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ASTM D5752-04

(Specification)

Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty Engines

Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty Engines

SCOPE
1.1 This specification covers the general, physical, chemical, and performance requirements for Supplemental Coolant Additives (SCAs) at a precharged level in the cooling systems of heavy-duty engines.
Note 1—After precharging, SCAs are customarily used periodically to service cooling systems at 1/4 to 1/3 the precharged dosage to compensate for additives lost through dilution and depletion.
1.2 The SCA products meeting this specification are intended for use with water or recommended dilutions of coolant concentrates or prediluted engine coolants. Engine coolant products shall be of the low-silicate type and, if ethylene glycol based, shall meet Specification D 4985. Propylene glycol base low-silicate-type coolant products may also be used, if these materials meet the chemical and performance requirements of Specification D 4985.
1.3 The SCA concentrate before dissolution may be in either liquid, solid, or slurry form. The form is as agreed upon between the manufacturer and the user.
1.4 The values stated in SI units are to be regarded as standard. The inch-pound units in parentheses are approximate equivalents provided for information only.
1.5 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. Specific precautionary statements are given in 4.1.

General Information

Status
Historical
Publication Date
30-Apr-2004
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 D5752-98 - Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty Engines
Effective Date
01-May-2004
Replaced By
ASTM D5752-04a - Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty Engines
Effective Date
01-Oct-2004

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ASTM D5752-04 - Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty EnginesASTM D5752-04 - Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty Engines
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ASTM D5752-04 - Standard Specification for Supplemental Coolant Additives (SCAs) for Use in Precharging Coolants for Heavy-Duty Engines
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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 5752 – 04
Standard Specification for
Supplemental Coolant Additives (SCAs) for Use in
1
Precharging Coolants for Heavy-Duty Engines
This standard is issued under the fixed designation D 5752; 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.
1. Scope D 1121 Test Method for Reserve Alkalinity of Engine
Coolants and Antirusts
1.1 This specification covers the general, physical, chemi-
D 1126 Test Method for Hardness of Water
cal, and performance requirements for Supplemental Coolant
D 1193 Specification for Reagent Water
Additives (SCAs) at a precharged level in the cooling systems
D 1287 Test Method for pH of Engine Coolants and Anti-
of heavy-duty engines.
rusts
NOTE 1—After precharging, SCAs are customarily used periodically to
D 1293 Test Methods for pH of Water
1 1
service cooling systems at ⁄4 to ⁄3 the precharged dosage to compensate
D 1384 Test Method for Corrosion Test for Engine Coolants
for additives lost through dilution and depletion.
in Glassware
1.2 The SCA products meeting this specification are in-
D 1881 Test Method for Foaming Tendencies of Engine
tended for use with water or recommended dilutions of coolant
Coolants in Glassware
concentrates or prediluted engine coolants. Engine coolant
D 1882 Test Method for Effect of Cooling System Chemical
products shall be of the low-silicate type and, if ethylene glycol
Solutions on Organic Finishes for Automotive Vehicles
based, shall meet Specification D 4985. Propylene glycol base
D 1888 Test Methods for Particulate and Dissolved Matter
low-silicate-type coolant products may also be used, if these
in Water
materials meet the chemical and performance requirements of
D 2570 Test Method for Simulated Service Corrosion Test-
Specification D 4985.
ing of Engine Coolants
1.3 The SCA concentrate before dissolution may be in either
D 2809 Test Method for Cavitation Corrosion and Erosion-
liquid, solid, or slurry form. The form is as agreed upon
Corrosion Characteristics of Aluminum Pumps with En-
between the manufacturer and the user.
gine Coolants
1.4 The values stated in SI units are to be regarded as
D 3634 Test Method for Trace Chloride Ion in Engine
standard. The inch-pound units in parentheses are approximate
Coolants
equivalents provided for information only.
D 4327 Test Method for Anions in Water by Chemically
1.5 This standard does not purport to address all of the
Suppressed Ion Chromatography
safety concerns, if any, associated with its use. It is the
D 4340 Test Method for Corrosion of Cast Aluminum
responsibility of the user of this standard to establish appro-
Alloys in Engine Coolants Under Heat-Rejecting Condi-
priate safety and health practices and determine the applica-
tions
bility of regulatory limitations prior to use. Specific precau-
D 4985 Specification for Low Silicate Ethylene Glycol
tionary statements are given in 4.1.
Base Engine Coolant for Heavy Duty Engines Requiring
an Initial Charge of Supplemental Coolant Additive (SCA)
2. Referenced Documents
D 5827 Test Method for Analysis of Engine Coolant for
2
2.1 ASTM Standards:
Chloride and Other Anions by Ion Chromatography
D 512 Test Method for Chloride Ion in Water
D 5828 Test Method for Compatibility of Supplemental
D 516 Test Method for Sulfate Ion in Water
Coolant Additives (SCAs) and Engine Coolant Concen-
D 1119 Test Method for Ash Content of Engine Coolants
trates
and Antirusts
D 6129 Test Method for Silicon in Engine Coolant Concen-
trates by Atomic Absorption Spectroscopy
1
D 6130 Test Method for the Determination of Silicon and
This specification is under the jurisdiction of ASTM Committee D15 on Engine
Coolants and is the direct responsibility of Subcommittee D15.07 on Specifications.
Other Elements in Engine Coolant by Inductively Coupled
Current edition approved May 1, 2004. Published June 2004. Originally
Plasma-Atomic Emission Spectroscopy
approved in 1995. Last previous edition approved in 1998 as D 5752 - 98.
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.
1

---------------------- Page: 1 ----------------------
D5752–04
TABLE 1 Composition of Test Solutions for Table 2 Performance
D 6471 Specification for Recycled Prediluted Aqueous Gly-
A
Requirements
col Base Engine Coolant (50 % Minimum) for Automobile
Test Method SCA Concentrate Solvent
...

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SCOPE
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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1.2 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.  
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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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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.  
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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.  
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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.
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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.  
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).  
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