Industrial Physics PM710 Paramagnetic Oxygen Analyzer

Waiver Rationale Summary

The GML serves as a Central Calibration Laboratory for the World Meteorological Organization, Global Atmosphere Watch program. In this capacity, they maintain and distribute calibrated gas standards for the major greenhouse gases, carbon dioxide and methane, among others. They also develop in-house gas standards to support the measurement of over 60 trace gases that impact stratospheric ozone and climate. The GML’s measurement records of some greenhouse gases and ozone-depleting substances span 50 years. The PM710 analyzer will be used to determine the oxygen content of top tier gas standards that anchor their calibrations scales. Accurate, precise oxygen measurement, traceable to NIST standards, is an essential part of that process, and GML has relied on the Beckman E2 since the 1980s. The Beckman E2 recently stopped functioning and is not repairable due to its age. In order to maintain continuity to previous gas standards spanning over 30 years, the GML requires a replacement instrument with similar capabilities. The PM710 meets this need.