The U.S. Army Corps of Engineers is organized geographically into eight permanent divisions, one provisional division, one provisional district, and one research command reporting directly to the HQ. Within each division, there are several districts.
Laser Safety Glasses - Holmium Laser. 1  On this page you will find our range of Holmium laser safety glasses , Ruby laser safety glasses, Dye and Erbium Laser Safety Glasses. 2  Important: Australian laser safety standards AS/NZS 2211.3:2002 require L-Ratings to be clearly marked on the laser glasses.
1. Green Shade 14 Solar Eclipse Glasses. #14 is the darkest lens shade you can buy â just as dark as the most protective welding helmet shades. As a result, these glasses are so dark that you can wear them to watch a solar eclipse, as well as using them for all types of welding including MIG and TIG.