EUROLAB, with its state-of-the-art accredited laboratories and expert team, provides precise and fast testing services within the scope of EN 13999-2 testing. This European standard specifies a method for the determination of single volatile organic compounds (VOC) and the total amount of volatile organic compounds (TVOCEN 13999) in the exhaust air of an emission test room after the application of a low solvent or solvent free substance. The method is based on the use of a solid sorbent with subsequent desorption and gas chromatographic analysis. The method is applicable to non-polar and slightly polar VOC measurement.
Sufficient test chamber air is drawn with a suitable flow from a sorbent tube (or several tubes in series) containing a solid sorbent. Volatile organic compounds (VOC) are captured by the sorbent tube, which will then be analyzed in the laboratory. The VOC is separated from the sampling tube and transferred by an inert carrier gas stream to a mass spectrometric detector (MS) and a flame ionization detector (FID) or simply a capillary gas chromatograph connected to a mass spectrometric detector.
Apparatus is required for the two-stage thermal desorption of sorbent tubes and the transfer of the desorbed vapors to a gas chromatograph via an inert gas stream. A typical apparatus includes a mechanism that holds the tubes to be desorbed as they are simultaneously heated and cleaned with the inert carrier gas.
The desorption temperature and time can be adjusted, as can the carrier gas flow rate. The apparatus may also include additional features such as automatic sample tube loading, leak testing, and a cold trap or other suitable device for concentrating the desorbed sample. The desorbed sample contained in the purge gas is directed to the gas chromatograph and capillary column via a heated transfer line.
The effect of storage on VOCs in indoor or room air is unknown, although some experience suggests that they may be stable for several months at room temperature. Samples should be analyzed as soon as possible to avoid possible changes.
EUROLAB assists manufacturers with EN 13999-2 test compliance. Our test experts, with their professional working mission and principles, provide you, our manufacturers and suppliers, the best service and controlled testing process in our laboratories. Thanks to these services, businesses receive more effective, high-performance and quality testing services and provide safe, fast and uninterrupted service to their customers.
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