We are pleased to announce that our N500 CAPS True NO2-NOX-NO Analyzer is now a US Environmental Protection Agency (EPA) approved Federal Equivalent Method (FEM) for measuring concentrations of NO2 in ambient air under EPA designation number EQNA-0320-256.
Read more in the Federal Register: https://www.federalregister.gov/documents/2020/05/07/2020-09704/ambient-air-monitoring-reference-and-equivalent-methods-designation-of-one-new-equivalent-method
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