Section 634. Mixed Type of Explosives Not to Be Used in Same Blast Hole.--Mixed types of explosives shall not be used in any blast hole, nor shall detonators made by different manufacturers be combined in the same blasting circuit.
Mixed Type of Explosives Not to Be Used in Same Blast Hole
Act 346 of 1965, § 634, under PENNSYLVANIA ANTHRACITE COAL MINE ACT.
Act 346 of 1965, § 634