Section 326 IAC 8-3-4 - Conveyorized degreaser control equipment and operating requirementsAuthority: IC 13-14-8; IC 13-17-3-4; IC 13-17-3-11; IC 13-17-3-12
Affected: IC 13-17-3
Sec. 4.
(a) The owner or operator of a conveyorized degreaser shall comply with the following control equipment and operating requirements: (1) Minimize carryout emissions by: (A) racking parts for optimal drainage; and(B) maintaining the vertical conveyor speed at less than three and three-tenths (3.3) meters per minute (eleven (11) feet per minute).(2) Store waste solvent only in closed containers.(3) Prohibit the disposal or transfer of waste solvent in a manner that would allow greater than twenty percent (20%) of the waste solvent by weight to evaporate into the atmosphere.(4) Repair solvent leaks immediately, or shut down the degreaser if leaks cannot be repaired immediately.(5) Prohibit the use of workplace fans near the degreaser opening.(6) Prohibit visually detectable water in the solvent from exiting the water separator.(7) Equip the degreaser with a permanent, conspicuous label that lists the operating requirements in subdivisions (1) through (6).(b) The owner or operator of a conveyorized degreaser subject to this subsection shall comply with the following control equipment and operating requirements: (1) Equip the degreaser's entrances and exits with downtime covers that are closed when the degreaser is not operating.(2) Equip the degreaser with the following switches:(A) A condenser flow switch and thermostat that shuts off sump heat if condenser coolant stops circulating or becomes too warm.(B) A spray safety switch that shuts off spray pump if the vapor level drops more than ten (10) centimeters (four (4) inches).(C) A vapor level control thermostat that shuts off sump heat when vapor level rises more than ten (10) centimeters (four (4) inches).(3) Equip the degreaser with entrances and exits that silhouette workloads in a manner that the average clearance between the articles and the degreaser opening is either less than: (A) ten (10) centimeters (four (4) inches); or (B) ten percent (10%) of the width of the opening.(4) Equip the degreaser with a drying tunnel, rotating or tumbling basket, or other equipment that prevents cleaned articles from carrying out solvent liquid or vapor.(5) Equip the degreaser with one (1) of the following control devices:(A) A refrigerated chiller.(B) A carbon adsorption system with ventilation that, with the downtime covers open, achieves: (i) a ventilation rate of greater than or equal to fifteen (15) cubic meters per minute per square meter (fifty (50) cubic feet per minute per square foot) of air-to-solvent interface area; and(ii) an average of less than twenty-five (25) parts per million of solvent exhausted over one (1) complete adsorption cycle.(C) VOC emission control equipment that complies with the following: (i) A capture efficiency of at least ninety percent (90%) by weight for the VOC emissions.(ii) Either: (AA) a destruction efficiency of at least ninety percent (90%), by weight; or(BB) an outlet concentration of less than fifty (50) parts per million, by volume, dry basis, for the VOC emissions.(iii) Compliance with the test methods and procedures in 326 IAC 8-1-4(d) through 326 IAC 8-1-4(f).(6) Prohibit the exhaust ventilation rate from exceeding twenty (20) cubic meters per minute per square meter (sixty-five (65) cubic feet per minute per square foot) of degreaser opening unless a greater ventilation rate is necessary to meet Occupational Safety and Health Administration requirements.(7) Cover entrances and exits at all times except when processing workloads through the degreaser.(8) Ensure that the label required under subsection (a)(7) includes the additional operating requirements listed in subdivisions (6) and (7).Air Pollution Control Division; 326 IAC 8-3-4; filed Mar 10, 1988, 1:20 p.m.: 11 IR 2537; readopted filed Jan 10, 2001, 3:20 p.m.: 24 IR 1477; filed Jan 30, 2013, 12:33 p.m.: 20130227-IR-326070352FRAFiled 5/11/2021, 11:22 a.m.: 20210609-IR-326180542FRA