§ 721.11150 2-Pyrrolidinone, 1-butyl-.

(a) Chemical substance and significant new uses subject to reporting. (1) The chemical substance identified as 2-pyrrolidinone, 1-butyl- (PMN P-14-627, CAS No. 3470-98-2) 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)(1), (a)(2)(i) and (iv), (a)(3), (b), and (c). When determining which persons are reasonably likely to be exposed as required for § 721.63(a)(1), engineering control measures (e.g., enclosure or confinement of the operation, general and local ventilation) or administrative control measures (e.g., workplace policies and procedures) shall be considered and implemented to prevent exposure, where feasible. For purposes of § 721.63(a)(2)(i), butyl or Silver Shield gloves may be used. For purposes of § 721.63(b), the concentration is set at 1.0%.

(ii) Hazard communication. Requirements as specified in § 721.72(a) through (f), (g)(1)(i) and (ix), (g)(2)(i) through (iii) and (v), and (g)(5). Alternative hazard and warning statements that meet the criteria of the Globally Harmonized System and OSHA Hazard Communication Standard may be used. For purposes of § 721.72(e), the concentration is set at 1.0%.