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