🔍 Key Concepts

• Dangerous Liquid Regulations for Toxic and Reactive Cargoes (46 CFR Part 153) • Special requirements for acrylic monomers like methyl acrylate (inhibitor, temp control, heating coils) • Material compatibility: metals in contact with cargo and requirements for emergency escape breathing apparatus (EEBA) on chemical/product tankers

💭 Think About

• Think about which of these three cargoes is most sensitive to heat and what is normally required of its heating coils. • Consider whether all crew on deck must have their own EEBA, or if regulations specify a minimum number and location instead. • Ask yourself which metals are commonly restricted around amine cargoes and whether the rule would apply to all three cargoes together or only to some of them.

✅ Before You Answer

• Check the specific 46 CFR 153 tables for methyl acrylate to see if heating coils in its tank must be blanked off, prohibited, or allowed with limits. • Verify in the regulations whether the requirement is for a certain number of EEBA sets on board or "each crew member working on deck" to have one. • Look up the material compatibility notes for cargo piping and valves (especially aluminum, copper, and zinc) for these substances to see if any are explicitly prohibited.