Nitrogen Dioxide

Shop Nitrogen Dioxide (NO₂) calibration gas cylinders at Trigas USA. Available in 34L, 58L, 105L, and 116L aluminum cylinders. Concentrations from 2.5 PPM to 50 PPM in air or nitrogen balance. NIST traceable with ±5% tolerance and 12-month shelf life. Ships in 24 hours with Certificate of Analysis. Used for ambient air quality monitoring, vehicle emissions testing, combustion analysis, and industrial hygiene. Compatible with MSA, Draeger, Honeywell, and RAE Systems detectors.

Most popular: Nitrogen 400 — NO₂ 400 ppm calibration gas, 34 L — the standard disposable size for span & bump testing NO₂/NOx detectors, manufacturer-direct.