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Implementação da Norma ISO/IEC 17025:2005 no contexto de alguns métodos físico-químicos
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A garantia da qualidade depende da competência demonstrada pelo laboratório para produzir dados e resultados tecnicamente válidos. Actualmente, um dos principais objectivos do laboratório da Solvay Portugal é o reconhecimento da qualidade dos resultados que emite aos seus clientes. Para tal, pretende a sua acreditação segundo a norma EN ISO/IEC 17025:2005, nos parâmetros contemplados na Licença Ambiental LA 161/2008 do efluente industrial geral da fábrica, E2. O presente trabalho foi desenvolvido no laboratório da Solvay Portugal, e teve como objectivos a validação dos métodos, segundo as normas correspondentes, e cálculo de incertezas associadas aos valores dos seguintes parâmetros: Sólidos Suspensos Totais, pH, Crómio Hexavalente, Crómio Total, Azoto Amoniacal, Carência Química de Oxigénio. No desenvolvimento do trabalho foram utilizadas as seguintes técnicas: Gravimetria, Potenciometria, Espectrometria de Absorção Molecular, Titulimetria e Espectrometria de Emissão Atómica com plasma acoplado induzido, ICP-AES.
Quality assurance depends on the laboratory demonstration of competence to produce technically valid data and results. Nowadays, one of the main objectives of the laboratory of Solvay Portugal is the recognition of the quality of the results it delivers to its clients. In the frame of this objective one of the targets is to obtain accreditation according to EN ISO / IEC 17025:2005, on the parameters pertaining the Environmental Agreement LA 161/2008, on the general industrial effluent from factory, E2. This work was developed in the laboratory of Solvay Portugal, and had as objective the validation of the methods, according to the corresponding norms, and calculations of uncertainty of the results of the following parameters: Total Suspended Solids, pH, Hexavalent Chromium, Total Chromium, Ammoniacal Nitrogen, Chemical Oxygen Demand In the development of this work, the following techniques were used: Gravimetry, Potentiometry, Molecular Absorption Spectrometry, Titrimetry and Induced Coupled Plasma Atomic Emission Spectrometry, ICP-AES.
Quality assurance depends on the laboratory demonstration of competence to produce technically valid data and results. Nowadays, one of the main objectives of the laboratory of Solvay Portugal is the recognition of the quality of the results it delivers to its clients. In the frame of this objective one of the targets is to obtain accreditation according to EN ISO / IEC 17025:2005, on the parameters pertaining the Environmental Agreement LA 161/2008, on the general industrial effluent from factory, E2. This work was developed in the laboratory of Solvay Portugal, and had as objective the validation of the methods, according to the corresponding norms, and calculations of uncertainty of the results of the following parameters: Total Suspended Solids, pH, Hexavalent Chromium, Total Chromium, Ammoniacal Nitrogen, Chemical Oxygen Demand In the development of this work, the following techniques were used: Gravimetry, Potentiometry, Molecular Absorption Spectrometry, Titrimetry and Induced Coupled Plasma Atomic Emission Spectrometry, ICP-AES.
Descrição
Tese de mestrado, Química (Química Analítica), Universidade de Lisboa, Faculdade de Ciências, 2009
Palavras-chave
Validação de métodos Acreditação ISO 17025:2005 Efluente industrial Cálculo de incertezas Teses de mestrado - 2009