A professional who tends equipment units that generate hydrogen chloride to facilitate process control by absorption operator. Respnsibilities include:

• Installs chlorine cylinders in chlorinating unit.
• Starts equipment and pumps to mix metered amount of chlorine with hydrochloric acid from absorption system and to transfer chlorinated acid to feed tanks of stripper still.
• Draws samples of product for laboratory analysis, or tests sample for specific gravity, acidity, and composition to maintain product specifications, using such instruments as hydrometer and pH meter.
• Maintains records of tank levels, gauge and instrument readings, and inventory of materials used and produced.