Bar codes are something most of us never think about. If you look in your fridge or kitchen right now, you will find that just about every package you see has a bar code printed on it. In fact, nearly every item that you buy in a grocery shop, supermarket or superstore has a bar code on it somewhere.
For newly produced, imported and after repaired measuring instruments that were only verified at the position of installation and operation, enterprises using measuring instruments must register verification initially or unusually with organizations able to verify this kind of instruments.
Verifying organizations are responsible for receiving and meeting requirements on verifying measuring instruments of the enterprises suitable to verifying competence that was certified or authorized. If measuring instruments exceed one''''s competence, verifying organization guides enterprises to register at the nearest verifying organizations that are able to verify these measuring instruments.