Protocol Gases: What Are They? And Why Do They Surpass the Cost of a Certified Gas Standard?

The United States Environmental Protection Agency requires the use of Protocol Gases to calibrate air pollution monitors. This is because the EPA has determined that deploying these gases “helps to ensure that air pollution measurements are accurate and can be trusted.”*

The protocol process was initiated by the EPA, NIST (the National Institute of Standards and Technology), and partners like the auto industry and specialty gas producers to increase the accuracy and stability of calibration gases that are used in air monitoring equipment.

The EPA says that Protocol Gases are “compressed gases used to calibrate air pollution monitors for consistent and reliable monitoring.” Certified standards aren’t the only issue, though. Protocol Gases also necessitate that the documented gas concentration must be traceable to NIST reference standards and formulated using the process as described in EPA protocol documentation. This process requires that specialty gas producers get hold of these reference gases for the protocol mixtures they supply. There’s more to consider. Beyond the costs attendant to acquiring this reference inventory and the time one must spend to ensure both the accuracy and stability of the gas, the EPA also specifies that gas manufacturers agree to an EPA-coordinated blind test to certify consistency and accuracy.

Mississippi Welders Supply Co., Inc. goes the extra mile to make certain that each of the protocol gases we ship to our Winona customers meets or beats the procedure demanded in EPA Publication 600 (2012) and that the applicable producing specialty gas laboratory is ISO 1705-compliant. Copies of the compliance documentation, including “round robin” reports, are always available on request. Mississippi Welders Supply Co., Inc.’s got what you’re looking for. Just contact us online or phone us at (507) 454-5231.

*http://www.epa.gov/nrmrl/appcd/mmd/db-traceability-protocol.html