Indoor air. Part 14. Determination of total (gas and particle phase) polychlorinated dioxin-like biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/PCDFs). Extraction, clean-up and analysis by high resolution gas chromatography and mass spectrometry
State system for ensuring the uniformity of measurements. State verification schedule for measuring instruments of relative dielectric permittivity and the loss tangent in range of frequencies from 1 to 78,33 GHz
