http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
pt. 1. Filters for protection against radiation generated in welding and allied operations -- pt. 2. Filters for protection against ultraviolet radiation --pt. 3. Filters for protection against infrared radiation.
[prepared by Committee SF/6, Eye Protection].