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.
Objectives Eyepieces Tilting binocular head / SZX-TBI. The best zoom ratio in this class. With a magnification range of 8x-56x (using a 1x objective/10x. eyepieces), the SZX7 offers a zoom ratio of 7:1. This is the best. in its class, and allows specimen to be observed at the most. appropriate magnification.