition approved April 15, 2014April 1, 2019. Published May 2014April 2019. Originally approved in 1974. Last previous edition approved in 20112014 as
D3306 – 11.D3306–14. DOI: 10.1520/D3306-14.10.1520/D3306–19.
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’sstandard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3306 − 19
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 Con
...

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Standard Specification for Engine Coolant Grade Glycol

ABSTRACT
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.  
1.2 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. These types can be either redistilled or virgin.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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  • Technical specification
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ASTM
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).  
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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.  
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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  • Standard
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