Field Notes


FASTENER QUALITY MEASURED IN PPM How do you report your internal or external reject rate? Chances are you use a metric called PPM or Parts Per Million. In other words, PPM is a measurement of number of rejected parts for every one-million parts produced (internal metric) or shipped (external metric). By stating reject rate in terms of a generally accepted ratio you can compare your performance ...

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Are PPAP's Necessary?

DOES THIS PART NEED A PPAP? Does this part need a PPAP (Production Part Approval Process for those who stumbled upon this article by accident)? For many quality professionals this is one of the first questions asked of customers when a part changes or a new part is in the works. The answer to this question can most often be found in the customer’s Supplier Quality Manual or some other similar ...

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