| 210 / | HD | LIQUID PURIFICATION OR SEPARATION |
| 198.1 | DF | WITH MEANS TO ADD TREATING MATERIAL {5} |
| 205 | ![]() | .~ With distinct reactor tank, trough or compartment {2} |
| 206 | DF | .~.~> Chemical holder in series with separator |
| 207 | DF | .~.~> Within gravitational separator {1} |