Coal - Self-Heating Indicator
IMSBC coal self-heating screening - temperature rise, CH₄ / CO concentrations in cargo space trigger action.
Action
Normal
Formula, assumptions, and limits
Trend CO, H₂, CH₄ twice daily. Surface-seal (no ventilation) to starve O₂. Diversion to port required if uncontrolled rise.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Cargo-hold temperature | °C | RTD | |
| Carbon monoxide | ppm | gas analyser | |
| Methane | %LEL | gas analyser |