All metal magazines of this class shall have sides, bottom, and cover constructed of sheet metal, and shall be lined with three-eighths-inch plywood or equivalent. Edges of metal covers shall overlap sides at least 1 inch. Black powder when stored in magazines with other explosives shall be stored separately. Black powder stored in kegs shall be stored on ends, bungs down, or on side, seams down.
Corresponding grades and brands shall be stored together in such a manner that brands and grade marks show. All stocks shall be stored so as to be easily counted and checked. Packages of explosives shall be piled in a stable manner. When any kind of explosive is removed from a magazine for use, the oldest explosive of that particular kind shall always be taken first.
Tools used for opening packages of explosives shall be constructed of nonsparking materials, except that metal slitters may be used for opening fiberboard boxes. A wood wedge and a fiber, rubber, or wood mallet shall be used for opening or closing wood packages of explosives.
Opened packages of explosives shall be securely closed before being returned to a magazine. Brooms and other cleaning utensils shall not have any spark-producing metal parts. Sweepings from floors of magazines shall be properly disposed of. Magazine floors stained with nitroglycerin shall be cleaned according to instructions by the manufacturer.
Only experienced persons shall be allowed to do the work of destroying explosives. In making outside repairs, if there is a possibility of causing sparks or fire the explosives shall be removed from the magazine.
Explosives removed from a magazine under repair shall either be placed in another magazine or placed a safe distance from the magazine where they shall be properly guarded and protected until repairs have been completed, when they shall be returned to the magazine.
The land surrounding a magazine shall be kept clear of all combustible materials for a distance of at least 25 feet.
Combustible materials shall not be stored within 50 feet of magazines. Caps recovered from blasting misfires shall not be reused. Such explosives and caps shall then be disposed of in the manner recommended by the manufacturer. In the event of breakdown or collision the local fire and police departments shall be promptly notified to help safeguard such emergencies.
Explosives shall be transferred from the disabled vehicle to another only, when proper and qualified supervision is provided. If vehicles do not have a closed body, the body shall be covered with a flameproof and moistureproof tarpaulin or other effective protection against moisture and sparks.
All vehicles used for the transportation of explosives shall have tight floors and any exposed spark-producing metal on the inside of the body shall be covered with wood or other nonsparking materials to prevent contact with packages of explosives. Packages of explosives shall not be loaded above the sides of an open-body vehicle. Class B explosives. Explosives, Class B, and quantity. Explosives B Red letters on white background. Oxidizing material blasting Oxidizers Yellow letters agents, ammonium nitrate, etc.
The front marking or placard may be displayed on the front of either the truck, truck body, truck tractor or the trailer. Refer to Extinguishers shall be examined periodically by a competent person. This attendant shall have been made aware of the class of the explosive material in the vehicle and of its inherent dangers, and shall have been instructed in the measures and procedures to be followed in order to protect the public from those dangers.
He shall have been made familiar with the vehicle he is assigned, and shall be trained, supplied with the necessary means, and authorized to move the vehicle when required. Department of Transportation regulations. Where routes through congested areas have been designated by local authorities such routes shall be followed.
No person shall be allowed to handle explosives while under the influence of intoxicating liquors, narcotics, or other dangerous drugs. Verbal notice shall be confirmed with written notice. These precautions shall include:. In opening kegs or wooden cases, no sparking metal tools shall be used; wooden wedges and either wood, fiber or rubber mallets shall be used.
Nonsparking metallic slitters may be used for opening fiberboard cases. Violent tamping shall be avoided. Primed cartridges shall not be tamped. The usage rate is roughly , caps per year M6 - 40 thousand and M7 - 60 thousand.
Lead is both an occupational and an environmental issue, and elimination of lead is of significant importance to the Department of Defense DoD.
Lead azide and lead styphnate are lead-based compounds that incur extensive shipping and disposal requirements, thus driving lifecycle costs. Lead-based materials are well established to cause environmental and health related problems. The density of steel is about three times that of aluminum, and steel fragments are larger than those produced from aluminum cups which disintegrate in explosions into very small particles.
This improved performance should be useful in military and aerospace applications and in such specialized industries as mining and exploration for oil. What is claimed is: 1.
In a blasting cap comprising an aluminum shell in the form of a tube, one end thereof being the output end terminating in a face, the output end containing a detonating agent therein which communicates with means for igniting the detonating agent, the improvement therein comprising a flat, steel foil having a thickness from about 0.
The blasting cap of claim 1, wherein the flat, steel foil has a thickness of about 0. The blasting cap of claim 1, wherein the tube is encased in a metal block which has an opening or port therein which exposes the face, the flat, steel foil being bonded across the port in an alignment which is perpendicular to the longitudinal axis of the tube.
USA en. Ignition module for explosive content detonator, method and equipment for making a detonator equipped with same. USB2 en. Initiation devices, initiation systems including initiation devices and related methods. Explosive device containing charge of elongated crystals and an exploding bridgewire. Protective arrangement against projectiles, particularly hollow explosive charge projectiles. GBA en. EPA1 en. May et al. Electrical detonators have a fuse material that burns when high voltage is applied to initiate the primary high explosive.
Percussion detonators contain abrasive grit and primary high explosive in a sealed container that is activated by a firing pin. The impact force of the firing pin is sufficient to initiate the ballistic sequence that is then transmitted to the detonating cord.
Several safety systems are used in conjunction with detonators to avoid accidental firing during rig-up or rig-down.
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