| 44 / | HD | FUEL AND RELATED COMPOSITIONS |
|
| 300 | DF | LIQUID FUELS (EXCLUDING FUELS THAT ARE EXCLUSIVELY MIXTURES OF LIQUID HYDROCARBONS) {31} |
| 375 |  | .~ Containing compound having phosphorus bonded directly to chalcogen and directly or indirectly to carbon by nonionic bonding (e.g., alkyl acid phosphates, etc.) {5} |
| 376 | DF | .~.~> Nitrogen attached to the phosphorus directly or indirectly by acyclic nonionic bonding {1} |
| 378 | DF | .~.~> Carbon bonded directly to the phosphorus |
| 379 | DF | .~.~> Chalcogen or halogen attached indirectly to the phosphorus by acyclic nonionic bonding |
| 380 | DF | .~.~> Organic nitrogen compound salt of organic phosphorus acids {1} |
| 382 | DF | .~.~> Phosphorus triester |