Uncertainty of Peroxide Value Determination in Fat in Follow up Formula
2004
Kim, S.H. (Namyang Dairy Products Corporation, Gongju, Republic of Korea), E-mail: [email protected] | Kwack, B.M. (Namyang Dairy Products Corporation, Gongju, Republic of Korea) | Ahn, J.H. (Namyang Dairy Products Corporation, Gongju, Republic of Korea) | Kong, U.Y. (Namyang Dairy Products Corporation, Gongju, Republic of Korea)
Peroxide values (PV) of fat from follow up formula were determined using redox-potentiometric titration method and standard method, which is based on KI oxidation by hydroperoxides and volumetric titration of liberated iodine, and their uncertainties were compared. Uncertainty sources in measurand, such as sample weight, sodium thiosulfate concentration, and titer, were identified and used as parameters for combined standard uncertainty based on Guide to the expression of uncertainty in measurement and Draft EURACHEM/CITAC Guide.
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