What action should a researcher take when unsure about a chemical's hazard?

When unsure about a chemical's hazard, the most appropriate action for a researcher is to consult the Safety Data Sheet (SDS) or a supervisor for guidance. The SDS provides critical information about the chemical, including its potential hazards, safe handling practices, and emergency procedures. This resource is an essential tool that outlines the necessary precautions to maintain safety in the lab and to prevent accidents or exposure.

Relying on a supervisor is also crucial because experienced personnel can provide insights and practical advice tailored to specific situations or chemicals that may not be fully covered by the SDS. This collaborative approach ensures that all necessary safety measures are taken, prioritizing the well-being of the researcher and others in the environment.

In contrast, consulting safety guidelines might lack the specificity of the SDS, ignoring concerns or proceeding without proper knowledge significantly increases risk, and using personal judgment can lead to serious safety oversights, as individual experience may not account for all hazards present in the chemical's use. Engaging with established resources and knowledgeable individuals is essential for safe laboratory practices.