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Risk of false conformity assessment applied to automotive fuel analysis: A multiparameter approach.
de Oliveira, Elcio Cruz; Lourenço, Felipe Rebello.
Afiliação
  • de Oliveira EC; Posgraduate Metrology Programme, Rio de Janeiro Catholic University, Marquês de São Vicente Street, 225, Gávea, Rio de Janeiro - RJ, Brazil; Technology Management and Automation, PETROBRAS TRANSPORTE S.A., Rio de Janeiro - RJ, Brazil.
  • Lourenço FR; Programa de Pós-Graduação em Fármaco e Medicamentos, Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Brazil. Electronic address: feliper@usp.br.
Chemosphere ; 263: 128265, 2021 Jan.
Article em En | MEDLINE | ID: mdl-33297209
The low-quality of automotive fuels may lead to the generation of pollutants harmful to both environmental and human health. The quality evaluation of automotive fuels requires a multiparameter conformity assessment, which may lead to an increased total risk of false conformity decisions even if all parameters comply with the acceptance limits. Thus, the aim of this work was to propose the establishment of multivariate acceptance limits in order to ensure a reduced total risk of false conformity decisions applied to automotive fuels analysis. Particular and total (consumers' and/or producers') risks were estimated using frequentist (specific) and Bayesian (global) approaches. Multivariate acceptance limits were estimated using Monte Carlo method, adopting an appropriate multivariate coverage factor (k') defined using MS Excel Solver function. The definition of multivariate acceptance limits ensures a total risk below the maximum admissible risk (typically 5%) and was successfully employed in the conformity assessment of automotive fuels (diesel and gasoline). The employment of the multivariate acceptance limits may be useful in the conformity assessment of several multiparameter products.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Gasolina / Poluentes Ambientais Tipo de estudo: Etiology_studies / Health_economic_evaluation / Prognostic_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: Chemosphere Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Gasolina / Poluentes Ambientais Tipo de estudo: Etiology_studies / Health_economic_evaluation / Prognostic_studies / Risk_factors_studies Limite: Humans Idioma: En Revista: Chemosphere Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido