For the purposes of this Section, the following words shall be defined as follows:
CORROSIVE: Any substance which in contact with living tissue causes destruction of tissue by chemical action; but does not refer to action on inanimate surfaces.
FLAMMABLE-COMBUSTIBLE: Any substance which has a flashpoint of above twenty degrees (20 ) to and including eighty degrees (80 ) Fahrenheit as determined by the Tagliabue Open Cup Tester, and "extremely flammable" means any substance which has a flashpoint at or below twenty (20) degrees Fahrenheit as determined by the Tagliabue Open Cup Tester, and "combustible" means any substance which has a flashpoint above eighty (80) degrees Fahrenheit to and including one hundred fifty (150) degrees, as determined by the Tagliabue Open Cup Tester.
HIGHLY TOXIC: Any substance which produces death within fourteen (14) days in at least half of a group of ten (10) or more laboratory white rats each weighing between two hundred (200) and three hundred (300) grams, when a single dose of fifty (50) milligrams or less per kilogram of body weight, is orally administered or when inhaled continuously for a period of one hour or less at an atmospheric concentration of two hundred (200) parts per million by volume or less of gas or vapor or two (2) milligrams per liter by volume or less of mist or dust, provided such concentration is likely to be encountered by man when the substance is used in any reasonably foreseeable manner, or which produces death within fourteen (14) days in at least half of a group of ten (10) or more rabbits tested in a dosage of two hundred (200) milligrams or less per kilogram of body weight, when administered by continuous contact with the bare skin for twenty four (24) hours or less.
IRRITANT: Any substance, not corrosive, which on immediate, prolonged or repeated contact with normal living tissue will induce local inflammatory reaction.
RADIOACTIVE SUBSTANCE: Any substance which emits ionizing radiation.
TOXIC: Any substance (other than an radioactive substance) which has the capacity to produce bodily injury or illness to man through ingestion, inhalation, or absorption through any body surface.
TRUCK: Every motor vehicle being, used or maintained for the transportation of property which includes any of the above-listed substances or any transported substances which are either in a frozen state or heated state, contact with which would destroy living tissue.