Gas-release drill operation card: H2S or HC detection + muster.
Formula
$$ \text{Op} = \text{Gas-release drill} $$Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Gas-release drill$ | H2S or HC detection + muster | - | IMCA / IOGP |
Sources
- IMCA / IOGP Industry Guidelines.