As used in this act, the following words and phrases shall have the meanings respectively ascribed to them herein:

(a) “Agricultural liming materials” means a product whose calcium and magnesium compounds are capable of neutralizing soil acidity;

(b) “limestone” means a material consisting essentially of calcium carbonate or a combination of calcium carbonate with magnesium carbonate, which is capable of neutralizing soil acidity;

(c) “burnt lime” means a material made from limestone which consists essentially of calcium oxide or a combination of calcium oxide with magnesium oxide;

(d) “hydrated lime” means a material made from burnt lime which consists essentially of calcium hydroxide or a combination of calcium hydroxide and magnesium hydroxide;

(e) “marl” means a granular or loosely consolidated earthy material composed largely of sea shell fragments and calcium carbonate;

(f) “industrial by-product” means any industrial waste or by-product containing calcium or calcium and magnesium in forms that will neutralize soil acidity;

(g) “brand” means the term, designation, trademark, product name or other specific designation under which individual agricultural liming material is offered for sale;

(h) “fineness” means the percentage by weight of the material which will pass U. S. standard sieves of specified sizes;

(i) “label” means any written or printed matter on or attached to the package or on the delivery ticket which accompanies bulk shipments;

(j) “person” means an individual, partnership, association, firm or corporation; and

(k) “calcium carbonate equivalent” means the acid neutralizing capacity of an agricultural liming material expressed as weight percentage of calcium carbonate.