(a) As used in this part, the term:

(1) "Brand" means an identification mark assigned to a processor and used to mark each treated pole, post or piling, timber, or other timber product.

(2) "Dealer" means any person, firm, or corporation who ships or brings into this state, for sale, any treated timber or timber product treated outside the state.

(3) "Preservative" means any chemical used in treating wood to retard or prevent deterioration or destruction caused by the action of insects, fungi, bacteria, or other wood-destroying organisms.

(4) "Timber" means sawed wood of five inches or more actual thickness.

(5) "Treated wood" means wood treated by the impregnation or application of chemical solutions or chemical mixtures for the purpose of retarding or preventing deterioration or destruction caused by insects, fungi, bacteria, or other wood-destroying organisms.

(b) Any term which is not defined in subsection (a) of this Code section shall have the definition ascribed to such term in the standards of the American Wood Preservers' Association, if such term is defined in such standards and if such definition is not otherwise in conflict with this part, as determined by the Commissioner.