Gas sampler Echo TUBE

for environmental analysis

Echo Tube Sequential Sampler for Gaseous Compounds The ECHO TUBE Sequential Sampler for Gaseous Compounds has been studied and designed for sequential sampling on vials for gaseous compounds at flowrate from 100 to 200 cc/min, and to comply to regulation request on sampling field, prescribed in the EN 14662-2:2005 “Ambient air quality – Standard method for measurement of benzene concentrations – Part 2: Pumped sampling followed by solvent desorption and gas chromatography” Formaldehyde ECHO TUBE with additional options, meets all the indications of the norms EN ISO 16000-3 and EPA TO 11-A about indoor and outdoor formaldehyde sampling. Temperature regulation system and post-sampling maintaining (option). The regulations require, in order not to alter the sample and affect the analytical result, to heat the vial if temperature drop below 10°C. Also, sampling completed, the vials have to be cooled at 4°C. This procedure is particularly suitable in case of 3-hour sampling within 24-hour day. Line ventilation before and after sampling (option). Before starting the sampling, an automatic system allows ventilation and conditioning of the incoming supply air line. At the next sampling, the operation is repeated. Heated line (option). The external sampling tube is made of AISI 316L stainless steal and heated to max 50°C (option) as required by standard. This is particularly suitable for low temperature, even below 0°C.