education and training services, namely, arranging and conducting training classes in the interpretation, use, and application of results from alpha, beta, and gamma emission detecting apparatus and instruments for assaying emitting nuclides, for isotopic identification of nuclides, for nuclear waste classification, and for determining levels of radioactivity; education and training classes in the use of computers and computer software for use with all the aforesaid goods in calibration, data acquisition, data process, and data presentation