Detect chloride contamination in cleaned tanks via silver-nitrate reaction. Threshold: 1 ppm (1 mg/L) for methanol / ultra-clean cargo.
Formula
$$ \text{Chloride}\text{measured} \leq \text{Threshold}\text{grade} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Cl⁻$ | Chloride concentration | ppm (mg/L) | IP 474 |
Sources
- IP 474 - Chloride in alcohols.
- Methanol Institute - Tanker Handling Guidelines.