scholarly journals The appraisal of Testing centre of the JSC “The URIR named after A. S. Berezhnoy” on compliance of the measurement management system with requirements of the ДСТУ ISO 10012:2005

2019 ◽  
Vol 119 ◽  
pp. 122-126
Author(s):  
P. O. Kushchenko ◽  
O. V. Dunikov ◽  
V. V. Varganov
Keyword(s):  
Management System ◽  
Raw Materials ◽  
Thermomechanical Properties ◽  
Test Methods ◽  
Standard Test ◽  
Current Standards

For many years, the refractory and refractory raw materials have been successfully tested at the Testing centre of the JSC “The URIR named after A. S. Berezhnoy” for the orders of manufacturers and consumers of refractory products and for the institute’s own needs. Testing of refractory products is carried out in order to determine the physicochemical, physico­mechanical, thermophysical and thermomechanical properties and assess the quality of refractories and refractory raw materials. When conducting tests of refractories in the Testing centre of institute, standard test methods are used in accordance with the current standards in Ukraine and the methods developed at the institute. In this article, features of the measurement management system in Testing centre of the JSC “The URIR named after A. S. Berezhnoy” and results of the appraisal of Testing centre of the institute are adduced.

scholarly journals Comparison of Two Intergranular Corrosion Tests on EN AW-6016 Sheet Material

2021 ◽  
Vol 11 (11) ◽  
pp. 5294
Author(s):  
Peer Decker ◽  
Ines Zerbin ◽  
Luisa Marzoli ◽  
Marcel Rosefort
Keyword(s):  
Optical Microscopy ◽  
Intergranular Corrosion ◽  
Sheet Material ◽  
Test Methods ◽  
Standard Test ◽  
Corrosion Depth ◽  
Corrosion Tests ◽  
Automotive Company ◽  
Test Parameters

Two different intergranular corrosion tests were performed on EN AW-6016 sheet material, an ISO 11846:1995-based test with varying solution amounts and acid concentrations, and a standard test of an automotive company (PV1113, VW-Audi). The average intergranular corrosion depth was determined via optical microscopy. The differences in the intergranular corrosion depths were then discussed with regard to the applicability and quality of the two different test methods. The influence of varying test parameters for ISO 11846:1995 was discussed as well. The determined IGC depths were found to be strongly dependent on the testing parameters, which will therefore have a pronounced influence on the determined IGC susceptibility of a material. In general, ISO 11846:1995 tests resulted in a significantly lower corrosion speed, and the corrosive attack was found to be primarily along grain boundaries.

scholarly journals INNOVATIVE APPROACH TO THE PRODUCTION OF HIGH QUALITY MILK-RAW MATERIALS

2019 ◽  
pp. 46-55
Author(s):  
Iryna Bernyk
Keyword(s):  
Quality Management ◽  
Management System ◽  
Quality Management System ◽  
Raw Materials ◽  
Raw Milk ◽  
Primary Treatment ◽  
Milk Quality ◽  
Quality And Safety ◽  
Quality Of Milk

The most pressing problems of the food industry today are the quality of food. The main factors influencing this indicator are the quality of raw materials, the technical and technological level of enterprises, the quality management system and food safety. Milk quality cannot be improved in the processing process, at best it can be stabilized, so the milk quality management system should focus on the technological processes of its production and primary treatment using a preventive approach. The sanitary and hygienic quality of milk production is a complex problem that is determined by a number of factors that combine the notion of "technology and culture of production". General bacterial contamination of milk raw materials should be considered as a collection of sources of ingress of microorganisms into the technological environment, in particular the microflora of the surface of the udder and lobes; microflora of udder channels; microorganisms of milking equipment, milk lines, milk packaging; microflora of personnel and environment. The traditional scheme of primary milk treatment provides a consistent picture of the quality and safety of raw milk obtained from its production. Measures to improve the quality and safety of raw milk through additional use of the decontamination process are proposed. The use of ultrasonic cavitation technologies for milk disinfection allows to increase the quality of milk and to get more money for the farm, to provide quality raw materials for dairy enterprises.

Poly (Lactic Acid) Generated for Advanced Materials

2017 ◽  
pp. 106-127
Author(s):  
Pranut Potiyaraj
Keyword(s):  
Lactic Acid ◽  
Fossil Fuels ◽  
Raw Materials ◽  
Degradation Mechanism ◽  
Test Methods ◽  
Standard Test ◽  
Advanced Materials ◽  
Poly Lactic Acid ◽  
Plastic Industry ◽  
The Cost

The consumption of plastic products from petrochemical feedstock has increased sharply resulting in plastic waste problems while raw materials from fossil fuels tend to decrease rapidly. Researchers and the plastic industry have since proposed a sustainable solution through the development of bioplastics. Ideally, bioplastics which are synthesized from renewable bioresources normally render biodegradability in appropriate conditions. Polyester, one of the most diversely used synthetic polymers today, is an ideal choice for biodegradable polymers due to the relative ease of breaking ester linkages. Poly(lactic acid) or polylactide or PLA which is a thermoplastic polyester with many advantageous properties, for instance, environmentally friendly, biocompatibility, processability, and high chemical resistance is now available in the plastic market as a promising bioplastics. However, the cost of PLA is still much higher than that of general commodity plastics. In order to make PLA commercially competitive, advanced and innovative applications should thus be explored. In this chapter, technological background of PLA production as well as its economic situation is firstly reviewed. Then, the enhancement of PLA properties to suit advanced applications is illustrated. Some polymers used for blending with PLA along with some fillers utilized for the production of PLA composites are described. The chapter concludes with the degradation mechanism of PLA and the standard test methods.

Priorities for development of standard test methods to support the commercialization of cellulose nanomaterials

TAPPI Journal ◽  
2019 ◽  
Vol 18 (4) ◽  
pp. 245-260 ◽  
Author(s):  
STEPHANIE BECK ◽  
COLLEEN WALKER ◽  
WARREN BATCHELOR
Keyword(s):  
Test Methods ◽  
Standard Test ◽  
Technical Committee ◽  
Task Group ◽  
Standard Procedures ◽  
Control Production ◽  
Cellulose Nanomaterials ◽  
Survey Responses ◽  
Physical And Chemical

With the growing number of producers and users of cellulose nanomaterials (CNMs), there is an increasing need to develop standard test methods to control production and quality of CNMs. In 2014, a Task Group was formed within the ISO Technical Committee 6 Paper, board and pulps to begin addressing the need for standards. This Task Group, TG 1, was tasked with reviewing existing standards and identifying the need for additional standards to characterize CNMs. In March 2018, TG 1 launched a survey to ask CNM producers around the world about the importance of having standard procedures to measure and quantify a variety of CNM properties, both physical and chemical. Producers were asked to identify the type(s) of CNM they produced and their scale of production, and to rank the properties for which they felt standard test methods were most important. In this paper, we summarize the survey responses and identify those properties of highest interest for producers of both cellulose nanocrystals (CNCs) and cellulose nano- and microfibril-based materials (CNFs/CMFs). Properties of importance can be divided into three broad groups: i) a standard has either been developed or is under development, ii) a currently used standard could be adapted for use with CNMs, or iii) no standard is currently available and further R&D and consultation with industry is needed before a suitable and well-validated standard can be developed. The paper also examines the challenges of developing new standard methods for some of the key properties—as well as the feasibility and limitations of adapting exiting standards—to CNMs.

scholarly journals SPECIAL ASPECTS OF THE PARAMETERS ASSESSMENT OF COMMUNICATION CHANNELS OF UNMANNED AERIAL SYSTEMS CLASSI AND II

2020 ◽  
pp. 41-48
Author(s):  
V. Ilienko ◽  
O. Isachenko ◽  
A. Los ◽  
M. Gerashchenko ◽  
S. Rudnichenko
Keyword(s):  
Communication Channels ◽  
Armed Forces ◽  
Test Methods ◽  
Control Site ◽  
Standard Test ◽  
Class I ◽  
Unmanned Aerial Systems ◽  
Electronic Warfare ◽  
Aerial Systems

Considering the lack of standard test methods for communication channels of modern unmanned aerial systems (UAS) class I and II, according to the UAS classification of the Armed Forces of Ukraine, it was decided to work out the basic approaches for determining indicators, conditions and procedure for conducting tests in this direction. The suggested methodological recommendations will improve the quality of the parameters and characteristics assessment for communication channels of UAS I and II classes. One of the distinctive trends in the development of modern forms and methods of conducting armed combat at all stages of the armed conflict is the widespread use of the UASs by opposing parties. UASs are capable of significant increasing the effectiveness of accomplishing aerial reconnaissance tasks, organizing electronic warfare, and providing real-time delivery of target pinpointing to fire means for the destruction of enemy’s manpower and material. A distinctive feature of UAS is that its external crew, as a rule, accomplish its mission at a considerable distance from the objects of attack. This fact significantly reduces the security risks and threats associated with performing combat missions under conditions of active enemy counteraction. Due to this feature, considerable attention is paid to the development of a reliable communication system that would be able to ensure task accomplishment at the maximum distance from command and control site. During the tests of UAS Class I and II, the specialists of the State Scientific Research Institute of Armament and Military Equipment Testing and Certification used testing methods of radio channels assessment, which will allow to improve the quality of UAS research of this type and give the manufacturers recommendations for increasing their capabilities.

Alkali-Silica Reaction in Concrete Engineering Suppression Measures of Inquiry

2014 ◽  
Vol 529 ◽  
pp. 26-31
Author(s):  
Wen Bin Qi ◽  
Chun Yan Tian ◽  
Xiao Xin Feng
Keyword(s):  
Fly Ash ◽  
Raw Materials ◽  
Joint Effect ◽  
Test Methods ◽  
Standard Test ◽  
Lithium Hydroxide ◽  
Alkali Silica Reaction ◽  
Local Materials ◽  
Complex Joint

Local materials was used as raw materials in the test. Test methods are standard test methods. It compared the use of fly ash alone or lithium hydroxide used alone inhibited the effect of alkali-silica reaction, and to a certain percentage of fly ash and lithium hydroxide complex joint effect of inhibiting alkali-silica reaction in the test. The results showed that compound admixtures overcome the shortcomings of the use of fly ash alone or lithium hydroxide inhibition of alkali-silica reaction. It can achieve the goal of complementary advantages.

Investigation of Plasticizing Admixtures Used in Hungarian Building Industry

2008 ◽  
Vol 589 ◽  
pp. 439-444
Author(s):  
Márton Takács
Keyword(s):  
Research Work ◽  
Cost Effective ◽  
Test Methods ◽  
Standard Test ◽  
Flow Table ◽  
Main Effect ◽  
Increased Strength ◽  
Work Effect ◽  
Chemical Materials

There is no doubt that concrete makes a massive contribution to sustaining the quality of life. Properties of concrete can be expediently modified by adding special chemical materials called admixtures. Admixtures for concrete are now widely accepted as materials that contribute to the production of durable and cost-effective concrete structures [1]. Plasticizing admixtures reduce water needed to achieve a given workability of the fresh mix. This main effect can be utilized in three ways: increased strength, increased workability, or economies in mix design [2]. In this research work effect of type and dosage of different plasticizing admixtures available in Hungary were investigated in detail. Standard test methods such as flow table test, compressive test, and shrinkage test were applied to obtain effectiveness of the admixtures. Results were compared with the requirements of the harmonized admixture standard MSZ EN 934-2:2002.

scholarly journals Preface

2021 ◽  
Vol 1205 (1) ◽  
pp. 011001
Keyword(s):  
Czech Republic ◽  
Building Materials ◽  
Raw Materials ◽  
Test Methods ◽  
Building Industry ◽  
Conference Program ◽  
Valuable Contribution ◽  
Difficult Situation ◽  
The Czech Republic

All the world as well as our conference faced to the pandemic in 2021. Therefore, the 24th International Conference on Building Materials, Products and Technologies (ICBMPT 2021) had to be postponed from the usual date in June to the new date 29th September to 1st October 2021. The participants appreciated our choice to organize the conference again in the beautiful town of Telč in the Czech Republic, which is popular with many tourists, because it belongs to the cultural heritage under protection of UNECSCO. Despite the difficult situation, the organizers from the Research Institute for Building Materials collected 23 interesting papers among research workplaces in the Czech Republic and abroad. The conference brings not only interesting presentations, but also it creates a platform for scientific discussions and proposals of new mutual projects. The main topics of ICBMPT 2021 were: Inorganic binders, Composite materials, Building materials based on secondary raw materials and Technology and test methods in building industry. Also, several keynote speakers were attracted to contribute to our conference. Besides the conference program, there was a possibility to take part in the specialized workshop Healthy buildings with many interesting topics, among others asbestos treatment and biodeteriogens in building environment. We would like to thank all the participants for their valuable contribution to the conference. We would like to express our gratitude to the reviewers for their time, valuable recommendations and constructive evaluation, in order to guarantee high quality of all the papers. We are looking forward to the next conference in better times! List of Scientific committee, Editors, are available in this pdf.

Competency management of laboratory personnel using LIMS

2020 ◽  
Vol 10 (6) ◽  
pp. 636-641
Author(s):  
Konstantin S. Varaksin ◽  
◽  
Artem S. Makarov ◽  
Alexander Y. Lyapin ◽  
◽  
...  
Keyword(s):  
Quality Management ◽  
Management System ◽  
Quality Management System ◽  
Information Management System ◽  
Test System ◽  
Test Methods ◽  
Laboratory Activities ◽  
Resource Requirements ◽  
Laboratory Workers ◽  
Competence Test

The updated edition of the ISO/IEC 17025 standard introduced significant changes to the structure, terminology, resource requirements, processes, quality management system of testing and calibration laboratories. New requirements were established for the organization of laboratory activities – a process approach and risk-based thinking, which provides for a reduction in part of the prescriptive requirements and the introduction of requirements based on the analysis of the performance of actions. In accordance with GOST ISO IEC 17025-2019, the laboratory must authorize personnel to perform specific laboratory activities, as well as guarantee their competence. This article discusses the organization of the competence management system for the personnel of the laboratories of the organizations of Transneft system using the laboratory information management system (LIMS). The model of the process implementation has been described. It has been established that the competence test system allows you to regularly monitor the skills and knowledge of laboratory workers both in terms of the elements of the Quality Management System and in the applied measurement (test) methods. The personnel responsibility matrix implemented in LIMS regulates the powers and functionality of employees, ensuring that employees are allowed to perform work in accordance with their competence. The functions implemented in LIMS made it possible to automate the management of the competence of laboratory workers in accordance with the requirements of GOST ISO/IEC 17025-2019 and other regulatory documents.

TECHNOLOGICAL ASPECTS OF HIGH QUALITY RAW MATERIAL OBTAINING FOR PECTIN PRODUCTION

1970 ◽  
pp. 47-50
Author(s):  
I. A. Ilina ◽  
I. A. Machneva ◽  
E. S. Bakun
Keyword(s):  
Raw Materials ◽  
Thermal Characteristics ◽  
Environmental Safety ◽  
Raw Material ◽  
High Quality ◽  
Temperature Conductivity ◽  
Drying Temperature ◽  
Plant Raw Materials ◽  
Gel Forming Ability

  The article is devoted to the study of the chemical composition, physical and thermal-pfysical characteristics of damp apple pomaces and the identifying patterns of influence of drying temperature the functional composition and gel-forming ability of pectin. The research is aimed at obtaining initial data for the subsequent calculation of the main technological, hydro-mechanical, thermal, structural and economic characteristics of devices for drying the plant raw materials, ensuring the environmental safety and high quality of pectin-containing raw materials, the reducing heat and energy costs. As a result of the study of the thermal characteristics of apple pomaces, the critical points (temperature conductivity – 16.5 x 10-8 m2/s, thermal conductivity – 0.28 W/m K, heat capacity – 1627 j/(kg K)) at a humidity of 56 % are determined, which characterizing the transition from the extraction of weakly bound moisture to the extraction of moisture with strong bonds (colloidal, adsorption). It was found that the pomaces obtained from apples of late ripening have a higher content of solids (21-23 %), soluble pectin and protopectin (2.5-4.5 %). Dried pomaces obtained from apple varieties of late ripening contain up to 25 % pectin, which allow us to recommend them as a source of raw materials for the production of pectin. The optimum modes of preliminary washing of raw materials are offered, allowing to the remove the ballast substances as much as possible. It is established that when the drying temperature increases, the destructive processes are catalyzed: the strength of the pectin jelly and the uronide component and the degree of pectin esterification are reduced. The optimum drying temperature of damp apple pomaces is 80 0C, at which the quality of pectin extracted from the dried raw materials is maintained as much as possible. It is shown that the most effective for the pectin production is a fraction with a particle size of 3-5 mm, which allow us to extract up to 71 % of pectin from raw materials.

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