According to the above formulas, under the condition of the certain liquid layers thickness and incident lights strength, as long as test the strength of transmit light which goes through the liquid, so we can calculate the consistency of the solution.Technical Parameters:Method: kinetic.End-point, linearity, plus time, non linearity plus time, absorbency, sample blank, multi-standard, velocity, calculation, two-point, double wavelength etc.7 wavelengths optic system avoiding outer disturbance.Wavelength range: 340-700nmQuality control: Quality control for all tests, statistic and print quality control parameters automatically with QC curves. Every test can do high medium low three groups quality control.Program: add or delete test items easily according to the condition. Modify the test parameters. Display dynamic curves at real time.