(under subclass 149) Subject matter wherein an electric or magnetic property of an ionized gas is measured as a step in analysis.
(1) Note. The gas may be the result of heating a liquid sample.
(2) Note. Wave or particle radiation as well as use of electric discharge to ionize the gas is included herein.
SEE OR SEARCH CLASS
356, Optics: Measuring and Testing,
311+, for methods which include heating, burning or otherwise stimulating a sample to cause emission of radiation for optical analysis including burning, resistance heating, arc heating, flame and high frequency fields.
