METHOD FOR TESTING PERFORMANCE OF FINE DUST MEASURING DEVICE AT ROOM TEMPERATURE AND HIGH HUMIDITY ENVIRONMENTAL CONDITIONS

摘要

Disclosed is a method for evaluating the performance of a simple measuring device for fine dust in room temperature and high humidity environmental conditions. This method involves connecting a reference measuring device to the sample tube, supplying clean air to the chamber using an air supply unit that supplies clean air that does not contain fine dust, and the count value of the connected reference measuring device fluctuates from a predetermined value. Maintaining the interior of the chamber clean for a predetermined period of time until it is maintained without, connecting a simple measuring device for fine dust to the sample tube, and setting the interior of the chamber to room temperature and high humidity environmental conditions by controlling the moisture supply unit and the temperature control unit. , By operating a blower to introduce test air containing fine dust into the chamber, until the variation of the measured value of the standard measuring device and the measured value of the simple fine dust measuring device is within a predetermined value under room temperature and high humidity environment conditions. After performing the stabilization process and the measured value being stabilized, the performance evaluation of the fine dust measuring device is performed by comparing the measured value measured by the standard measuring device and the measured value measured by the fine dust measuring device under room temperature and high humidity environmental conditions. Including the step of performing.