Methods for the SI-traceable value assignment of the purity of organic compounds (IUPAC Technical Report)

Abstract The “purity” of an organic compound typically refers, in practice, to assignment the mass fraction content primary component present material. value calibrator material is ultimate source metrological traceability any quantitative measurement that a given matrix. may consist Certified Reference Material (CRM) whose purity has been assigned by CRM producer or laboratory choose value-assign extent necessary for their intended application using appropriately valid methods. This report provides overview approach, performance and applicability principal methods used determine including balance, NMR, thermal direct-assay techniques. A statistical section reviews best practice combination data, as upper limit values corresponding 100 % are approached how propagate standard uncertainty associated with values.