What Is ANSI Z87.1
ANSI Z87.1 is the American National Standards Institute standard that sets minimum performance requirements for eye and face protection equipment used in occupational and educational settings. The standard covers impact resistance, optical quality, coverage area, and durability to protect against flying debris, chemical splashes, radiation, and other workplace hazards.
OSHA references ANSI Z87.1 in 29 CFR 1910.133, making compliance mandatory for most workplaces. Any eyewear or face protection you select for workplace use must meet or exceed these specifications. For homeowners, while not legally required, following ANSI Z87.1 standards ensures the same level of protection when handling chemicals, power tools, or performing maintenance work around the home.
Certification and Markings
ANSI Z87.1 compliant products carry a permanent marking on the lens or frame. Look for the manufacturer's mark, "Z87" or "Z87+", and the impact rating. The "Z87+" designation indicates high-mass and high-velocity impact protection. Frames must also display the manufacturer's name or trademark.
Equipment that has been dropped, struck, or shows visible damage must be removed from service immediately, even if it still carries the Z87 marking. The impact that damaged the lens may have compromised its structural integrity.
Workplace Requirements and OSHA Compliance
OSHA requires employers to conduct a hazard assessment to determine what type of eye protection is needed for each job task. This assessment must be documented and updated annually or whenever workplace conditions change. Safety managers must ensure workers receive training on proper use, care, and replacement of eye protection before job assignment.
Common workplace scenarios requiring Z87.1 compliant protection include:
- Chemical handling and mixing operations
- Grinding, cutting, or machining operations
- Welding and arc operations
- Electrical work and arc flash hazards
- Spray painting and pesticide application
- Laboratory work with caustic or volatile materials
When chemical hazard exists, employers must provide face shields in addition to safety glasses, as glasses alone do not protect the surrounding facial area from splashes.
Home Safety and Emergency Preparedness
Homeowners should stock Z87.1 compliant eyewear as part of emergency preparedness kits. During natural disasters, power outages, or chemical spills in the home, eye protection prevents injury from broken glass, dust, or cleaning chemical exposure. Keep spare pairs in your emergency kit with an expiration date marked on the storage container.
For home maintenance tasks, non-prescription safety glasses cost between $15 to $50 and meet the same standards as workplace equipment. Over-the-glasses designs accommodate prescription lenses if needed.
Common Questions
- Can prescription glasses be worn instead of Z87.1 safety glasses? Only if your prescription lenses are mounted in frames that meet ANSI Z87.1 and clearly marked. Standard prescription frames do not provide adequate impact resistance and will not have the required marking. Many optical providers offer Z87.1 compliant prescription safety glasses.
- How often must eye protection be replaced? OSHA requires replacement whenever lenses are scratched, coated, discolored, or damaged. Inspect equipment before each use. Most facilities replace them annually as part of routine safety audits, though damage-triggered replacement is more common in high-impact environments.
- What is the difference between Z87 and Z87+? Z87+ means the lens passed high-mass (1 inch, 1 pound) and high-velocity impact tests. Standard Z87 uses lighter impact testing. Choose Z87+ for grinding, cutting, or any high-velocity debris hazard.