40 CFR Appendix Table 4 to Subpart RRRR of Part 63, Default Organic HAP Mass Fraction for Petroleum Solvent Groups 1

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Table 4 to Subpart RRRR of Part 63 - Default Organic HAP Mass Fraction for Petroleum Solvent Groups 1

You May Use the Mass Fraction Values in the Following Fable 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 percent HAP, by mass
Aliphatic 2 0.03 1% Xylene, 1% Toluene, and 1% Ethylbenzene.
Aromatic 3 0.06 4% Xylene, 1% Toluene, and 1% Ethylbenzene.

1 Use this table only if the solvent blend does not match any of the solvent blends in Table 3 to this subpart and you only know whether the blend is aliphatic or aromatic.

2 E.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.

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

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United States Code

Title 40 published on 2015-08-22

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

  • 2017-04-06; vol. 82 # 65 - Thursday, April 6, 2017
    1. 82 FR 16736 - Mercury and Air Toxics Standards (MATS) Electronic Reporting Requirements
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final rule is effective on April 6, 2017.
      40 CFR Part 63