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

The United States Environmental Protection Agency insists on the use of Protocol Gases to calibrate air pollution monitors. In the EPA’s estimation, utilizing these gases “helps to ensure that air pollution measurements are accurate and can be trusted.”*

The protocol process, initiated by the EPA, NIST (the National Institute of Standards and Technology), and relevant entities such as the auto industry and specialty gas manufacturers, is intended to enhance the accuracy and stability of calibration gases used for air monitoring equipment.

As defined by the EPA, Protocal Gases are “compressed gases used to calibrate air pollution monitors for consistent and reliable monitoring.” This does, however, involve more than certified standards. Protocol Gases also demand that the recorded 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 obtain these reference gases for the protocol mixtures they supply. Beyond the costs incurred buying this reference inventory and the time required to validate both the accuracy and stability of the gas, the EPA further demands that gas producers undergo an EPA-coordinated blind test to certify consistency and accuracy.

ILMO Products Company does everything possible to ensure that each of the protocol gases we produce for our Springfield customers meets or exceeds the procedure approved in EPA Publication 600 (2012) and that the specific producing specialty gas laboratory is ISO 1705-compliant. Copies of the compliance documentation, including “round robin” reports, are always available on request. You can count on ILMO Products Company for the information and support you need. Simply contact us online or get hold of us at (217) 245-2183.