NR 661.1081(11)(11) “Hard-piping” means pipe or tubing that is manufactured and properly installed in accordance with relevant standards and good engineering practices. NR 661.1081(12)(12) “In light material service” means the container is used to manage a material for which all of the following conditions apply: NR 661.1081(12)(a)(a) The vapor pressure of one or more of the organic constituents in the material is greater than 0.3 kilopascals or kPa at 20°C. NR 661.1081(12)(b)(b) The total concentration of the pure organic constituents having a vapor pressure greater than 0.3 kPa at 20°C is equal to or greater than 20 percent by weight. NR 661.1081(13)(13) “Internal floating roof” means a cover that rests or floats on the material surface, but is not necessarily in complete contact with it, inside a tank that has a fixed roof. NR 661.1081(14)(14) “Liquid-mounted seal” means a foam or liquid-filled primary seal mounted in contact with the hazardous secondary material between the tank wall and the floating roof continuously around the circumference of the tank. NR 661.1081(15)(15) “Malfunction” means any sudden, infrequent, and not reasonably preventable failure of air pollution control equipment, process equipment, or a process to operate in a normal or usual manner. A failure that is caused in part by poor maintenance or careless operation is not a malfunction. NR 661.1081(16)(16) “Material determination” means performing all applicable procedures in accordance with the requirements specified in s. NR 661.1084 to determine whether a hazardous secondary material meets standards specified in this subchapter. Examples of a material determination include performing the procedures in accordance with the requirements specified in s. NR 661.1084 to determine the average VO concentration of a hazardous secondary material at the point of material origination; the average VO concentration of a hazardous secondary material at the point of material treatment and comparing the results to the exit concentration limit specified for the process used to treat the hazardous secondary material; the organic reduction efficiency and the organic biodegradation efficiency for a biological process used to treat a hazardous secondary material and comparing the results to the applicable standards; or the maximum volatile organic vapor pressure for a hazardous secondary material in a tank and comparing the results to the applicable standards. NR 661.1081(17)(17) “Maximum organic vapor pressure” means the sum of the individual organic constituent partial pressures that are exerted by the material contained in a tank, and reasonably expected to occur in the tank at the maximum vapor pressure-causing conditions, such as temperature, agitation, or pH effects of combining materials. For the purpose of this subchapter, maximum organic vapor pressure is determined using the procedures specified in s. NR 661.1084 (3). NR 661.1081(18)(18) “Metallic shoe seal” means a continuous seal that is constructed of metal sheets that are held vertically against the wall of the tank by springs, weighted levers, or other mechanisms and is connected to the floating roof by braces or other means. A flexible coated fabric or envelope spans the annular space between the metal sheet and the floating roof. NR 661.1081(19)(19) “No detectable organic emissions” means no escape of organics to the atmosphere as determined using the procedure specified in s. NR 661.1084 (4). NR 661.1081(20)(20) “Point of material origination” means one of the following: NR 661.1081(20)(a)(a) When the remanufacturer or other person that stores or treats the hazardous secondary material is the generator of the hazardous secondary material, the point of material origination means the point where a material produced by a system, process, or material management unit is determined to be a hazardous secondary material excluded under s. NR 661.0004 (1) (za). NR 661.1081 NoteNote: In this case, this term is being used in a manner similar to the use of the term “point of generation” in air standards established for waste management operations in 40 CFR parts 60, 61 and 63, or subject to ch. NR 440, subchs. III and IV of ch. NR 446, or chs. NR 447 to 469. NR 661.1081(20)(b)(b) When the remanufacturer or other person that stores or treats the hazardous secondary material is not the generator of the hazardous secondary material, point of material origination means the point where the remanufacturer or other person that stores or treats the hazardous secondary material accepts delivery or takes possession of the hazardous secondary material. NR 661.1081(21)(21) “Safety device” means a closure device such as a pressure relief valve, frangible disc, fusible plug, or any other type of device that functions exclusively to prevent physical damage or permanent deformation to a unit or its air emission control equipment by venting gases or vapors directly to the atmosphere during unsafe conditions resulting from an unplanned, accidental, or emergency event. For the purpose of this subchapter, a safety device is not used for routine venting of gases or vapors from the vapor headspace underneath a cover such as during filling of the unit or to adjust the pressure in this vapor headspace in response to normal daily diurnal ambient temperature fluctuations. A safety device is designed to remain in a closed position during normal operations and open only when the internal pressure, or another relevant parameter, exceeds the device threshold setting applicable to the air emission control equipment as determined by the remanufacturer or other person that stores or treats the hazardous secondary material based on manufacturer recommendations, applicable regulations, fire protection and prevention codes, standard engineering codes and practices, or other requirements for the safe handling of flammable, ignitable, explosive, reactive, or hazardous materials. NR 661.1081(22)(22) “Single-seal system” means a floating roof having one continuous seal. This seal may be vapor-mounted, liquid-mounted, or a metallic shoe seal. NR 661.1081(23)(23) “Vapor-mounted seal” means a continuous seal that is mounted such that there is a vapor space between the hazardous secondary material in the unit and the bottom of the seal. NR 661.1081(24)(24) “Volatile organic concentration” or “VO concentration” means the fraction by weight of the volatile organic compounds contained in a hazardous secondary material expressed in terms of parts per million or ppmw as determined by direct measurement or by knowledge of the material in accordance with the requirements specified in s. NR 661.1084. For the purpose of determining the VO concentration of a hazardous secondary material, organic compounds with a Henry’s law constant value of at least 0.1 mole-fraction-in-the-gas-phase/mole-fraction-in-the-liquid-phase (0.1 Y/X), which can also be expressed as 1.8 x 10-6atmospheres/gram-mole/m3, at 25 °C shall be included. NR 661.1081 HistoryHistory: CR 19-082: cr. Register August 2020 No. 776, eff. 9-1-20; correction in (5) (a) made under s. 35.17, Stats., Register August 2020 No. 776. NR 661.1082(1)(1) This section applies to the management of hazardous secondary material in tanks and containers subject to this subchapter. NR 661.1082(2)(2) A remanufacturer or other person that stores or treats hazardous secondary material shall control air pollutant emissions from each hazardous secondary material management unit in accordance with standards specified in ss. NR 661.1084 to 661.1087, as applicable to the hazardous secondary material management unit, except as provided for in sub. (3). NR 661.1082(3)(3) A tank or container is exempt from standards specified in ss. NR 661.1084 to 661.1087, as applicable, provided that the hazardous secondary material management unit is a tank or container for which all hazardous secondary material entering the unit has an average VO concentration at the point of material origination of less than 500 parts per million by weight or ppmw. The average VO concentration shall be determined using the procedures specified in s. NR 661.1083 (1). The remanufacturer or other person that stores or treats the hazardous secondary material shall review and update, as necessary, this determination at least once every 12 months following the date of the initial determination for the hazardous secondary material streams entering the unit. NR 661.1082 HistoryHistory: CR 19-082: cr. Register August 2020 No. 776, eff. 9-1-20. NR 661.1083NR 661.1083 Material determination procedures. NR 661.1083(1)(1) Material determination procedure to determine average volatile organic (vo) concentration of a hazardous secondary material at the point of material origination. NR 661.1083(1)(a)(a) Determining average VO concentration at the point of material origination. A remanufacturer or other person that stores or treats the hazardous secondary material shall determine the average VO concentration at the point of material origination for each hazardous secondary material placed in a hazardous secondary material management unit exempted under the provisions of s. NR 661.1082 (3) from using air emission controls in accordance with standards specified in ss. NR 661.1084 to 661.1087, as applicable to the hazardous secondary material management unit. The remanufacturer or other person that stores or treats the hazardous secondary material shall make the determinations according to all of the following: NR 661.1083(1)(a)1.1. Make an initial determination of the average VO concentration of the material stream before the first time any portion of the material in the hazardous secondary material stream is placed in a hazardous secondary material management unit exempted under the provisions of s. NR 661.1082 (3) from using air emission controls, and thereafter make an initial determination of the average VO concentration of the material stream for each averaging period that a hazardous secondary material is managed in the unit.