. . "ork.Observe Standard Laboratory Practices when conducting a low hazard operation: Never store food or beverages in storage areas, refrigerators, glassware, or utensils that are also used for laboratory operations.Do not eat, drink, smoke, chew gum, take medicine, or apply cosmetics in laboratories where chemicals or other hazardous materials (e.g., radioactive or biohazardous materials) are presen" . .