**4. Conclusions**

The control banding approach was used to suggest risk mitigation measures based on work station analysis and supplier information concerning the chemicals used.

Although there are, in most cases, still no legal occupational exposure limits, it is recommended that the company conduct exposure measurements for chemicals with nanoscale materials at the workplace as these limits can come up in the future.

The lack of information on specific nanomaterials and corresponding risks in safety data sheets is a major issue. To address this, it is suggested that suppliers include more detailed hazard and risk information in safety data sheets based on ISO/TR 13329:2012 recommendations [10].

Note that, since January 2023, within the European Union, it is required to include information concerning the nanoforms present in chemicals.

It is also recommended to measure occupational exposure to engineered nanomaterials; for instance, using the method used by Iavicoli et al. [17].

The use of other control banding tools is also suggested for future work, allowing a comparison of the results obtained.

It is worth noting that ISO/TS 12901-2 is currently under revision, so updating the present study in the future is also recommended.

**Author Contributions:** Conceptualization, D.R. and L.A.; methodology, D.R. and L.A.; investigation, D.R. and L.A.; resources, D.R. and L.A.; data curation, D.R.; writing—original draft preparation, D.R. and L.A.; writing—review and editing, D.R. and L.A. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Informed consent was obtained from all subjects involved in the study.

**Data Availability Statement:** Not applicable.

**Conflicts of Interest:** The authors declare no conflict of interest.

## **References**


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