DIN EN 16181 PDF Download

The DIN EN 16181 standard specifies a method for the determination of polycyclic aromatic hydrocarbons (PAH) in sludge, soil, and treated biowaste. The analysis is performed using gas chromatography-mass spectrometry (GC-MS) and high-performance liquid chromatography with UV-DAD/FLD detection (HPLC-UV-DAD/FLD). The standard covers a wide range of PAH contamination levels.

The limit of detection for the PAHs depends on various factors, including the equipment used, the quality of chemicals used for sample extraction, and the clean-up of the extract. Typically, a lower limit of application of 0.01 mg/kg (expressed as dry matter) can be achieved for each individual PAH, although it may vary depending on the instrument and sample.

Due to the variations in properties and contamination levels of PAHs in sludge, soil, and treated biowaste, it is not possible to have a general procedure. This standard provides decision tables based on the sample properties and the extraction and clean-up procedures to be used. Two general approaches are outlined: agitation procedure (shaking) and soxhlet/pressurized liquid extraction.

The method described in this standard is focused on the analysis of 16 specific PAH compounds. However, it is also possible to analyze other PAH compounds using this method, as long as their suitability has been proven.