Photoelectric instruments equipped to measure the absorption of nearly monochromatic light in the visible range by a gas or liquid and so determine the concentration of the absorbing constituents in the gas or liquid.

Quick Facts

Go Historic ID
21980

More Definitions

Photoelectric instruments equipped to measure the absorption of nearly monochromatic light in the visible range by a gas or liquid and so determine the concentration of the absorbing constituents in the gas or liquid.

Page Info

Title
absorptiometers
Date Published
December 12, 2012
Last Updated
April 22, 2021