Glossary / Z-Dimension


The Z-dimension (center height) is the height from the bottom of the cuvette to the center of its sample chamber.  In cases where the cuvette's polished window is very small (where usually the entire cuvette is black aside from the aperture window), it is critical that the Z-dimenion of the cuvette be the same as the height of the instrument's light beam.

Generally speaking, Z-dimension can be either 8.5, 15, or 20 mm depending on the instruments manufacturer.

Only certain cuvettes depend on the correct Z-dimension.  These cuvettes have Z-dimension (Zd) information provided in their data tables.

Not sure what Z-Dimension you need? View Precision Cells compatibility chart in our News Section