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Article | REF: AG6527 V1

Mechanisms of the detergency: products, methods, evaluations and controls

Author: Pierre MILLET

Publication date: January 10, 2017

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4. Numerical evaluation of detergency

4.1 Washing units

(Huret-Gochely-Moreau) – This is a "UL" unit which defines the efficiency of container washing, just as "UP" units define pasteurization units. These ULs depend on four factors:

  • the weather ;

  • temperature ;

  • NaOH concentration;

  • the physical application method (dipping or injection).

This is defined as follows.

  • Cc = concentration efficiency = cube root of C 2 .

    Examples

    C = 0.25, Cc = 0.4 – C = 0.50, Cc = 0.6...

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