Notice is hereby given that the Environmental Protection Agency (EPA) has designated one new reference method for measuring concentrations of carbon monoxide (CO), and one new equivalent method for measuring concentrations of nitrogen dioxide (NO2 ) in ambient air.
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Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of One New Reference Method and One New Equivalent Method
Notice is hereby given that the Environmental Protection Agency (EPA) has designated one new reference method for measuring concentrations of carbon monoxide (CO), and one new e...
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82 FR 27816
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“Office of Research and Development; Ambient Air Monitoring Reference and Equivalent Methods: Designation of One New Reference Method and One New Equivalent Method,” thefederalregister.org (June 19, 2017), https://thefederalregister.org/documents/2017-12738/office-of-research-and-development-ambient-air-monitoring-reference-and-equivalent-methods-designation-of-one-new-refere.