Section 721.10497 - Substituted alkyl ester, hydrolysis products with silica and substituted silane (generic)(a)Chemical substance and significant new uses subject to reporting.(1) The chemical substances identified generically as substituted alkyl ester, hydrolysis products with silica and substituted silane (PMNs P-06-276 and P-06-279) are 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)(1), (a)(2)(i), (a)(2)(iv), (a)(3), (a)(4), (b) (concentration set 1.0 percent), and (c). The following National Institute for Occupational Safety and Health (NIOSH)-certified respirators with an assigned protection factor (APF) of at least 5 meet the requirements of § 721.63(a)(4) : NIOSH-certified air-purifying, tight-fitting full-face respirator equipped with N100 (if oil aerosols absent), R100, or P100 filters; NIOSH-certified air-purifying respirator equipped with a loose-fitting hood or helmet and high efficiency particulate air (HEPA) filters; NIOSH-certified powered air-purifying respirator equipped with a tightfitting facepiece (full-face) and HEPA filters; or NIOSH-certified supplied-air respirator operated in pressure demand or continuous flow mode and equipped with a hood or helmet, or tight-fitting facepiece (full-face).(ii)Industrial, commercial, and consumer activities. Requirements as specified in § 721.80 (j), (v)(1), (w)(1), and (x)(1) .(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) through (e) and (i) are applicable to manufacturers, importers, and processors of these substances.(2)Limitations or revocation of certain notification requirements. The provisions of § 721.185 apply to this section.(3)Determining whether a specific use is subject to this section. The provisions of § 721.1725(b)(1) apply to paragraph (a)(2)(ii) of this section.77 FR 58702, Sept. 21, 2012