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PROTECTIVE GLASSES AND GOGGLES
LENS AND FRAME MARKINGS
Frame Standards and Marks
The frame standards of Baymax protective glasses are used in the European protective standard EN-166, which shows resistance against mechanical risks. The standard mark is generally located on the inside of the handle of the frames.
As an example, the W EN166 FT CE mark indicates that the spectacle frame has low-energy and high-temperature particles.
It shows that it is resistant to impact.
3 (Liquid Protection): Closed body glasses provide impermeability and protection against liquids.
4 (Dust Protection): Closed body glasses provide resistance against dust particles larger than 5 microns.
5 (Dust Protection): It provides resistance against dust particles not exceeding 5 microns in closed body glasses.
S (Increased Robustness): It means that the protective glasses frame is resistant to small or large objects with a diameter of 6mm and a weight of 0.86gr, hitting at a speed of 12 m/s.
F (Low Energy Impacts): Indicates that the safety glasses frame is resistant to particles with a diameter of 6 mm and a weight of 0.86 g, striking at a speed of 45 m/s.
B (Medium Energy Impacts): Indicates that the protective glasses frame is resistant to mini-parts with a diameter of 6 mm and a weight of 0.86 g, and also hitting at a speed of 120 m/s.
A (High Energy Impacts): Indicates that the safety glasses frame is resistant to particles with a diameter of 6 mm and a weight of 0.86 g, striking at a speed of 190 m/s.
T (High Temperature Particles): It is located next to the mechanical strength mark (A, B, F) and indicates that the lens is resistant to particles at extreme temperatures.
Standards and Marks
The Baymax lens standard expresses the resistance of the lens against mechanical risk factors such as impact, scratching and fogging, and various radiation rays, as well as the low quality of the lens, that is, the degree of refraction of light.
Impact, Heat, Scratch and Condensation Resistance
Markings set by the European standard EN 166 indicate the resistance of the lens to impact, scratching and fogging of small, high-speed particles.
For example, 2C - 1.2 W 1 FT KN CE-marked safety glasses are resistant to impact, scratch and fog from low-energy and high-temperature particles.
S (Increased Robustness - General Purpose): Indicates that the frame of the safety glasses is resistant to 22mm diameter and 43 g weight, as well as minimal parts hitting at a speed of 12 m/s.
F (Low Energy Impacts): Indicates that the eyeglass lens is resistant to particles with a diameter of 6 mm and a weight of 0.86 g, striking at a speed of 45 m/s.
B (Medium Energy Impacts): Indicates that the spectacle lens is resistant to small parts with a diameter of 6mm and a weight of 0.86gr, impacting at a speed of 120 m/s.
This class is generally the highest level of protection observed in standardized safety glasses.
A (High Energy Impacts): Indicates that the spectacle lens is resistant to particles with a diameter of 6 mm and a weight of 0.86 g, striking at 190 m/s.
This grade is the highest strength level generally found in protection visors.
T (High Temperature Particles): It is located next to the mechanical strength mark (A, B, F) and indicates that the lens is resistant to particles at extreme temperatures (-5 / +55 °C).
K (Scratch Resistance): It is located next to the mechanical protection mark (A, B, F) and indicates that the eyeglass lens is scratch resistant.
N (Fog Resistance): It is located next to the mechanical strength mark (A, B, F) and indicates that the eyeglass lens is resistant to fogging.
Protection Against Radiation Rays
It shows the resistance of the protective glasses lens against ultraviolet and infrared rays. These protection classes do not include working with extremely powerful beams such as lasers, which compel the EN 207 and EN 208 standards.
For example, protective glasses bearing the 6 - 1.2 W 1 FT KN CE mark provide resistance to solar radiation and infrared rays.
2 (UV Filter): Provides UV protection according to EN 170 European standards.
It can change the appearance of colors and create difficulty in color separation.
2c or 3 (UV Filter with Good Color Separation): Provides UV protection within the framework of EN 170 European norm. It does not make color perception difficult as it does not cause color distortion.
4 (IR Infrared Ray Protection): Provides protection according to EN 171 European norm. It provides resistance against IR infrared rays in high temperature environments.
5 (UV Ultraviolet Protection): Provides 100% ultraviolet protection according to EN 172 European norm. IR does not provide infrared protection.
6 (UV Ultraviolet and IR Infrared Ray Protection): Provides IR infrared protection along with 100% ultraviolet protection according to EN 172 European standard.
Lens Color and Light Transmittance
Although the color of the protective glasses lens does not directly indicate the light transmittance, generally transparent, blue and yellow lenses have high and medium transmittance levels, while the smoked colored and mirror-like lenses offer low and very low light transmittance.
Safety glasses with 2C - 1.2 W 1 FT KN CE marking provide high light transmission.
1.2 (High Transmittance): It has light transmission between 74.4% - 100%.
1.7 (Medium Transmittance): It has a light transmission between 43.2% - 58.1%.
2.5 (Low Transmittance): It has a light transmission between 17.8% - 28.1%.
3.1 (Very Low Transmittance): It has a light transmission between 8% - 17.8%.
Lens Quality
Lens quality is determined by the amount of refraction of the lens. The less the lens of the protective glasses refracts the light and reduces its effect, the better the quality and longer use possible.
Protective glasses with 2C - 1.2 W 1 FT KN CE marking have high lens quality and long-term use is possible.
1 (High Lens Quality): It is suitable for long-term use as the refraction level is low (± 0.06 diopters).
2 (Medium Lens Quality): Since the refraction level is medium (± 0.12 diopter), it is appropriate to use it at intervals. Long-term use can cause various problems such as eye damage.
3 (Low Lens Quality): It should be used only when necessary, as the level of refraction is very high (±0.25 diopters). Long-term use may cause various problems such as dizziness and eye disorders.
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