Air Quality Monitoring
The Opsis UV DOAS systems have been approved for:
NO, NO₂, SO₂, O₃, H₂S, NH₃, CO, C₁₂, HCl, styrene,
benzene, toluene, phenol, formaldehyde, HF, CH₄.
Certificate No. SE.C.31.001.A No. 7272

The Opsis SM200 dust monitor has been approved.
Certificate No. SE.C.31.001.A No. 8464

The Opsis CO monitor has been approved.
Certificate No. US.C.31.001.A No. 5924

Continuous Emissions Monitoring
The Opsis UV and IR DOAS systems have been approved for:
SO₂, NO, NO₂, NH₃, Hg, H₂O, HCl, HF, CO, CO₂, benzene,
toluene, phenol, N₂O, CH₄.
Certificate No. SE.C.31.001.A No. 5765

The Opsis M1040 dilution NO_x analyser has been approved.
Certificate No. SE.C.31.001.A No. 5766

The Opsis M1050 dilution SO₂ analyser has been approved.
Certificate No. SE.C.31.001.A No. 5767

The Opsis O2000 oxygen monitor has been approved.
Certificate No. SE.C.31.001.A No. 5768

Various dust monitoring instruments have been approved.
Certificate No. DE.C.31.001.A No. 5923

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