(13)Iron oxides and hydroxides (E 172) were last evaluated by the Scientific Committee for Food in 1975note. It was shown that only 1 % of the iron oxides and hydrated iron oxides were likely to become solubilised in the human gastrointestinal tract and therefore the Committee established an acceptable daily intake without specifying an upper limit. Hydroxypropyl methyl cellulose (E 464) was last evaluated by the Scientific Committee for Food in 1992note. A group acceptable daily intake ‘not specified’ was allocated for 5 of the modified celluloses. In 1983 the Committee allocated to the group of polysorbates (E 432-436) an acceptable daily intake at a level of 10 mg/kg bw/daynote. The Report from the Commission on Dietary Food Additive Intake in the European Unionnote concluded that polysorbates (E 432-436) may require a more realistic intake assessment based on actual use levels of the food additives. The European Food Safety Authority is expected to carry out that intake assessment during the re-evaluation of polysorbates (E 432-436) by the end of 2016 as foreseen by Commission Regulation (EU) No 257/2010note. By then, only insignificant contributors to the total intake of those substances should be examined for a potential extension of use.