scholarly journals The Data Evaluation of Interlaboratory Comparisons for Calibration Laboratories

2021 ◽  
Author(s):  
Oleh Velychko ◽  
Tetyana Gordiyenko
Keyword(s):  
Measuring Instruments ◽  
Interlaboratory Comparisons ◽  
Technical Competence ◽  
Optimal Method ◽  
National Accreditation ◽  
Testing Laboratories ◽  
Accredited Laboratories ◽  
Processing Algorithms ◽  
Calibration Laboratories ◽  
Data Processing Algorithms

National accreditation agencies in different countries have set quite strict requirements for accreditation of testing and calibration laboratories. Interlaboratory comparisons (ILCs) are a form of experimental verification of laboratory activities to determine technical competence in a particular activity. Successful results of conducting ILCs for the laboratory are a confirmation of competence in carrying out certain types of measurements by a specific specialist on specific equipment. To obtain reliable results of ILC accredited laboratories, it is necessary to improve the methods of processing these results. These methods are based on various data processing algorithms. Therefore, it is necessary to choose the most optimal method of processing the obtained data, which would allow to obtain reliable results. In addition, it is necessary to take into account the peculiarities of the calibration laboratories (CLs) when evaluating the results of ILС. Such features are related to the need to provide calibration of measuring instruments for testing laboratories. The evaluation results for ILCs for CLs are presented. The results for all participants of ILCs were evaluated using the En and z indexes. The obtained results showed that for the such ILCs it is also necessary to evaluate the data using the z index also.

Analysis of the Experience of Participation in Interlaboratory Comparisons of the Radiation Control Laboratory in National Accreditation System

2021 ◽  
Vol 66 (4) ◽  
pp. 51-53
Author(s):  
A. Poleshchuk ◽  
O. Dorokhova ◽  
B. Kukhta ◽  
N. Bogdanenko
Keyword(s):  
Interlaboratory Comparison ◽  
International Comparisons ◽  
Interlaboratory Comparisons ◽  
Technical Competence ◽  
International Level ◽  
Accreditation System ◽  
National Accreditation ◽  
Radiation Control ◽  
Content Description ◽  
Accredited Laboratories

Purpose: Formation of the idea of laboratories accredited by Accreditation System of Russian Federation, in particular radiation control laboratories, about the possibility of confirming technical competence by means of participation in interlaboratory comparison tests at international level. Content: Description of the experience of successful passing the international comparisons by radiation control laboratories under up-to-date requirements. Conclusion: The experience described in the article can be used by accredited laboratories in practice for conformity validation with accreditation criteria.

Using of Validated Software for Uncertainty Analyses Tools in Accredited Laboratories

2008 ◽  
Vol 381-382 ◽  
pp. 599-602 ◽  
Author(s):  
O. Velychko
Keyword(s):  
Uncertainty Analysis ◽  
Software Package ◽  
International Standards ◽  
Measuring Instruments ◽  
Analysis Software ◽  
Testing Laboratories ◽  
Software Packages ◽  
Uncertainty Of Measurements ◽  
Accredited Laboratories ◽  
Uncertainty Analyses

According to international standards the accredited calibration and testing laboratories are required to use reliable measuring instruments and to estimate an uncertainty of measurements. The variety of software tools and the different approaches taken will almost certainly ensure that for each laboratory there is a software package which will meet the needs. In this paper, several a software packages are made according to their validation for comparison. Briefly general principles of validating uncertainty analysis software packages are described. Briefly used validation methods are described.

scholarly journals Interlaboratory comparisons on determining of alcohol by volume (abv) in vodka Measurement standards

2020 ◽  
Vol 16 (1) ◽  
pp. 57-66
Author(s):  
L. I. Goryaeva ◽  
E. K. Fatkulina ◽  
E. P. Shchukina
Keyword(s):  
Aqueous Solution ◽  
Reference Material ◽  
Volume Fraction ◽  
Interlaboratory Comparisons ◽  
Measurement Standards ◽  
Testing Laboratories ◽  
Accredited Laboratories ◽  
Satisfactory Quality

The article provides an analysis of accuracy indicators for measuring the alcohol by volume (ABV) in vodka performed by various methods according to GOST 32035–2013 «Vodka and Special Vodka. Acceptance Rules and Methods of Anlysis». The results of two rounds of the interlaboratory comparisons on determination of the ABV in vodka conducted to verify the qualifications of accredited testing laboratories are described.Information is provided on the development of the GSO 11142–2018 reference material for the volume fraction of ethanol in an aqueous solution (VER-2), certified for the volume fraction of ethanol in an aqueous solution, instances of which were used during the interlaboratory comparisons. The conclusion is made about the satisfactory quality of measurements of ABV in vodka in the accredited laboratories.

Participation of Accredited Laboratories in Proficiency Testing Schemes and Interlaboratory Comparisons

2015 ◽  
Vol 637 ◽  
pp. 13-20 ◽  
Author(s):  
Siniša Delčev ◽  
Jelena Gučević ◽  
Vukan Ogrizović
Keyword(s):  
Proficiency Testing ◽  
Internal Quality ◽  
Interlaboratory Comparisons ◽  
Proficiency Testing Schemes ◽  
Management Procedures ◽  
Accredited Laboratories ◽  
The Subject ◽  
Different Characteristics ◽  
Calibration Laboratories ◽  
Pt Schemes

This paper presents the elements of metrology laboratory accreditation for calibration in the scope of calibration E-05 Dimensions, and calibration for the subject: the distance and angle measures. During the accreditation, but also in its maintenance, calibration laboratories must prove their competence. Each laboratory must have the quality management procedures for monitoring the validity of the calibrations performed. This monitoring shall be planned and reviewed through: internal quality control, participation in the interlaboratory comparisons or proficiency testing schemes, repeated calibrations using the same or different methods, re-calibration of the saved samples and correlation of results for different characteristics of the sample. According to the ISO/IEC 17025:2005 standard, competence is proved by participating in interlaboratory comparisons or participation in Proficiency testing (PT) schemes. This paper aims to stimulate discussion and debate about ways of proving competence of calibration laboratories. We believe that, in the interpretation of ISO/IEC 17025, the laboratory can demonstrate competence by participating in any activity, PT schemes or interlaboratory comparisons, and they are equal to this need. The procedure and the results of the interlaboratory comparisons between two accredited laboratories will be described.

scholarly journals PERAN PENGUKURAN, STANDARDISASI, PENGUJIAN DAN JAMINAN MUTU (MSTQ) DALAM USAHA PENINGKATAN MUTU

2008 ◽  
Vol 8 (1) ◽  
pp. 35 ◽  
Author(s):  
Setyodewati Setyodewati
Keyword(s):  
Quality Assurance ◽  
Private Sector ◽  
Science And Technology ◽  
National Standards ◽  
The Other ◽  
Measuring Instruments ◽  
Testing Laboratories ◽  
Accepted Standard ◽  
The Government ◽  
Calibration Laboratories

<p>Measurement, Standardization, Testing and Quality Assurance (MSTQ) have important role in the recent development of industry, science and technology. Those four elements are interrelated, thus are measurement<br />without the accepted standard developed through National Standardization System is meaningless. Recently, most of calibration activities are carried out by private sector and their location are concentrated in Jakarta and<br />West Java. Most of them are focusing their calibration activities to the needs of their parent organizations, and the only small number of them also provides their calibration services to external customers. On the other hand, the number of testing laboratories increase faster as demand from the government for exported or imported products shall be tested by accredited testing laboratories as the application of mandatory national standards (SNI). Location testing laboratories widely spread in the country and their activities depend on the commodities of the region, for example, in the region those produce tea or coffee, there will be testing laboratories for tea and coffee. Scope of activities of calibration laboratories also focused on the measurement of mass, temperature, dimensional as most of Indonesian industries use the kind of measuring instruments for their processes.</p>

scholarly journals CONCERNING THE ISSUE OF INTERLABORATORY COMPARISONS DURING FORENSIC EXPERT ACTIVITY

2019 ◽  
Vol 20 (2) ◽  
pp. 163-175
Author(s):  
S. Onoprienko ◽  
O. Naranovych ◽  
I. Spasenko
Keyword(s):  
Continuous Improvement ◽  
Accreditation Body ◽  
Interlaboratory Comparisons ◽  
Technical Competence ◽  
Effective Management ◽  
Comparative Tests ◽  
Forensic Expertise ◽  
Forensic Expert ◽  
Explosive Devices ◽  
Calibration Laboratories

Тhe basis for increasing the efficiency of forensic expertise is the creation of scientifically-based expert methods, the improvement of the system of training of experts and their qualification, as well as effective management. In this regard, it is important to create a well-established system that allows for maintaining a research competence at an appropriate level. In connection with the continuous improvement of the regulatory framework, the requirement for laboratories providing services in the field of testing is increasing. The urgency of the topic is the transition of laboratories to the new version of ISO / IEC 17025-2017 «General requirements for the competence of testing and calibration laboratories». The article deals with the procedure of implementation by the accreditation body of the experimental verification of the technical competence of the laboratory in the form of interlaboratory comparative tests.  The purpose of the article is to develop approaches to organizing and conducting interlaboratory comparisons in forensic expert activities.  On the basis of the work, the main principles of conducting interlaboratory comparisons during judicial expert work were developed. The necessity of conducting interlaboratory comparisons is proved to be determined by the application in Ukraine of the European approach to ensuring trust in the results of the conducted examinations. It is noted that during organization of such comparisons it is necessary to develop organizational measures, for example, related to the manufacture and transportation of samples (objects of research), including dangerous ones, such as samples of narcotic substances, weapons, ammunition, explosive devices, etc.

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