This video demonstrates how to perform a Single & Two Point Calibration on a Rudolph J157 Refractometer. The J157 is designed as a high accuracy refractometer for food and water based chemical applications. The instrument can read to ±0.00004 RI / ±0.03 BRIX making it more accurate and reproducible than 4 decimal place wide range chemical refractometers.
Materials used for calibration:
- Distilled Water
- Acetone
- Cargille Calibration Fluid
- Paper Towel
For further information about the line of Rudolph Research Analytical refractometers please visit our website at :
www.rudolphresearch.com