If the measurement produces a numerical result (or the stated result is based on a numerical result), then it is necessary to evaluate the uncertainty of these numerical results. If the test methodology does not provide for a rigorous, metrologically and statistically reliable estimate of measurement uncertainty, the test laboratory should attempt to reasonably assess the uncertainty of the measurement results. This is applicable in the case of test methods both rational and empirical. As well as in the laboratory activities, verification of test methods plays an important role in order to guarantee the competence of the laboratory by checking for the criteria of Kohren, Grabbs and others. In cases where test results are not numerically expressed or based on numerical data (e.g., fit/unsuitable or positive/negative, or based on visual or sensory perceptions or other forms of quality analysis), estimates of uncertainty or other variability of results are not required. Nevertheless, laboratories are advised to have an idea of the variability of the results, if possible. The importance of the uncertainty of qualitative test results is undeniable, as is the fact that the necessary statistical methodology (procedure) exists for the calculations. However, due to the complexity of the issue and the inconsistency in the approaches, it is not currently necessary for laboratories to assess the uncertainty of qualitative test results. However, this issue needs to be considered. The article discusses estimates of uncertainty of analytical measurements taking into account the requirements of regulatory documents. The criteria for verification of measurement methodology based on experimental works are also considered and analyzed.

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Intelligent sensors - the direction of studying the characteristics of scientific and physical parameters in real conditions (in the regions of Uzbekistan at the Aral Sea). This article provides brief information on monitoring methods using software, an analysis of the physical activity of various sensors in an area of over 220 hectares given in the Khorezm region. Creating a common relationship between humanity and the environment with the support of information technologies.

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The subject of this study is to explore modern methods for control of dynamic and kinematic viscosity of liquid media, the state of its metrological support in the republic as well as to see findings from the experiments to ensure metrological control in the International System of Units. The results from this study are found relevant for wide use in agricultural and food products, biologically active additives in assessing quality and safety, metrology. It is also considered relevant in connection with the wide use of viscosity measuring tools in the oil- and fuel industry, medicine, cosmetology, geological and construction and other industries, to evaluate the quality and safety of products, control technological processes at production sites. Scientific and practical recommendations and decisions on improvement of scientific, technical, organizational and regulatory framework of metrological provision of viscometers in the field of ensuring uniformity of measurements and its practical solutions. The findings from the study can be applied with metrological services. Based on the results of the research, metrological examination of various scientific, theoretical and functional viscometers, final conclusions were developed.