Wagner, I can give you a list of ISO-9000 suppliers that I simply would not buy a single resistor from! Robert is right, ISO-9000 simply means they need to document their screw-ups. Though which form do you use when you screw-up documenting your screw-up? You should not give preference to a company simply because they are ISO-9000 certified. By doing so, you are penalising many smaller companies who probably do a better job at a more efficient price - companies not unlike your own. We have our own quality assurance system and refuse to have one enforced on us by any outside party. When dealing with (supplying to) an ISO-900x certified company for the first time, they usually send us a form to fill out asking something like - "Are you certified?, If not, when will you be?, If no plans, why not?" I use this form to state my objections, and we never hear another word. They continue to buy from us - even though we are not certified. Regards, Sean -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.