SUNJIN NEWSLETTER
Correlation between Aerodynamic diameter and TiO2 carcinogen issue?
By Kim, Sanguk
March 2022, NO.11
Hi, How are you?
In this week’s issue, we would like to provide information about the correlation between aerodynamic diameter and carcinogen issue of TiO2. Aerodynamic Diameter is the diameter of a sphere of the same particle density having the same terminal velocity in air or some other relevant fluid. It only reflects the sinking behavior of a particle under certain assumptions, so there is no direct correlation to the physical appearance of the particle.
In September 2021, ECHA published a guide on the classification and labeling of TiO2. According to the guide, the substance TiO2 must be classified as a carcinogen if inhaled when supplied on its own or in mixtures, where the substance or mixture contains 1% or more of TiO2 particles with an aerodynamic diameter ≤ 10μm.
Substances classified as carcinogen group must be labeled with the above pictogram GHS08.
Sunjin conducted testing in accordance with standard EN 15051-2+A1-2016 and concluded our products that contain TiO2 are not classified as carcinogen 2 group.
Areum Jeong / Regional Sales Manager
E-mail : sales1@sunjinbs.com