Cal Check

Cal Check

Test Filter Certification Services

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The accuracy of opacity monitor testing is limited by the accuracy of the filters used for testing. Since opacity filters can change over time, we recommend annual testing to ensure correct results. All of our test results are traceable to the National Institute of Standards and Technology (NIST) reference materials. All certifications are performed in our laboratory with state of the art analysis equipment. We also certify smoke generator and diesel emission meter filters.

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