ASTM D 4985 Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA)
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ASTM D 4985 Document Information:
Title
Standard Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA)
ASTM International
Publication Date:
Mar 1, 2009
Scope:
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).
NOTE 1—This specification is based on the knowledge of the
performance of engine coolants prepared from new or virgin
ingredients. A separate specification exists (D 6210) for
heavy-duty engine coolants which may be prepared from recycled or
reprocessed used coolant or reprocessed industrial-source ethylene
glycol.
Coolants meeting this specification require an initial charge of
a supplemental coolant additive (SCA) and require regular
maintenance doses of an SCA to continue the protection in certain
operating heavy-duty engine cooling systems, particularly those of
the wet cylinder liner-in-block design. The SCA additions are
defined by and are the primary responsibility of the engine
manufacturer or vehicle manufacturer. If they provide no
instructions, follow the SCA supplier's recommended
instructions.
The values stated in SI units are to be regarded as the
standard. The values given in parentheses are 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.
*A Summary of Changes section appears at the end of this
standard.
Keywords:
- coolant requiring SCA pre-charge
- engine coolant
- ethylene glycol
- heavy duty engine coolant
- heavy duty engine service
- low silicate engine coolant
- prediluted
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