What Is Defect PPM ?

Defect PPM stands for Defective Parts Per Million. It is a quality metric used in manufacturing and production to measure the number of defective units in a batch of one million produced units. This metric helps organizations quantify the quality and reliability of their production processes and products.

Defect PPM is calculated using the following formula:

For example, if a company produces 1,000,000 units of a product and 50 of them are found to be defective, the Defect PPM would be:

A lower Defect PPM indicates a higher quality production process with fewer defects, while a higher Defect PPM points to the need for quality improvements. Monitoring and reducing Defect PPM is crucial for maintaining high standards, customer satisfaction, and minimizing costs associated with defects and rework.

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