European Standard EN166 for Eye Protection
EUROPEAN STANDARDS EN166
To assist you in your understandings of markings on Eye Protection Products covered by this standard, you should note:
OPTICAL STANDARD FRAME LENS
Class 1: For Continuous Work 1
Class 2: For Intermittent Work 2
Class 3: For Occasional Work but must not be worn continuously 3
MECHANICAL PROPERTIES
High Energy Impact (190m/sec) A A
Medium Energy Impact (120m/sec) Grade 1 B B
Low Energy Impact (45m/sec) Grade 2 F F
Performance at Extreme Temperature T T
AREAS OF USE:
Liquids (chemical) 3
Large Dust Particles 4
Gas and Fine Dust Particles 5
Short Circuit Electrical Arc 8
Molten Metals + Hot Solids 9 9
OPTIONAL:
Resistance to Misting/Fogging - N
Resistance to Mechanical Damage
(Anti-Scratch) - K
*NB: The “A”, “B”, “F” and “S” markings on frame and lens represent tests carried out on each component and therefore may be different - in which case the lower level must be assigned to complete unit whenmaking an assessment.
EN169 - Welding Filters
EN170 - Ultraviolet Filters
EN171 - Infrared Filters
EN172 - Solar Protection Filters for Industrial Use
EN175 - Welding Work Equipment
EN207 - Laser Protection Eyewear
EN208 - Laser Adjustment Eyewear


