1. Regulations
  2. title 40
  3. chapter I-i12
  4. part 63
  5. subpart HHH
  6. appendix

- Appendix: Table 1 to Subpart HHH of Part 63—List of Hazardous Air Pollutants (HAP) for Subpart HHH

CAS Number aChemical name 75070Acetaldehyde 71432Benzene (includes benzene in gasoline) 75150Carbon disulfide 463581Carbonyl sulfide 100414Ethyl benzene 107211Ethylene glycol 75050Acetaldehyde 50000Formaldehyde 110543n-Hexane 91203Naphthalene 108883Toluene 5408412,2,4-Trimethylpentane 1330207Xylenes (isomers and mixture) 95476o-Xylene 108383m-Xylene 106423p-Xylene

a CAS numbers refer to the Chemical Abstracts Services registry number assigned to specific compounds, isomers, or mixtures of compounds.

AUTHORITY: 42 U.S.C. 7401

SOURCE: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.