English to Greek Science Biology (-tech,-chem,micro-) -

In many instances, properties of biological materials cannot be expressed in SI units as the molecular structure of their analytes is not exactly known and may be different in a reference material from that in a native sample of human origin (e.g. state of glycosylation of a protein); then the traceability chain ends at a lower level, e.g., at an arbitrary international unit (int. unit).