id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-032174-qu5mm9r1	Xu, Zhonglin	Sampling Theory	2013-08-14		.txt	text/plain	11556	743	70	The reading value of the flowmeter 20 L/min is the indication value in the calibration condition, so the actual flow rate q 1 through the flowmeter should be According to the actual collected particle concentration 18.31 L/min after correction, the calculated indoor particle concentration is 371.4#/L, so the indoor air cleanliness level does not reach Class 7. The example of the application of Fig. 16 .10 is shown as follows: When the particle counter with small sampling volume 2.83 L/min is used to detect particles with diameter 5 μm (only for this particle size) from airflow with velocity 0.5 m/s, should any correction be made? For the common particle counters with large, medium, and small sampling flow rates at home and abroad, Reynolds numbers Re in the sampling tube are shown in Table 16 .3. So the following requirement must be satisfied: For particle counter with medium and low sampling flow rates, calculation results are shown in Table 16 .4.	./cache/cord-032174-qu5mm9r1.txt	./txt/cord-032174-qu5mm9r1.txt