How Safety Glasses Work To To Protect You

A pair of safety glasses is one of the most mundane but useful pieces of equipment that anyone can own

. As very visually oriented species human beings rely greatly on their sense of sight to function, which is why protecting it and preserving it is of the utmost importance. There are a lot of occupations, and do it yourself tasks, that involve using heavy tools or jobs that involve a lot of flying particles. This is the reason why people need protective eyewear.

How does it work?

The working principle behind a pair of safety glasses is simple. They simply shield the eyes from potentially harmful particles. These particles can range from dust, to small pieces of wood that fly around when working. They are constructed from materials that are supposed to resist high impact from small debris. This protective eyewear is cheap and is readily available for purchase from most local hardware stores.

Most people think that normal reading glasses can qualify as a substitute for protective eyewear, when in truth they do not. First and foremost, reading glasses are often made of glass. While glasses are resistant to acquiring structural weaknesses such as scratches, they are nevertheless brittle. This means the lens can shatter easily. In the event that high impact debris hits the reading glasses lens, there is a very good chance that a small crack will occur, which may lead to a small piece of the lens to being lodged into the users eye.

Protective eyewear is strenuously tested to meet certain standards to ensure that they work. Unlike the lens of reading glasses, safety glasses do not shatter as easily. Not only are they resistant to high mass impact, but they are also resistant to other small particles like dust or tiny drops of liquids.

Basic impact vs. high impact safety glasses

The ANSI (American National Standards Institute) is the organization that sets the standards for protective eyewear. There are basically two different types of safety glasses available on the market today. Some protective eyewear is rated for basic impact while the other is rated for high impact. Both types of protective eyewear are tested differently. Basic impact protective eyewear are tested without a frame, the testing process involves dropping a small metal ball from a fixed height. This will determine if the lens will withstand the amount of punishment inflicted by the small metal ball without breaking.

A high impact pair of protective eyewear includes the frame. The testing process for high impact safety glasses is different from the process for the basic impact glasses. The test for high impact involves shooting a small steel ball at the lens that travels at a speed of 150ft per second. The lenses of the safety glasses must not break, crack, or be dislodged from its frame in order to pass the test. A pair of high impact safety glasses is often used in occupations which involve tasks that necessitate the use of high performance pieces of equipment.

by:Trey Read

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