Laboratories participating in the monthly ring test organised by the Unione Italiana Vini (Verona, Italy) according to ISO 5725 (UNI 9225) rules and the International Protocol of Proficiency Testing for chemical analysis laboratories established by AOAC, ISO and IUPAC and ISO 43 and ILAC G13 guidelines.
Laboratoires participant aux essais mensuels organisés par Unione Italiana Vini (Verona, Italy) d'après la réglementation ISO 5725 (UNI 9225) et le 'International Protocol of Proficiency test for chemical analysis laboratories' établi par l' AOAC, l'ISO et l'IUPAC, et d'après les lignes directrices ISO 43 and ILAC G13.