ANFO of Shijiazhuang, China, on 16 March 2001. A total of 108 people were killed, and 38 others injured when, within a short time, several ANFO bombs exploded near four apartment buildings. Improvised bombs made with agricultural-grade AN are less sensitive and less efficient than the explosive-grade variety. In November 2009, a ban on ammonium sulfate, ammonium nitrate, and calcium ammonium nitrate fertilizers was imposed in the former Malakand Division – comprising the Upper Dir, Lower Dir, Swat, Chitral and Malakand districts of the North West Frontier Province (NWFP) of Pakistan – by the NWFP government, following reports that those chemicals
TM 31-210 Improvised Munition Handbook can trap that was used against U.S. troops in Vietnam, and the water in a bucket timer that is used by Afghan guerrillas to launch rockets against U.S. military bases. Also worth noting is the altimeter switch used to ignite a bomb on an aircraft at approximately 5000 ft. Chapters cover the manufacture of explosives and propellants, mines, grenades, small arms weapons, ammunition, mortars, rockets, incendiary weapons, fuses, detonators. TM 31-210 Improvised Munition Handbook The TM 31-210 Improvised Munitions Handbook is a United States Army technical manual intended for the United States Special Forces describing manufacture of improvised weapons and