{"data":{"id":"us/40-cfr-table-8-to-subpart-jjj-of-part-63","jurisdiction":"us","citation":"40 CFR Table 8 to Subpart JJJ of Part 63","heading":"Table 8 to Subpart JJJ of Part 63—Operating Parameters for Which Levels Are Required To Be Established for Continuous and Batch Process Vents and Aggregate Batch Vent Streams","body":"Device Parameters to be monitored Established operating parameter(s)\nThermal incinerator Firebox temperature Minimum temperature.\nCatalytic incinerator Temperature upstream and downstream of the catalyst bed Minimum upstream temperature; and minimum temperature difference across the catalyst bed.\nBoiler or process heater Firebox temperature Minimum temperature.\nScrubber for halogenated vents pH of scrubber effluent; and scrubber liquid and gas flow rates [§ 63.1324(b)(4)(ii)] Minimum pH; and minimum liquid/gas ratio.\nAbsorber Exit temperature of the absorbing liquid; and exit specific gravity of the absorbing liquid Maximum temperature; and maximum specific gravity.\nCondenser Exit temperature Maximum temperature.\nCarbon adsorber Total regeneration steam flow or nitrogen flow, or pressure (gauge or absolute) a during carbon bed regeneration cycle; and temperature of the carbon bed after regeneration (and within 15 minutes of completing any cooling cycle(s)) Maximum flow or pressure; and maximum temperature.\nOther devices (or as an alternate to the requirements previously presented in this table) b HAP concentration level or reading at outlet of device Maximum HAP concentration or reading.\na 25 to 50 mm (absolute) is a common pressure level obtained by pressure swing absorbers.\nb Concentration is measured instead of an operating parameter.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES","Subpart JJJ—National Emission Standards for Hazardous Air Pollutant Emissions: Group IV Polymers and Resins"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"9104bcc07c309861e8566f260da896c77bfae3218253be99a6bdc81dcbae3827","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-7-to-subpart-jjj-of-part-63","next":"us/40-cfr-table-9-to-subpart-jjj-of-part-63"},"notice":"GroundRules: Original legal text. Not legal advice."}