The study identified two standards relevant for cosmetics and textile respectively:

• CEN (2018). EN ISO 18473-2. Functional pigments and extenders for special applications – Part 2: Nanoscale titanium dioxide for sunscreen application (ISO 18473-2:2015). Available at: https://standards.cencenelec.eu/dyn/www/f?p=205:110:0::::FSP_PROJECT:65762&cs=1A977D07C598DE3023FFE894D3B993F21

(published by CEN/TC 298 – Pigments and extenders).
 

• CEN (2019). CEN/TR 17222. Textile products and nanotechnologies – Guidance on tests to simulate nanoparticle release – Skin exposure. Available at: https://standards.cencenelec.eu/dyn/www/f?p=CEN:110:0::::FSP_PROJECT,FSP_ORG_ID:37917,6229&cs=125C978D064AC99A7064E74456BA72A91

(published by CEN/TC 248 – Textiles and textile products).