
Nitric Oxide (NO) / NOx Calibration Gas Mixture
- Stable NO/NOx blends at PPB & low PPM levels
- NIST traceable reactive gas calibration standard
- Disposable cylinders from 17 to 103 liters capacity
NIST Traceable Gas Standards
ISO 17025 Accreditation Standards
SpecGas Inc. offers a comprehensive range of NIST-traceable calibration gas mixtures for the PS200 Gas Detector Calibration Station, including reactive, toxic, hydrocarbon, VOC, and atmospheric gases. Produced with proprietary blending techniques and cylinder treatment processes, these mixtures ensure long shelf life, precise concentrations, and reliable detector performance across industrial, environmental, and laboratory applications.


























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Gas detector calibration involves exposing the detector to a certified calibration gas mixture at a known concentration and adjusting the instrument's response to match that value. The process typically includes a zero adjustment using clean air or nitrogen, followed by a span calibration using a NIST-traceable gas standard at the target concentration. Always follow the manufacturer's recommended procedure and use appropriate calibration gas for the target gas species.
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Calibration gases support process controls, emissions compliance, and hazardous gas monitoring in refineries and plants.

NIST-traceable gas standards calibrate CEMS, air quality monitors, and stack emission analyzers for regulatory compliance.

High-purity calibration gas mixtures support gas chromatography, FTIR spectrometry, and analytical instrument calibration.

Precision specialty gas blends are used in semiconductor fabrication, photolithography, and electronics process controls.
Talk to our experts for custom solutions and tailored guidance.
Our unique internal cylinder treatment and gravimetric blending process ensures every reactive gas mixture remains stable and accurate throughout its shelf life, backed by the SpecGas Stability Guarantee.
All calibration gas mixtures are produced as NIST-traceable standards using state-of-the-art equipment, giving laboratories, safety teams, and manufacturers verifiable accuracy for critical instrumentation.
Every mixture is blended in-house with rush service available, enabling faster delivery than larger competitors — keeping your calibration schedules, production lines, and safety programs on track.
Submit your specifications and a SpecGas expert will respond promptly with pricing, lead times, and custom blending options.
For immediate assistance, feel free to give us a direct call at (215) 443-2600. You can also send us a quick email at website-inquiries@specgasinc.com.
For immediate assistance, feel free to give us a direct call at (215) 443-2600. You can also send us a quick email at website-inquiries@specgasinc.com.