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
Maintenance documentation for aeronautical engineering. Structure, statement, execution and contents of registration certificates, labels and air worthiness certificates