§ 721.4610 Mixed metal oxides (generic).
(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified generically as mixed metal oxides (PMN P-98-0002) is subject to reporting under this section for the significant new use described in paragraph (a)(2) of this section.
(2) The significant new uses are:
(i) Protection in the workplace. Requirements as specified in § 721.63 (a)(4), (a)(5)(i), (a)(6)(i), (b) (concentration set at 0.1 percent), and (c). As an alternative to the respiratory requirements listed here, a manufacturer, importer, or processor may choose to follow the NCEL provisions listed in the TSCA 5(e) consent order for this substance. The NCEL is 0.05 mg/m as an 8-hour time weighted average verified by actual monitoring data.