9 Material testing devices, namely, video borescopes for inspecting internal surfaces of medical equipment for contaminants, damage, defects, and residual bioburden; Devices for testing surgical instruments, namely, borescopes for testing the sterility of medical equipment and electronic apparatus for testing the electrical conductivity of surgical instruments; Devices for testing surgical instruments, namely, endoscopes, scalpels, clamps, and powered surgical instruments, said devices being for use in testing the sterility of medical equipment; Devices for testing surgical instruments, namely, endoscopes, scalpels, clamps, and powered surgical instruments, said devices being for use in testing the electrical conductivity of surgical instruments; Devices for testing whether surgical instruments are properly insulated from power sources for preventing transmission of electricity to patients through the instruments, namely, borescopes