Your tankship is carrying a cargo of...

🔍 Key Concepts

• Inhibited cargoes and when a "Certificate of Inhibition" is required • Special requirements for tank heating systems when carrying polymerizable cargoes like styrene • Where to look for specific cargo requirements (e.g., Certificate of Inspection endorsements and material compatibility for P/V valves)

💭 Think About

• Think about what property of styrene makes it dangerous in bulk and which control measures are typically used to prevent that hazard. • Ask yourself: does styrene normally require heating during carriage, or is heat something you actually want to avoid? • Consider which of the options sounds more like a general compatibility/administrative requirement and which sounds like a very specific technical condition that might not always apply.

✅ Before You Answer

• Check what is usually documented for inhibited cargoes being shipped by sea. • Verify whether heating coils are normally used or avoided for a cargo that can polymerize if warmed. • Confirm that tankship Certificates of Inspection list specific authorized cargoes and that galvanized parts in way of certain chemical cargoes may be prohibited due to reaction risk.

Your tankship is carrying a cargo of styrene. Which of the following is NOT a requirement for carriage of this cargo?

You must have a "Certificate of Inhibition" provided by the shipper.

The cargo tank heating coils must be blanked off.

Authorization to carry styrene must be endorsed on the Certificate of Inspection.

P/V valves with galvanized parts must be replaced.

🔍 Key Concepts

💭 Think About

✅ Before You Answer