MBW Calibration AG is a Swiss engineering company. Since 1962 it has been at the forefront of the development and production of chilled mirror dew point hygrometers, SF6 gas analyzers and temperature measurement instruments. MBW also supplies humidity generators for calibration and production systems. In 2011, MBW Calibration was accredited by the Swiss Accreditation Service to perform humidity and temperature calibration with uncertainties of ±0.05…0.40 °C dew/frost point and ±0.01°C temperature. This means that instruments can be supplied pre-calibrated to meet the requirements of ISO17025 for calibration laboratories and users requiring documented traceability. Through its long-term association with Thunder Scientific, MBW is also able to provide complete humidity/temperature generation and measurement systems for calibration laboratories and production systems.In 2014 MBW was appointed by METAS, the national metrology institute of Switzerland, as Designated Institute (DI) in the field of humidity and joined the European regional metrology organization, EURAMET as an associate member (A-DI). In 2015 the MBW quality system was granted confidence by the EURAMET technical committee TC-Quality. As the Designated Institute, it is MBW's responsibility to maintain and disseminate the Swiss national humidity standards. Our role is to support Swiss and European industry with technical expertise and continual improvement of calibration standards that are traceable to the SI units