NIST Traceable Gas Standards certified

NIST Traceable Gas Standards

ISO 17025 certified

ISO 17025 Accreditation

Gasco Calibration Gas Supplies and Information

SpecGas Inc. offers a comprehensive range of calibration gas supplies including reactive, toxic, hydrocarbon, atmospheric, VOC, and rare gas mixtures. All blends are NIST traceable, produced with proprietary in-house techniques, and engineered for gas detector calibration, emissions monitoring, laboratory analysis, and industrial process applications across diverse industries.

Nitric Oxide (NO) / NOx Calibration Gas Mixture
Phosphine Calibration Gas (PH₃)
Oxygen (O₂)
Moisture Mixture Gas (Water Vapor Calibration Gas)
Hydrogen Sulfide (H₂S) Calibration Gas
Chlorine (Cl₂)
Hydrogen Cyanide (HCN) Calibration Gas
VOCs Calibration Gas
Sulfur Dioxide (SO₂) Calibration Gas
Carbon Dioxide (CO₂)
Formaldehyde Calibration Gas
Ammonia (NH₃) Calibration Gas
Hydrocarbon Calibration Gas Mixtures
Ethane (C₂H₆)
Isobutylene (C₄H₈)
Hydrogen (H₂) Calibration Gas
Hydrogen Chloride (HCl) Calibration Gas
Carbon Monoxide (CO) Calibration Gas
Propane (C₃H₈)
Methane (CH₄)
Acetone Calibration Gas Mixture
Sulfur Hexafluoride (SF₆)
Nitrogen (N₂)
DMS (Dimethyl Sulfide)
Helium Gas (He)
Chlorine Dioxide (ClO₂)
Neon Gas (Ne)
Argon Gas (Ar)
Krypton Chloride (KrCl)
Xenon Gas (Xe)

Our Range of Products

Nitric Oxide (NO) / NOx Calibration Gas Mixture

Nitric Oxide (NO) / NOx Calibration Gas Mixture

  • NIST traceable NO/NOx at PPM & PPB levels
  • EPA Method 7E & Part 75 CEMS calibration ready
  • Enhanced stability via proprietary cylinder treatment
Phosphine Calibration Gas (PH₃)

Phosphine Calibration Gas (PH₃)

  • PH3 blends from 300 ppb to 5% total volume
  • Nickel-plated cylinders for reactive gas stability
  • NIST traceable, OSHA 0.3 ppm PEL compliance use
Oxygen (O₂)

Oxygen (O₂)

  • High purity O2 blends, 17 to 2000 liter capacity
  • NIST traceable for 4-gas monitor O2 calibration
  • EPA Method 3A & Part 75 diluent monitoring
Moisture Mixture Gas (Water Vapor Calibration Gas)

Moisture Mixture Gas (Water Vapor Calibration Gas)

  • Standard concentrations: 10, 100, 200 ppm H2O
  • Stable moisture blend with proprietary treatment
  • NIST traceable moisture calibration gas mixture
Hydrogen Sulfide (H₂S) Calibration Gas

Hydrogen Sulfide (H₂S) Calibration Gas

  • Concentration range from 300 ppb up to 10% vol
  • Proprietary treatment ensures stable H2S mixtures
  • NIST traceable, compatible with major OEM detectors
Chlorine (Cl₂)

Chlorine (Cl₂)

  • Cl2 concentrations from 0.5 ppm up to 10%
  • NIST traceable, nitrogen or zero air balance gas
  • Available in 40 lb., 70 lb., and 100 lb. cylinders

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Frequently Asked Questions

What types of calibration gases does SpecGas Inc. supply?

SpecGas supplies a broad range of calibration gases including reactive and toxic gases (H₂S, CO, NH₃, HCN, HCl, SO₂, NO/NOx, Cl₂, ClO₂, PH₃), hydrocarbons (CH₄, C₂H₆, C₃H₈, C₄H₈), VOCs (formaldehyde, isobutylene, acetone, DMS), atmospheric gases (O₂, CO₂, N₂), moisture mixtures, and rare/noble gases (He, Ne, Ar, Xe, KrCl). Custom multi-component blends are also available.

Are SpecGas calibration gas mixtures NIST traceable?

What concentration ranges are available for calibration gas mixtures?

What cylinder types and sizes does SpecGas offer?

Can SpecGas blend custom specialty gas mixtures to my specifications?

Does SpecGas ship calibration gases internationally?

What is the SpecGas Stability Guarantee for reactive gas mixtures?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Environmental & Emissions Monitoring

Environmental & Emissions Monitoring

Calibration gases for EPA Method CEMS, stack emissions testing, ambient air quality networks, and GHG reporting.

Oil, Gas & Petrochemical

Oil, Gas & Petrochemical

H₂S, CH₄, CO, hydrocarbon LEL, and LDAR calibration gases for upstream wellsites, refineries, and pipelines.

Semiconductor & Electronics Manufacturing

Semiconductor & Electronics Manufacturing

Ultra-high-purity rare gases, toxic gas TGMS calibration, and process gas standards for semiconductor fabs and cleanrooms.

Research & Laboratory

Research & Laboratory

NIST traceable GC carrier gases, multi-component custom blends, and specialty calibration standards for academic and private labs.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Why Calibration & Safety Professionals Choose SpecGas Inc.

Fastest Lead Times in the Industry

All calibration gas mixtures are blended in-house, enabling SpecGas to ship faster than any competitor — with rush service available on request.

Proprietary Stability Guarantee

Patented internal cylinder treatment and gravimetric blending produce reactive gas mixtures with superior shelf life and the SpecGas Stability Guarantee on every order.

Expert Blending of Difficult Gas Mixtures

Founded by a career research chemist with 45+ years of specialty gas experience, SpecGas produces rare and difficult-to-blend gases that major suppliers cannot reliably provide.

Request a Quote for Calibration Gas Supplies

Submit your mixture requirements and a SpecGas specialist will respond with pricing, lead times, and technical guidance tailored to your application.

Contact Us Today

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.