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Wall-Wash Chloride Check

Detect chloride contamination in cleaned tanks via silver-nitrate reaction. Threshold: 1 ppm (1 mg/L) for methanol / ultra-clean cargo.

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Formula, assumptions, and limits

ChloridemeasuredThresholdgrade\text{Chloride}_\text{measured} \leq \text{Threshold}_\text{grade}
SymbolMeaningUnit
ClCl⁻Chloride concentrationppm (mg/L)

Source: IP 474 - Chloride in alcohols; Methanol Institute - Tanker Handling Guidelines

In short

Detect chloride contamination in cleaned tanks via silver-nitrate reaction.

Learn the theory Marine Tank Cleaning and Crude Oil Washing