DEFECTS PER UNIT (DPU)

The average number of defects that have occurred relative to the sampling population.

Equation:

DPU = Total Number of Defects / Sampling Population

Example:

A sample population consists of 1000 units. Of those 1000 units, there were 650 defects.

DPU = 650 / 1000 = .65 defects per unit