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Levin S.


Books of this author



Articles of this author


Mathematical theory of measurement problems: applications. GOST R 58771–2019 — one-step forward or to steps back for ISO/IEC 17025–2019

ISO/IEC 17025-2019 «General requirements for the competence of testing and calibration laboratories» obliged the entities responsible for testing, calibration and sampling for subsequent tests to objectively assess all of the possible risks. In June 2019 there was ISO 31010:2019 «Risk management — Risk assessment techniques» accepted with updated risk management interpretation. And on December 17 the same year Rosstandart issued an order under ¹1405-ct whereby starting from March 1, 2020 GOST R ISO/IEC 31010–2011 had to be replaced with GOST R 58771–2019 «Risk management. Risk assessment technologies» which also contained updates. How can these changings make impact on ISO/ IEC 17025–2019 and whether they may consider positive you will know from this article by professor S. Levin.

 
Mathematical theory of measurement problems: applications. Determination and adjustment of calibration intervals for means of measurement

Issue: KIPiS 2020 #5

The experience of calibration intervals determination shows that there are several factors that may affect the results. In the following article professor S. Levin provides the detailed information concerning these factors, and demonstrates the results of the main methodological aspects of the compositional approach to determine the calibration intervals.

 
Mathematical theory of measurement problems: applications. «Cosmically jerk» or rang inversion — the reason for «dead end» in cosmology

Issue: KIPiS 2020 #4

Accumulated experience in measuring instruments calibration taking into account inadequacy errors has made it possible to identify an essential factor of the «dead end» in cosmology. But strictly speaking there is no «dead end». There is usual discordance of mathematical models built basing on measurement data from various sources aggravated by violations of the conditions for statistical methods applicability when inadequacy errors of mathematical models can be no longer neglected.

 
Mathematical theory of measurement problems: applications. Catastrophically phenomenon «1985-1986», Risk management and ISO/IEC 17025–2019

Issue: KIPiS 2020 #3

On September 1, 2019 ISO/IEC 17025–2019 came into force. This standard describes the general competence requirements for testing and calibration laboratories. In the present article professor S. Levin unites catastrophic historical facts, risk management analysis and this standard and considers whether this interconnection is actually possible and correct.

 
Mathematical theory of measurement problems: applications. Inadequacy and reliability in metrology

Issue: KIPiS 2020 #2

Metrology is a fundamental science about the methods and means to reflect the physical objects nature with the help of mathematical models. And for metrology the problem of inadequacy has always been the central one. The present article by Professor S. Levin keeps very interesting centuries-old history facts that will help you to better understand this problem.

 

Current issue
#6 December 2020
KIPiS 2020 #6
Topic of the issue:
Modern instrumentation
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