TEXAS SAMPLING INC

Automatic valves for controlling gases, liquids, or vapors; gas testing instruments; water testing instruments; calibrated apparatus for testing gas, liquids, and vapors for scientific purposes; technical measuring, testing, and checking apparatus and instruments for measuring, testing and checking the temperature, pressure, quantity and concentration of gas, liquids, and vapors; scientific instrumentation for sampling gas, liquids, and vapors; valves for controlling and regulating the flow of gases, liquids, or vapors, not being parts of plumbing, heating, cooling installations or machines; flow switches for monitoring and controlling the flow of gases or liquids; control valves for regulating the flow of gases, liquids, and vapors; laboratory apparatus and instruments for the exchange of substances and heat; heat exchanger assemblies for laboratory use