C is the concentration of lead emissions for the entire facility, mg/dscm (gr/dscf)
Ca is the concentration of lead emissions from facility “a”, mg/dscm (gr/dscf)
Qsda is the volumetric flow rate of effluent gas from facility “a”, dscm/hr (dscf/hr)
N is the total number of control devices to which separate operations in the facility are ducted
NR 440.52(5)(b)3.3. Method 9 and the procedures in s. NR 440.11 shall be used to determine opacity. The opacity numbers shall be rounded off to the nearest whole percentage. NR 440.52(5)(c)1.1. The emission rate (E) from a lead oxide manufacturing facility shall be computed for each run using the following equation: where:
E is the emission rate of lead, mg/kg (lb/ton) of lead charged
CPbi is the concentration of lead from emission point “i”, mg/dscm (gr/dscf)
Qsdi is the volumetric flow rate of effluent gas from emission point “i”, dscm/hr (dscf/hr)
M is the number of emission points in the affected facility
P is the lead feed rate to the facility, kg/hr (ton/hr)
K is the conversion factor, 1.0 mg/mg (7000 gr/lb)
NR 440.52(5)(c)2.2. Method 12 shall be used to determine the lead concentration (CPb) and the volumetric flow rate of the effluent gas. The sampling time and sample volume for each run shall be at least 60 minutes and 0.85 dscm (30 dscf). NR 440.52(5)(c)3.3. The average lead feed rate (P) shall be determined for each run using the following equation: where:
N is the number of lead pigs (ingots) charged
W is the average mass of a pig, kg (ton)
θis the duration of run, hr
NR 440.52 HistoryHistory: Cr. Register, January, 1984, No. 337, eff. 2-1-84; am. (2) (intro.), Register, September, 1990, No. 417, eff. 10-1-90; r. and recr. (5), Register, July, 1993, No. 451, eff. 8-1-93; correction in (5) (b) 1. made under s. 13.93 (2m) (b) 7., Stats., Register, November, 1999, No. 527; CR 06-109: am. (3) (a) 1., 2., 3., 5. and 6. and (5) (c) 1. Register May 2008 No. 629, eff. 6-1-08. NR 440.525NR 440.525 Metallic mineral processing plants. NR 440.525(1)(1) Applicability and designation of affected facility. NR 440.525(1)(a)(a) The provisions of this section are applicable to the following affected facilities in metallic mineral processing plants: each crusher and screen in open-pit mines; each crusher, screen, bucket elevator, conveyor belt transfer point, thermal dryer, product packaging station, storage bin, enclosed storage area, truck loading station, truck unloading station, railcar loading station and railcar unloading station at the mill or concentrator with the following exceptions. All facilities located in underground mines are exempted from the provisions of this section. At uranium ore processing plants all facilities subsequent to and including the beneficiation of uranium ore are exempted from the provisions of this section. NR 440.525(1)(b)(b) An affected facility under par. (a) that commences construction or modification after August 24, 1982, is subject to the requirements of this section. NR 440.525(2)(2) Definitions. As used in this section, terms not defined in this subsection have the meanings given in s. NR 440.02. NR 440.525(2)(a)(a) “Bucket elevator” means a conveying device for metallic minerals consisting of a head and foot assembly that supports and drives an endless single or double strand chain or belt to which buckets are attached. NR 440.525(2)(b)(b) “Capture system” means the equipment used to capture and transport particulate matter generated by one or more affected facilities to a control device. NR 440.525(2)(c)(c) “Control device” means the air pollution control equipment used to reduce particulate matter emissions released to the atmosphere from one or more affected facilities at a metallic mineral processing plant.