A set of data elements (system, component, kind-of-property) common to a set of particular properties, e.g. substance concentration of glucose in blood plasma. Information about identification, time and result is not considered.
See also: particular property
PAC, 1995, 67, 1563. 'Properties and units in the clinical laboratory sciences-I. Syntax and semantic rules (IUPAC-IFCC Recommendations 1995)' on page 1565 (https://doi.org/10.1351/pac199567081563)