02 NCAC 09F .0303 CONCENTRATES
(a) Methoxy propanol base engine coolant concentrate shall consist of:
(1) essentially 1‑methoxy, 2‑propanol;
(2) suitable inhibitors;
(3) a foam suppressor; and
(4) sufficient water to dissolve the additives and provide a packaged product that can be poured at temperatures as low as 0 degrees F. (‑17.8 degrees C.).
(b) Methoxy propanol base engine coolant concentrate may include other glycols such as alkalene and polyalkalene up to a maximum of 15 percent of the total glycol content so long as the chemical and physical properties in 02 NCAC 09F .0305 and 02 NCAC 09F .0306 are met, as applicable.
History Note: Authority G.S. 106‑579.7;
Eff. February 1, 1982;
Pursuant to G.S. 150B-21.3A, rule is necessary without substantive public interest Eff. March 22, 2015.