A.YU. CHUKHLANTSEV

STANDARDIZATION FOR FOOD ADDITIVES: PRACTICAL ASPECTS. PART 2

Abstract. The second part of the article adresses the naming of complex food additives, establishing safety indicators for them, and issues related to monitoring the content of food additives in finished products. The author emphasizes the importance of a responsible, informal approach to solving the specified problems, which can ensure the accuracy and clarity of information provided by manufacturers.

Keywords: technical regulations, technical specifications, complex food additives, food additive labeling, safety indicators, stevia.

B.D. DONSKIKH, O.A. OMELCHENKO, I.E. KUZNETSOV, D.A. KUZNETSOV, E.G. MEZENTSEV, A.A. MAKINSKY, A.G. KASPEROVICH

UNSTABLE GAS CONDENSATE: A NEW OBJECT OF NATIONAL STANDARDIZATION. PART 1

Abstract. The first part of the article devoted to issues of standardization for such hydrocarbon raw material as unstable gas condensate examines the current situation in this area, substantiates the need to develop new regulatory documents, and describes the process of preparing a standard regulating the composition and physicochemical properties of unstable gas condensate.

Keywords: unstable gas condensate, hydrocarbon raw material, physicochemical properties, composition, standardization, terminology system.

O.A. ELISEEVA, L.I. BAYEVA

ALGORITHMIZATION OF APPLYING THE DESIRABILITY FUNCTION FOR SELECTING THE OPTIMAL SOLUTION TO PROBLEMS

Abstract. The Harrington desirability function is a widely used method for consolidating diverse criteria into a single desirability metric, which is particularly sought after in engineering, quality management, and experimental design. This article discusses a structured algorithm for its application aimed at minimizing subjectivity and enhancing the accuracy of calculations.

Keywords: multicriteria problems, desirability function, algorithm, partial desirability, generalized desirability, optimization.

J.YU. KATTAKHODJAEV, N.KH. TALIPOV

DEVELOPMENT AND TECHNOLOGY FOR PRODUCING COMPOSITE SULFATE-CONTAINING MATERIALS

Abstract. The article examines the influence of aluminosilicate fly ash microspheres on the structure formation, physical-mechanical, and thermal properties of gypsum-based composite materials designed for the production of thermal insulation building products. The results of the comprehensive study presented by the authors indicate the high efficiency of using such microspheres in a certain dosage.

Keywords: aluminosilicate microspheres, thermal insulation materials, porous fillers, strength, thermal conductivity, ash and slag waste, superplasticizer.

L.E. PAVLUNENKO, A.L. SHATKOVSKAYA

CLASSIFICATION OF CHOCOLATE BASED ON CHARACTERISTICS THAT DETERMINE ITS NUTRITIONAL VALUE AND COST PRICE

Abstract. The authors consider the features of different approaches to chocolate classification and analyze the systematization of goods of the studied group in accordance with the All-­Russian Classifier of Products by Types of Economic Activity and Commodity Nomenclature of Foreign Economic Activity. The shortcomings that form the possibility for falsification are revealed. Standardized and technological classification signs are defined.

Keywords: chocolate, chocolate products, chocolate classification, chocolate identification, chocolate composition, classification features.

А. TIBA, P.А. KARASEOV, YU.S. KLOCHKOV

RADIOPHARMACEUTICALS QUALITY CONTROL FOR ENSURING SAFE USE

Abstract. The article examines quality management issues in the production and segregation of ⁶⁴Cu radionuclide using a natural nickel target. Target and proton energy requirements are determined ensuring maximum process efficiency while minimizing by-products, requirements for the radionuclide separation process, as well as for the ⁶⁴Cu extraction technology to achieve the desired radionuclide purity.

Keywords: radiopharmaceuticals, radionuclide ⁶⁴Cu, standardization, quality control, cyclotron production, radionuclide extraction technology.

N. MAMADALIEVA

DUAL EDUCATION IN TRAINING SPECIALISTS IN QUALITY AND CERTIFICATION

Abstract. The dual education model is an essential tool for training highly qualified professionals by combining theoretical instruction with practical experience. The article demonstrates its advantages and describes the forms of effective cooperation between enterprises and educational institutions involved in training specialists for quality management and product certification.

Keywords: dual education, educational programs, quality management, certification, practical experience, ISO standards.

T.O. GRIGOROV

METHOD FOR PREPARING CALIBRATION SOLUTIONS OF VOLATILE ORGANOHALOGEN COMPOUNDS IN A CLOSED THERMODYNAMIC SYSTEM

Abstract. According to clause 7.2.1.7 of GOST ISO/IEC 17025–2019, which regulates the activities of testing laboratories, any deviations from the procedure not provided for by the methodology are permitted only if they are documented and technically justified. To experimentally verify the impact of changes on metrological characteristics of the chromatography technique, a study was conducted on the effect of mixing calibration solutions on the convergence and reproducibility of the obtained results.

Keywords: gas chromatography, calibration solution, reproducibility of results, volatile organohalogen compounds.