A professional who controls equipment to liquefy and compress chlorine gas. Respnsibilities include:

• Ascertains demand and disposition of product and equipment malfunctioning from logsheet.
• Adjusts equipment to control temperature, pressure, vacuum, level, and flow rate in refrigerating system and compressors to maintain prescribed flow of gas.
• Calculates ratio of chlorine to hydrogen, using burette and other testing apparatus, and notifies production workers of deviations from specifications.
• Meters out sulfuric acid sealant to maintain specified level in compressors, drying towers, and pumps.
• Records operational and test data, and calculates daily averages of readings on logsheet.
• May direct workers engaged in filling of cylinders and other containers.
• May be designated according to specialized equipment controlled as compressor operator i; refrigeration operator.