Final answer:
It is true that eating, drinking, or applying makeup in the laboratory is not safe nor appropriate. Laboratories contain hazards like carcinogens and biohazards that could contaminate consumables or cosmetics, and laboratory accidents require immediate reporting and adherence to strict waste disposal protocols.
Step-by-step explanation:
Lab Safety: Eating, Drinking, and Applying Makeup
It is true that it is never appropriate or safe to eat, drink, or put on makeup in the laboratory. This rule is in place to ensure your safety as well as the safety of others. The laboratory environment contains various hazards, such as carcinogens, biohazards, and toxins, which could contaminate food or cosmetics and lead to accidental ingestion or skin exposure. Additionally, if you witness an accident, you should notify your teacher immediately and an accident report may be needed. Waste disposal in a laboratory setting must also follow specific protocols to prevent contamination or injury, and it's important to clean materials thoroughly after use.
Applying cosmetics in a lab is not allowed due to the potential contamination and resultant risk. Eating and drinking on lab countertops where there could be dangerous substances increases the risks of consuming hazardous materials. Moreover, laboratories equipped for research with infectious agents, like a BSL 1 or 2 lab, have additional hazards that include accidental skin punctures, mucous membrane exposure, and accidental ingestion of infectious materials, which are reasons to adhere strictly to these guidelines.
Knowing the location of safety equipment such as fire extinguishers and eyewash stations is crucial in case of an emergency. Sharp objects, chemicals, heat, and electricity all pose risks in these environments, emphasizing the necessity of safety guidelines. In summary, practices such as not applying cosmetics and eating or drinking in the lab are critical safety measures meant to protect you and those around you.