Choosing non-destructive testing method to determine diffusion coefficient for products from thin capillary-porous materials

To increase the research efficiency for diffusion coefficient in products from thin porous materials is possible with pulse techniques. Such techniques allow one to determine sought-for diffusion coefficient, providing non-destructive testing of the products unlike nose known methods calling for special research samples production. The analysis was made of pulse techniques for non-destructive testing developed to determine diffusion coefficient. Applicability limits for the methods under consideration were determined. The choice of the methods is considered in terms of providing control efficiency and accuracy. The recommendation on possible study subjects are provided for the techniques ensuring the efficiency of sought-for diffusion coefficient determination.