You have orders to load cargoes of carbon disulfide, diisopropylamine and pyridine on your multi-product tankship. Which statement is true?
Official USCG Answer & Rule Citation
Correct Answer: Option B — Pyridine and diisopropylamine may not be carried in tanks having a common header vent.
Title 46 CFR regulations prohibit incompatible chemical cargoes from sharing common venting header systems. Pyridine and diisopropylamine must have isolated venting arrangements to eliminate the risk of vapors mixing and causing dangerous reactions.
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