ASTM D8565-24 燃料电池电动汽车用乙二醇基冷却剂标准规范

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Designation: D8565 −24
Standard Speciﬁcation for
Glycol-Based Coolants for Fuel Cell Electric Vehicles
1
This standard is issued under the ﬁxed designation D8565; 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 fully
formulated glycol-based coolants used in a fuel cell electric
vehicle (FCEV).
1.2 Coolants are designed for use in systems where the
coolant is in contact with the fuel cell stack.
1.3 The coolant may be used in systems designed for use in
a fuel cell vehicle equipped with an ion exchange resin to
maintain low electrical conductivity.
1.4 Coolants in this speciﬁcation shall be used as supplied
and need no further dilution by the user.
1.5 Coolants shall protect against corrosion, freezing, and
overheating.
1.6 Coolants may circulate within the vehicle fuel cell stack,
battery, or other vehicle components, or may circulate through
a cooling plate heat exchanger used to remove heat from
batteries and other electrical components. Cooling plates con-
sist of a metal plate constructed with passages for the coolant
to circulate.
1.7 Coolants manage heat loads within the vehicle, prevent
thermal runaway, and may serve to either cool or heat the
batteries or electrical components.
1.8 Coolants shall be fully compatible with all system
components in which they are in contact, including metals,
polymers, and elastomers.
1.9 Coolants shall not be mixed with or contaminated by a
different coolant type.
1.10 Coolants may be used in non-vehicle applications. The
requirements for non-vehicle applications are not addressed by
this standard.
1.11 Units—The values stated in SI units are to be regarded
as standard.
1.12 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 appro-
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
1.13 This international standard was developed in accor-
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
2
D445 Test Method for Kinematic Viscosity of Transparent
and Opaque Liquids (and Calculation of Dynamic Viscos-
ity)
D1120 Test Method for Boiling Point of Engine Coolants
D1123 Test Methods for Water in Engine Coolant Concen-
trate by the Karl Fischer Reagent Method
D1125 Test Methods for Electrical Conductivity and Resis-
tivity of Water
D1177 Test Method for Freezing Point of Aqueous Engine
Coolants
D1287 Test Method for pH of Engine Coolants and Antirusts
D1881 Test Method for Foaming Tendencies of Engine
Coolants in Glassware
D4725 Terminology for Engine Coolants and Related Fluids
D5827 Test Method for Analysis of Engine Coolant for
Chloride and Other Anions by Ion Chromatography
D5931 Test Method for Density and Relative Density of
Engine Coolant Concentrates and Aqueous Engine Cool-
ants by Digital Density Meter
D6130 Test Method for Determination of Silicon and Other
Elements in Engine Coolant by Inductively Coupled
Plasma-Atomic Emission Spectroscopy
D6660 Test Method for Freezing Point of Aqueous Ethylene
Glycol Base Engine Coolants by Automatic Phase Tran-
sition Method
D7896 Test Method for Thermal Conductivity, Thermal
Diffusivity, and Volumetric Heat Capacity of Engine
1
This speciﬁcation is under the jurisdiction of ASTM Committee D15 on Engine
Coolants and Related Fluids and is the direct responsibility of Subcommittee
D15.26 on Electric Vehicle Coolants.
Current edition approved May 15, 2024. Published May 2024. DOI: 10.1520/
D8565-24.
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
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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.
1

Coolants and Related Fluids by Transient Hot Wire Liquid
Thermal Conductivity Method
D8485 Test Method for Corrosion Test for Electric Vehicle
Coolants in Glassware
E29 Practice for Using Signiﬁcant Digits in Test Data to
Determine Conformance with Speciﬁcations
3. Terminology
3.1 For deﬁnitions of general terms used in Committee D15
on Engine Coolants and Related Fluids standards, refer to
Terminology D4725.
3.2 Deﬁnitions of Terms Speciﬁc to This Standard:
3.2.1 cooling plate, n—a heat exchanger used to dissipate
heat from batteries and other electrical components.
3.2.2 electric vehicle (EV), n—a motor vehicle that uses an
electric motor as a means of propulsion.
3.2.3 fuel cell electric vehicle (FCEV), n—an electric ve-
hicle where the primary source of electricity is produced from
a fuel cell stack.
4. General Requirements
4.1 Coolant shall be formulated with either 1,2-ethanediol;
1,2, propanediol; or 1,3 propanediol, and water.
4.2 Coolants may contain up to 50 % water.
4.3 Coolants shall have an electrical conductivity that does
not exceed 5 µS ⁄cm at 25 °C.
5. Detailed Requirement
5.1 Coolants shall meet the physical and chemical require-
ments of Table 1.
5.2 Coolants shall meet the performance requirements of
Table 2 and Table 3.
5.3 The requirements prescribed are for the coolant used in
vehicle cooling systems.
5.4 Coolants shall be used as supplied and need no further
dilution by the user.
5.5 Additional requirements may be speciﬁed by the cus-
tomer.
6. Labeling
6.1 It is recommended that all product packaging be labeled
with “Do not add water.”
7. Keywords
7.1 electrical conductivity; fuel cell; fuel cell stack
TABLE 1 Physical and Chemical Requirements
A,B
NOTE 1—Speciﬁc heat capacity is calculated from volumetric heat capacity and density.
Substance/ Property Units Limits ASTM Test Methods
Water Content Mass % 50 max D1123
Electrical Conductivity, 25 °C µS/cm 5 max D1125
Freeze Point °C –30 max
C
D1177,
D
D6660
Boiling Point °C 105 min
E
D1120
Kinematic Viscosity at –20 °C mm
2
/s report D445
Density at 20 °C kg/m
3
report D5931
Speciﬁc Heat Capacity, 20 °C (Note 1)kJ/(kg·K) 2.2 min D7896
Thermal Conductivity, 20 °C W/m·K 0.15 min D7896
Chloride mg/kg 5 max D5827
pH pH report D1287
A
For values listed in this table, unless otherwise speciﬁed by the test method, products shall be tested undiluted.
B
For purposes of determining conformance with this speciﬁcation, rounding shall be done in accordance with Practice E29.
C
Maximum freeze point shall be –27.8 °C for 1,3-propanediol-based ﬂuids.
D
In cases of dispute, Test Method D1177 shall be the preferred test method.
E
Minimum boiling point shall be 102 °C for 1,3-propanediol-based ﬂuids.
D8565 − 24
2

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned
in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk
of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ﬁve years and
if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards
and should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the
responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should
make your views known to the ASTM Committee on Standards, at the address shown below.
This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,
United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above
address or at 610-832-9585 (phone), 610-832-9555 (fax), or service@astm.org (e-mail); or through the ASTM website
(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222
Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http://www.copyright.com/
TABLE 2 Performance Requirements for Coolants
NOTE 1—Coolant shall be tested as supplied without further dilution.
NOTE 2—Additional metals may be evaluated and reported at customer’s request.
NOTE 3—Additional metals may be evaluated and reported at the customer’s request.
Property Units Speciﬁc Values ASTM Test Method Test Solution Concentration
Corrosion in Glassware
Weight loss
Stainless Steel SUS304 mg/specimen 10 max D8485 As supplied
Aluminum A3003 mg/specimen 30 max D8485 As supplied
Copper
A
mg/specimen report D8485 As supplied
Electrical Conductivity at 25 °C before and after Glassware Corrosion Test
Electric Conductivity at 25 °C µS/cm report D1125
Metal Analysis After Glassware Corrosion Test
Aluminum mg/kg (ppm) report D6130
Copper mg/kg (ppm) report D6130
Iron mg/kg (ppm) report D6130
A
Inclusion of copper shall be determined by customer.
TABLE 3 Additional Requirements
Substance/ Property Units All Coolant Types ASTM Test Methods
Foaming Volume mL 150 max D1881
Foaming Break Time s 5 Max D1881
D8565 − 24
3

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ASTM D8565-2024 Standard Specification for Glycol-Based Coolants for Fuel Cell Electric Vehicles 燃料电池电动汽车用乙二醇基冷却剂标准规范

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