1. Documentation provided to EFSA
2. Association of the European Self‐Medication Industry (AESGP) , 2013. Data on usage levels of iron oxides and hydroxides (E 172) in foods, in response to the EFSA call for food additives usage level and/or concentration data in food and beverages intended for human consumption. Submitted on 9 September 2013. Updated 20 February 2015.
3. Bayer , 1977a. Bäyer. Institut für Toxikologie. Wuppertal‐Elberfeld. Akute orale Toxizität. Eisenoxidgelb 920, FeOOH. 17.1.1977. Unpublished study report provided by Verband der Mineralfarbenindustrie e.V. October 2011.
4. Bayer , 1977b. Bäyer. Institut für Toxikologie. Wuppertal‐Elberfeld. Akute orale Toxizität. Eisenoxidrot 130, Fe2O3. 17.1.1977. Unpublished study report provided by Verband der Mineralfarbenindustrie e.V. October 2011.
5. Bayer , 1977c. Bäyer. Institut für Toxikologie. Wuppertal‐Elberfeld. Akute orale Toxizität. Eisenoxidschwarz 318, Fe3O4. 17.1.1977. Unpublished study report provided by Verband der Mineralfarbenindustrie e.V. October 2011.