Chris Meyer has 30 years of metrology experience working at NIST, working in the areas of temperature, humidity, and pressure standards. He is an honor graduate of Haverford College and received his Ph.D. in physics from the University of California at Santa Barbara. Afterwards, Chris came to NIST as a postdoc, where he and performed acoustic thermometry to obtain some of the most accurate thermodynamic temperature measurements ever made over the range 234 K to 303 K. He joined the NIST Thermometry Group (Now the Thermodynamic Metrology Group) in 1991. Chris’s first project in this group was to construct a facility to realize the International Temperature Scale of 1990 (ITS-90) over the low-temperature region (0.65 K to 84 K) using 3He and 4He vapor-pressure thermometry, gas thermometry, and platinum resistance thermometry. Since that time, he has worked in several other areas of thermometry, including wire thermocouples, digital thermometers, light-pipe radiation thermometers, and fluorescence thermometers. Chris has worked in the discipline of humidity since 2000. During this time, he helped develop the current NIST gravimetric hygrometer and the hybrid humidity generator (the US national standard for humidity). He used the gravimetric hygrometer to validate the performance of hybrid humidity generator and measure thermophysical properties of moist air and moist CO2). Chris has operated the humidity calibration laboratory since 2013. Recently, he spent 15 months working at the International Bureau of Weights and Measures (BIPM), helping develop a manometric system for determination of the amount fraction of CO2 in air. In 2017 Chris entered pressure metrology and he now oversees the NIST piston gauge calibration laboratory.