None
Picric acid is used as a main bursting charge and booster by the Japanese; as a booster by the Germans; and as a component of composite bursting charges by the French. In the USA, picric acid is used chiefly in the manufacture of ammonium picrate (Explosive D).
FSTC 381-5042, Handbook of Foreign Explosives (1965)
TM 9-1904, Ammunition Inspection Guide (1944)