Which of the following is a recommended storage practice for hazardous chemicals?

Storing hazardous chemicals in a locked cabinet is a recommended practice to ensure safety and prevent unauthorized access. This approach minimizes the risk of accidental exposure, spills, or misuse by individuals who may not be trained to handle such substances. A locked cabinet helps to secure these materials away from children, pets, and even untrained staff, promoting a safer working environment.

In contrast, storing hazardous chemicals in direct sunlight or near heating devices could lead to degradation, increased pressure, or even combustion, making such practices dangerous. Additionally, while using original containers is important for proper labeling and safety information, the primary advantage of locking them away is significantly related to access control rather than the physical condition of the containers. Thus, the locked cabinet is a crucial aspect of chemical safety management.