Definitions – Reference methods
Analysis of VOC at trace level in air

To ensure traceability of measurements, quality assurance and quality control procedures must be implemented. To this end, several tools have been developed within a regulatory framework:

• the definition of priority pollutants to be monitored, in accordance with the possibilities of measurement techniques;

• the determination of limit values which condition the various stages of the measurement protocol and the performance of the methods;

• the establishment of documented measurement standards, describing analytical procedures with minimum quality requirements, as well as calibration procedures.