| 209 / | HD | CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS |
| 422 | DF | STRATIFIERS {6} |
| * | DD | .~ With liquid treatment {3} |
| * | DD | .~.~ Stationary bed {3} |
| * | DD | .~.~.~ Receptacles {1} |
| 461 | DF | .~.~.~.~ With agitators or conveyors {2} |
| 463 | DF | .~.~.~.~.~ Rotating {2} |
| 464 | ![]() | .~.~.~.~.~.~ Horizontal or inclined axis |