(under subclass 253) Subject matter which additionally includes means to remove a portion of the material from the earth whereby the portion is subjected to (1) the means to detect natural radiation or (2) radiation modified or caused by the portion when irradiated by means to expose or (3) some other test.
(1) Note. The subject matter of this subclass includes sampling on the surface of the earth within a well or at the bottom of a naturally occurring body of water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
304, for methods of preparing or separating material for an invisible radiation test or controlling the material during the test.
SEE OR SEARCH CLASS
73, Measuring and Testing,
152.07, for borehole formation logging with analysis of density, porosity, or water saturation using core sample analysis, subclass 152.09 for oil, gas, or water saturation by core sample analysis, and subclass 152.11 for other analysis using core sampling.
436, Chemistry: Analytical and Immunological Testing,
