🔍 Key Concepts

• Understand what health hazard ratings represent in maritime/chemical safety documents (often 0–4 scale). • Know where to find triethylbenzene data in the Emergency Response Guidebook (ERG) or Safety Data Sheet (SDS). • Distinguish between health, flammability, and reactivity ratings; don’t mix them up.

💭 Think About

• Is triethylbenzene generally considered highly toxic on short exposure, slightly harmful, or minimal hazard for health effects? • If you looked up triethylbenzene in an SDS or ERG, what section or table would list its hazard code numbers? • Among the choices, which pattern best matches a typical rating for an organic solvent that is flammable but not among the most toxic industrial chemicals?

✅ Before You Answer

• Verify how many categories are normally rated (e.g., health, flammability, reactivity) and which ones the question is asking about. • Confirm that you’re focusing on health hazard numbers only, not flammability or reactivity. • Check at least one authoritative reference (ERG or SDS) for triethylbenzene and note the specific health rating value it uses.