Final answer:
Safety glasses should have the Z87 label indicating they meet the ANSI Z87.1 standard for eye and face protection. Ordinary glasses provide some protection, but Z87 safety glasses are designed to meet specific safety standards, offering more substantial protection, including from ultraviolet radiation.
Step-by-step explanation:
All safety glasses should have the Z87 label stamped somewhere on the frames and/or lenses. This marking indicates that the eyewear meets the American National Standards Institute (ANSI) Z87.1 standard for personal eye and face protection devices.
When working in environments where eye hazards such as flying debris, chemical splashes, or ultraviolet radiation are present, it is crucial to wear protective eyewear. It's important to know that while ordinary glasses provide some protection, specifically designed safety glasses with the Z87 label offer full compliance with safety standards.
For example, materials like polycarbonate used in some safety glasses can block a significant amount of UV radiation which is especially beneficial for those working in settings with UV exposure risks.
Knowing the location of safety equipment in the laboratory, such as the fire extinguisher and the eyewash station, is essential for quick and effective response in case of an emergency. Additionally, always use protective eyewear, gloves, or safety aprons as instructed, particularly in situations where there is a risk to eye safety such as looking at the sun directly or handling broken glass.