Which of the following should NOT be done when working with hazardous materials?

Eating or drinking in the lab is strongly discouraged when working with hazardous materials for several important reasons. Primarily, these activities can lead to the ingestion of harmful chemicals, which may be present on surfaces or in the air, even if they are not immediately apparent. Contaminants on lab benches, equipment, or even within containers can easily transfer to food or drink, posing significant health risks.

Maintaining a safe laboratory environment involves strict adherence to protocols that prevent exposure to hazardous substances. Wearing appropriate personal protective equipment (PPE) is essential for safeguarding against potential chemical splashes or exposure to harmful vapors. Similarly, labeling all containers ensures that everyone in the lab can quickly identify the chemicals being handled, which is vital for safe management and response in case of spills or accidents. Properly storing chemicals is essential to prevent reactions between incompatible substances and to ensure that they are kept in conditions that minimize degradation and other hazards.

Thus, the answer emphasizes the critical nature of maintaining a safe laboratory environment by highlighting that eating or drinking in such settings violates fundamental safety guidelines.