588 / | HD | HAZARDOUS OR TOXIC WASTE DESTRUCTION OR CONTAINMENT |
205 | DF | ORGANIC SUBSTANCE DESTROYED {8} |
228 | .~ Heating or vacuum used to drive off or produce a volatile substance {2} | |
229 | DF | .~.~> Using a solid heat carrier |
230 | DF | .~.~> Using a gaseous heat carrier |