International Bureau of Weights and Measures (BIPM) published in International database new calibration capabilities (CMC) in the field of chemistry (gas analysis) of the Directorate of Measures and Precious Metals (DMDM), Group for metrology in chemistry. Capabilities of calibration in the field of chemistry (gas analysis) for measurement of the concentration of ozone in the atmosphere by applying new national standard - the standard photometer for ozone SRP 54 can be found at:
http://kcdb.bipm.org/appendixC/QM/RS/QM_RS_4.pdf

CMC (service under number 122) was published on April 7, 2016. Calibration capabilities for DC voltage of DMDM are significantly improved. Measurement uncertainties are up to 25 times better (less) than published so far. The new services of calibration of DC voltage standards are available to users. Traceability is ensured to the new Republic of Serbia DC voltage standard, and is directly related to the fundamental physical constants.