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

Table 4 to Subpart IIII 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 3 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 01-Nov-2017 12:29

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

  • 2017-11-06; vol. 82 # 213 - Monday, November 6, 2017
    1. 82 FR 51380 - National Emission Standards for Hazardous Air Pollutants From the Portland Cement Manufacturing Industry; Residual Risk and Technology Review
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Extension of comment period.
      The public comment period for the proposed rule published in the Federal Register on September 21, 2017 (82 FR 44254), is being extended. Written comments must be received on or before November 21, 2017.
      40 CFR Part 63

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