Definitions

As used in sections 33.1-24-02-170 through 33.1-24-02-179, all terms not defined in this section have the meaning given them in North Dakota Century Code chapter 23.1-04 and chapters 33.1-24-01 through 33.1-24-05 and section 33.1-24-05-401. 1. "Equipment" means each valve, pump, compressor, pressure relief device, sampling connection system, open-ended valve or line, or flange or other connector, and any control devices or systems required by sections 33.1-24-02-170 through 33.1-24-02-179. 2. "Hazardous secondary material management unit shutdown" means a work practice or operational procedure that stops operation of a hazardous secondary material management unit or part of a hazardous secondary material management unit. An unscheduled work practice or operational procedure that stops operation of a hazardous secondary material management unit or part of a hazardous secondary material management unit for less than twenty-four hours is not a hazardous secondary material management unit shutdown. The use of spare equipment and technically feasible bypassing of equipment without stopping operation are not hazardous secondary material management unit shutdowns. 3. "In gas or vapor service" means that the piece of equipment contains or contacts a hazardous secondary material stream that is in the gaseous state at operating conditions. 4. "In light liquid service" means that the piece of equipment contains or contacts a material stream where the vapor pressure of one or more of the organic components in the stream is greater than three-tenths kilopascals at twenty degrees Celsius, the total concentration of the pure organic components having a vapor pressure greater than three-tenths kilopascals at twenty degrees Celsius is equal to or greater than twenty percent by weight, and the fluid is a liquid at operating conditions. 5. "Malfunction" means any sudden failure of a control device or a hazardous secondary material management unit or failure of a hazardous secondary material management unit to operate in a normal or usual manner, so that organic emissions are increased. 6. "Open-ended valve or line" means any valve, except pressure relief valves, having one side of the valve seat in contact with hazardous secondary material and one side open to the atmosphere, either directly or through open piping. 7. "Process vent" means any open-ended pipe or stack that is vented to the atmosphere either directly, through a vacuum-producing system, or through a tank (for example, distillate receiver, condenser, bottoms receiver, surge control tank, separator tank, or hot well) associated with hazardous secondary material distillation, fractionation, thin-film evaporation, solvent extraction, or air or steam stripping operations. 8. "Sampling connection system" means an assembly of equipment within a process or material management unit used during periods of representative operation to take samples of the process or material fluid. Equipment used to take nonroutine grab samples is not considered a sampling connection system. 9. "Startup" means the setting in operation of a hazardous secondary material management unit or control device for any purpose.