How do you evaluate a chemical's hazard using its SDS?

• A. Check the color of the label only.
• B. Review the physical hazards, health hazards, exposure controls, PPE, first aid measures, and spill/handling.
• C. Review only the exposure route; ignore PPE.
• D. Rely on the supplier's reputation for hazard classification.

Answer: (C)

Evaluating a chemical’s hazard using an SDS means pulling together all the hazard information the sheet provides, not just one detail. You look at what hazards the chemical poses (health effects and physical hazards) in the hazard identification section, then see the specific hazards described in the hazard statements (including any GHS classifications and signal words). You also check how to control those hazards—exposure controls, engineering controls, and the recommended PPE in the exposure controls/PPE section—so you know what precautions are required during handling and use. The emergency and first aid measures tell you what to do if exposure occurs, while the handling and storage and accidental release measures explain safe practices and spill or leak response. The physical and chemical properties give insight into flammability, reactivity, and other risks that matter for storage and process design. Relying on only the route of exposure or on a supplier’s reputation misses many hazards and the necessary protections, so a complete hazard evaluation comes from integrating information across these sections to guide safe use and emergency planning.