EPA Performance Specification 4A | CO CEMS Specifications and Test Procedure PS4A

EPA Performance Specification 4A | CO CEMS Specifications and Test Procedure PS4A In this video, we break down EPA Performance Specification 4A (PS-4A), which outlines the specifications and test procedures for Carbon Monoxide (CO) Continuous Emission Monitoring Systems (CEMS) in stationary sources. Whether you are an environmental professional, a stack tester, or preparing for your QSTI/QSTO exams, understanding PS-4A is crucial for regulatory compliance and air quality monitoring. What we cover in this video: Introduction to EPA Performance Specification 4A (PS-4A). Installation and measurement location specifications for CO CEMS. Performance principles: Relative Accuracy (RA) test requirements, Calibration Drift (CD), and Response Time. Data calculation and reporting standards for CO emissions. Difference between PS-4 and PS-4A guidelines. If you found this technical guide helpful, please Like, Share, and Subscribe to QSTI Prep Academy for more EPA monitoring method tutorials! #EPAMS4A #COCEMS #StackTesting #EnvironmentalCompliance #AirQuality #QSTI