| Chemical Name | CAS # | H | F | R | Special | .gif)
|
| FLUOBORIC ACID | 16872110 | 3 | 0 | 0 | ||
| FLUORINE | 7782414 | 4 | 0 | 4 | No Water; Oxidizer | |
| FLUORINE, [CRYOGENIC LIQUID] | 7782414 | 4 | 0 | 4 | No Water; Oxidizer | |
| FORMALDEHYDE SOLUTION, [FLASH POINT <= 141 DEG F.; IN CONTAINERS <= 110 GALLONS] | 50000 | 3 | 2 | 0 | ||
| FORMIC ACID | 64186 | 3 | 2 | 0 | ||
| FUEL OIL, [COMBUSTIBLE LIQUID LABEL] | 0 | 2 | 0 | |||
| FUEL OIL, [DIESEL] | 0 | 2 | 0 | |||
| FUEL OIL, [NO. 1] | 0 | 2 | 0 | |||
| FUEL OIL, [NO. 2] | 0 | 2 | 0 | |||
| FUEL OIL, [NO. 4] | 0 | 2 | 0 | |||
| FUEL OIL, [NO. 5] | 0 | 2 | 0 | |||
| FUEL OIL, [NO. 6] | 0 | 2 | 0 | |||
| FURFURAL | 98011 | 2 | 2 | 0 |