Measuring ozone (O₃), DIN EN 14625

This European standard specifies a continuous ultraviolet photometric measurement method for determining the concentration of ozone in air. It sets out the performance criteria and specifies the minimum requirements for the qualification testing of photometric measuring instruments. It also covers the assessment of a measuring instrument’s suitability for use at a specific fixed measuring site with regard to the data quality requirements set out in Annex I to Directive 2008/50/EC and with regard to the requirements for sampling, calibration and quality assurance.