California Code of Regulations › Title 8 - Industrial Relations › Division 1 - Department of Industrial Relations › Chapter 4 - Division of Industrial Safety › Subchapter 7 - General Industry Safety Orders › Group 18 - Explosive Materials › Article 113 - Explosive Materials › Section 5237 - Definitions

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
"Air Loader." A device for inserting explosive
						  materials into a bore hole or other cavity, using compressed air as the
						  propulsive force.
"Air Supply Lines." Pipe, hose or combination of pipe
						  and hose, that supplies compressed air to the air loader.
" ANFO. " An explosive material consisting of ammonium
						  nitrate and fuel oil.
"ATF." Bureau of Alcohol, Tobacco and Firearms, United
						  States Department of Treasury.
"Barricade--Artificial." An artificial mound or
						  revetted wall of earth of a minimum thickness of 3 feet at the top of the mound
						  or acceptable equivalent.
"Barricade--Natural." Natural features of the terrain
						  such as hills, or timber of sufficient density that the surrounding exposures
						  which require protection cannot be seen from the magazine when the trees are
						  bare of leaves.
"Barricaded." A building or structure containing
						  explosives effectively screened from another magazine, inhabited building,
						  railway, highway or work area either by a natural or by an artificial barricade
						  of such height that a straight line from the top of any sidewall of the
						  building, or structure, containing explosives to the eave line of any other
						  magazine, inhabited building or a point 12 feet about the center of a railway,
						  highway, or outside work area will pass through such intervening natural or
						  artificial barricade.
"Binary Components." The combination of two
						  non-explosive materials to form an explosive material.
"Blast Area." The area of a blast within the influence
						  of flying fragments, gases, and concussion.
"Blast Site." The area where explosive materials are
						  handled during loading, including the perimeter of blast holes and 50 feet in
						  all directions from loaded holes or holes to be loaded.
"Blaster, Licensed." Any competent person designated to
						  supervise blasting operations and in possession of a current blasters license
						  issued by the Division.
"Blasting Accessories." Equipment used when loading and
						  firing explosives. It does not include explosive materials.
"Blasting Agents." Any material or mixture consisting
						  of a fuel and oxidizer, intended for blasting and not otherwise classified as
						  an explosive, provided that the finished product, as mixed and packaged for
						  shipment, cannot be detonated by means of a No. 8. test blasting cap when
						  unconfined.
"Blasting Cap." See "Detonator."
"Blasting Circuit." A circuit used to initiate
						  explosive materials.
"Blasting Machine." An electrical device designed to
						  fire electric detonators.
"Blasting Mat." A heavy mat of woven rope, steel wire,
						  or chain, or improvised from timber, logs, brush, or other materials placed
						  over loaded holes to minimize the amount of rock and other debris that might be
						  thrown into the air.
"Blasting Operation." Includes, but is not limited to
						  use, on-site transportation and storage of commercial explosives, blasting
						  agents, and other materials used in blasting.
"Blasting Shelter." A shelter for the protection of
						  employees while blasting.
"Bullet Resistant." Magazine walls or doors of
						  construction resistant to penetration of a bullet of 150-grain M2 ball
						  ammunition having a nominal muzzle velocity of 2700 feet per second fired from
						  a .30 caliber rifle from a distance of 100 feet perpendicular to the wall or
						  door.
"Bus Wires." Wires in the blasting circuit to which the
						  leg wires of electric blasting caps are attached for parallel electric
						  blasting.
"Cap Crimper." A tool specially designed to securely
						  crimp the metallic shell of a fuse detonator or igniter cord connector to a
						  section of inserted safety fuse.
"Capped Fuse." A length of safety fuse to which a
						  blasting cap has been attached.
" Car. " Wheeled conveyance for use on rails, whether
						  hand trammed or included in a train.
"Competent Person." One who is capable of identifying
						  existing and predictable hazards in the surroundings or working conditions
						  which are unsanitary, hazardous, or dangerous to employees, and who has
						  authorization to take prompt corrective measures to eliminate them.
"Connecting Wires." Wires used to extend the leading
						  (firing) line or leg wires in an electric blasting circuit.
"Coyote Hole." An underground tunnel-like chamber into
						  which explosives are placed for primary blasting.
"Deflagration." A rapid chemical reaction in which the
						  output of heat is sufficient to enable the reaction to proceed and be
						  accelerated without input of heat from another source. Deflagration is a
						  surface phenomenon with the reaction products flowing away from the unreacted
						  material along the surface at subsonic velocity. The effect of a true
						  deflagration under confinement is an explosion. Confinement of the reaction
						  increases pressure, temperature, and rate of reaction, and may cause transition
						  into a detonation.
"Detonating Cord." A flexible cord containing a center
						  core of high explosives.
"Detonation." An explosive reaction that moves through
						  an explosive material at a velocity greater than the speed of sound in the
						  material.
"Detonator." Any device containing an initiating or
						  primary explosive that is used for initiating detonation in another explosive
						  material. Detonators were formerly called blasting caps and include:
(A) Fuse caps or ordinary blasting caps which
						are initiated by safety fuse.
(B)
						Electric blasting caps which are initiated by means of an electric
						current.
(C) Electric delay
						blasting caps are electric detonators which introduce a predetermined lapse of
						time between the application of electric current and the detonation of the base
						charge in the detonator.
(D) Shock
						tube, gas initiation, or miniaturized detonating cord blasting caps are
						detonators that are designed to be initiated by the signal, flame or detonation
						impulse from shock tube, gas filled tubes, or miniaturized detonating cord.
						Like electric blasting caps, they may incorporate a delay element to produce a
						predetermined lapse of time between receipt of the energy signal and the firing
						of the base charge in the detonator.
"DOD." U. S. Department of Defense.
"Electric Blasting Cap." See "Detonator".
"Electric Delay Blasting Caps." See "Detonator".
"Nonelectric Delay Blasting Cap." See
						  "Detonator".
"Emulsion." An explosive material containing
						  proportional amounts of an oxidizer dissolved in water droplets surrounded by
						  immiscible fuel or droplets of an immiscible fuel surrounded by water
						  containing substantial amounts of oxidizer.
"Explosive Materials." The term includes, but is not
						  limited to, dynamite and other high explosives; slurries, emulsions, and water
						  gels; black powder and pellet powder; initiating explosives; detonators;
						  blasting caps; safety fuse; squibs; detonating cord; igniter; igniter cord;
						  pyrotechnic devices; blasting agents; and propellants.
(A) "Explosives, Chlorates." Explosive
						materials that contain over one percent (1%) chlorate by weight, in the total
						mix.
(B) "Explosives,
						Perchlorates." Explosive materials that contain over one percent (1%)
						perchlorates by weight, in the total mix.
"Explosives." Any chemical compound, mixture or device,
						  the primary or common purpose of which is to function by explosion.
(A) "Classes."
(1) High explosives. Explosive materials
						which can be caused to detonate by means of an initiator test detonator when
						unconfined (for example, dynamite, flash powders, and bulk salutes).
(2) Low explosives. Explosive materials which
						can be caused to deflagrate when confined (for example, black powder, safety
						fuses, igniters, igniter cords, fuse lighters, and "special
						fireworks.")
(3) Blasting Agent.
						Any material or mixture, consisting of fuel and oxidizer which cannot be
						detonated by means of a No. 8 testing blasting cap when
						unconfined.