Words used in this act, unless otherwise expressly stated, or unless the context or subject matter otherwise requires, shall have the following meaning:
"Person" shall mean and include natural persons and partnerships, firms, associations, joint stock companies, syndicates and corporations and any receiver, trustee, conservator or other officer appointed pursuant to law by any court, State or Federal. The use of the singular number shall include the plural number.
"Retail dealer" any person operating a service station, filling station, store, garage or other place of business for the sale of motor fuel for delivery into the service tank or tanks of any vehicle propelled by an internal combustion engine.
"Motor fuel" shall mean (a) all products commonly or commercially known or sold as gasoline (including casinghead and absorption or natural gasoline), benzol, benzene, or naphtha regardless of their classification or uses; and (b) any liquid prepared, advertised, offered for sale or sold for use as or commonly and commercially used as a fuel in internal combustion engines, which when subjected to distillation in accordance with the standard method of test for distillation of gasoline, naphtha, kerosene and similar petroleum products (American Society of Testing Material Designation D-86) shows not less than ten per centum (10%) distilled (recovered) below three hundred forty-seven degrees (347`) Fahrenheit (one hundred seventy-five degrees (175`) Centigrade) and not less than ninety-five per centum (95%) distilled (recovered) below four hundred sixty-four degrees (464`) Fahrenheit (two hundred forty degrees (240`) Centigrade); and (c) any other product or liquid when sold for use as a fuel in any type of internal combustion engine furnishing power to operate a motor vehicle.
"Sale" shall have its ordinary meaning and, in addition, shall include any exchange, gift or other disposition; and "purchase" shall include any acquisition of ownership.
"Selling expense" includes all overhead and general business expense.
"Commissioner" shall mean the State Tax Commissioner.
N.J.S. § 56:6-1