W 166 34 FT 2C MM/JJJJ - 1,2 W1 FT KN Filter 2 UV protection filter (EN 170) 2C/3 UV protection filter with colour recognition (EN 170) 4 IR protection filter (EN 171) 4C IR protection filter with colour recognition (EN 171) 5 Sunglare filter for industrial use (EN 172) 6 Sunglare filter with infrared requirement Marking and standards EN standard Additional markings none General use 3 Protection against liquids (drops and splashes) 4 Protection against large dust particles with a grain size of > 5 µm 5 Protection against gases, vapours, smoke, fumes and fine dust particles with a grain size of < 5µm 8 Protection against short-circuit electric arc 9 Protection against molten metal and hot solids Tinting level Filter Production date All uvex eyewear conforms to optical class 1 Tinting levels AR 1.2 (Light transmittance 74.4–100%) clear 1.2 (Light transmittance 74.4–100%) amber 1.2 (Light transmittance 74.4–100%) CBR65 1.4 (Light transmittance 58.1–80%) silver mirror 53% 1.7 (Light transmittance 43.2–58.1%) CBR23 2.5 (Light transmittance 17.8–29.1%) grey 23% 2.5 (Light transmittance 17.8–29.1%) polavision 3.1 (Light transmittance 8–17.8%) grey 12% 3.1 (Light transmittance 8–17.8%) silver mirror 12% 3.1 (Light transmittance 8–17.8%) K Surface resistance to damage by small particles in accordance with EN 168 (scratch-resistance) N Resistance to fogging in accordance with EN 168 8 Protection against short-circuit electric arc 9 Protection against molten metal and hot solids Additional markings Marking on lenses in accordance with EN 166 Marking on frame in accordance with EN 166 Mechanical strength none Minimum robustness (filters only) S Increased robustness F Low-energy impact (45m/s or 162 km/h) B Medium-energy impact (120m/s or 432km/h) A High-energy impact (190m/s or 684km/h) T Tested under extreme temperatures (-5°C/+55°C) Mechanical strength none Minimum robustness (filters only) S Increased robustness F Low-energy impact (45m/s or 162 km/h) B Medium-energy impact (120m/s or 432km/h) A High-energy impact (190m/s or 684km/h) T Tested under extreme temperatures (-5°C/+55°C) Mechanical strength Mechanical strength Manufacturer’s identification mark Manufacturer’s identification mark Additional marking Additional marking Conformity mark Conformity mark 23
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