{"tema_id":"882","string":"DF: set of operations that establish, under specified conditions, the relationship between values of quantities indicated by a measuring instrument or measuring system, or values represented by a material measure or a reference material, and the corr","created":"2025-09-12 07:02:52","code":"http:\/\/digilab.jjan.eu\/Thesauri\/OIML\/xml.php?skosTema=890"}