"Gallon" means a liquid measure that is not corrected for temperature and that contains 231 cubic inches or the equivalent of 4 1/4 pounds of propane or 100 cubic feet of natural gas. The term includes "gross gallons".
N.H. Admin. Code § Saf-C 302.20
(See Revision Notes #1 and #2 at chapter heading for Saf-C 300) #10032, eff 11-22-11