ASTM D3306-00a

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, D6210, and D6211 exist for heavy duty engine service.

General Information

• Status: Historical
• Publication Date: 09-Apr-2001
• ICS: 71.100.45 - Refrigerants and antifreezes
• Technical Committee: D15 - Engine Coolants and Related Fluids
• Drafting Committee: D15.07 - Specifications

Relations

• Replaced By: ASTM D3306-01 - Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
• Effective Date: 10-Apr-2001
• Referred By: ASTM D4725-15(2023) - Standard Terminology for Engine Coolants and Related Fluids
• Effective Date: 10-Apr-2001
• 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-Apr-2001
• Referred By: ASTM D2570-16 - Standard Test Method for Simulated Service Corrosion Testing of Engine Coolants
• Effective Date: 10-Apr-2001
• Referred By: ASTM D7715-12(2021) - Standard Specification for Fully-Formulated Glycerin Base Engine Coolant for Heavy-Duty Engines
• Effective Date: 10-Apr-2001
• Referred By: ASTM D6210-17 - Standard Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines<rangeref></rangeref >
• Effective Date: 10-Apr-2001
• Referred By: ASTM D1119-22 - Standard Test Method for Percent Ash Content of Engine Coolants
• Effective Date: 10-Apr-2001
• Referred By: ASTM D2847-22 - Standard Practice for Testing Engine Coolants in Car and Light Truck Service
• Effective Date: 10-Apr-2001
• 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-Apr-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: D 3306 – 00a
Standard Specification for
Glycol Base Engine Coolant for Automobile and Light-Duty
Service
This standard is issued under the fixed designation D 3306; 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 (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
concentrates are used at 40 to 70 % concentration by volume in
water, or when prediluted glycol base engine coolants (50 3
D 1120 Test Method for Boiling Point of Engine Coolants
volume % minimum) are used without further dilution, they
D 1121 Test Method for Reserve Alkalinity of Engine
will function effectively to provide protection against freezing, 3
Coolants and Antirusts
boiling, and corrosion.
D 1122 Test Method for Density and Relative Density of
1.2 The coolants governed by this specification are catego-
Engine Coolant Concentrates and Engine Coolants by the
rized as follows:
Hydrometer
Coolant Type Description
D 1123 Test Methods for Water in Engine Coolant Concen-
I Ethylene glycol base concentrate
trate by the Karl Fischer Reagent Method
II Propylene glycol base concentrate
III Ethylene glycol predilute (50 vol %)
D 1126 Test Method for Hardness in Water
IV Propylene glycol predilute (50 vol %)
D 1177 Test Method for Freezing Point of Aqueous Engine
Coolants
D 1193 Specification for Reagent Water
NOTE 1—This specification is based on the knowledge of the perfor-
D 1287 Test Method for pH of Engine Coolants and Anti-
mance of engine coolants prepared from new or virgin ingredients.
Separate specifications exist for engine coolants prepared from recycled or rusts
reprocessed used coolant or reprocessed industrial-source glycols.
D 1293 Test Methods for pH of Water
D 1384 Test Method for Corrosion Test for Engine Coolants
1.3 The values stated in SI units are to be regarded as the
in Glassware
standard. The values in parentheses are for information only.
D 1881 Test Method for Foaming Tendencies of Engine
1.4 This standard does not purport to address all of the
Coolants in Glassware
safety concerns, if any, associated with its use. It is the
D 1882 Test Method for Effect of Cooling System Chemical
responsibility of the user of this standard to establish appro-
Solutions on Organic Finishes for Automotive Vehicles
priate safety and health practices and determine the applica-
D 1888 Test Methods for Particulate and Dissolved Matter,
bility of regulatory limitations prior to use.
Solids, or Residue in Water
NOTE 2—This specification applies to automobiles and light duty
D 2570 Test Method for Simulated Service Corrosion Test-
service. Specifications D 4985, D 6210, and D 6211 exist for heavy duty
ing of Engine Coolants
engine service.
D 2809 Test Method for Cavitation Corrosion and Erosion-
2. Referenced Documents Corrosion Characteristics of Aluminum Pumps with En-
gine Coolants
2.1 ASTM Standards:
D 3321 Test Method for Use of the Refractometer for Field
D 512 Test Methods for Chloride Ion in Water
Test Determination of the Freezing Point of Aqueous
D 516 Test Methods for Sulfate Ion in Water
Engine Coolants
D 1119 Test Method for Percent Ash Content of Engine
D 3634 Test Method for Trace Chloride Ion in Engine
Coolants and Antirusts
Coolants
D 4327 Test Method for Anions in Water by Chemically
This specification is under the jurisdiction of ASTM Committee D15 on Engine Supressed Ion Chromatography
Coolants and is the direct responsibility of Subcommittee D15.07 on Specifications.
D 4340 Test Method for Corrosion of Cast Aluminum
Current edition approved September 10, 2000. Published November 2000.
Originally published as D 3306 – 74. Last previous edition D 3306 – 00.
Annual Book of ASTM Standards, Vol 11.01.
3 4
Annual Book of ASTM Standards, Vol 15.05. Discontinued—See 1990 Annual Book of ASTM Standards, Vol 11.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
D 3306
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
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
Undiluted 7.5 to 11 7.5 to 11
Chloride, ppm 25 max 25 max 25 max 25 max D 3634, D 5827
Water, mass % 5 max 5 max not applicable not applicable D 1123
B B B B
Reserve alkalinity, mL report report report report D 1121
C
Effect on automotive finish no effect no effect no effect no effect D 1882
A
Some precipitate may be observed at the end of the test. This should not be cause for rejection.
B
Value as agreed upon between the supplier and the customer.
C
Currently, many vehicle manufacturers prepare test panels using the specific paint finishes employed on their actual products. Coolant suppliers and vehicle
manufacturers should agree on the exact test procedures and acceptance criteria on an individual basis.
A
TABLE 3 Performance Requirements
Test Solution Concentration,
Property Specific Values ASTM Test Method
vol % Glycol
B
Corrosion in glassware D 1384 33
Weight loss, mg/specimen
copper 10 max
solder 30 max
brass 10 max
steel 10 max
cast iron 10 max
aluminum 30 max
C
Simulated service test D 2570 44
Weight loss, mg/specimen
copper 20 max
solder 60 max
brass 20 max
steel 20 max
cast iron 20 max
aluminum 60 max
Corrosion of Cast Aluminum Alloys at
2 D
Heat-Rejecting Surfaces, mg/cm /week 1.0 max D 4340 25
E
Foaming D 1881 33
Volume, mL 150 max
Break time, s 5 max
F
Cavitation-Erosion 8 min D 2809 17
Rating for pitting, cavitation, and erosion of the
water pump
A
For engine coolant concentrates, test solutions shall be prepared in accordance with the directions provided in the individual ASTM test methods noted. For prediluted
engine coolants, prepare test solutions using the directions provided in Footnotes B through F.
B
For prediluted coolants, prepare the test solution by mixing 67 volume % of the adjusted (see 4.6) prediluted product with 33 volume % ASTM Type IV reagent water.
Add 99 mg of sodium sulfate, 110 mg of sodium chloride, and 92 mg of sodium bicarbonate per litre of test solution.
C
For prediluted coolants, prepare the test solution by mixing 88 volume % of the adjusted (see 4.6) prediluted product with 12 volume % ASTM Type IV reagent water.
Add 83 mg of sodium sulfate, 92 mg of sodium chloride, and 77 mg of sodium bicarbonate per litre of test solution.
D
For prediluted coolants, prepare the test solution by mixing 50 volume % of the adjusted (see 4.6) prediluted product with 50 volume % ASTM Type IV reagent water.
Add 165 mg of sodium chloride per litre of test solution.
E
For prediluted coolants, prepare the test solution by mixing 67 volume % of the adjusted (see 4.6) prediluted product with 33 volume % ASTM Type IV reagent water.
F
For prediluted coolants, prepare the test solution by mixing 33 volume % of the adjusted (see 4.6) prediluted product with 67 volume % ASTM Type IV reagent water.
Add 123 mg of sodium sulfate, 137 mg of sodium chloride, and 115 mg of sodium bicarbonate per litre of test solution.
Alloys in Engine Coolants Under Heat-Rejecting Condi- D 4985 Specification for Low Silicate Ethylene Glycol
tions Base Engine Coolants for Heavy Duty Engines Requiring
3 3
D 4725 Terminology for Engine Coolants a Pre-Charge of Supplemental Coolant Additive (SCA)
D 3306
D 5223 Specification for Engine Coolant Grade Propylene tions (see Specification D 1193).
Glycol
NOTE 3—Prediluted coolants are intended for direct addition to an
D 5827 Test Method for Determination of Chloride in
engine cooling system with no further dilution. However, if circumstances
Engine Coolant by Ion Chromatography
require addition and prediluted aqueous engine coolant is not available,
D 5931 Test Method for Density and Relative Density of
use the appropriate engine coolant concentrate (Type I or II) diluted to 50
volume % with water of at least the quality outlined in Table X1.1.
Engine Coolant Concentrates and Aqueous Engine Cool-
ants by Digital Density Meter
3.6 When diluting engine coolant concentrates for actual
D 6210 Specification for Fully Formulated Ethylene Glycol service, use a municipal (treated) water, or a low-mineral
Base Engine Coolant for Heavy Duty Engines
content well water (see Appendix X1, Table X1.1). If such
D 6211 Specification for Fully Formulated Propylene Gly- water is not available, use deionized (demineralized) or dis-
col Base Engine Coolant for Heavy Duty Engines
tilled water. This procedure will minimize the formation of
E 1177 Specification for Engine Coolant Grade Ethylene hard water scale and avoid the introduction of mineral com-
Glycol
ponents, such as chlorides and sulfates, that can increase the
2.2 Other Documents corrosion rate of aluminum and iron.
SAE HS40 Maintenance of Automotive Engine Cooling
3.7 When installed in accordance with the vehicle manufac-
Systems turer’s recommendations and those on the product label, engine
ASTM MNL 6 Manual on the Selection and Use of Engine
coolant concentrates or prediluted glycol base engine coolants
Coolants and Cooling System Chemicals shall be suitable for use in a properly maintained cooling
system (Appendix X1) in normal light-duty service for a
3. General Requirements
minimum of one year without adversely affecting fluid flow
3.1 Engine coolant concentrates or prediluted glycol base
and heat transfer.
engine coolants shall be formulated with either et
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