Standard toluene emission source for calibrating chamber testing system

Chamber system is increasingly used as an environment controlled method to evaluate furniture and building material VOCs emission characters. However there is a less of effective standard VOC emission source to calibrate the veracity and accuracy of chamber testing system. A kind of liquid-film benzene standard emission source with constant emission rate is introduced in this paper. Emission performance of the source was tested for 47 days to validate the stabilities of emission parameters, which can be used to calibrate chamber system.