| 422 / | HD | CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING |
| 129 | DF | CHEMICAL REACTOR {28} |
| 164 | DF | .~ Solid reactant type (i.e., absence of fluid reactants) {2} |
| 165 | DF | .~.~ Including ignition means for reactant {1} |
| 166 | | .~.~.~ Electrically actuated |