Evaluation of turbidity measuring instruments using statistical process control

Detalhes bibliográficos
Autor(a) principal: Souza, Lucas de Paula Ferreira
Data de Publicação: 2012
Outros Autores: Campos, Cláudio Milton Montenegro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/13396
Resumo: The quality management system (QMS) and environmental management system (EMS) are currently being widely developed in laboratories, and have contributed to significant improvements in measurement management processes and client opinion. The purpose of this work is to establish appropriate methodologies for assessing the turbidity measurement that guarantee the quality of the results concerning precision and accuracy and also to test the service performance of the Water Analysis Laboratory of the Engineering Department (LAADEG) of Federal University of Lavras (UFLA). The research assessed two bench turbidimeters "A and B" through a statistical process capability study, analyzing the potential capability indexes (Cp) and performance capability (Cpk). We identified special causes also present in the control through non predetermined random patterns. After the studies, it was found that turbidimeter "B" should be used for all turbidity measurements in LAADEG, since its precision was higher than turbidimeter "A".
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spelling Evaluation of turbidity measuring instruments using statistical process controlAvaliação de instrumentos para medição de turbidez através do controle estatístico do processoTurbidez - MediçãoGestão da qualidadeControle estatísticoTurbidity - MeasurementQuality managementStatistical controlThe quality management system (QMS) and environmental management system (EMS) are currently being widely developed in laboratories, and have contributed to significant improvements in measurement management processes and client opinion. The purpose of this work is to establish appropriate methodologies for assessing the turbidity measurement that guarantee the quality of the results concerning precision and accuracy and also to test the service performance of the Water Analysis Laboratory of the Engineering Department (LAADEG) of Federal University of Lavras (UFLA). The research assessed two bench turbidimeters "A and B" through a statistical process capability study, analyzing the potential capability indexes (Cp) and performance capability (Cpk). We identified special causes also present in the control through non predetermined random patterns. After the studies, it was found that turbidimeter "B" should be used for all turbidity measurements in LAADEG, since its precision was higher than turbidimeter "A".Os sistemas de gestão da qualidade (SGQ) e ambiental (SGA) vêm sendo amplamente desenvolvidos em laboratórios nos dias atuais, o que tem contribuindo com melhorias significativas nos processos de gestão da medição e na visão dos clientes. Objetivou-se com este artigo avaliar a medição de turbidez para garantir a qualidade dos resultados das análises para a execução dos serviços de ensaios do Laboratório de Análise de Água do Departamento de Engenharia (LAADEG) da Universidade Federal de Lavras (UFLA). Avaliaram-se dois turbidímetros de bancada "A e B" por meio de estudo estatístico de capacidade do processo, analisando os índices de capacidade potencial (Cp) e capacidade de desempenho (Cpk). Identificaram-se, também, as causas especiais presentes nas cartas de controle, utilizando-se de padrões não aleatórios estabelecidos previamente. Após os estudos, definiu-se que deverá ser utilizado o turbidímetro "B" para a realização de todas as medições de turbidez no LAADEG.Editora da Universidade Federal de Lavras2017-07-19T14:07:31Z2017-07-19T14:07:31Z2012-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfSOUZA, L. de P. F.; CAMPOS, C. M. M. Evaluation of turbidity measuring instruments using statistical process control. Ciência e Agrotecnologia, Lavras, v. 36, n. 4, p. 424-430, jul./ago. 2012.http://repositorio.ufla.br/jspui/handle/1/13396Ciência e Agrotecnologiareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLASouza, Lucas de Paula FerreiraCampos, Cláudio Milton Montenegroinfo:eu-repo/semantics/openAccesseng2023-05-03T11:29:30Zoai:localhost:1/13396Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-03T11:29:30Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Evaluation of turbidity measuring instruments using statistical process control
Avaliação de instrumentos para medição de turbidez através do controle estatístico do processo
title Evaluation of turbidity measuring instruments using statistical process control
spellingShingle Evaluation of turbidity measuring instruments using statistical process control
Souza, Lucas de Paula Ferreira
Turbidez - Medição
Gestão da qualidade
Controle estatístico
Turbidity - Measurement
Quality management
Statistical control
title_short Evaluation of turbidity measuring instruments using statistical process control
title_full Evaluation of turbidity measuring instruments using statistical process control
title_fullStr Evaluation of turbidity measuring instruments using statistical process control
title_full_unstemmed Evaluation of turbidity measuring instruments using statistical process control
title_sort Evaluation of turbidity measuring instruments using statistical process control
author Souza, Lucas de Paula Ferreira
author_facet Souza, Lucas de Paula Ferreira
Campos, Cláudio Milton Montenegro
author_role author
author2 Campos, Cláudio Milton Montenegro
author2_role author
dc.contributor.author.fl_str_mv Souza, Lucas de Paula Ferreira
Campos, Cláudio Milton Montenegro
dc.subject.por.fl_str_mv Turbidez - Medição
Gestão da qualidade
Controle estatístico
Turbidity - Measurement
Quality management
Statistical control
topic Turbidez - Medição
Gestão da qualidade
Controle estatístico
Turbidity - Measurement
Quality management
Statistical control
description The quality management system (QMS) and environmental management system (EMS) are currently being widely developed in laboratories, and have contributed to significant improvements in measurement management processes and client opinion. The purpose of this work is to establish appropriate methodologies for assessing the turbidity measurement that guarantee the quality of the results concerning precision and accuracy and also to test the service performance of the Water Analysis Laboratory of the Engineering Department (LAADEG) of Federal University of Lavras (UFLA). The research assessed two bench turbidimeters "A and B" through a statistical process capability study, analyzing the potential capability indexes (Cp) and performance capability (Cpk). We identified special causes also present in the control through non predetermined random patterns. After the studies, it was found that turbidimeter "B" should be used for all turbidity measurements in LAADEG, since its precision was higher than turbidimeter "A".
publishDate 2012
dc.date.none.fl_str_mv 2012-07
2017-07-19T14:07:31Z
2017-07-19T14:07:31Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv SOUZA, L. de P. F.; CAMPOS, C. M. M. Evaluation of turbidity measuring instruments using statistical process control. Ciência e Agrotecnologia, Lavras, v. 36, n. 4, p. 424-430, jul./ago. 2012.
http://repositorio.ufla.br/jspui/handle/1/13396
identifier_str_mv SOUZA, L. de P. F.; CAMPOS, C. M. M. Evaluation of turbidity measuring instruments using statistical process control. Ciência e Agrotecnologia, Lavras, v. 36, n. 4, p. 424-430, jul./ago. 2012.
url http://repositorio.ufla.br/jspui/handle/1/13396
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editora da Universidade Federal de Lavras
publisher.none.fl_str_mv Editora da Universidade Federal de Lavras
dc.source.none.fl_str_mv Ciência e Agrotecnologia
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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