Section 721.10601 - Lanthanum lead titanium zirconium oxide(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substance identified as lanthanum lead titanium zirconium oxide (PMN P-11-273; CAS No. 1227908-26-0) is subject to reporting under this section for the significant new uses 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)(6)(i), and (c) . The following National Institute for Occupational Safety and Health (NIOSH)-certified respirators with an assigned protection factor (APF) of at least 50 meet the requirements of § 721.63(a)(4) : (A) NIOSH-certified air-purifying, tight-fitting half-face respirator equipped with N100 (if oil aerosols absent), R100, or P100 filters.(B) NIOSH-certified air-purifying, tight-fitting full-face respirator equipped with N100 (if oil aerosols absent), R100, or P100 filters.(C) NIOSH-certified powered air-purifying respirator equipped with a loose-fitting hood or helmet and high efficiency particulate air (HEPA) filters.(D) NIOSH-certified powered air-purifying respirator equipped with a tight-fitting facepiece (either half-face or full-face) and HEPA filters.(E) NIOSH-certified supplied-air respirator operated in pressure demand or continuous flow mode and equipped with a hood or helmet, or tight-fitting facepiece (either half-face or full-face).(ii)Industrial, commercial, and consumer activities. Requirements as specified in § 721.80(j) (piezoelectric ceramics for active and passive underwater acoustic systems).(iii)Release to water. Requirements as specified in § 721.90 (a)(4), (b)(4), and (c)(4) (Where N = 8, and 8 is an aggregate of releases for the following substances: Lead strontium titanium zirconium oxide (PMN P-11-270; CAS No. 61461-40-3); Calcium cobalt lead titanium tungsten oxide (PMN P-11-271; CAS No. 1262279-31-1); Calcium cobalt lead strontium titanium tungsten oxide (PMN P-11-272; CAS No. 1262279-30-0); Lanthanum lead titanium zirconium oxide (PMN P-11-273; CAS No. 1227908-26-0); and Lead niobium titanium zirconium oxide (PMN P-11-274; CAS No. 56572-83-9)).(b)Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph.(1)Recordkeeping. Recordkeeping requirements as specified in § 721.125 (a), (b), (c), (d), (i), and (k) are applicable to manufacturers, importers, and processors of this substance.(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section. 77 FR 61153 , Oct. 5, 2012