Applied Physics and Mathematics Annotation << Back Physicochemical measurements based on an indirect measurement method Buzanovskii V.A. Samkharadze T.G. The processes of physicochemical measurements based on an indirect measurement method are considered in the article. It is marked that these processes are carried out in two stages: i) definition of informative-target characteristics of substance and ii) calculation of target characteristics of researched substance. It is established that calculation of target characteristics of researched substance is carried out by means of the process containing one stage. Definition of informative-target characteristics of substance is carried out by means of the processes containing from one up to four stages (stages of sampling, sample transformation, measurement, calculation of measurement result). The systematization of processes of definition of informative-target characteristic of substance is carried out. The result of the systematization is a definition of nine typical processes. The generalized mathematical description of direct transformation functions of considered processes is offered and results of its analysis are submitted. In particular, influence of direct and inverse transformation functions of stages on direct transformation functions of typical processes of definition of informative-target characteristic of substance is shown. Key words: physicochemical measurement, indirect measurement method, process, stage, systematization, sampling, sample transformation, direct transformation function, inverse transformation function. Contacts: E-mail: tg1307@mail.ru Pp. 09-18.