Contact Information
Address:
100 Bureau Drive
M/S 8400
Gaithersburg, MD 20899
United StatesPhone:
301-975-4200
Physical Measurement Laboratory (PML)
The Physical Measurement Laboratory (PML) sets the definitive U.S. standards for nearly every kind of measurement employed in commerce and research, sometimes across more than 20 orders of magnitude. PML is also a world leader in the science of measurement, devising procedures and tools that make continual progress possible.