NR 440.66(3)(a)(a) Each owner or operator subject to the provisions of this section shall comply with the requirements of s. NR 440.62 (3) (a) to (j) as soon as practicable, but no later than 180 days after initial startup.

NR 440.66(3)(c)(c) An owner or operator may apply to the administrator for a determination of equivalency for any means of emission limitation that achieves a reduction in emissions of VOC at least equivalent to the reduction in emissions of VOC achieved by the controls required in this section. In doing so the owner or operator shall comply with requirements 40 CFR 60.484, as in effect on July 1, 1994, and provide notice to the department of any determination of equivalency approved by the administrator.

NR 440.66(3)(d)(d) Each owner or operator subject to the provisions of this section shall comply with the provisions of s. NR 440.62 (6) except as provided in sub. (4).

NR 440.66(3)(e)(e) Each owner or operator subject to the provisions of this section shall comply with the provisions of s. NR 440.62 (7) and (8).

NR 440.66(4)(a)(a) Each owner or operator subject to the provisions of this section may comply with the following exceptions to the provisions of s. NR 440.62.

NR 440.66(4)(b)1.1. Compressors in hydrogen service are exempt from the requirements of sub. (3) if an owner or operator demonstrates that a compressor is in hydrogen service.

NR 440.66(4)(b)2.2. Each compressor is presumed not to be in hydrogen service unless an owner or operator demonstrates that the piece of equipment is in hydrogen service. For a piece of equipment to be considered in hydrogen service it shall be determined that the percent hydrogen content can be reasonably expected always to exceed 50% by volume. For purposes of determining the percent hydrogen content in the process fluid that is contained in or contacts a compressor procedures that conform to the general method described in ASTM E260-96, E168-92 or E169-93, incorporated by reference in (2) (a) 75., 73. and 74., respectively, shall be used.

NR 440.66(4)(b)3.a.a. An owner or operator may use engineering judgment rather than procedures in subd. 2. to demonstrate that the percent content exceeds 50% by volume. When an owner or operator and the department do not agree on whether a piece of equipment is in hydrogen service however, the procedure in subd. 2. shall be used to resolve the disagreement.

NR 440.66(4)(b)3.b.b. If an owner or operator determines that a piece of equipment is in hydrogen service the determination can be revised only after following the procedures in subd. 2.

NR 440.66(4)(c)(c) Any existing reciprocating compressor that becomes an affected facility under provisions of s. NR 440.14 or 440.15 is exempt from s. NR 440.62 (3) (c) 1., 2., 3., 4., 5. and 8., provided the owner or operator demonstrates that recasting the distance piece or replacing the compressor are the only options available to bring the compressor into compliance with the provisions of s. NR 440.62 (3) (c) 1., 2., 3., 4., 5. and 8.

NR 440.66(4)(d)(d) An owner or operator may use the following provision in addition to s. NR 440.62 (6) (e): Equipment is in light liquid service if the percent evaporated is greater than 10% at 150°C as determined by ASTM D86-96, incorporated by reference in s. NR 440.17 (2) (a) 7.

NR 440.66 HistoryHistory: Cr. Register, September, 1986, No. 369, eff. 10-1-86; am. (1) (c) (2) (intro.), (3) (c), (4) (b) 2. and (a), Register, September, 1990, No. 417, eff. 10-1-90; am. (3) (c), Register, December, 1995, No. 480, eff. 1-1-96; CR 06-109: am. (title), and (4) (b) 2. and (d) Register May 2008 No. 629, eff. 6-1-08.

NR 440.67(1)(a)(a) Except as provided in par. (b), the affected facility to which the provisions of this section apply is each solvent-spun synthetic fiber process that produces more than 500 Mg (551 ton) of fiber per year.

NR 440.67(1)(b)(b) The provisions of this section do not apply to any facility that uses the reaction spinning process to produce spandex fiber or the viscose process to produce rayon fiber.

NR 440.67(1)(c)(c) The provisions of this section apply to each facility as identified in par. (a) that commences construction or reconstruction after November 23, 1982. The provisions of this section do not apply to facilities that commence modification but not reconstruction after November 23, 1982.

NR 440.67(2)(2) Definitions. As used in this section, terms not defined in this subsection have the meanings given in s. NR 440.02.

NR 440.67(2)(a)(a) “Acrylic fiber” means a manufactured synthetic fiber in which the fiber-forming substance is any long-chain synthetic polymer composed of at least 85% by weight of acrylonitrile units.

NR 440.67(2)(b)(b) “Makeup solvent” means the solvent introduced into the affected facility that compensates for solvent lost from the affected facility during the manufacturing process.

NR 440.67(2)(c)(c) “Nongaseous losses” means the solvent that is not volatilized during fiber production and escapes the process and is unavailable for recovery or is in a form or concentration unsuitable for economical recovery.

NR 440.67(2)(d)(d) “Polymer” means any of the natural or synthetic compounds as usually high molecular weight that consist of many repeated links each link being a relatively light and simple molecule.

NR 440.67(2)(e)(e) “Precipitation bath” means the water, solvent, or other chemical bath into which the polymer or prepolymer (partially reacted material) solution is extruded and causes physical or chemical changes to occur in the extruded solution to result in a semihardened polymeric fiber.

NR 440.67(2)(f)(f) “Rayon fiber” means a manufactured fiber composed of regenerated cellulose as well as manufactured fibers composed of regenerated cellulose in which substituents have replaced not more than 5 percent of the hydrogens of the hydroxyl groups.