While a large part of the world's stockpile of chemical weapons has been destroyed already, the destruction of non-stockpiled chemical weapons will continue in the future. Dismantling non-stockpiled chemical munitions such as old/abandoned chemical weapons is a very difficult task and involves a high risk of accidents. Controlled detonation is suitable for old/abandoned chemical weapons, since it can destroy chemical munitions without prior dismantling. In controlled detonation, the shells of chemical munitions are fragmented, and the chemical agents and explosives felling the shells are destroyed by the shock wave, as well as by the high-pressure and high-temperature environment produced by the detonation of the donor charge. A detonation chamber and a controlled detonation system, whose main component is the detonation chamber, have been developed and used in destroying many old/ abandoned chemical weapons in and out of Japan since 2004. The controlled detonation system and destruction of chemical weapons are outlined in this report.
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