I work for a small start up company, and we are trying to determine what we can get away with for the period in which we calibrate our production test equipment. Does anyone know who should define the calibration cycle of test equipment used in production? Is it the manufacturer of the test equipment, is it a ISO definition, can it be self defined by QA and if so, I'm guessing that some customers will complain if they notice a 5 year cal cycle on their calibration certificate which we provide to them.
So how is the best way to define a calibration cycle? For instance, we tie all are signal generators to a 10 MHz GPS disciplined rubidium standard which is said not to need calibration but still needs verification. So can we only send our rubidium reference for verification once a year but extend our signal generators out to 3 years?
Any thoughts?
Thomas