sampling hood

Active sources

Have a defined gas flow emitted from source.  Example includes a biofilter or aerated pond.  According to VDI3880, an active source is defined by an average flow velocity of 30m/h…

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Flux Chamber

In the case of passive sources, a device is required to perform a direct measurement of the source, from either a solid or liquid surface.  Coverings or ‘hoods’ are usually…

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Sampling hood

Is a device used to perform odour measurements on active sources such as biofilters.  It essentially is composed of a conical or pyramidal shape that encloses an area of the…

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Static flux hood

In the case of passive sources, a device is required to perform a direct measurement of the source.  Coverings or ‘hoods’ are usually used to achieve this and one such…

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