Eye Protection Markings The diagram below explains the technical details and manufacturer’s marks on Safety Eyewear according to EN166. Lens marking Scale number of filters (optional) 2-1 2 Manufacturer’s ID code Optical class 1 Symbol of optical class Optical class 1 = best class Continuous use 1 Intermittent use 2 F Mechanical strength (optional) Symbol of mechanical strength S Increased robustness (12 m/s) F Medium energy impact (120 m/s) B High energy impact (190 m/s) A Manufacturer’s ID code Number of EN standard 166 Symbol of field(s) of use 34 Liquids (goggle/visor) 3 Large dust particles (goggle) 4 Gas and fine dust particles (goggle) 5 Short circuit electric arc (visor) 8 Molten metals and hot solids (goggle/visor) 9 Frame marking T Temperature (-5ºC to +55ºC) 9 Symbol of non- adherence of molten metal and resistance to penetration of hot solids (optional) K Resistance to surface damage (anti-scratch) N Resistance to misting and fogging CE CE mark of conformity B Symbol of resistance to high speed particles (optional) F low energy impact (45 m/s) (spectacle/ goggle/visor) B medium energy impact (120 m/s) (goggle/visor) CE CE mark of conformity 0196 Certified body number Liquid and Dust Gas Tight Anti-fog Anti-scratch Molten Metal Side Arm Adjustment 99% Bridge Movement Side Arm Extending 100% Extreme Temperature KEY Low energy impact (45 m/s) Field(s) of use (optional) Basic use no symbol T extreme temperature (-5°C/+55°C) For advice on specific solutions and prescription eye wear, call your local branch. A high energy impact (190 m/s) (visor)