[Jewelry making - Article 00621] - Re: [Orchid] Infrared light

[Noel Yovovich]

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>     green polycarbonate with a metallic gold-tone covering that is said
>     to exceed industry and government standards. The green plate is not
>     so dark as to prevent viewing work prior to lighting one's torch.

    I have not seen a gold coated lens yet that can meet the ANSI
    standards for welding applications. 

    At risk of straying outside my sphere of knowledge...  This sounds
    to me like a bit of cross-communication. I use shade 5 goggles for
    welding (oxy-acet.), and the fact is, they are not so dark that you
    can't see your work piece, though visibility is not great. They are
    not like the shade used for arc welding, where you can't see a
    thing. So, gold coating or not, if the green polycarbonate is shade
    5, then that's that, gold or no. If, on the other hand, more light
    comes through these gold glasses than an established, certified
    shade 5 filter, then it's not OK, and that, also, is that. Right?

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