Profile: Burrell Scientific, Inc. manufactures and distributes laboratory shakers, gas analyzers, thermocouple welders, and Severs rheometers for laboratories. Our manufactured products include the Burrell Wrist-action® laboratory shaker, our Industro-B gas analyzer, oxygen purity analyzers, hydrogen purity analyzers and our Build-up® gas analyzer models for methane & ethane, thermocouple welders, and extrusion rheometers (Severs). Industro-B portable gas analyzer is supplied with two Burrell auto-bubbler pipettes and one contact pipette, bulb type burette, 50 ml. graduated 0 to 21% in 0.2%, one set of solutions, carrying case, and instructions. It is one of the test apparatus suggested by the American Gas Association to meet new combustion and emission standards.