Assessment of Nonconforming Levels In Parts Per Million (PPM)(STABILIZED May 2016)
EIA554_2
This standard is intended to provide a uniform method of determining proportion nonconforming in
finished components and to provide a standardized definition of the quality index referred to as PPM.
The method used here is primarily directed at components whose production or procured volume is
large enough, during some predefined sampling period, to give statistically meaningful information.