ISO/IEC 17025 was first issued in 1999 by the International Organization for Standardization (ISO) and the International Electro technical Commission (IEC). It is the single most important standard for calibration and testing laboratories around the globe. Laboratories that are accredited to this international standard have demonstrated that they are technically competent and capable to produce precise and accurate test and/or calibration data.
ISO/IEC 17025:2015 specifies the general necessity for the competence to carry out tests and/or calibrations, including sampling. It covers testing and calibration performed using standard methods, non-standard methods, and laboratory-developed methods.