Compliance with emissions regulations is critical, especially when they seem to change on a daily basis. Partner with Airgas, an Air Liquide company, and keep your emissions programs in compliance with new regulations—including those that involve the calibration of your mobile emissions test equipment.

As the largest supplier of automotive emission gases, we’re proud to offer a full line of 40 CFR 1065.750 compliance analytical gases and a distribution network unmatched in the industry.

As a seasoned supplier who understands your needs as well as EPA regulations, we’ll help make sure you’re always in compliance.

Our pure gases and mixtures meet state certifications as well as Federal I/M 240 and ASM specifications. Along with these gases, we also offer:

• Gas generators
• Disposable/aerosol gases
• Gas cabinets
• Gas panels and distribution
• A complete line of safety products for your facility

All of these products are available through various customizable services from your local Airgas expert.

Raising the standard

When you need an experienced partner in the mobile emissions calibration industry, look no further than Airgas. We were the first to provide the industry with NIST Traceable Reference Materials and to produce NTRM Primes. In fact, Airgas has the largest range of NTRMs in the nation and is currently the contract supplier to NIST of gaseous candidate SRM lots. Our gases have direct analytical traceability with +/-1% analytical accuracy to NIST SRMs.

Airgas is your single source for:

• Calibration gases with maximum shelf life and stability
• Direct analytical traceability with +/- 1% analytical accuracy to NIST SRMs
• The nation’s largest fleet of NIST-certified NTRMs
• NIST-traceable NO mixes down to 0.45 ppm dual certified traceable NO & NOx values available on request
• Full capabilities for California BAR-97, Bar-90 and EPA Protocol gases
• Dynamic blending for multi-packs and tube trailers including Zero Air and FID fuels
• Refillable small FID fuel cylinders for sensors, portable refillable and disposable calibration gases
• Fuel cell and hybrid technology support
• Gas distribution systems, regulators, gas and handling equipment
• Gases delivered faster from one of our five ISO17025 accredited labs