ANSI Z87.1 covers many things but doesn't cover UV, visible light, IR or welding lenses. These ratings are NOT a requirement but optional. Most products just say ANSI Z87.1. I've never seen anything like ANSI Z87.1 W10 U3 IR3 L3. It's a good idea to check these things out before you make such a bold statement as, "it's completely false."
4. Optional testing is now available for dust and mist, as well as for UV (ultra violet), visible light and IR (infra red) filters. These tests are not mandatory, but if a manufacture wants to claim this specific performance the protectors must be tested and marked accordingly.
Welding lenses shall be marked W followed by shade number. UV protectors shall be marked U followed by scale number. IR protectors shall be marked R followed by scale number. A Visible Light filter (such as a gray lens for sun protection) shall be marked L followed by a scale number.
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Today's Featured Article - A Question for Dads This recent topic from the Tractor Talk discussion board is being highlighted because it is an awesome display of the caliber of individuals that have made this site their own. The young person asking questions received positive feedback and advice from total strangers who "told it like it is" with the care many reserve for their own kids. The advice is timeless... so although it isn't necessarily antique tractor related, it will be prominently displayed in our archives to honor those who have the courage to ask and those who have the courage to respond in an honest, positive manner.
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