Final answer:
The chemical hygiene officer role in a lab is commonly filled by the safety officer, who is responsible for chemical safety and knowing the location of safety equipment like fire extinguishers and eyewash stations.
Step-by-step explanation:
The person who should be appointed as the chemical hygiene officer in a laboratory setting is commonly the safety officer. This role is specifically focused on chemical safety within the laboratory and involves ensuring that proper practices and procedures are implemented to prevent chemical hazards. The safety officer is typically well-versed in the regulatory standards and best practices in chemical handling, making them an apt candidate for overseeing the chemical hygiene plan in a facility. Knowing where safety equipment, such as the fire extinguisher and the eyewash station, is located is an essential part of the chemical hygiene officer's responsibilities.