An estimation of uncertainty of the method for determination of correlated mass fraction of wool in mixed yarn (woolpolyester) of textile material according to the “scatter diagram” is made. The points that make scattering region are experimental data. Point data on the diagram correspond to the value of two variables – proportion (x) and mass fraction (y) of wool fibers as a component in mixed yarn of material. The development of the diagram is based on the correlation dependence of both variables (x, y). It gave an opportunity to determine in practice the quality of fibrous structure of material according to the microsampling, using one of the methods of optical microscopy.
uncertainty of value, fibers of wool, proportion, mass fraction, textile material, yarn, method of optical microscopy