Iron-cobalt Color Comparison Tester

Iron-cobalt Color Comparison Tester

Product Details:


Product Description

As an Authorized dealer we are engaged in providing the broad assortment of "Optical Instruments" for various applications.  Iron-cobalt Color Comparison Tester is designed to measure the colour of the varnish , thinner and other transparent liquids.

Take a certain amount of ferric chloride hydrochloric acid solution, potassium dichromate sulphuric acid solution, and cobalt chlorite hydrochloric acid solution, The above three solutions will be mixed together at a certain percentage in order to get 18 solutions with different colors and densities. Then put them into the tubes and sealed separately.

The visual method is used to assess via the comparison with a series of anvil standard tone scale solution,which is marked with the colour gradation number. The result is shown in 1-18.


  • Colorless glass tube with the internal diameter of Φ10.75±0.05mm and the height of 114±1mm.
  • Color comparison box(self-prepared)
  • The test must be taken at the temperature of 23±2℃


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