Borosilicate glass for sealing to Kovar metal and molybdenum, electrically highly insulating, low refractive index, good insulator X-ray tubes, transmitting tubes, image amplifier tubes, He-Ne-laser, clad tube for optical fibers, ozone generators The heavy metal content for the elements lead, cadmium, mercury, and hexavalent chromium is below 100 ppm Information provided by SCHOTT AG. |