40 CFR Appendix Table 6 to Subpart QQQQ of Part 63, Default Organic HAP Mass Fraction for Petroleum Solvent Groups a

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Table 6 to Subpart QQQQ of Part 63 - Default Organic HAP Mass Fraction for Petroleum Solvent Groups a

You may use the mass fraction values in the following table for solvent blends for which you do not have test data or manufacturer's formulation data.

Solvent type Average organic HAP mass fraction Typical organic HAP, percent by mass
Aliphatic b 0.03 1% xylene, 1% toluene, and 1% ethylbenzene.
Aromatic c 0.06 4% xylene, 1% toluene, and 1% ethylbenzene.

a Use this table only if the solvent blend does not match any of the solvent blends in Table 5 to this subpart and you only know whether the blend is aliphatic or aromatic.

bE.g., Mineral Spirits 135, Mineral Spirits 150 EC, Naphtha, Mixed Hydrocarbon, Aliphatic Hydrocarbon, Aliphatic Naphtha, Naphthol Spirits, Petroleum Spirits, Petroleum Oil, Petroleum Naphtha, Solvent Naphtha, Solvent Blend.

cE.g., Medium-flash Naphtha, High-flash Naphtha, Aromatic Naphtha, Light Aromatic Naphtha, Light Aromatic Hydrocarbons, Aromatic Hydrocarbons, Light Aromatic Solvent.

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

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United States Code

Title 40 published on 10-May-2017 04:28

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

  • 2017-05-11; vol. 82 # 90 - Thursday, May 11, 2017
    1. 82 FR 21927 - Delegation of New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants for the States of Arizona and Nevada
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Direct final rule.
      This rule is effective on July 10, 2017 without further notice, unless EPA receives adverse comments by June 12, 2017. If we receive such comments, we will publish a timely withdrawal in the Federal Register to notify the public that this direct final rule will not take effect.
      40 CFR Parts 60, 61 and 63

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