Spectrum Discharge Tube, Mercury Gas to show spectral lines of pure substances. Tubes approximately 260mm long, central capillary portion approximately 3-1/2 to 4 (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps
16x125mm, BD Vacutainer* Plus plastic serum tube (transport tube), 10.0mL. Red/gray conventional closure. Paper label. Additive: Clot activator and double gel for transport.
Spectrum tube Power Supply, Connecting sockets are fully shielded to prevent electric shock. The bottom socket is spring loaded so tubes can be changed easily. Operates on 220V. The cord is 8 inch. Overall dimensions: 14-1/2inch x 4-1/2inch x 3inch
Spectrum Tubes Deuterium, glass Tubes approximately 10-1/4in (260mm) long, central capillary portion approximately 3-1/2in to 4in (90-100mm) long with electrodes sealed at both ends and connected to lead wires protected by metal caps.
Test tube drying racks, plastic, 50 place rack features a 5 x 10 array of pegs that hold tubes up to 16mm in diameter, polypropylene, conveniently hold inverted tubes for drying and to minimize collection of airborne contaminants