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More about eye protection

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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)

OPTICAL TEST

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.

Welding marking
EN standards

Standard Description

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).

EB 1731

Eye and face protection with wire mesh against mechanical hazards and/or heat for professional use or other uses.