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This specification covers the requirements for fully-formulated glycol base coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 to 60 % glycol concentration by volume in water of suitable quality, or when prediluted glycol base engine coolants (50 volume % minimum) are used without further dilution, they will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling. The coolant concentrate mixed with water or the prediluted coolant, when maintained with maintenance doses of supplemental coolant additives (SCA), shall be suitable for use in a properly maintained cooling system in normal service for a minimum of two years. In addition, the coolant concentrate or prediluted coolant shall provide protection in operating engines against cavitation corrosion (also termed liner pitting) and against scaling of internal engine hot surfaces. Hot surfaces typically are within the engine head, head spacer, upper cylinder liner, or liquid cooled exhaust manifold.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the requirements for fully-formulated glycol base coolants for cooling systems of heavy-duty engines. When concentrates are used at 40 to 60 % glycol concentration by volume in water of suitable quality, (see Appendix X1), or when prediluted glycol base engine coolants (50 volume % minimum) are used without further dilution, they will function effectively during both winter and summer to provide protection against corrosion, cavitation, freezing, and boiling.
1.2 This specification is intended to cover the requirements for engine coolants prepared from virgin or recycled ethylene or propylene glycol.
Note 1—Committee D15 has not substantially studied the impact of using recycled glycols from sources such as:
|• glycol bottoms|
|• polyester manufacturing waste|
|• aircraft and runway deicers|
|• medical waste|
1.3 The coolants governed by this specification are categorized as follows:
|I-FF||Ethylene glycol base concentrate|
|II-FF||Propylene glycol base concentrate|
|III-FF||Ethylene glycol predilute (50 vol %)|
|IV-FF||Propylene glycol predilute (50 vol %)|
1.4 Coolant concentrates meeting this specification do not require any addition of Supplemental Coolant Additive (SCA) until the first maintenance interval when a maintenance dose of SCA is required to continue protection in certain 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 instructions.
1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.
1.6 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D1126 Test Method for Hardness in Water
D1293 Test Methods for pH of Water
D3306 Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
D4327 Test Method for Anions in Water by Suppressed Ion Chromatography
D5828 Test Method for Compatibility of Supplemental Coolant Additives (SCAs) and Engine Coolant Concentrates
D7583 Test Method for John Deere Coolant Cavitation Test
Other StandardsFederalMethod2540B Total Dissolved Solids Dried at 103-105C
ICS Number Code 71.100.45 (Refrigerants and antifreezes)