(under subclass 86) Subject matter including measurement of the chemical composition, quantity (density), or presence of a specific substance in an analyte.
(1) Note. The measurement is typically accomplished by deflection analysis of the X-rays modified in direction by the analyte and comparing the deflection with reference data from substances of known composition.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45, for fluorescence composition analysis.
53, for absorption composition analysis.
83, for spatial energy dispersion composition analysis.
SEE OR SEARCH CLASS
250, Radiant Energy, 253, for geological surveying.
