| 252 / | HD | COMPOSITIONS |
|
| 380 | DF | PRESERVATIVE AGENTS {3} |
| 397 | DF | .~ Anti-oxidants or chemical change inhibitants {2} |
| 399 | DF | .~.~ Organic compound containing {8} |
| 400.1 |  | .~.~.~ Component inorganic or organic comprising element other than C,H,O,N,S, and halogen {8} |
| 400.2 | DF | .~.~.~.~> Phosphorus containing {3} |
| 400.3 | DF | .~.~.~.~> Silicon containing {1} |
| 400.4 | DF | .~.~.~.~> Boron containing {1} |
| 400.5 | DF | .~.~.~.~> Chromium containing |
| 400.51 | DF | .~.~.~.~> Lead containing |
| 400.52 | DF | .~.~.~.~> Zinc or aluminium containing |
| 400.53 | DF | .~.~.~.~> Nickel, iron, cobalt, copper, manganese, mercury, or cadmium containing |
| 400.54 | DF | .~.~.~.~> Molybdenum, arsenic, antimony, vanadium, bismuth, tungsten, selenium, or tellurium containing |