Historical
ASTM D3306-11
Standard Specification for Glycol Base Engine Coolant for Automobile and Light-Duty Service
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.
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ASTM International [astm]
ASTM International [astm]