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

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

The protocol process, developed by the EPA, NIST (the National Institute of Standards and Technology), and partners including the auto industry and specialty gas suppliers, is intended to enhance 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.” This does, however, involve more than certified standards. Protocol Gases also require 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 get hold of these reference gases for the protocol mixtures they supply. Beyond the costs incurred purchasing this reference inventory and the time necessary to validate both the accuracy and stability of the gas, the EPA also demands that gas suppliers undergo an EPA-coordinated blind test to verify consistency and accuracy.

Delille Oxygen Company goes the extra mile to make certain that each of the protocol gases we produce for our Columbus customers meets or exceeds the procedure specified 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. Delille Oxygen Company’s got what you’re looking for. Just contact us online or phone us at (614) 444-1177.