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

The United States Environmental Protection Agency specifies the use of Protocol Gases to calibrate air pollution monitors. This is because the EPA has determined that making use of 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 geared toward improving the accuracy and stability of calibration gases that are used in air monitoring equipment.

The definition of Protocol Gases is, in the words of the EPA, “compressed gases used to calibrate air pollution monitors for consistent and reliable monitoring.” Nevertheless, as critical as certified standards are, Protocol Gases also require that the recorded gas concentration must be traceable to NIST reference standards and produced using the process as described in EPA protocol documentation. This process requires that specialty gas producers acquire these reference gases for the protocol mixtures they distribute. There’s more to consider. Beyond the costs attendant to buying this reference inventory and the time one must spend to validate both the accuracy and stability of the gas, the EPA also requires that gas suppliers undergo an EPA-coordinated blind test to certify consistency and accuracy.

SYOXSA, Inc. goes the extra mile to substantiate that all of the protocol gases we ship to our El Paso customers meets or surpasses 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. For details, contact us online or get hold of us at 915-771-7674.