Section NR 438.02 - Definitions The definitions contained in ch. NR 400 apply to the terms used in this chapter. In addition, the following definitions apply to the terms used in this chapter:
(1a) "Condensable PM" means a material that is vapor phase at stack conditions but that condenses or reacts upon cooling and dilution in the ambient air to form solid or liquid PM immediately after discharge from the stack. Note: Condensable PM, if present from a source, is typically in the PM 2.5 size fraction and, therefore, all of it is a component of both primary PM 2.5 and primary PM 10.
(1e) "Facility" means all stationary sources emitting air contaminants which belong to the same industrial grouping, are located on one or more contiguous or adjacent properties, and are under the control of the same person, or persons under common control. Emissions resulting from loading, unloading or stockpiling materials to or from vessels or vehicles while at a facility shall be considered as part of the facility's emissions. Air contaminant sources, other than transportation related activities, shall be considered as part of the same industrial grouping if they are classified under the same 2-digit major group as described in the Standard Industrial Classification Manual, 1987, incorporated by reference in s. NR 484.05 (1).(1g) "Filterable PM" means particles that have an aerodynamic diameter equal to or less than 100 micrometers that are directly emitted by a source as a solid or liquid at stack or release conditions and captured on the filter of a stack test train.(1i) "Filterable PM 2.5" means particles that have an aerodynamic diameter equal to or less than 2.5 micrometers that are directly emitted by a source as a solid or liquid at stack or release conditions and captured on the filter of a stack test train.(1k) "Filterable PM 10" means particles that have an aerodynamic diameter equal to or less than 10 micrometers that are directly emitted by a source as a solid or liquid at stack or release conditions and captured on the filter of a stack test train.(1m) "Primary PM" means the sum of filterable PM and condensable PM.(1o) "Primary PM 2.5" means the sum of filterable PM 2.5 and condensable PM.(1q) "Primary PM 10" means the sum of filterable PM 10 and condensable PM.(1s) "Process" means an activity occurring at a unit device that generates emissions, controls emissions, or discharges emissions. Note: Examples of processes include combustion, coating, controlling, crushing, or discharging.
(1u) "Process type code" means a brief descriptor of the process type.(2) "Source classification code" means a process-level code that describes the equipment or operation that is emitting a pollutant. Note: Source classification codes are available as set forth by EPA's Emissions Inventory System, which is an information system for storing all current and historical emissions inventory data.
(3) "Unit device" means the physical equipment or equipment line where a process occurs. Note: Examples of unit devices include boilers, coating lines, baghouses, and stacks.
(4) "Unit device type code" means a brief descriptor of the unit device type.Wis. Admin. Code Department of Natural Resources NR 438.02
Cr. Register, May, 1993, No. 449, eff. 6-1-93; am. (1), (2), Register, February, 1995, No. 470, eff. 3-1-95; am. (2), Register, October, 1999, No. 526, eff. 11-1-99.Amended by, CR 21-072: renum. (1) to (1e), cr. (1a), (1g), (1i), (1k), (1m), (1o), (1q), (1s), (1u), r. and recr. (2), cr. (3), (4) Register July 2022 No. 799, eff. 8/1/2022.