Evidence of a Systematic Underestimation of Free Sulfur Dioxide by the Aeration-Oxidation Method Approved by Oiv

Medientyp: E-Book

Titel: Evidence of a Systematic Underestimation of Free Sulfur Dioxide by the Aeration-Oxidation Method Approved by Oiv

Beteiligte: Cagnasso, Iris [Verfasser:in]; Sacco, Alessio [Verfasser:in]; Petrozziello, Maurizio [Verfasser:in]; Bonello, Federica [Verfasser:in]; Aspraudi, Andriani [Verfasser:in]; Giacosa, Simone [Verfasser:in]; Rossi, Andrea Mario [Verfasser:in]; Durbiano, Francesca [Verfasser:in]

Erschienen: [S.l.]: SSRN, [2022]

Umfang: 1 Online-Ressource (15 p)

Sprache: Englisch

DOI: 10.2139/ssrn.4019349

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Beschreibung: The aeration-oxidation method stated by the International Organisation of Vine and Wine (OIV) in the Resolution OIV-OENO 591A-2018 is internationally recognized as one of the election technique for free SO 2 quantification in wine.The present work highlighted that an underestimation of the SO 2 content is obtained by applying this 591A method. A measurement uncertainty evaluation on the basis of the Guide to the Expression of Uncertainty in Measurement and of the Monte Carlo simulations was carried out on a wine simulant solution with a known concentration of free SO 2 , prepared by gravimetry. By comparison between this 591A and the gravimetric methods, the obtained data resulted to be not consistent. To confirm this underestimation, measurement experiments were conducted by nine specialized laboratories on the same sample and none of which achieved total recovery

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