Is the degreasing enough, or only nearly?
Temperature, time and chemistry can be traded against each other. This tool works out what each trade gives and takes and what is left on the part.
All three together
10 °C colder, a third less cleaner, a quarter less time: each one unremarkable on its own. The residual grease then sits about 38 times the target value.
Calculators
Tools and knowledge
Ten degrees too cold
That much cleaning effect is left, for thin oil. Usually the strongest lever, and the one most easily missed on the bath thermometer.
Dosing halved
Chemistry acts roughly as a square root: half the dosing takes away only a quarter of the effect. Of the three settings, the cleaner is the weakest.
Behind it stands a calculation model: a proposal for how Sinner's circle can be read as an equation for industrial cleaning and pre-treatment. It is a basis for further work, not a finished design tool and not a proof of cleanliness.
The parameters per soil type are guide values from the literature; the model is an approximation with a limited window of validity and awaits testing against measurements from a real bath. What it does and where it ends is set out under Manual.
What this tool is for
In aqueous degreasing four quantities work together: temperature, time, chemistry and mechanics. They can be traded against each other: less heat for more time, less cleaner for more flow. How much of what is usually a matter of experience.
The model uses a reference point every plant already has: the specification of the chemical supplier. Added to it is what that specification applies to: how soiled the parts are and how clean they have to become. Comparing this with the actual condition gives the answer that counts on the shop floor: how far the residual grease sits above the target value.