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Emissions Monitoring Systems

Continuous Emissions Monitoring Systems (CEMS) are used to provide data for compliance with regulatory requirements for the control, monitoring, and reporting of pollutant emissions. CEMS can include monitors for CO, CO2, H2S, NO, NO2, SO2, O2, THC, Hg, HCl, and opacity. CEMS are either in-situ, meaning that the measurement is performed in the stack or duct, or extractive, where the stack gas is removed from the stack or duct and transported to the analyzers. Extractive CEMS can either be straight extractive, utilizing a vacuum pump to draw the sample from the stack to the CEMS; or dilution extractive, where a precision eductor uses very clean air to extract a sample, at the same time dilute it, and deliver the sample to the analyzer (s). The primary equipment and services provided by ICAC member companies include: gas analyzers, sample gas conditioning systems, probes, sample lines, calibration gases, data acquisition and reporting systems, CEMS (sole-source suppliers), portable stack gas analyzers and stack testing services. Over the years CEMS have proven themselves to be very reliable, providing the users with data that may be used to improve their process as well as to comply with regulatory requirements.

Stack Testing

Description to come.

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