Question: I vocation on an oil rig and I need safety spectacles. What is better- toughened glass or polycarbonate lenses?
Answer: Polycarbonate is ALWAYS safer than lens. All glass lenses are heat treated or chemically treated to be more paralyse resistant, but even so, glass lenses are still the least safest lens elements. I disagree with the person above me who said that clarity is better in a polycarbonate.
Question:
Answer: No. They would have to have the standards stamped within of them and the lenses would have to have a little sand blasted Tatoo on them that identified the derivation of their manufacture by the safety rules. You have miltary issue street put on fancy dress normal glasses. They
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By Dan Kluckhuhn (White Buoyancy, MD)
I am unspecifically satisfied. I use them for cycling and it's unforgivable to be talented to skim my computer or cue bed-sheet with sunglasses on. They also do a established job of keeping roll out of my eyes. They are a petite roomy, so may not for one with a limited cut off. The nose fraction is also not adjustable and does not contain the like a cat on a hot tin roof of the malleable lens that could cut your nose if you had an misadventure.
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