More about eye protection
Test methods for eye protection
Mechanical test according to EN 166 (Enhanced strength) is performed, among others, through a 22 mm diameter steel ball being released on the glass at a speed of 5.1 m/s. “S” specifies that this test has been carried out.
Additional test for protection to withstand high-velocity particles
A 6 mm diameter steel ball is used and is fired at the protective glass.
Low energy impact 45 m/s is marked with “F”. (Glasses, Goggles, Visors)
Medium energy impact 120 m/s is marked with “B”. (Goggles, Visors)
High energy impact 190 m/s is marked with “A”. (Visor)
The optical quality of eye protection is divided into 3 classes. Lenses are marked 1, 2 and 3.
Class 1 is the best class with regard to optical properties.
|EN 166||Eye protection, requirements and specifications|
|EN 167||Eye protection, optical test methods|
|EN 168||Mechanical tests Describes the different mechanical testing methods in accordance with the requirements in EN 166 and other standards for eye protection.|
|EN 169||Eye protection, welding filters|
|EN 170||Describes filter requirements for UV radiation|
|EN 171||Describes filter requirements for IR radiation|
|EN 172||Sunglasses for professional use, even with glare|
|EN 175||Eye and face protection during welding|
|EN 207/208||Filters against laser radiation/Filter for the adjustment of the laser.|
|EN 379||Eye protection, welding filter with automatically darkening welding glass (switchable luminous flux transmittance or double luminous flux transmittance).|
|EN 1731||Eye and face protection with wire mesh against mechanical hazards and/or heat for professional use or other uses.|