(1) “Explosives” mean any chemical compound or other substance intended for the purpose of producing an explosion, or that contains oxidizing and combustible units or other ingredients in such proportions or quantities that ignition by detonation may produce an explosion, capable of causing injury to persons or damage to property.

(2) “Blasting Operation” means the use of explosives in the blasting of stone, rock, ore or any other natural formation, or in any construction or demolition work in which six or more employes are engaged, but shall not include its use in agricultural operations or in anthracite or bituminous coal mines or strip mining operations.

(3) “Blaster” means a person licensed to fire or detonate explosives in blasting operations.