³Ô¹Ïtv / ENGINEERING EXPLANATIONWorked example and model boundaryILLUSTRATIVE INPUTDeposit A 12 µm minus 3; deposit B 8 µm minus 2Lower sum = (12 - 3) + (8 - 2)20 µm nominal; 15 µm lower sumBoth deposits must exist at the same specified measurement location.This example is a model explanation, not a quoted limit or an approval.Conceptual diagram, not to scale. Dimensions and examples are not manufacturing limits.