PTW - diving operation card: Saturation or air, surface-supplied.
Formula
$$ \text{Op} = \text{PTW - diving} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $PTW - diving$ | Saturation or air, surface-supplied | - | IMCA / IOGP |
Sources
- IMCA / IOGP Industry Guidelines.