[Retracted] Detection of Particle Concentration and Particle Size Based on Aerodynamic Particle Size Spectrometer

Table 5

Particle size distribution of standard dust A2.

Size (μm)	Cumulative volume percentage
1	2.5–5.5
2	10.5–12.5
3	18.5–22.0
4	25.5–29.5
5	30.1–36.0
7	41.0–45.0
10	50.0–54.0
20	70.0–74.0
40	88.0–99.0
80	99.5–100
120	100