Gas sampling system Métaux Lourds

particlefor analysis

The isokinetic sampling system CleanAir allows the sampling of particulate and gaseous heavy metals. It is a variation of the basic model (dust), but in a version that includes nozzles and a Pyrex sheath with a bubbler compartment that houses specific glassware. This system allows a sample of gas or vapour to be taken continuously from a stack while maintaining the same velocity characteristics as at the point of sampling. Particles, including metallic ones, are deposited on a filter. Hot gases are conditioned in a series of cold bubblers. Gaseous heavy metals are absorbed by specific solutions. Condensates are trapped and a volumetric meter (DGM) measures the total volume of dry gas flow collected. The use of this system must be entrusted to a user trained in a specific methodology. The flow velocity at the sampling point must be known and communicated to CleanAir Europe for the feasibility of the project.