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Table 12-5.Hazard Class 1 Division Designators and Types of Hazards
Figure 12-1.Storage compatibility mixture chart

Aviation Ordinanceman - Aviation theories and other practices
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GROUP A -   Group A items are initiating explosives. These are bulk initiating explosives that have the necessary sensitivity to heat, friction, or percussion to make them suitable for use as initiating elements in an explosive train. Wet lead oxide, wet lead styphnate, wet mercury fulminate, wet tetracene, dry RDX, and dry PETN are examples of initiating explosives. GROUP B -  Group B items are detonators and similar initiating devices. These are items containing explosives that are designed to initiate or continue the functioning of an explosive train. Detonators, blasting caps, small arms primers, and fuzes without two or more safing features are examples of Group B items. GROUP C -   Group   C   items   are   bulk   solid propellants,   propelling   charges,   devices   containing propellant  with  or  without  a  means  of  ignition,  and items  that  will  deflagrate,  explode  or  detonate  upon initiation.  Examples  of  Group  C  items  are  single-, double-, and triple-base propellants, composite propellants,   rocket   motors   (solid   propellant),   and ammunition with inert projectiles. GROUP D -   Group   D   items   are   secondary detonating  explosive  substances  or  black  powder  or articles  containing  a  secondary  detonating  explosive substance, in each case without means of initiation and without  a  propelling  charge,  or  articles  containing  a primary  explosive  substance  and  containing  two  or more  effective  protective  features.  Examples  of  these items   are   explosive   switches   or   valves,   and   other ammunition   items   packaged   to   meet   the   criteria established for this group. GROUP E -  Group  E  items  are  ammunition  that contains HE without its own means of initiation with a propulsive    charge    (other    than    one    containing    a flammable  or  hypergolic  liquid).  Examples  of  these items  are  artillery  ammunition,  rockets,  and  guided missiles. GROUP F - Group F items are articles containing a secondary   detonating   explosive   substance   with   its means of initiation, with a propelling charge (other than one containing flammable liquid or hypergolic liquid) or  without  a  propelling  charge.  Examples  are  items initiated    by    means    of    a    bouchon-firing    device, grenades, sounding devices, and similar items that have an in-line explosive train in the initiator. GROUP G -  Group  G  items  is  fireworks,  and illuminating,   incendiary,   smoke   (including   HC)   or tear-producing  munitions  other  than  those  munitions that  are  water  activated  or  contain  white  phosphorus, flammable liquid or gel. This group includes ammunition   that,   upon   functioning,   results   in   an incendiary,    illumination,    lachrymatory,    smoke,    or sound   effect.   Examples   of   these   items   are   flares, signals,  incendiary  or  illuminating  ammunition,  and other smoke or tear-producing devices. GROUP H -  Group  H  items  contains  explosives and  white  phosphorus  or  other  pyrophoric  material. Ammunition  in  this  group  contains  filler,  which  is spontaneously flammable when exposed to the atmosphere.    Examples    of    these    items    are    white phosphorus (WP), white phosphorus plasticized (PWP),  or  other  ammunition  containing  pyrophoric material. GROUP J -  Ammunition  in  this  group  contains both  explosives  and  flammable  liquids  or  gels.  This ammunition  contains  flammable  liquids  or  gels  other than  those  that  are  spontaneously  flammable  when exposed  to  water  or  to  the  atmosphere.  Examples  of these items are liquid- or gel-filled incendiary ammunition, fuel air explosive (FAE) devices, flammable-fueled missiles and torpedoes. GROUP K - Ammunition in group K contains both explosives  and  toxic  chemical  agents.  Ammunition  in this group contains chemicals specifically designed for incapacitating    effects    that    are    more    severe    than lachrymation. Examples of these items are artillery or mortar  ammunition  (fuzed  or  unfuzed),  grenades,  and rockets or bombs filled with a lethal or incapacitating chemical agent. GROUP L -   Ammunition   in-group   L   is   not included in other compatibility groups. Ammunition in this group has characteristics that don't permit storage with    other    types    of    ammunition,    explosives,    or dissimilar ammunition within this group. Examples of these  items  are  water-activated  devices,  prepackaged hypergolic liquid-fueled rocket engines, certain fuel-air-explosive    (FAE)    devices,    TPA    (thickened TEA),  and  damaged  or  suspect  ammunition  of  any other   group.   Types   of   ammunition   having   similar hazards can be stored together but cannot be mixed with other groups. GROUP S - Ammunition in this group presents no significant  hazard.  It  is  designed  or  packed  so  all  the accidental functioning hazards are confined within the package, unless the package has been degraded by fire. In this case, all blast or projection effects are limited to the extent they will not significantly hinder fire-fighting operations.   Examples   of   these   items   are   thermal batteries,   explosive   switches   or   valves,   and   other 12-8







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