EPA PS-7 Explained | Hydrogen Sulfide (H2S) CEMS Certification Guide
Master US EPA Performance Specification 7 (PS-7) for Hydrogen Sulfide (H2S) Continuous Emission Monitoring Systems in stationary sources. This technical training video breaks down the full installation path, operational test periods, and compliance validation required for industrial environmental monitoring. Perfect for field technicians, refinery engineers, and professionals studying for their QSTI certification exams.
In this guide, we deep dive into the complex testing and calibration specifications outlined under 40 CFR Part 60 Appendix B:
* System Performance & Application: Evaluating H2S CEMS at petroleum refineries, Claus sulfur recovery plants, and fuel gas combustion devices.
* Calibration Drift (CD) Limits: System drift must not exceed 5% of the established span value for 6 out of 7 consecutive test days.
* Relative Accuracy (RA) Criteria: Meeting the strict ≤ 20% Relative Accuracy limit when utilizing the reference method mean value, or ≤ 10% when calculated against the applicable emission standard.
* Reference Method Strategies: Running 9+ concurrent sampling test runs utilizing EPA Method 11, Method 15, or Method 16.
Whether you are configuring your Data Acquisition and Handling System (DAHS), prepping for a RATA, or building your source testing foundation, this video provides a clear step-by-step compliance breakdown.
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