Bolle Safety - MERCURO Safety Glasses
The glasses have a very high - for airsoft standards - value of the hardness of the lenses - F. Which translates into the mechanical resistance of the material. Is is comparable with the resistance to the so-called low energy impacts. The lenses are designed to withstand a direct hit from a steel BB with a diameter of 6 mm and a mass of 0.86 g moving at a speed of 45 m / s. Converted, this translates to a kinetic energy of 0.87 J. The optical class of the lenses is determined on the basis of their optical parameters. Eye and face protection is classified into 3 classes. Lenses in optical class 1 are intended for continuous use (so these glasses can also be used as sunglasses or protective glasses for everyday use), while lenses in class 3 - for short-term use.
What is EN166?
The EN166 standard is applicable to all types of personal eye protectors used to protect against a variety of hazards that may be encountered in industry, laboratories, school buildings, DIY, etc. where eye damage or visual impairment may occur, with the exception of radiation nuclear origin, X-rays, laser emissions, and infrared (IR) radiation from low-temperature sources. The specifications of this standard do not apply to eye protection when there are separate and complete standards, such as laser eye protection, sunglasses for general use, etc., provided that these standards refer to this standard. Eye protection fitted with corrective lenses is not excluded from the field of application. Tolerances for focusing ability and other characteristics that correlate with the corrective actions are detailed in ISO / DIS8980-1 and in ISO / DIS8980-2.