Laboratory accreditation in Italy for reference solution production of sucrose in water

The accreditation of Chemifarm srl laboratory for the calibration of two characteristics on the same aqueous solution has been achieved. The process has been executed by the Italian accreditation body for calibration laboratories (SIT). This is the first example of a producer of certified reference solutions in Italy. The solutions are mixtures of sucrose in water at several concentrations and are characterised for refractive index in the range of 1.33299 to 1.38115 and for mass fraction of sucrose in the range of 0 to 30 (commercially expressed in Brix degrees). Both traceability paths, obtained through refractometric and gravimetric methods, are reported. Furthermore, the paper describes the approach adopted to match the criteria based on ISO Guide 34 and ILAC-G 12, the documents with requirements for certified reference material producers, in compliance with those of ISO/IEC 17025, the norm for the laboratory accreditation.