Nitrogen Dioxide (NO₂) 400 ppm Calibration Gas — Balance Air, 34L Aluminum (34L-112-400)

Nitrogen Dioxide (NO₂) 400 ppm calibration gas, balance air — NIST-traceable and manufacturer-direct. Spans and calibrates NO₂ / NOx gas detectors and emissions analyzers (diesel exhaust, combustion, stack and environmental monitoring).

• Part number: 34L-112-400
• Concentration: 400 ppm Nitrogen Dioxide (NO₂)
• Balance: Air (20.9% O₂ / Nitrogen) — balance nitrogen also available
• Cylinder: 34 L aluminum, C-10 connection. Also available in 58 L, 105 L & 116 L.
• Shelf life: 12 months from fill date.
• Certification: NIST-traceable certificate of analysis included.
• Cross-reference: direct equivalent to Gasco and Cal Gas Direct nitrogen dioxide 400 ppm balance air ("nitrogen 400") — same spec, manufacturer-direct pricing.
• Made in the USA · ships in 48 hours.

Looking for nitrogen 400 / 400 ppm nitrogen dioxide gas, balance air, in 34 L? Buy NO₂ 400 ppm span gas direct from the manufacturer.