Leak Detection Diffusion Chamber (LDDK) to detect leaks in buried containers or valves that carry gasses.

摘要

A soil disposable device having a diffusion chamber (10) that collects gases from the soil or the gaseous substances introduced into the soil. The gases diffused into the diffusion chamber are accessible for analysis via a removal line (8): a) pumped by photoionization / flame ionization detectors, b) aspirated with syringes for gas chromatographs or mass spectrometers and b) supplied for substance-specific test tubes, characterized in that for the removal of gas a line for the admission of air (4) is opened in order to supply the gas / air content of the diffusion chamber (10) via a second line (8) to a measuring device (2) without generating a chamber negative pressure.