https://phaidrabg.bg.ac.rs/o:30412 Srpsko hemijsko društvo info:eu-repo/semantics/article All rights reserved referentni materijali, kalibracija Referentni materijali application/pdf 1306175 bytes Hemijski pregled 45(1) srp Nedić, Olgica ABSTRACT Reference materials (RM) are used for calibrating apparatus, validating analytical methods and secondary RM, for professional laboratory testing. Although they are becoming an integral part of analytical investigations, RMs are still not widely used and there are considerable problems that analysts account when they decide to use them. 2004