ESS utilizes only top quality equipment to conduct its stack testing services. When selecting our stack testing equipment, quality is our primary focus based on the premise that equipment reliability is vital to a successful test. Low cost or under-maintained equipment can result in stack test results that lack quality and accuracy. We maintain excellent long-term working relationships with our equipment vendors to ensure fast and reliable service. 



Our preventative maintenance program requires that all of our equipment is properly calibrated and in excellent working condition. ESS employs technicians skilled in maintaining, troubleshooting, and repairing equipment both in our shop and in the field.  All of our equipment undergoes the required calibration as outlined in the test method the equipment supports.

ESS implements a consistent calibration schedule which we feel is a vital component to providing high quality valid stack test results.

Contact ESS with any questions regarding our source testing equipment: 888-363-0039

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