<p>The article examines the standard addition method as a key tool for ensuring the quality of analytical results in laboratories. The focus is on the accuracy and reliability of the data, which are critical requirements for client-oriented laboratories. Since the validation of results is achieved through internal quality control procedures, …
<p>The photometric accuracy of spectrophotometers is limited by non-linearity errors.<br>Usually, calibrated neutral filters with different transmission levels are used to detect such system errors, but the extended uncertainty of the spectral coefficient of directional transmission of these filters is usually 0.003, and this is more than the photometric accuracy of …
<p>The article explains the concepts of "notification", "authorization" and "assignment for the right to verify measuring instruments", and substantiates their equivalence in meaning and legal consequences. The issues of applying the institute of notification of legal entities to the verification of measuring instruments as a modern instrument for ensuring the …
<p>This article provides information on the role of the development of the state reference base of the country, the appointment of state standards of units of quantities, standards of units of quantities, with a reference from the Law of the Republic of Kazakhstan «On ensuring the uniformity of measurements».<br>The list …
<p>The article discusses the reasons for the declining interest of Kazakhstani organizations in the implementation of system management in accordance with the international standard ISO 9001. The key barriers identified are management stereotypes, insufficient staff training, weak information support, and an imperfect regulatory framework. A set of initiatives is proposed: …
<p>Тhis study investigates the influence of environmental factors—specifically temperature and relative humidity—on the accuracy of moisture content determination in stored grain. Experimental data demonstrate that under elevated conditions (30°C and 75% relative humidity), electronic moisture meters exhibited deviations of up to 1.5% when compared to the gravimetric method. In contrast, …
<p>The development of tourism in the Republic of Kazakhstan is connected not only with the expansion of tourism infrastructure but also with creating conditions for its accessibility to all categories of citizens. The adoption of the national standard ST RK ISO 21902 has become an important step in ensuring a …
<p>The quality of control of input raw materials, finished products, technological processes and competitiveness are key factors of products in the production of ferroalloys.<br>In the conditions of ferroalloy production (control of input raw materials, finished products, technological processes) and ensuring a stable chemical composition of products is a key factor …
<p>The relevance of the topic is due to the fact that environmental pollution from industrial emissions is one of the most important environmental problems worldwide.<br>The presence of dust in the air is the result of high rates of progress, industrial production and human impact on the environment.<br>To effectively solve this …
<p>In the current global context, the transition to a circular economy has become a key driver of sustainable development. For Kazakhstan, efficient resource use, waste minimization, and reducing environmental impacts are among the most pressing challenges. Achieving these goals requires the adaptation of international standards and the development of a …
<p>Modern telecommunication networks and infrastructure facilities of the Republic of Kazakhstan place increasingly high demands on the accuracy of time and frequency synchronization in the context of digitalization, the deployment of 5G/6G networks, intelligent energy systems, transportation, and the industrial Internet of Things. The aim of this study is to …
<p>In the context of growing international and national climate regulation, the calculation of product carbon footprint (CFP) is of strategic importance for companies seeking not only to comply with reporting requirements, but also to build sustainable competitive advantage. This study is devoted to the analysis of risks and benefits associated …
<p>This article examines two distinct philosophical approaches to the concept of measurement as presented in the Guide to the Expression of Uncertainty in Measurement (GUM): the realist and the instrumentalist perspectives. It is emphasized that the lack of clear differentiation between these approaches leads to methodological contradictions in the understanding …
<p>The article discusses theoretical and applied aspects that require solutions when developing a methodology for analyzing the state of measurements and forecasting measurement needs for the sectors of the economy of the Republic of Kazakhstan (hereinafter referred to as the methodology of analysis and forecasting). The international and foreign experience …
<p>Based on international experience (BIPM, PTB, EMPIR, etc.) and analysis of the current state of Kazakhstan's metrological infrastructure, an adapted scientific and practical approach to the development of a methodology for analyzing the state of measurements and forecasting measurement needs for sectors of the economy of the Republic of Kazakhstan …
<p>This article examines the sources and evaluation methods of measurement uncertainty associated with various types of level gauges. A systematic approach to classifying the components of uncertainty is presented, including the influence of physical and operational factors. Both theoretical aspects, based on the GUM (Guide to the Expression of Uncertainty …
<p>This article discusses the verification methods and metrological characteristics of artificial lung ventilators. The article considers the MLP-1E lung model device for verification, including the assessment of the minimum volumetric oxygen concentration, the calculation of the measurement uncertainty and the verification procedure in accordance with ST RoK 2.320-2015 "Ventilators. Verification …
<p>The article discusses additive manufacturing based on polymer extrusion. In the modern industrial revolution, which follows the concept of Industry 4.0, additive manufacturing plays a fundamental role as an enabling technology that allows the creation of objects with almost any geometry. Based on this, existing standards for polymer-based materials are …
<p>This article considers the important role of standardized requirements for trunk line rails in the context of improving quality, operational reliability and increasing service life in the modern conditions of development of railway transport of the Republic of Kazakhstan. Additional requirements to rails realized in the new version of standard …
