Calibration Certificates - Accredited or Traceable

Accredited Certificates:
Laboratories under national calibration bodies can only issue accredited calibration certificates, and for Europe those bodies are again member of EA. EA - European co-operation for Accreditation

All accredited certificate have the rights to use the national logo for accreditation on the front page of the certificate. For Denmark the organisation is called DANAK. In practice an accredited certificate must be recognised in any country that are member of the EA organisation.

Traceable Certificates:
Companies or organisations issuing traceable certificates, must be able to document that all reference instruments used for the specific calibration is traceable to one or more primary reference laboratories. Traceable means in this case, an unbroken calibration chain from the instrument, over national accredited laboratories until the highest international level at primary reference laboratories.