Certificate of Conformity vs Certificate of Analysis

[restofe]

Hello,

Our company is a commercial rubber manufacturing company (not medical, military or aerospace) that is TS 16949 certified. Can anyone tell me if "Certificates of Conformity" or "Certificates of Analysis" are required of our suppliers? What do other companies require of their suppliers?

Thanks!

 

[rclanzillotto]

Hi, in either case the answer is found in your requirements for the components. If the composition of the supplied material (I assume we are talking about a material) is critical then you'd need to consider ways of confirming you are receiving the correct composition. This may lead you to the requirment for these types of certs. Regards

 

[RandT]

They are only useful if they have meaning. Too many times, those types of documents are just regurgitated forms that either just have a new lot number and date added, or are even pre filled out ahead of time and put in the shipment.

I remember many years ago (before I knew better), that I would request steel certs. on material purchased several months earlier and they were supplied with dates that didn't correspond to reality.