Refractometer calibration kits-
Bromonaphthalene nD = 1.51678 Refractive index standard kit is the calibration standards are for the calibration of refractometers. This refractive index standard kit is measured by means of an Abbe type refractometer or other type refractometers.
Stable solutions with minimum shelf life of 3 years
Each standard kit is packed with a Technical Data Sheet
Applicable at 20°C measuring temperature
According to EUROPEAN PHARMACOPOEIA 2.2.6 Refractive index
Including bottle of 2ml 1-Bromonaphthalene and glass block with nD=1.51678