40 CFR Part 63, Subpart U, Table 7 to Subpart U of Part 63 - Operating Parameters for Which Monitoring Levels Are Required To Be Established for Continuous and Batch Front-End Process Vents and Aggregate Batch Vent Streams

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View PDF at GPO Pt. 63, Subpt. U, Table 7
Table 7 to Subpart U of Part 63—Operating Parameters for Which Monitoring Levels Are Required To Be Established for Continuous and Batch Front-End Process Vents and Aggregate Batch Vent Streams
Control/recovery device Parameters to be monitored Established operating parameter(s)
a 25 to 50 mm (absolute) is a common pressure level obtained by pressure swing absorbers.
b Concentration is measured instead of an operating parameter.
Thermal incinerator Firebox temperature Minimum temperature.
Catalytic incinerator Temperature upstream and downstream of the catalyst bed Minimum upstream temperature; and minimum temperature difference across the catalyst bed.
Boiler or process heater Firebox temperature Minimum temperature.
Scrubber for halogenated vents pH of scrubber effluent; and scrubber liquid and gas flow rates63.489(b)(4)(ii)] Minimum pH; and minimum liquid/gas ratio.
Absorber Exit temperature of the absorbing liquid; and exit specific gravity of the absorbing liquid Maximum temperature; and maximum specific gravity.
Condenser Exit temperature Maximum temperature.
Carbon 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.
Other devices (or as an alternate to the above) b HAP concentration level or reading at outlet of device Maximum HAP concentration or reading.
[65 FR 38093, June 19, 2000]

Title 40 published on 2013-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-03-27; vol. 79 # 59 - Thursday, March 27, 2014
    1. 79 FR 17340 - National Emission Standards for Hazardous Air Pollutant Emissions: Group IV Polymers and Resins; Pesticide Active Ingredient Production; and Polyether Polyols Production
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      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final action is effective on March 27, 2014. The incorporation by reference of certain publications listed in this final rule was approved by the Director of the Federal Register as of March 27, 2014.
      40 CFR Part 63

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United States Code

Title 40 published on 2013-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 63 after this date.

  • 2014-03-27; vol. 79 # 59 - Thursday, March 27, 2014
    1. 79 FR 17340 - National Emission Standards for Hazardous Air Pollutant Emissions: Group IV Polymers and Resins; Pesticide Active Ingredient Production; and Polyether Polyols Production
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final action is effective on March 27, 2014. The incorporation by reference of certain publications listed in this final rule was approved by the Director of the Federal Register as of March 27, 2014.
      40 CFR Part 63