identifying shade level of inspection glass
RSS | Subscribe | Contact Us | Advertise | About Us
Results 1 to 4 of 4
  1. #1

    identifying shade level of inspection glass

    Hi All,

    I have an inspection glass that belonged to my late step father, he was a QC guy at a heavy machinery manufacturer. I want to determine if it is suitable for viewing the upcoming eclipse with. I know very little about this but in reading NASA's safety info they say shade 12 or higher.

    There is an inscription on the glass, does this tell anything about the shade level? The inscription is BS.679.8EWP then what looks like a subscript Y with a couple of tildes (~) above it, then X. I am attaching a photo, though it was difficult to get a pic of the inscription.

    Anyone have any insight for me?

    Thanks!!
    Attached Images Attached Images  

  2. #2
    Join Date
    Mar 2014
    Posts
    4,258

    Re: identifying shade level of inspection glass

    My SWAG would be that it's a shade #8.

  3. #3
    Join Date
    Nov 2012
    Location
    South Texas
    Posts
    2,139

    Re: identifying shade level of inspection glass

    You can get a known shade lens at a welding supply for a couple of bucks.

  4. #4
    Join Date
    Mar 2014
    Posts
    126

    Re: identifying shade level of inspection glass

    Shade 14 is the absolute minimum.


    https://www.usatoday.com/story/news/...ely/578679001/
    Last edited by AGW; 08-19-2017 at 05:23 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
RSS | Home | Penton Media | Contact Us | Subscribe | For Advertisers | Terms of Use | Privacy Statement