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Questions and Answers
What is the primary purpose of an Explosive?
A detonation is a subsonic pressure wave.
False
What type of material must tools / implements be made of when used within 10 ft of a magazine?
wood, copper, brass, or other non-sparking material
A magazine for storing explosives must be ___________ against theft and secured with no exposure to flame, heat, sparks, impact, or smoking.
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Match the type of magazine with its description:
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Who must be notified in case of loss or theft of explosives?
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Daily transactions are kept for each magazine and must be recorded at the end of each month.
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The Explosives Certificate of Competency, Limited to Research and Development is limited to ___________ lbs / kg of explosives.
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What is the primary difference between High and Low explosives?
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According to OSHA, an explosives incident resulting in hospitalization must be reported within 24 hours.
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What is the purpose of the "Min Min Min" rule in explosives handling?
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A chemical explosion occurs when a compound is ignited by ______________________.
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What type of clothing should be avoided when handling explosives because it can generate static electricity?
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According to DOT, an explosives incident resulting in property damage over $50,000 must be reported.
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Match the following explosives with their corresponding classification:
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What should be done in case of an explosive misfire?
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Primary explosives are very sensitive to things like ______________________.
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What type of personal protective equipment (PPE) is required for Pyro Trigger Test?
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Study Notes
Reporting Incidents
- OSHA reporting: 8 hours for death, 24 hours for hospitalization, loss of eye, or amputation
- DOT reporting: death, hospitalization, property damage over $50,000, public evacuation over 1 hour, or transport artery closure over 1 hour
Explosive Types
- Mechanical, nuclear, electrical, and chemical
- Chemical explosives: a mixture of materials that can cause an explosion
- Chemical explosion: when a compound is ignited by heat, shock, impact, and/or friction
ATF Classification
- High explosives: detonate rapidly, creating a supersonic shock wave (e.g., TNT)
- Low explosives: deflagrate slowly, creating a subsonic shock wave (e.g., black powder)
- Blasting Agents: a chemical mixture of fuel and oxidizer, not classified as an explosive (e.g., ammonium nitrate/fuel oil)
Explosives Information
- Primary explosives: very sensitive to impact, friction, heat, static electricity
- Secondary explosives: less sensitive, may need a Primary explosive to detonate
- Tertiary explosives: need a Primary and/or Secondary to be set off
Safety Precautions
- Minimize use, quantity, and personnel present (Min Min Min)
- Proper PPE (personal protective equipment) must always be used
- Non-static clothing: avoid nylon or wool
- Minimize people in the test area
- Test chamber design: explosives cannot be actuated with the door open
Fire Procedures
- If no explosives or magazine involved, attempt to put out the fire safely
- Leave room, trigger alarm, contact fire department, and have someone meet them
Improper Ignition Procedures
- Flame-resistant lab coat, heavy gloves, and place spent igniter in a non-static container
- Spray pyrotechnic material with water, wipe contaminated surfaces, and place contents in a sealable, non-static container
Explosive Misfire Procedures
- Evacuate the area, wait at least 1 hour, and remove the unexploded item with long-handled tongs and place in a non-static generating container filled with water
- Soak for 48 hours, then dispose of the item
Shipping Actuators or Airbag Assemblies
- Class 1, 4G (UN0503 Safety Devices, Pyrotechnic) or Class 9 (UN 326S Safety Devices, Electrically Initiated)
- Actuators: UN Number - 0503, Proper Shipping Name - Igniters, Transportation Hazard Class - 1.4G, Hazard Label - Explosive 1.4
- Airbag assemblies: UN Number - 3268, Proper Shipping Name - Air Bag Inflator, Transportation Hazard Class - 9, Hazard Label - Safety Devices, Electrically initiated
Initiator Disposal
- Unused initiators: contains Perchlorate, classified as D00S RCRA hazardous waste
- Used initiators: most likely has Perchlorate residue, perchlorate and its salts
Massachusetts Regulations
- Explosives Certificate of Competency, Limited to Research and Development
- Limited to 50 lbs / 22.7 kg of explosives
- Magazines for storing explosives: 5 types, including Type 2 portable indoor and outdoor style
- Portable Magazines: locked and secured against theft, no exposure to flame, heat, sparks, impact, or smoking
- Daily transactions recorded, including quantity received, removed, and remaining
- Fire Marshal must be provided with transaction records if requested
- Magazines inspected at a maximum interval of 7 days
Tools and Implements
- Within 10 ft / 3 m of a magazine, use wood, copper, brass, or other non-sparking materials
- Box cutters can have a steel blade
Loss/Theft of Explosives
- Notify ATF by phone and form 5400.5, as well as local Fire Marshal and police department
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Description
Learn about the reporting requirements for explosives incidents resulting in death, property damage, hospitalization, or other severe consequences, as per OSHA and DOT regulations.