Comment by ineedasername
1 day ago
Even minor changes to a chemical formulation can render previous process design useless or invalidate assumptions for a new formulation.
Changing the production or operating process in the face of changing inputs or desired outputs is the bread and butter of countless engineers.
I dont think that is a good argument. In chemical engineering world, the provider who just randomly changes formulations would be called "ureliable, shoody, crappy giving us something we not ordered".