Setting the standard
Senior Airman Dante Butler, 86th Maintenance Squadron precision measurement equipment laboratory journeyman, forms a triple point of water on Ramstein Air Base, Germany, June 5, 2012. The triple point of a substance is the temperature and pressure at which three phases, (gas, liquid, and solid), of that substance may coexist in thermodynamic equilibrium. The laboratory currently supports 13,842 items in their area of responsibility and on average, calibrates, troubleshoots, and repairs more than 1,000 items monthly. (U.S. Air Force photo/Brea Miller)