(under the class definition) Subject matter which includes methods of examining materials for the presence or absence of oil, the amount of oil present in the material, the contamination of oil or the contamination of material by oil by subjecting the material to a radiation test.
(1) Note. The material examined includes liquid and solid materials, petroleum and petroleum products, and products, and sample material after it has been removed from the earth.
(2) Note. Generally the radiation used for the test is ultraviolet radiation but any type of radiation can be employed.
(3) Note. Visual and automatic methods of testing of oil are here.
SEE OR SEARCH THIS CLASS, SUBCLASS:
253+, for testing methods including taking samples from the earth or testing on or within the earth for oil. 302+, for methods using fluorescent tracer material generally.
304, for methods involving nonradiation treatment of test materials or the separation of test materials or the separation of test materials before or after a radiation test.
362, for methods of testing material which luminescence in response to radiation and an electrical detector detects the luminescence.
432+, for irradiating supported transported or contained material.
459.1, for methods of irradiating luminescent material.
