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

Table 5

Dustiness-objectives, contribution of this study and perspectives. Level of effort: moderate, significant, very significant.

Objectives (cf.1)	Contribution of this study	Perspectives
Representativeness	The study of time monitoring of the mass concentration was instigated. The emission of matter seems to be concentrated over the first 152 (10) minutes.; These characteristics orientate the representativeness towards short processes of a few minutes.; The transformation of the powder observed upon increase in speed favours remaining within a moderate speed (1500 rpm).	Identify processes best corresponding to these characteristics, and implement the device as it is.
Mesurands	Implementation of total sampling (without size selection) and analysis of the total carbon.; Real time monitoring: feasibility of measurement by microbalance.	Introduction of samplers on filter with regulatory cut-off (inhalable, thoracic, alveolar).; Continue integration of the microbalance.; Implement a simple indicator in parallel (COP or carbon monitoring).
Easy-to-use	The device implies its implementation at a secure station.; A relatively simple protocol has been implemented.	Creation of a pre-normative protocol, drawing on existing standards.