QUALITY ESTIMATION OF THE NEW TEST DUST PREPARED BY THE ABANDONED DESERT SAND

摘要

The abandoned sand of the desert in Xinjiang was collected to prepare the new test dust as standard sample to calibrate the particulate matter mass concentration monitor.The performance of the new test dust was evaluated by X-ray Fluorescence Spectrometer,Thermo Gravimetric Analyzer,scanning electron microscope and particle size analyzer,the results showed that the uniformity and stability of the new test dust was excellent,and its D50 and D90 were equal to (10.28±0.24)m and (30.67±1.33)^m respectively,and indicated that it could be used to calibrate the particulate matter mass concentration monitor as the succedaneum of ISO 12103-1 A2 test dust.