Airgas® EPA Protocol Gases are manufactured and analytically certified in strict accordance with the most recent EPA traceability guideline document entitled "EPA Traceability Protocol for Assay and Certification of Gaseous Standards". The majority of EPA Protocol mixtures from Airgas® are certified to a +/- 1% overall uncertainty guarantee, except where limited by the higher uncertainty of the NIST Standard Reference Materials (SRMs) or NIST Traceable Reference Materials (NTRMs). All analytical certifications are performed under completely interference-free conditions. Maximum allowable shelf life is guaranteed. Documentation fully conforms to the requirements of the EPA Protocol program, in compliance, with the Clean Air Act.
Airgas operates its own dedicated blending facilities as well as maintains a national network of blending technology to ensure accurate, consistent production.
Applications
Airgas provides a complete range of certified California BAR (Bureau of Automotive Repair) blends for emissions certification, state vehicle inspection and IM testing, and independent testing laboratories. Products include both standard and enhanced emission monitoring gases, multiple component gases for test equipment calibration, and Vehicle Emission Zero Air used prior to every vehicle test. Gases are produced in California BAR certified facilities using a dynamic blending process that ensures repeatable calibration accuracy.
Safety
Always use in accordance with the Safety Data Sheet (SDS)
Cylinder must be stored and used in an upright, secured position in a well-ventilated or monitored area.
Always follow local fire code requirements when storing gas cylinders.
