053-5 Wyo. Code R. § 77.1304 - Blasting agents; special provisions
(a) Sensitized
ammonium nitrate blasting agents, and the components thereof prior to mixing,
shall be mixed and stored in accordance with the recommendations in Bureau of
Mines Information Circular 8179, "Safety Recommendations for Sensitized
Ammonium Nitrate Blasting Agents," or subsequent revisions.
(b) Where pneumatic loading is employed,
before any type of blasting operation using blasting agents is put into effect,
an evaluation of the potential hazard of static electricity shall be made.
Adequate steps, including the grounding and bonding of the conductive parts of
pneumatic loading equipment, shall be taken to eliminate the hazard of static
electricity before blasting agent use is commenced.
(c) Pneumatic loading equipment shall not be
grounded to waterlines, airlines, rails, or the permanent electrical grounding
systems.
(d) Hoses used in
connection with pneumatic loading machines shall be of the semiconductive type,
having a total resistance low enough to permit the dissipation of static
electricity and high enough to limit the flow of stray electric currents to a
safe level. Wire-countered hose shall not be used because of the potential
hazard from stray electric currents.
Notes
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