Definition of spectrometer. 1  1 : an instrument used for measuring wavelengths of light spectra. 2  2 : any of various analytical instruments in which an emission (as of particles or radiation) is dispersed according to some property (as mass or energy) of the emission and the amount of dispersion is measured nuclear magnetic resonance spectrometer.
1 bar is equal to 1000 millibars. Just like how there are 1000 millilitres in a litre, and 1000 milliseconds in a second. 1 millibar = 0.001 bars.
REBAR CHART. * Bar numbers are based on the number of 1/8 inches included in the nominal diameter of the bar. The nominal diameter of a deformed bar is equivalent to the diameter of a plain bar having the same weight per foot as the deformed bar. U.S. Concrete Products Corporation1878 NW 21st StreetPompano Beach, FL 33069Phone: (954) 973-0368 Fax: (954) 973-0394info@unitedstatesconcrete.com.