A measurement standards laboratory called the National Institute of Standards and Technology is located on what island in the state of Hawaii?
WWVH WWVH is the callsign of the U.S. National Institute of Standards and Technology's shortwave radio time signal station in Kekaha, on the island of Kauai in the state of Hawaii.
Precision polygon Precision polygons are basic standards for angle measurement, which are used and calibrated by the national standards laboratories in particular.