ANSI STANDARD READING THE MARKING
ANSI STANDARD
To define the lens type, a special letter is added to the marking. Some letters are followed by a number or a range of numbers (EG W7 or W9-12) that expresses the granted level of protection from optical radiations. If the lens is non-filtering and clear (with a luminous transmittance of not less than 85%), there is no need to specify the lens type. W shade Welding filter U scale number UV filter R scale number IR filter L scale number Visible light filter V Variable tint S Special purpose lenses X Anti-fog LENS TYPE
Z87 MARK Means that the eyewear complies with all the health and safety requirements of the American ANSI/ISEA Z87.1- 2020 .
This marking defines the protection level granted by the PPE against fluids and dust. Every symbol specifies the different level of protection. D3 Splash / Droplet D4 Dust D5 Fine dust USE
U + U6 X
U Z87+ D3 D4
LENS:
FRAME:
MANUFACTURER’S MARK OR LOGO
STANDARD MARK
IMPACT MARK
LENS TYPE
COVERAGE
USE
This is usually a unique identifier or logo of the manufacturer to trace back the glasses to their maker. In our case we use “U” as Univet. MANUFACTURER’S MARK OR LOGO
STANDARD MARK
Z87
Z87-2
Used on plano spectacles, goggles, faceshields.
Used on RX spectacles
When a PPE is tested using the small headform, it’s marked on the frame with the letter “H”. This means it’s suitable for users with a small head. COVERAGE
When a PPE is tested for impact protection, it obtains the “+” marking. IMPACT MARK
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