Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive

Millions of measuring instruments are verified each year before being placed on the markets worldwide. In the EU, such initial conformity assessments are regulated by the Measuring Instruments Directive (MID). The MID modules F and F1 on product verification allow for statistical acceptance sampling...

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Autores principales:	Katy Klauenberg, Cord A. Müller, Clemens Elster
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	conformity assessment european measuring instruments directive (mid) hypothesis test producers’ risk Political institutions and public administration (General) JF20-2112 Probabilities. Mathematical statistics QA273-280
Acceso en línea:	https://doaj.org/article/03d798c5bec84d1c8551e870288b9a90
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spelling	oai:doaj.org-article:03d798c5bec84d1c8551e870288b9a902021-11-26T11:19:50ZHypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive2330-443X10.1080/2330443X.2021.1900762https://doaj.org/article/03d798c5bec84d1c8551e870288b9a902021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/2330443X.2021.1900762https://doaj.org/toc/2330-443XMillions of measuring instruments are verified each year before being placed on the markets worldwide. In the EU, such initial conformity assessments are regulated by the Measuring Instruments Directive (MID). The MID modules F and F1 on product verification allow for statistical acceptance sampling, whereby only random subsets of instruments need to be inspected. This article re-interprets the acceptance sampling conditions formulated by the MID. The new interpretation is contrasted with the one advanced in WELMEC guide 8.10, and three advantages have become apparent. First, an economic advantage of the new interpretation is a producers’ risk bounded from above, such that measuring instruments with sufficient quality are accepted with a guaranteed probability of no less than 95%. Second, a conceptual advantage is that the new MID interpretation fits into the well known, formal framework of statistical hypothesis testing. Thirdly, the new interpretation applies unambiguously to finite-sized lots, even very small ones. We conclude that the new interpretation is to be preferred and suggest re-formulating the statistical sampling conditions in the MID. Re-interpreting the MID conditions implies that currently available sampling plans are either not admissible or not optimal. We derive a new acceptance sampling scheme and recommend its application. Supplementary materials for this article are available online.Katy KlauenbergCord A. MüllerClemens ElsterTaylor & Francis Grouparticleconformity assessmenteuropean measuring instruments directive (mid)hypothesis testproducers’ riskPolitical institutions and public administration (General)JF20-2112Probabilities. Mathematical statisticsQA273-280ENStatistics and Public Policy, Vol 8, Iss 1, Pp 9-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	conformity assessment european measuring instruments directive (mid) hypothesis test producers’ risk Political institutions and public administration (General) JF20-2112 Probabilities. Mathematical statistics QA273-280
spellingShingle	conformity assessment european measuring instruments directive (mid) hypothesis test producers’ risk Political institutions and public administration (General) JF20-2112 Probabilities. Mathematical statistics QA273-280 Katy Klauenberg Cord A. Müller Clemens Elster Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive
description	Millions of measuring instruments are verified each year before being placed on the markets worldwide. In the EU, such initial conformity assessments are regulated by the Measuring Instruments Directive (MID). The MID modules F and F1 on product verification allow for statistical acceptance sampling, whereby only random subsets of instruments need to be inspected. This article re-interprets the acceptance sampling conditions formulated by the MID. The new interpretation is contrasted with the one advanced in WELMEC guide 8.10, and three advantages have become apparent. First, an economic advantage of the new interpretation is a producers’ risk bounded from above, such that measuring instruments with sufficient quality are accepted with a guaranteed probability of no less than 95%. Second, a conceptual advantage is that the new MID interpretation fits into the well known, formal framework of statistical hypothesis testing. Thirdly, the new interpretation applies unambiguously to finite-sized lots, even very small ones. We conclude that the new interpretation is to be preferred and suggest re-formulating the statistical sampling conditions in the MID. Re-interpreting the MID conditions implies that currently available sampling plans are either not admissible or not optimal. We derive a new acceptance sampling scheme and recommend its application. Supplementary materials for this article are available online.
format	article
author	Katy Klauenberg Cord A. Müller Clemens Elster
author_facet	Katy Klauenberg Cord A. Müller Clemens Elster
author_sort	Katy Klauenberg
title	Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive
title_short	Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive
title_full	Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive
title_fullStr	Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive
title_full_unstemmed	Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive
title_sort	hypothesis-based acceptance sampling for modules f and f1 of the european measuring instruments directive
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/03d798c5bec84d1c8551e870288b9a90
work_keys_str_mv	AT katyklauenberg hypothesisbasedacceptancesamplingformodulesfandf1oftheeuropeanmeasuringinstrumentsdirective AT cordamuller hypothesisbasedacceptancesamplingformodulesfandf1oftheeuropeanmeasuringinstrumentsdirective AT clemenselster hypothesisbasedacceptancesamplingformodulesfandf1oftheeuropeanmeasuringinstrumentsdirective
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Hypothesis-based Acceptance Sampling for Modules F and F1 of the European Measuring Instruments Directive

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