Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/582
Título: Evaluation of measurements uncertainty for the moisture and dry matter mass fraction in industrial residues and sludges
Autor: Mouro, Filomena C.
Calisto, Sandra C.
Trancoso, Maria Ascensão
Palavras-chave: Uncertainty
Moisture
Dry matter
Mass fraction
Data: 6-Set-2009
Citação: Mouro, Filomena C.; Calisto, Sandra C.; Trancoso, Maria Ascensão. Evaluation of measurements uncertainty for the moisture and dry matter mass fraction in industrial residues and sludges. Comunicação apresentada ao: XIX IMEKO World Congress: Fundamental and Applied Metrology, Lisbon, 2009, September 6-11, p. 2630-2633
Resumo: Moisture mass fraction, , and dry matter mass fraction, wOH2wDM,, are analytical parameters required by environmental European regulations. The metrological quality, namely measurement uncertainty, comply the fitness for purpose and enhances the comparability of analytical results. In this work, the component by component approach for measurement uncertainty estimation of and wOH2wDM is reported and the input quantities assessed. The measurement uncertainty of method’s precision, under within-laboratory reproducibility conditions, f(precision)Rw, was the only significant influence quantity when > 0,10 g gOH2w-1 for both ranges. In case of ≤ 0,10 g gOH2w-1, the mass of the capsule containing sample after the drying step, m(C+S)dry, has also a relevant contribution. Simplified models are proposed.
URI: http://hdl.handle.net/10400.9/582
Aparece nas colecções:UPCS - Comunicações em actas de encontros científicos internacionais

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