Compatibility Groups for Explosives and Ammunition

Group A Primary explosives, for example, mercury fulminate, lead azide, basic lead azide, styphnic acid, lead styphnate etc. 

Group B Ammunition containing primary explosives and not containing two or more effective protective features. For example, detonators, detonating fuses, medium warheads (in boxes). 

Group C Propellants or other deflagrating explosives or ammunition containing an explosive such as cordites, propelling charges for rocket motors, power cartridges. 

Group E Ammunition containing secondary detonating explosives, without its own means of initiation with a propulsive charge (other than the one containing a flammable or hypergolic liquid), for example, missiles A/T H E, mortar ammunition, HE (medium) (plugged). 

Group H Ammunition containing both an explosive and white phosphorus. For 

---