NMi is a group of companies active in measurement, calibration, testing and certification. NMi maintains the Dutch measurement standards and provides services to meet the need of international traceability for businesses, laboratories and institutes. Our services include (gaseous) reference materials, proficiency testing, training, calibration services, consultancy and courses (e.g. measurement uncertainty).
Also NMi is the Europe's distributor of proficiency testing (PT) scheme's
for organic and inorganic analysis of wastewater, drinking water, soils and hazardous waste from Analytical Products Group, Inc. of the USA
Mr Peter van Otterloo