| Lacking a refractometer, the widely differing specific gravities of the two minerals would easily serve to distinguish them. |
| In its simplest form, grape sampling might consist of selecting some berries haphazardly from the vineyard and expressing juice into a refractometer to measure sugar content. |
| The eluents were analysed with a differential refractometer and the peak areas were integrated by a Spectra Physics 4290 integrator. |
| The Abbemat WR-MW digital refractometer enables quick and fully automatic measurements of the dispersion and Abbe number. |
| Calibration may be done by known solution value or by comparison to a refractometer. |
| Since the viscosity of the concentration depends on the temperature, it is recommended to use a refractometer for calibration and recheck. |
