588 / | HD | HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT |
231 | DF | HEAVY METAL CONTAINING SUBSTANCE DESTROYED {4} |
236 | DF | .~ Reacting with chemical agents {1} |
237 | .~.~ Using ionizing radiation, electrical energy, magnetic force, radiation, or sonic energy (e.g., laser, plasma, microwave, or ultrasonic) |