CEMS Installation: Don't Miss This Crucial Step for Online Approval!


       Once you have completed the installation of your Continuous Emissions Monitoring System (CEMS), it is essential to validate its functionality and accuracy through comprehensive testing. This article explores the importance of conducting thorough testing to ensure compliance with the requirements set by the United States Environmental Protection Agency (EPA) and the Department of Industrial Works in Thailand. Additionally, we will discuss the Calibration Drift Test Procedure (CD Test) and the significance of adhering to EPA regulations. Read on to discover how you can obtain approval for online connection to the Department of Industrial Works' database.



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  •          Merely installing a CEMS does not mark the completion of the process. Successful testing and verification are crucial to ensuring accurate measurement and reporting of emissions data. It is important to conduct thorough testing to ensure that the CEMS is accurately measuring and reporting emissions data according to the requirements of the EPA, which is also used as a reference standard by the Department of Industrial Works in Thailand. Only after meeting all applicable regulations will the Department of Industrial Works approve your online connection to their database.


               The US EPA, in Part 40 CFR Part 60, specifies that CEMs must pass the calibration drift test procedure before they can be used for compliance purposes. This calibration drift test is essential to validating the accuracy and dependability of the results obtained from the CEMS. It ensures that the instrument is functioning as intended and providing reliable data. 


    What is the calibration drift test?

    The Calibration Drift Test Procedure, also known as the CD Test, is a crucial step in the testing and verification process of a CEMS. It serves as a validation method to verify the accuracy and reliability of the CEMS results.


              During the CD test, the plant operates under normal conditions, and the test is carried out nonstop for a period of seven days. The test needs to be conducted once a day, or once every 24 hours, without altering, maintaining, or rectifying the CEMs in any way. This ensures that the CEMs are operating consistently without any adjustments or interference.


    The CD test assesses the disparity at two concentration levels:

    (1) Low levels: The concentration is set to 0 or less than 20% of the actual measurement range (typically 0).

    (2) High levels: The concentration value exceeds 50% of the actual measurement range.


    The following equation was then utilized to determine the degree to which the accuracy calibration was inaccurate.



    C is the concentration of the standard reference gas.
    M is the concentration that was read from the standard gas injection using the CEMS.
    The span value is the highest concentration value that the instrument is able to measure.

    The criteria under which the results of the test are considered acceptable are described in the following sections:



    Make sure EVERYTHING you do with your CEMS compliance with USEPA Regulations!


           When it comes to ensuring the accuracy and dependability of your CEMS installation, compliance with EPA rules is of the utmost importance and should never be overlooked. The Department of Industrial Works emphasizes that the installed equipment must not only meet the acceptance test criteria, but it must also be manufactured and tested in a manner that complies with the regulatory standards established by the United States Environmental Protection Agency (EPA).

              It is essential to construct the CEMS and conduct testing procedures according to EPA guidelines to ensure that the instrument accurately measures the specific parameters it was designed for. This includes following regulations for calibration drift testing (CD Test), relative accuracy test audits (RATA Test), and other related procedures.

            In the event that EPA standards are not followed, the Department of Industrial Works may refuse to enable online connections to be made.


    Best Advice from us: Always staying updated with EPA Regulations!


       The Environmental Protection Agency (EPA) of the United States provides a range of resources, including as rules, guidance materials, and technical assistance, to assist you in developing an understanding of the necessary testing procedures and putting those procedures into effect. These tools include rules and regulations, guidance materials, and technical support. 

             In order for you to successfully finalize the installation of your CEMS and gain authorization from the Department of Industrial Works to connect online, it is absolutely necessary for you to become familiar with all of that information. This is a requirement that cannot be avoided, as non-compliance may result in penalties or even legal action. Therefore, we strongly recommend that you take the time to thoroughly review and understand all of the provided resources before proceeding with the installation process. 


Need Assistance?

       It can be difficult to fully comprehend the subtleties involved in the installation and testing of CEMS. If you are in need of professional direction, our team is available to assist you. To make an appointment with one of our experienced professionals, please get in touch with our official LINE account. We are able to offer support in gaining a comprehension of EPA laws, carrying out calibration drift testing, and fulfilling compliance obligations. Our team is committed to assuring the proper installation and operation of your CEMS, and we will do all in our power to achieve this goal.

         You can contact us via our    official LINE account by clicking here. Our quality team can ensure that the CEMS system in your facility fulfills the most recent testing standards and all necessary regulatory criteria, so you don't have to worry about any future issues. And if you don't want to miss out on the newest news from us, then like and follow our    https://www.facebook.com/ASE.System.Integrator

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