All you need to know about liquid concentration and density measurements

Processing industries often handle liquids which need to be measured for product quality assurance. For comprehensive quality control, analysis of the liquid concentration is needed at different steps of the manufacturing process. 

Measuring liquid concentration or density in processing industries 

In food and beverage, sugar refining, chemical, and pulp industries, the change of liquid concentration takes place many times during the production process and has an impact on both the final product quality and the overall efficiency and sustainability of the process. Hence, liquid concentration measurement is a key parameter for controlling and adjusting the process to ensure the desired output.

In this eBook, we review two of the most commonly used methods of liquid concentration measurement - refractive index technology (refractometer) and density (Coriolis, ultrasonic, nuclear, and microwave). 

Download the eBook to learn how to choose the most suitable measurement solution based on 

  • process conditions 
  • installation options 
  • environmental impact 
  • accuracy, and 
  • the overall cost of the solution ownership.


Example of calculation for revenue optimization for a chemical plant:

If a chemical plant with an annual production of 2 million tons of NaOH improves the accuracy of its liquid concentration measurement by 0.1%, the customer can achieve a waste reduction of 2000 tons of product which equals to yearly savings of US $ 700,000–1,200,000 (2,000 tons x US $350-600*).

*price of NaOH/ ton from www.made-in-china.com, accessed on March 10, 2022.

Download the eBook in PDF by filling in the registration form.

Learn more about Vaisala process refractometer.

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