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:

Note 1—This specification is based on the knowledge of the performance of engine coolants prepared from new or virgin ingredients. This specification shall also apply to engine coolants prepared using glycol generated from recycled or reprocessed used coolant or reprocessed industrial-source glycol, provided that said glycol meets the requirements of Specification E1177. Separate specifications (D6471 and D6472) exist for engine coolants prepared from recycled or reprocessed used coolant or reprocessed industrial-source glycol that does not meet the requirements established in Specification E1177. This specification shall also apply to glycol based engine coolants prepared using fully refined glycerin provided that said glycerin meets the requirements for Specification D7640.

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 glycol base engine coolant for automobiles and light duty service. Specifications D4985 and D6210 exist for heavy duty engine service.

TABLE 1 General Requirements

TABLE 2 Physical and Chemical Requirements for Concentrates

^A Type V engine coolant is ethylene glycol base containing glycerin. Other ingredients that do not meet Specifications E1177 and D7640 shall not be substituted in this blend.

^B For purposes of determining conformance with this specification, an observed value shall be rounded “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding method of Practice E29.

^C Test Methods D1177 and D6660 work with glycol/glycerin mixtures. Field test devices based on refractive index and density are under development.

^D Some precipitate may be observed at the end of the test. This should not be cause for rejection.

^E In case of dispute, D3634 shall be the preferred test method.

^F Value as agreed upon between the supplier and the customer.

^G 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.

TABLE 3 Physical and Chemical Requirements for Predilute

^A Type VI engine coolant is ethylene glycol base containing glycerin. Other ingredients that do not meet Specifications E1177 and D7640 shall not be substituted in this blend.

^B For purposes of determining conformance with this specification, an observed value shall be rounded “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding method of Practice E29.

^C Test Methods D1177 and D6660 work with glycol/glycerin mixtures. Field test devices based on refractive index and density are under development.

^D Some precipitate may be observed at the end of the test. This should not be cause for rejection.

^E In case of dispute, D3634 shall be the preferred test method.

^F Value as agreed upon between the supplier and the customer.

^G 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.

TABLE 4 Performance Requirements^A

^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 5.6) 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 5.6) 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 5.6) 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 5.6) prediluted product with 33 volume % ASTM Type II reagent water.

^F For prediluted coolants, prepare the test solution by mixing 33 volume % of the adjusted (see 5.6) 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.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D512 Test Methods for Chloride Ion In Water

D516 Test Method for Sulfate Ion in Water

D1119 Test Method for Percent Ash Content of Engine Coolants

D1120 Test Method for Boiling Point of Engine Coolants

D1121 Test Method for Reserve Alkalinity of Engine Coolants and Antirusts

D1122 Test Method for Density or Relative Density of Engine Coolant Concentrates and Engine Coolants By The Hydrometer

D1123 Test Methods for Water in Engine Coolant Concentrate by the Karl Fischer Reagent Method

D1126 Test Method for Hardness in Water

D1177 Test Method for Freezing Point of Aqueous Engine Coolants

D1287 Test Method for pH of Engine Coolants and Antirusts

D1293 Test Methods for pH of Water

D1384 Test Method for Corrosion Test for Engine Coolants in Glassware

D1881 Test Method for Foaming Tendencies of Engine Coolants in Glassware

D1882 Test Method for Effect of Cooling System Chemical Solutions on Organic Finishes for Automotive Vehicles

D2570 Test Method for Simulated Service Corrosion Testing of Engine Coolants

D2809 Test Method for Cavitation Corrosion and Erosion-Corrosion Characteristics of Aluminum Pumps With Engine Coolants

D3321 Test Method for Use of the Refractometer for Field Test Determination of the Freezing Point of Aqueous Engine Coolants

D3634 Test Method for Trace Chloride Ion in Engine Coolants

D4327 Test Method for Anions in Water by Suppressed Ion Chromatography

D4340 Test Method for Corrosion of Cast Aluminum Alloys in Engine Coolants Under Heat-Rejecting Conditions

D4725 Terminology for Engine Coolants

D4985 Specification for Low Silicate Ethylene Glycol Base Engine Coolant for Heavy Duty Engines Requiring a Pre-Charge of Supplemental Coolant Additive (SCA)

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 Coolants by Digital Density Meter

D6130 Test Method for Determination of Silicon and Other Elements in Engine Coolant by Inductively Coupled Plasma-Atomic Emission Spectroscopy

D6210 Specification for Fully-Formulated Glycol Base Engine Coolant for Heavy-Duty Engines

D6471 Specification for Recycled Prediluted Aqueous Glycol Base Engine Coolant (50 Volume % Minimum) for Automobile and Light-Duty Service

D6472 Specification for Recycled Glycol Base Engine Coolant Concentrate for Automobile and Light-Duty Service

D6660 Test Method for Freezing Point of Aqueous Ethylene Glycol Base Engine Coolants by Automatic Phase Transition Method

D7640 Specification for Engine Coolant Grade Glycerin

E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E394 Test Method for Iron in Trace Quantities Using the 1,10-Phenanthroline Method

E1177 Specification for Engine Coolant Grade Glycol

Other Documents

Keywords

engine coolant; engine coolant concentrate; ethylene glycol; glycerol; glycerine; light duty engine coolant; prediluted engine coolant; propylene glycol;  1,2,3-propane diol; Aqueous engine coolant; Ethylene glycol--specifications; Engine coolants/concentrates--specifications; Light duty engine service--specifications; Propylene glycol

ICS Code

ICS Number Code 71.100.45 (Refrigerants and antifreezes)

Citing ASTM Standards

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