§721.3550. Dipropylene glycol dimethyl ether.

(a) Chemical substances and significant new uses subject to reporting. (1) The chemical substance identified as dipropylene glycol dimethyl ether (PMN P-93-507; CAS No. 111109-77-4) is subject to reporting under this section for the significant new uses described in paragraph (a)(2) of this section. This class 2 substance is exempt from the notification requirements of this rule if it contains less than 5 percent by weight of the specific isomer, propane, 2,2'-oxybis[1- methoxy- (CAS No. 189354-80-1), which is one of the possible products of the manufacturing process for PMN P-93-507.

(2) The significant new uses are:

(a)(2)(i) Protection in the workplace. Requirements as specified in §721.63, (a)(2)(i), and (a)(3).

(a)(2)(ii) Industrial, commercial, and consumer activities. Requirements as specified in §721.80(o).

(b) Specific requirements. The provisions of subpart A of this part apply to this section except as modified by this paragraph.

(b)(1) Recordkeeping requirements. The following recordkeeping requirements specified in §721.125, (b), (c), (d), and (e) are applicable to manufacturers, importers, and processors of this substance.

(b)(2) Limitations or revocation of certain notification requirements. The provisions of §721.185 apply to this section.

[62 FR 59583, Nov. 4, 1997]