We are Exporting, Manufacturing, Distributing, Supplying and Trading an array of Abbe Refractometers in Navi Mumbai, Maharashtra, India that is a bench-top device for the high-precision measurement of an index of refraction.There is also the Rayleigh Refractometer used (typically) for measuring the refractive indices of gases. In veterinary medicine, a refractometer is used to measure the total plasma protein in a blood samples. In drug diagnostics, a refractometer is used to measure the specific gravity of human urine Turn on the light source.
Choose the liquid sample.
Water is used first to calibrate the instrument.
Turn the refractometer scale knob to get the clear interface between the illuminated and dark regions.
Read the index of refraction using the telescope scale.