ABSTRACT

When we talk about product verification, what we really mean is to check that product with a measuring device to determine if it meets a determined tolerance limit. How often do we do this without questioning whether that measuring device we just used is good enough to do the job? So you see, that measuring device also has a tolerance limit. And then, when we confirm it to determine its accuracy, the validating equipment also has a tolerance limit. There must be someone in every shop where measuring equipment is used, to take care of the gages, or very soon we are out of business, because we can’t accurately measure what we made. All this, of course, is a reminder that we must always know, ahead of time, whether our measuring and test equipment were calibrated and that they are suitable for the type of measurement we want to make. QOP 007 is the procedure that tells us how to go about controlling measuring and test equipment. This procedure controls not only company owned equipment, but also personal and customer owned or loaned measuring and test equipment.