Discussion of ontological and logical structures of scientific concept
s and descriptions, and of the respective relationships between units
of knowledge on such levels as classification and category systems, th
e system of division of theory, theory, scientific field, applied, sci
entific, general scientific and philosophical knowledge and the system
of science as a whole. The author also looks at methodological and me
thodical use of the concept of substantive scientific knowledge in the
practice of standardization of substantive scientific vocabulary for
the improvement of the quality of selection of specific substantive un
its of scientific knowledge in a certain scientific field, their expli
cation and systematization.