This standard outlines the requirements for eye and face protection to protect workers from impact, non-ionizing radiation, and liquid splash exposures. It has been updated twice since 2003, with revisions in 2010 and 2015. This change focuses on product performance and has more closely aligned the US standard with international standards.
ANSI Z87.1-2015 continues to differentiate eye protection based on specific risks and places additional emphasis on allowing workers to choose the right eyewear based on their environment and potential hazards.
The hazard organizes required protection based on encountered hazards. The most common hazards include:
Splashes and droplets
Small dust particles
Look for markings and packaging which outline what specific hazards each eyewear is designed to protect against. Most common safety glasses are designed to protect against blunt impact.
There are four different tests for this standard. The lowest level test is a 1 inch steel ball that is dropped on the lens from about 50 inches. This is similar to getting hit in the eye with a golf ball thrown from a few feet away. This provides good protection but does not qualify the glasses for high impact.
For that type of work, you have to have a lens stamped with a Z87+ marking. To qualify for the plus rating, they must pass the following three tests.
First, a 0.25” steel ball is fired at 6 specific locations on the lens at about 150 feet per second, roughly 100 miles per hour. Essentially getting shot in the eye with a BB gun.
Second is a high mass impact test with a 17.6 ounce steel missile shaped object, weighing just over a pound, or 500 grams. This is also dropped from 50 inches and is equivalent to being hit in the eye with a hammer.
Finally, a penetration test. For this, a sharp needle weighing 1.56 ounces is dropped onto the lens from 50 inches.
If during all of these tests, no part of the eye wear breaks or fragments from the frame, and no part
of the eyewear comes apart, it qualifies for the 87+ stamp.
There is also a military ballistic standard, which has to stop a .15 caliber round fired at 640 feet per second.
The ANSI standard requires easy-to-understand lens and frame markings. These make selecting and identifying compliant eye protection easy. All markings must be clearly and permanently marked on the frame and lens.
IMPACT: Z87+ indicates high-velocity impact. Z87 alone means basic impact
SPLASH & DROPLET: D3 for splash and droplet
FINE DUST: D5
WELDING: W plus a shade number
UV: U plus the scale number
INFRARED LIGHT: R plus the scale number
VISIBLE LIGHT FILTER: L plus the scale number
PRESCRIPTION: Z87-2 on the front of the frame and both temples
HEAD SIZE: H indicates products designed for smaller head sizes
OTHER: V for photochromatic and S for special lens tint