
Nitric Oxide (NO) / NOx Calibration Gas Mixture
- Stable PPM & PPB NO/NOx reactive gas mixture
- NIST Traceable, EPA Method 7E & PS-2 compliant
- Custom balance gas, fastest industry lead times
NIST Traceable Gas Standards
ISO 17025 Accreditation
SpecGas Inc. offers precision gas mixture calibration gases spanning hydrocarbon, reactive/toxic, noble, VOC, and atmospheric classifications. NIST Traceable and blended in-house using proprietary gravimetric techniques, these calibration standards serve gas detector calibration, environmental emissions monitoring, semiconductor manufacturing, research laboratories, and industrial process control applications.
































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SpecGas produces all calibration gas mixtures using gravimetric blending techniques traceable to NIST (National Institute of Standards and Technology). Each mixture is analytically verified against certified reference standards, ensuring concentration accuracy required for regulatory compliance, instrument calibration, and research applications across hydrocarbon, toxic, noble, and atmospheric gas types.
Talk to our experts for custom solutions and tailored guidance.

NIST Traceable calibration standards for CEMS, EPA Method stack testing, and ambient air quality network stations.

Excimer laser gas mixtures, process gas calibration, and ultra-high-purity standards for semiconductor fab operations.

High purity calibration gas blends for GC, FTIR, GC-MS, and analytical instruments in university and private labs.

Calibration gases for LEL detection, RGA analysis, BTU custody transfer, LDAR programs, and refinery process monitoring.
Talk to our experts for custom solutions and tailored guidance.
All calibration gas mixtures are blended in-house by specialty gas veterans, enabling lead times far ahead of standard industry turnaround — including rush service when requested.
SpecGas's patented internal cylinder treatment process produces stable reactive gas mixtures at low PPM and PPB levels, backed by the SpecGas Stability Guarantee and immediate remake policy.
Every mixture is gravimetrically blended to customer specifications using proprietary techniques, ensuring NIST Traceable accuracy across hydrocarbon, toxic, noble, VOC, and atmospheric gas types.
Submit your specifications and a SpecGas expert will respond with pricing, lead time, and blending options tailored to your application.
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.