Accreditation is formal third-party recognition by an authoritative body of a laboratory's competence, both to work to specified standards and to carry out specific tasks that are defined in the scope of the accreditation. The laboratory’s management and quality systems are assessed during the accreditation process, as is the laboratory's technical competence to carry out the specific tasks. The main standard used for accrediting calibration and testing laboratories globally is ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories.

Calibration Laboratories: Electro-Technical, Mechanical, Pressure, Thermal .

ISO/IEC 17025 enables laboratories to demonstrate that they operate competently and generate valid results, thereby promoting confidence in their work both nationally and around the world.

It also helps facilitate cooperation between laboratories and other bodies by generating wider acceptance of results between countries. Test reports and certificates can be accepted from one country to another without the need for further testing, which, in turn, improves international trade.