401G Explosive Safety
Cardinal Rule - Answer- "Min-Min-Min"
Minimum number of people exposed
Minimum amount of explosives
Minimum amount of time
Personnel limits - Answer- Distinguish between supervisors, workers, casuals, and visitors
Limit / identify the "types" of authorized personnel...
401G Explosive Safety
Cardinal Rule - Answer- "Min-Min-Min"
Minimum number of people exposed
Minimum amount of explosives
Minimum amount of time
Personnel limits - Answer- Distinguish between supervisors, workers, casuals, and
visitors
Limit / identify the "types" of authorized personnel allowed in the area (Need to
know)
Casuals - Answer- Not normally part of the operation, but has duties that require
their presence (QA, medical, safety, inspection personnel)
Visitors - Answer- Non-essential personnel with limited access
Stop operations when visitors are present
General Explosive Safety Requirements - Answer- Includes safety topics, such as:
Explosive safety program elements
Explosive facility licenses
Explosive Site Planning
Quantity distance criteria
Storage and compatibility standards
Transportation
Found in DESR6055.09 and AFMAN91-201_TO 11A-1-33
All Personnel Explosive Safety - Answer- All personnel who work with explosives will
be:
Trained IAW AFI 91-202 (explosive safety training)
Qualified in the tasks to be performed
Supervisors, Explosive Safety - Answer- Must:
Be knowledgeable of all hazards involved in the operation
Convey emergency procedures to workers and visitors
Maintain strict housekeeping standards
Hazard Classes (HC) - Answer- Nine classes
U.S. Department of Transportation
AF works primarily with Class 1, Class 2, and Class 3
Class 1 Explosives
Class 2 Gases
Class 3 Flammable liquids
Hazard Class 1 (explosives) - Answer- Contains 6 divisions
HD 1.1 - 4000 ft
HD 1.2 - 2500 ft
HD 1.3 - 600 ft
, HD 1.4 - 300 ft
HD 1.5
HD 1.6
Each division helps store munitions with like explosive characteristics
Determines levels of protection for personnel and property from effects of fires and
explosions
Division 1 (HD 1.1) Mass Explosion - Answer- The most dangerous of all explosives.
Principle hazard (blast and mass-detonation) can be expected when a small portion
is initiated by any means
Described as "Mass Explosion
Division 2 (HD 1.2) Non-mass explosion, fragment producing - Answer- Principle
hazard of 1.2 is:
High speed fragments
Includes associated blast hazard
Described as "Non-Mass Explosion, Fragment Producing
Division 3 (HD 1.3) Mass fire, minor blast or fragment - Answer- Principle hazard of
1.3 is:
Items burn vigorously
Difficult to extinguish
Division 4 (HD 1.4) Moderate fire, no significant blast or fragment - Answer- Least
dangerous of all explosive HDs, but still very dangerous
Statistically the most explosive-related mishaps and injuries
Divisions HD 1.5 / HD 1.6 - Answer- They provide more handling safety while still
retaining target effects
HD 1.5 are known as: Very insensitive substances
If detonated, acts like HD 1.1
Difficult to initiate
HD 1.6 are known as: Extremely insensitive articles
Difficult to initiate
If detonated, acts like HD 1.2
High Explosives (HE) - Answer- HD 1.1 and 1.2 characterized as High Explosives
(HE)
HE are used to destroy things
HE munitions have a yellow marking
Low Explosives (LE) - Answer- HD 1.3 and 1.4 characterized as Low Explosives (LE)
LE are used to do work like:
Propelling things (rocket motor)
Produce gas pressure (impulse cartridge, opens bomb ejector rack)
LE munitions are usually designated by a brown marking
Inert munitions - Answer- (usually used for training) have a blue marking
Fire Symbols / Placards - Answer- Provide a general warning
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