In the period of November 3-8, 2014, in the Laboratory for Reference Materials and Chemical Measurements DMDM, standard photometer for ozone NIST SRP 54 (Starndard Reference Photometer 54) has been installed, which is the new national standard in the field of measurements of ambient ozone concentration of the Republic of Serbia. By means of SRP 54, measuring capabilities of DMDM in the field of environmental protection and air are significantly improved, and thus ensured traceability of measurement results for the concentration of ozone in the air.

Manufacturer of SRP 54 is the National Institute for Standards and Technology, NIST, United States of America. NIST is the sole producer of these standards worldwide, and SRP systems are owned by a large number of NMIs, institutes for air quality monitoring, as well as the BIPM. National standard of the Republic of Serbia is 54th produced since the start of the program, and at this moment, the only one in the Balkan region.

Installation, validation and training for the use of SRP 54 in calibration of commercial ozone analyzers used for monitoring of air quality in Serbia and Croatia was held for the employees of DMDM. Participants of the training were from DMDM, Sector for development of metrology, Group for metrology in chemistry: Jelena Bebić, Dragan Nikolić, Nikola Škundrić and Luka Gažević, assistent director Boris Laštro, and guests from Meteorological and Hydrological Service of Republic of Croatia, Krunoslav Premec and Lucija Nuskern.

NIST representative was James Norris, who is the constructor of all the SRP systems so far constructed. The presentation was given by Jim Norris on the metrological traceability in the field of air quality monitoring.

More information on SRP systems at: http://www.nist.gov/mml/csd/sensing/srp.cfm