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Chemical Reflectance and Liquid Transmittance Color Measurement

Chemical Industry | 2018-04-20 13:21:18

Recently, we have done a project for a customer to measure chemical powder reflectance and liquid transmittance measurement with our benchtop spectrophotometer CS-820.


Benchtop spectrophotometer is all-in-on spectrophotometer. It can measure both reflectance and transmittance. It adopts dual optical path spectrum analysis technology which guarantees the instrument measuring accuracy and long term repeatability.


We will show the operation of CS-820 color spectrophotometer. The following are the customers sample pictures.


Chemical spectrophotometerChemical spectrophotometerChemical spectrophotometer


Now we will introduce how to measure chemical powder and liquid color.

Chemical Powder Reflectance Color Measurement

Step 1. Switch on the instrument, and then calibrate it.


Step 2. Step 3. Open the Color QC software. Connect the instrument with PC by USB cable. Put the sample on the measurement aperture and fix it with the fixture.

Chemical spectrophotometer


Step 3. In order to make sure the accuracy, we will measure 3 points on one sample. After measurement, we can see the test result directly on the software.

Chemical spectrophotometer


Liquid Transmittance Color Measurement

Step 1. Choose Transmission on software.

Chemical spectrophotometer


Step 2. Do transmittance calibration on the instrument. (White calibrations is done with glass cell and distill water and black calibration is with calibration cover.)

Chemical spectrophotometerChemical spectrophotometer

White Calibration     Black Calibration

Chemical spectrophotometer


Step 3. Measure the samples and then get color value on software directly.

Chemical spectrophotometer


Spectrophotometer can help to get color value faster. It will save time and higher accuracy then visual method.


How to measure liquid Gardner color value?