Experimental Study of the Aerosolization from a Carbon Nanotube Bulk by a Vortex Shaker

Table 4

Aerosolized particle mass (μg)/filter for different parameterizations (rotational speed, geometry.). The mass concentration (mg/m³) can be obtained by dividing the masses in μg by 300. “𝑛” indicates the number of tests.

Rotational speed (rpm)	60 mL tube								30 mL tube
	Without chamber				With chamber				Without chamber
	μg	𝑛#	Average; μg	Rel. Std. Dev.; %	μg	𝑛#	Average; μg	Rel. Std. Dev.; %	μg	𝑛#	Average; μg	Rel. Std. Dev.; %
1000	148; 361; 469; 296	4	319	42%
1250	823	1	823	/	278; 480; 78	3	279	72%
1500	1723; 973; 1128; 868	4	1173	33%					2680; 4405; 2882; 3149; 1862	5	2996	31%
1750					389; 765; 553	3	569	33%
2000	1282; 1702; 2602	3	1862	36%