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frequently then 3 tines in any 12 nonth period: and. e) Accurate Maintenance records pursuant to the requirements of subsection (a); and. 4) Proof, at three-year Intervals, using such . three-year historical records, that such set conforms to the requirements of subsection ()' (Source: Amended at 2 111. R9- 124, effective July 28. 1979) SUBPART C: SOlVOn CtCANING Section 21S.I81 Solvent Cleaning In General The requirements of Sections 2IS.182 through 21S.184 shall not apply: a) To sources whose emissions of volatile organic material do not exceed 6.8 kg (IS .Tbs) In any.one day. nor i.4 kg (3. lbs) In . any one hour; or b) To sources used exclusively for chemical or physical analysis or determination of prodxt quality and caamerclal acceptance, provided that: 1) The operation of the sources. Is not an Integral part of the production process; 2) The emissions from the source do not exceed 363 kg (800 lbs) in any calendar .month; arid. 3) The exempt Ion Is approved In Writing by * theAgency. (Source: Amended'at'3 111. Reg. 124, effective July 28. 1979) Section 215.182 Cold Cleaning a) Operating Procedures: Mai person shall operate a cold cleaning degreaser unless: T) Haste solvent Is stored In covered containers only and not' disposed of In such a manner that mare than 2OX of the waste solvent (by weight) is allowed to evaporate Into the atmosphere: 2) The cover of the degreaser Is closed when parts are not being handled; and 3) Parts are drained until dripping ceases. b) Equipment-Requirements: No person shall operate- a cold cleaning degreaser unless: l) The degreaser'Is equipped wiiih'a cover which Is closed whenever parts are not being handled In the cleaner. The cover shall be designed to be easily operated with one hand or with the mechanical assistance of springs, counter-weights or a powered system U: A) The solvent vapor pressure, is greater than 2 kP (IS anMg or 9.) psl) measured at J8*t |100*7); 8) The solvent is agitated: or - C) .The-solvent :is -heated above ambient room temperature. . . 2) The degreaser- is equipped with a facility . for draining cleaned.parts. The drainage facility shall he constructed so that parts are -enclosed under the cover while draining unless:' . A) The Solvent vapor pressure Is less . . than 4.3 bfa (32 miMg or 0.6 psl). neosured at 38*6-(loom; or - 8) An' Internal dratnage facility cannot be fitted Into the cleaning system. in wnrcr case tne dnirnage raciTfty may be external. I - 3) The degreaser Is equipped-with one of the . _-. following control devices. If the vapor. pressure of the solvent Is'greater;., than 4.3 kPa (.32 onHg or 0:6 psl) measured at 38t (100*F) or If the solvent Is heated above 50*C (120*0 or Its boiling point: A) A freeboard height of 7/10 or the . / ' tnsldewidth of the tank or 91 cm (36 fnr. whichever miss ;or V; v 8) Any other equipment or system of equivalent emission-centroT-e*-- approved by the Agency. Such a < . . . . system may include a water cover. .- refrigerated chiller or carbon adsorber............. . 4) A permanent conspicuous label summarizing tho-operat-1ng-proeedure.'i ffixed-to th- degreaser; and 1 S) If V solvent spray'is'used; tlref degreaser Is equipped with a solid fluid stream '. spray, rather than a fine, atomized or j shower'spray. Section 215.183 Open Tdp Vapor Oegreastng 1 . > ' ' - a),Operating Requirements: No person shall Operate an open top vapor degrcaser-unless i . -T 1) The cover or the degreaser Is closed when workloads are not being processed through > the degreaser; 2)'. Solvent carryout emissions are minimized by; A) Racking parts to allow complete drainage: I 8) Moving parts In and out of the degreaser at less' than T. I'm/taTn (II ft/mln): C) Holding the parts In the vapor zone until condensation ceases; 96 -